Dialog Semiconductor SC14A DECT Cordless Voice Module User Manual SC14CVMDECTv1 2ls

Dialog Semiconductor BV DECT Cordless Voice Module SC14CVMDECTv1 2ls

user manual

© 2011 SiTel Semiconductor B.V. Company Confidential 1SC14CVMDECT Cordless Voice ModuleDATASHEET General descriptionThe SC14CVMDECT is a member of the Cordless Module family with integrated radio transceiver and baseband in a single package. It is designed for hosted and embedded cordless voice and data applications in the DECT frequency band. Its simple to use AT Commands set allows setting up of a wireless link between 2 or more nodes without detailed knowledge of the DECT protocol.FeaturesnCompletely ETSI-certifiednETSI 300 444 (DECT GAP) compliantnFCC approvednSupports EU-DECT (CAT-iq V1 wideband audio), DECT6.0 for North America and Japan DECT (pend-ing approval)nUp-to 6 portable parts registered per fixed partnUART interface to external hostnControllable via AT command set (over UART)nSupport voice and low speed datanRF range: 1870 - 1930 MHznReceiver sensitivity < -93 dBmnTransmit power 23 dBm (200 mW)nAntenna’s includednPower supply voltage 1.9 - 3.45VnSmall form factor (25mm * 29mm)nContains both PP and FP functionalitynProgram memory available for custom software.Application ExamplesnCordless IntercomnCordless baby monitornWireless Data applications up to 1.6 Kbit/s.________________________________________________________________________________________________System DiagramSC14CVMDECTFixed Part VoiceHostSC14CVMDECTHostUS/EU/JP*DECTPortable Part 0VoiceSC14CVMDECTHostPortable Part 1VoiceSC14CVMDECTHostPortable Part 5VoiceVoice 32kbits/sData 1.6kbits/s* Only end-productscan be CAT-iq certified*SC14CVMDECT Cordless Voice ModuleAugust 19, 2011 v1.2.1

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 3 August 19, 2011 v1.2.11.0 Connection Diagram1.1 PIN DESCRIPTIONFigure 1 Connection Diagram (Bottom View)MLKJHGFEDCBA121110 9 8 7 6 5 4 3 2 1Table 1: Pin descriptionPin Module Pin nameIn/OutIoutDrive(mA)Reset State DescriptionA1 GND -- -GroundA2 GND -- -GroundA3 GND -- -GroundA4 NC - - I leave unconnectedA5 VDDIO I - - Supply voltage for internal QSPI and data flash. Must be connected to VDD (1.8V).A6 P1[2]/INT2 IO 2 I-PU I/O port.INT2: Interrupt Input.A7 GND -- -GroundA8 GND -- -GroundA9 VBAT I - - Main supply voltage <5.5V. Can be directly connected to a Li-Ion battery. A10 P0[4] / SPI_EN IO 8 I-PU I/O portSPI_ENA11 RSTn I 1 I-PU(200k pull-up)Active low Reset input with Schmitt-trigger input, open-drain output and pull up resistor to internal VDD. Input may not exceed 2.0 V. An internal capacitor of 100nF is mounted on this pin.B1 GND -- -GroundB2 GND -- -GroundB3 CP_VOUT1 O - I Charge Pump Output 1.Must be connected through a capacitor of 1uF to gndB4 P1[5]/INT5 IO 8 O-1 I/O PortINT5: Interrupt Input.

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 4 August 19, 2011 v1.2.1B5 GND -- -GroundB6 P2[6]/INT6 / WTF_INIO 2 I-PU I/O portINT6: Interrupt Input.WTF_IN: -B7 P0[5] / SPI_CLK IO 8 I-PU I/O PortSPI ClockB8 GND -- -B9 P0[1] / URX IO 8 I-PD(10k)I/O portUART Serial InB10 VBATT I - - Secondary supply voltage. Connect to VCCRF.B11 GND -- -GroundB12 NC - - - RF pad, no pad on PCBC1 GND -- -GroundC2 PAOUTn IO 500 O-0 (5k fixed pull-down)CLASSD loudspeaker positive outputC3 GND -- -GroundC4 P2[7]/INT7 IO 8 I-PU I/O portINT7: Interrupt C5 P1[4]/INT4 IO 1/2 I-PD I/O portINT4: InterruptC6 P1[1]/INT1 IO 2 I-PU I/O Port INT1: InterruptLE: - INT6: secondary InterruptC7 GND -- -GroundC8 P0[0] / UTX O 8 I-PU I/O PortUART Serial OutC9 GND -- -GroundC10 JTAG IO 8 I-PU JTAG-SDI+; one wire Debug interface with open-drain.Pullup with R=1k to Vdd.C11 VCCRF I - - RFSUPPLY input < 3.45V. Connect to VBAT if VBAT less than 3.45V. Else this pin must be supplied from and external 3.3V LDO.Refer to Table 16 for supply requirements.D1 GND -- -GroundD2 PAOUTp IO 500 O-0 (5k fixed pull-down)CLASSD loudspeaker positive outputsD3 PON I I (270k fixed pull-down)Power on, Switches on the device if Voltage > 1.5V. May be directly connected to VBAT, also with Li-Ion batteriesTable 1: Pin description (Continued)Pin Module Pin nameIn/OutIoutDrive(mA)Reset State Description

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 5 August 19, 2011 v1.2.1D4 CHARGE I - I-PD(270k fixed pull-down)Charger connected indication. Switches on the device if voltage > 1.5v. Must be connected to charger via resistor R>(Vcharger_max-3V)/10 mA (round to next largest value in range). If no charger used, Leave unconnected if not used.Charger is currently not supported.D5 GND -- -GroundD6 GND -- -GroundD7 GND -- -GroundD8 GND -- -GroundD9 P2[4]/SCL1/PCM_DOIO 8 I-PU I/O port SCL1; I2C clockPCM_DO: PCM Data outputD10 VDD O - - Digital Core supply voltage (1.8V TYP).Output from internal regulator.D11 P2[5]/PCM_FSC IO 8 I-PU I/O PortPCM_FSC: PCM Frame SyncE1 VDDPA I - - CLASSD Audio Amplifier supply voltage up to 3.45V.E2 GND -- -GroundE3 CHARGE_CTRL O - O-0 Charge control pin.Leave unconnected if not used.Charger is currently not supported.E4 SOCn I - I Battery State Of Charge negative input. Star point connected to the SOC resistor. Charger is currently not supported: connect to GNDE5 GND -- -GroundE6 GND -- -GroundE7 GND -- -GroundE8 GND -- -GroundE9 GND -- -GroundE10 P0[7] / SPI_DI IO 8 I-PU I/O PortSPI Data InputE11 GND -- -GroundF1 SOCp I - I Battery State of charge positive input.Charger is currently not supported: connect to GNDF2 P1[0]/INT0/ADC1 IO 2 I-PU I/O PortINT0: Interrupt 0ADC1; ADC input 1F3 ADC2/NTC I - I ADC2NTC protection input for Li-Ion charger circuit.Charger is currently not supported: connect to GNDF4 NC - - - leave unconnectedF5 ULP_PORT I - I Ultra Low Power Port PinUltra low power is not supported by the software, connect to gnd.F6 ULP_VBAT I - I Ultra Low Power Supply PinUltra low power is not supported by the software, connect to gnd.Table 1: Pin description (Continued)Pin Module Pin nameIn/OutIoutDrive(mA)Reset State Description

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 6 August 19, 2011 v1.2.1F7 ULP_MAIN_CTRL- I-0 Ultra Low Power Main ControlUltra low power is not supported by the software, connect to gnd.F8 NC - - - RF pad, must be left unconnectedF9 P2[3]/SDA1 / PCM_DIIO 8 I-PU I/O PortSDA1: I2C DataPCM_DI: PCM Data inputF10 P1[3]/INT3 IO 1/2 I-PD I/O PortINT3: InterruptF11 P0[6] / SPI_DO IO 8 I-PU I/O PortSPI Data OutG1 GND -- -GroundG2 LSRn O - O Negative loudspeaker outputG3 GND -- -GroundG4 P3[3]/ADC0 IO 8 I I/O PortADC0; ADC input 0G5 GND -- -GroundG6 NC - - - leave unconnectedG7 GND -- -GroundG8 NC - - - leave unconnectedG9 GND -- -GroundG10 GND -- -GroundG11 GND -- -GroundH1 VREFM - Negative microphone reference (star point), connect to gnd.H2 LSRp O - O Positive loudspeaker outputH3 P3[7]/RINGp IO 4 I I/O PortRINGp: Ringer detection inputH4 NC - - -H5 GND - - I GroundH6 GND - - I GroundH7 P2[2]/PCM_CLK I/O 8 I-PD I/O PortPCM_CLK: PCM clock input/outputH8 NC - - - RF pad, must be left unconnectedH9 GND -- -GroundH10 GND -- -GroundH11 GND -- -GroundJ1 GND -- -GroundJ2 MICh I - I Headset microphone input with fixed input protectionJ3 GND -- -GroundJ4 P3[5]/RINGING / RINGOUTIO 4 I I/O PortRINGING: Ring detection InputRINGOUT: - J5 GND -- -GroundJ6 NC - - - RF pad, must be left unconnectedTable 1: Pin description (Continued)Pin Module Pin nameIn/OutIoutDrive(mA)Reset State Description

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 7 August 19, 2011 v1.2.1• “NC” means: leave unconnected.•GND means internally connected to Ground plane of module (51 pins in total)• GND means connect to Ground (not supported, functional pin)Reset States:• I = Input• O= Output• I-PD = Input, pulled down• I-PU = Input, pulled up• O-0 = Output, low• O-1 = Output, highJ7 GND -- -GroundJ8 P2[1] / PWM1 / LED4IO 8 I I/O PortPWM1: Pulse Width Modulation outputLED4: 2.5/5mA LED current sinkJ9 GND -- -GroundJ10 GND -- -GroundJ11 GND -- -GroundK1 VREFp O - I Positive microphone supply voltageK2 MICp I - I Positive microphone inputK3 P3[2]/CIDINp IO 8 I I/O PortCIDINp: Caller id opamps positive inputK4 P3[6]/RINGn IO 3 I I/O PortRINGn: RING opamp negative inputK5 P3[4]/PARADET IO 8 I I/O PortPARADET: Parallel set detectionK6 NC - - - leave unconnectedK7 NC - - - leave unconnectedK8 P2[0]/ PWM0 / LED3IO 8 I I/O PortPWM0: -LED3: 2.5/5mA LED current sinkK9 GND -- -GroundK10 NC - - - No ground under the pad (RF sensitive)K11 NC - - - No ground under the pad (RF sensitive)L1 GND -- -GroundL2 MICn I - I Negative handset microphone inputL3 GND -- -GroundL4 GND -- -GroundL5 NC - - - RF pad, must be left unconnectedL6 GND -- -GroundL7 GND -- -GroundL8 NC - - - leave unconnectedL9 GND -- -GroundL10 NC - - - No ground under the pad (RF sensitive)L11 GND -- -GroundM2 NC - - - RF pad, no pad on PCBTable 1: Pin description (Continued)Pin Module Pin nameIn/OutIoutDrive(mA)Reset State Description

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 8 August 19, 2011 v1.2.12.0 Introduction 2.1 SCOPEThe SC14CVMDECT is a programmable DECT module for voice and low data rate services. The internal software-stack receives commands and data from the application, for instance to setup a link to other modules. The user interface can be implemented on the module itself or on anexternal host processor. The internal FLASH provides user space where custom applications can be located. The module converts analog signals to a digital stream, compresses/decompresses them according to the DECT standards and transmits/receives them over the air interface. The DECT protocol-stack in each module supports both PP and FP functionality.2.2 ORDERING INFORMATIONSC14CVMDECT AF012.3 REFERENCES1. SC14CVMDECT AT Commands2. SC14CVMDECT AT Commands Communication Library3. SC14CVMDECT_PC_MMI_User_Guide4. Athena User Manual2.4 GLOSSARY AND DEFINITIONSAPI Application Programming InterfaceAT Command Interface The software interface between the MCU and SC14CVMDECTCAT iq Cordless Advanced Technology, Internet and QualityCodec Coder and DeCoder converts analog signals to digital signals and vice versa.Conference Same as intercom, but generally including an external party.CRC Cyclic Redundancy CheckCVM Cordless Voice ModuleDECT Digital Enhanced Cordless TelephoneDSP Digital Signal ProcessorEC Echo CancellerEMC Equipment Manufacturer’s Code (please refer to ETSI EN 300 175-6)ESD Electro Static DischargeEQ EqualizerFP Fixed PartGFSK Gaussian Frequency Shift KeyingHW HardwareInband tones Tones played by the application itself and not from external e.g. line.Intercom Internal call between 2 or more parties.IPEI International Portable Equipment Identity (please refer to ETSI EN 300 175-6)IWU InterWorking Unit (please refer to ETSI EN 300 175-1)LCD Liquid Crystal DisplayLDR Low Data RateMCU Micro Controller UnitMMI Man Machine Interface (keypad, LCD, buzzer, microphone, earpiece, speaker, headset)NTP Nominal Transmit PowerPAEC Perceptual Acoustic Echo Canceller PC Personal Computer, IBM compatiblePCB Printed Circuit Board without componentsPP Portable PartPSTN Public Switched Telephone NetworkPOTS Plain Old Telephone SystemRF Radio FrequencyRFPI Radio Fixed Part Identity (please refer to ETSI EN 300 175-6)RLR Receive Loudness RatingRSSI Radio Signal Strength Indication (please refer to ETSI EN 300 175-1)Sidetone Feedback of microphone signal to earpiece.SLR Sending Loudness RatingSPI Serial Periphelal Interface BusSW SoftwareUART Universal Asynchronous Receiver and Transmitter.VAD Voice Activity DetectionWalky Talky Two PPs connected without an FP

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 9 August 19, 2011 v1.2.13.0 Cordless Voice Module functionalityThis section describes the key functions and features supported by the SC14CVMDECT as shown in Figure 2.3.1 MODULE HARDWARE The SC14CVMDECT internal hardware consist of:• An Internal Microprocessor (MCU) running from FLASH handling the AT command interpreter, the protocol stack and further internal control.• A 4kByte EEPROM used by the protocol stack and for user EEPROM variables.• A DSP for the Audio signal processing like ADPCM voice compression towards the Codecs.• A codec to convert the analog signals to digital signals and vise versa.• Input/Output ports which can be toggled high/low if output or a high/low digital level can be read.• A 10.368 MHz XTAL clock. This crystal is automatically tuned by the module software for the best Radio Performance.• Voltage regulators to convert the external supply voltage to a stable supply voltages for the core and I/O’s.• A DECT Radio transceiver with two built-in antenna circuits. The antenna’s are on the module, so no RF knowledge is required.• A UART for communication to a host.3.2 SOFTWARE CONTROLThe SC14CVMDECT can be controlled via an AT Command Set over the UART interface or from the internal user application. The external controller handles the user interface (MMI) and sends/receives AT commands and responses to the internal protocol stack. A detailed functional and data flow description, including an example of the start-up sequence, can be found in document reference [1].3.3 DECT PROTOCOL STACKThe SC14CVMDECT internal protocol stack is based on the ETSI DECT specifications and is compliant with ETSI 300 444 (GAP).The product supports up to 6 DECT GAP compliant PP units to one FP station.Figure 2 SC14CVMDECT functional overviewUART interfaceto hostAT commandsAT commandinterpreterRadioProtocolStack DSPPortsDECTEEPROM XTALFLASHCodecUserMICLSRHeadset ControlUARTSWSPI

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 10 August 19, 2011 v1.2.13.4 PORTABLE PART CONFIGURATIONA Portable Part configuration with SC14CVMDECT requires additional external parts as shown in Figure 3. .Table 2 provides the overview of the supported interfaces for a Portal Part. A portable part supports following main functional features:•Conferencing (currently not supported*)•Intercom•Battery management (currently not supported*)•Custom Ringtones (currently not supported*)•Earpiece, handsfree and headset.•Automatic headset detection (currently not supported*)•Baby monitor (currently no VAD support*)Figure 3 PP ConfigurationsSC14CVMDECT(optional)(optional)LoudspeakerMIC2EarpieceMCU (handset speaker)HeadsetUARTPorts PCM(optional)Table 2: PP Hardware support overviewItem Supported RemarkBattery connection No Non rechargeable or rechargeable 2 cells NiMH, NiCd or Li-IonFor Li-Ion an 3.3V LDO is required to supply the system.Battery charger No Use external charger.Keypad No on external MCUDisplay No on external MCUIO Ports Yes 4 free digital IO port pinsPCM interface Yes 1x16 bits, 8,16 kHz, strobes 1,8, 16, 32 bitsPCM voice coding formats Yes uLaw (64kbits/s), Alaw (64kbits/s), G.726 ADPCM (32kbits/s), G.722 ADPCM (64kbits/s), Linear (128kbits/s)UART Yes 9600-115.2kbaud, used for AT-commandHeadset detection YesHeadset earpiece Yes Connected to LSRp,LSRnHeadset Microphone Yes Connected to MICpHandsfree Microphone Yes Connected to MIChHandsfree speaker Yes Connected to PAOUTP/n (No SW support)Radio Yes Integrated with two antenna’s

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 11 August 19, 2011 v1.2.1•PCM interface (one channel)•Walky Talky mode (currently not supported*)•Low Speed Data (1.6kbit)•LU10 data channel (54kbit/sec) (Currently not supported*)* Expected in Q2 2012

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 12 August 19, 2011 v1.2.13.5 FIXED PART CONFIGURATIONA Fixed Part configuration with SC14CVMDECT requires additional external parts as shown in Figure 4. .Table 3 provides the overview of required and available interfaces for a basic or a feature rich cordless FP with the SC14CVMDECT. .A fixed part supports following main functional features:•Conferencing (currently not supported*)•Intercom•Custom Ringtones (currently not supported*)•Earpiece, handsfree and headset.•Automatic headset detection (currently not supported*)Figure 4 FP ConfigurationSC14CVMDECT(supported in future versions)(optional)LoudspeakerMIC2EarpieceMCU (handset speaker)SupplyPortsHeadsetRegulatorPCMAnalog frontendcan be used forPSTN line interfaceUART(optional)Table 3: FP Hardware support overviewItem Supported RemarkSupply Regulator No Use external 3.3V LDO.Keypad No on external MCUDisplay No on external MCUIO Ports Yes 4 free port pinsPCM interface Yes 4x16 bits, 8,16 kHz, strobes 1,8, 16, 32 bitsPCM voice coding formats Yes uLaw (64kbits/s), Alaw (64kbits/s), G.726 ADPCM (32kbits/s), G.722 ADPCM (64kbits/s), Linear (128kbits/s)UART Yes 9600-115.2kbaud, used for AT-commandHeadset detection YesHeadset earpiece Yes Connected to LSRp,LSRnHeadset Microphone Yes Connected to MICpHandsfree Microphone Yes Connected to MIChHandsfree speaker Yes Connected to PAOUTP/n (No SW support)PSTN Line interface Yes CID, Ring detection, Line-in, Linout, Line reversal, paralle set detection (SW On request)Radio Yes Integrated with two antenna’s

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 13 August 19, 2011 v1.2.1•Baby Monitor (currently not supported*)•PCM interface (4 channels)•Low Speed Data (1.6kbit)•LU10 data channel (54kbit/sec) (Currently not supported*)•Base Station For Sensor applications (Currently not supported*)* Expected in Q2 2012

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 14 August 19, 2011 v1.2.13.6 LIGHT DATA APPLICATIONThe SC14CVMDECT supports Low Data Rate (LDR) transmission up to 1.6 kbits/s. Packets with a length of upto 30 bytes payload can be transmitted and received.One SC14CVMDECT is configured as FP and the others are configured as PPs (Figure 5). The host sends/receives AT commands (over UART) to/from PP or FP as shown in Table 4.Up to six PPs can be registered to one FP.See document reference [1] for more information on the AT commands to support LDR. Table 4: Low Data ServicesDirection Supported CommentHost to PP to FP YesHost to FP to PP YesPP to PP Yes Indirect via FPFigure 5 Light Data application1.6 kbits/s1.6 kbits/sSC14CVMDECTSC14CVMDECTSC14CVMDECTPPFPPP

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 15 August 19, 2011 v1.2.13.7 FUNCTIONAL OVERVIEWTable 5: Functional overviewFunctionality Sup-ported RemarkStandard FP audio control feature: Call handlingPP to FP, FP to PP YesIntercom No PP to FP, FP to PPConference call NoCall forwarding No Transfer call between PPs not possible.Page call Yes FP pages all PPs (PP locator)ProtocolManual registration YesNumber of registered PPs per FP Yes 1 to 6Low rate data transfer Yes 1.6 Kbit/s on the air-interface (30 bytes payload)Audio and toneMicrophone mute Yes PP only. Mute of MIC in all audio connections are possibleTone generation Yes Melody generator with 7 polyphonic tonesAudio Volume control Yes 6 steps are adjustable by EEPROMTone Volume control Yes 6 steps are adjustable by EEPROM Headset support YesHandsfree/Speakerphone Yes PP onlyGeneralReal time clock Yes Accuracy depending directly on crystalReal time clock synchronization Yes All PP clocks are kept in synchronization with the FPSW EEPROM Storage Yes Internal on ModuleBattery Charge Management NoPSTN line interface support No PSTN software on RequestI/O port support Yes 4 pins I/OPort Interrupt support No

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 16 August 19, 2011 v1.2.14.0 Functional description4.1 UART INTERFACEThe UART isnormally used for AT commands, but can also be used for software upgrades and debugging. The UART is a full duplex UART with frame type: 1 start bit, 8 data bits (LSB first), 1 stop bit, no parity and a baud rate of 115.200 kBaudThe UART hardware interface uses 3 wires(see Figure 6) .Caution: All signals are 1.8 V. An external V.24 line driver must be provided if the UART port of the module is connected to a standard V.24 device. Connecting the module without a driver may damage the module.4.2 EEPROM4.2.1 EEPROM layoutThe SC14CVMDECT PP and FP include a 4 Kbyte EEPROM which is divided into two areas (see Table 6).A detailed overview of the EEPROM parameter is found in document reference [2].Some parts of the EEPROM parameters are read into the SC14CVMDECT during the start up and other parts are used by the SC14CVMDECT software during execution. The EEPROM parameters are divided into 2 types:• Factory type • normal type. The factory type is specific for the SC14CVMDECT and should only be set by production. The factory types are either parameters for adjustments used by the baseband or the radio interface, or is used to setup the SC14CVMDECT into special modes. The factory types will only be modified by changing the factory programmed default value. See document reference [2]. Only users with “debug” authorization can modify these EEPROM parametersThe other “normal” EEPROM parameters can be reset to default values by running a soft default setting (default batch file).4.2.2 EEPROM access by MCUThe host is able to read or modify the EEPROM parameters or limited free EEPROM areas via AT commands AT+WEExx. Access to the EEPROM parameters depends on the authorization level set by the AT+WULA parameter:0 = Anonymous User with Lowest Authority (not able to read from and write to EEPROM)1 = Power User. Able to read from all EEPROM locations and write to locations 0x0F00..0x0FBF (user space). Password: 748357.2 = Debug User Highest Authority.Able to read from and write to EEPROM (audio and stack related parameters. Contact SiTel Semiconductor for the password.Figure 6 UART hardware configurationTable 6: EEPROM mapEEPROM space Size UsageSC14CVMDECT 3.6 Kbyte Used for RF, audio, battery, tone setup, data base, etc.User 0.4 Kbyte. Can be used for MMI applications such as User information.

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 17 August 19, 2011 v1.2.14.3 PP AUDIO CONFIGURATIONSThe SC14CVMDECT audio is supporting standard DECT audio qualities. The audio gain and volume parameters are placed in the EEPROM. The DECT gains can be adjusted to meet the TBR38 and TBR10 audio level requirements by using the SC14CVMDECT application reference design. For other line and acoustic designs it is needed to adjust and tune the audio setup.4.3.1 Audio connectionThe SC14CVMDECT PP audio connections are show in Figure 7. Refer to “Example Application Diagram” on page 38 for detailed component values..Earpiece or small loudspeaker connectionThe earpiece loudspeaker can be connected either differentially or single-ended. Dynamic loudspeakers with an impedance of 30  can be connected as well as ceramic loudspeakers equivalent to 600  and 30 F can be connected. Refer to Table 11 for a detailed specification or the earpiece loudspeakers.The earpiece is connected to the LSRp and LSRn pins.Microphone connectionThe microphone can be connected either single-ended via MICp or differentially to MICp and MICnHeadset connectionThe headset microphone must be connected to the MICh pin. The headset earpiece is connected to the LSRp.Microphone supply connectionFor active microphones a voltage source with high supply voltage rejection ratio is provided on supply pins VREFp/VREFm. Filtering of internal and external reference voltages is provided with internal capacitor. No external capacitor shall be connected to the VREFp. To avoid audible switching noise it is important that the ground supply signals are directly “star point” connected to the VREFm and not via a common ground plane. From this VREFm star point, one connection is made to the common ground plane.Loudspeaker connection (supported in future releases)For the handsfree operation an 4 ohm loudspeaker must be connected to the PAOUTp and PAOUTn pins as shown in Figure 8. The VDDPA is the supply pin.Refer to Table 12 for a detailed specification of the external components around the loudspeaker. These components are necessary to guarantee lifetime of the module.Figure 7 Audio connectionsLSRnLSRpMIChMICnVREFmMICpVREFpFigure 8 Loudspeaker connectionPAOUTpPAOUTnVDDPAVSS/GNDC_VDDPACs_PAOUTRs_PAOUTCs_PAOUTRs_PAOUT

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 18 August 19, 2011 v1.2.14.3.2 Audio ModesThe PP audio handling consists of four audio states. In these states the audio subsystem is configured for a certain audio mode:1. Idle state (not relevant for microphone configuration)2. Earpiece Mode (Handset Speaker)3. Handsfree or Speakerphone Mode4. Headset modeSelection between the modes is done by API calls; see document reference [1].The Alert state is for tone playing and is entered automatically when tones are played using the API calls. The Alert state can originate from idle earpiece, handsfree or headset state.Figure 9 PP Audio mode

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 19 August 19, 2011 v1.2.14.3.3 PP Audio Codec adjustmentThe audio codec settings for the loudspeaker and Microphone must be preconfigured in the EEPROM for each mode. The EEPROM parameter fields for Audio.Earp.xxx, the Audio.Heads.xxx and Audio.SpkPh.xxx have a default value but may be modified to tune the settings.4.3.4 General Audio adjustmentFor each audio mode, the receive (RLR) and transmit (SLR) audio paths must be adjusted. RLR and SLR are adjusted in the registers in the EEPROM for each audio state; see document reference [2].4.3.5 Power managementTo minimize the current consumption the PP will shutdown all codec amplifiers in Idle state. This means that all reference voltages in the front-end will be disabled. This feature can be disabled in the EEPROM if the reference voltages for some reasons are needed in Idle state.4.3.6 Earpiece ModeIn Earpiece mode (Handset Speaker) an artificial sidetone is generated. The level of the sidetone can be adjusted and setup in the EEPROM through parameter fields Audio.Earp.Vol.Elementx,SideToneGain and Audio.Heads.Elementx.SideToneGain. In Earpiece mode it is possible to adjust the volume in the Earpiece via the API calls. In Earpiece mode the PP audio is routed as shown in Figure 11.4.3.7 Alert modeThe Alert mode is for generating tone and melodies in the Speakerphone loudspeaker. In Alert mode it is possible to adjust the volume in the speaker via the API calls.4.3.8 PP Volume The PP supports 6 volume steps, which are EEPROM configurable through parameter fields Audio.Earp.Vol.xxx, the Audio.Heads.Vol.xxx and Audio.SpkPh.Vol.xxx. The volume steps must be set initially in the EEPROM during production..Inband tones will be affected by the volume adjustments, since the volume control is placed after tones are added to the signal..Figure 11 shows the Audio flow. Here is the list of main functions:EQ Equalizernc100Hz 100Hz cancellerSidetone SidetoneEC Echo CancellerVol. Ctrl Volume ControlTonegen Tone generatorFigure 10 Handset Volume Configuration

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 20 August 19, 2011 v1.2.1.4.3.9 PP Audio equalizationTo enable adjustments of the frequency response the PP contains four programmable filters: 2 in RX direction and 2 in TX direction (see Figure 11).By default these filters are loaded with bypass coefficients, but the API contains commands to load new coefficient for all filters.Equalizer filters are part of the audio routes for all audio modes and are placed as shown in Figure 11.For a detailed description of the filter functionality please refer to API documentation; see document reference [1].4.4 CALL HANDLING4.4.1 FP to PP CallWhen the FP initializes a call to a PP, a radio connection is set up to all the PP applications to make it possible for the PP Application Software to indicate that there is an incoming call.It is possible to configure the ringing indication using broadcast to make all 6 PPs ringing. When receiving the call, the PP signals the call to the MMI Software.4.4.2 PP to FP CallWhen the MMI Software signals the PP to establish a call, the PP opens the radio connection to the FP. 4.4.3 Intercom and ConferenceNot supported.4.4.4 Call TransferCall transfers are not supported.4.4.5 Page CallThe Page call is a FP functionality used to locate the registered PPs. FP paging does not establish a normal audio connection and is terminated when answered by the PP. In FP Speakerphone mode a voice call can be established when the paging is answered.4.4.6 Connection scenariosThe following voice connections are supported.• PP to FP• FP to PP.4.5 TONE/MELODY HANDLINGThe tone component handles the generation of various tones in the device. Both tones/melodies in a FP and PP configuration are supported. Main features of the tone component are:The main features of the tone component are:• Ringer tones and melodies (7 tone polyphonic)• Alert tones (key sound, error tones, confirmation tones, etc.)• Inband tones (dial tone, net-congestion tone, busy tone, etc.)• Single tone generation4.6 DATE AND REAL-TIME CLOCKThe FP base has a real-time clock feature, which (when activated) broadcasts the date and clock to the PPs. Activation of the date and real-time clock is done by setting the date and clock via the PP.The clock is with hours, minutes and date. The clock supports the leap year. Daylight saving is not supported and must be handled by the MMI application.The PP clock is synchronized with the FP every time a broadcast is received. If the PP goes out-of-lock, the PP itself calculates the clock until the PP is again within the range of the FP. The updated clock can then Figure 11 PP Audio RoutingEQEQ nc100HzECVol.ctrltonegenRx_inTx_outSidetone

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 21 August 19, 2011 v1.2.1be read locally from the MMI Software.To adjust the clock in the base station, a service connection can be setup which can be set by commands from the PP.The clock can also be read and set directly from an external microprocessor or through the MMI software on the FP base.The real-time clock accuracy depends directly on the SC14CVMDECT crystal. When the SC14CVMDECT is configured as a PP, the clock has the same accuracy as the FP clock. But, when the PP synchronises with a FP, the PP crystal is synchronized with the FP crystal and the PP clock will change accordingly.The accuracy is expected to be within 1 minute for up to 6 weeks without being locked to a FP. Figure 12 Clock synchronization

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 22 August 19, 2011 v1.2.14.7 PROTOCOL STACKThe protocol stack handles the RF interface. For the SC14CVMDECT the DECT TDMA is used. The protocol features encryption.4.7.1 DECT TBR22The SC14CVMDECT protocol supports the DECT GAP standard. DECT TBR22 GAP type approval however is optional.To pass a GAP type approval, a disable of the PP authentication and encryption during conversation is needed for some TBR22 test cases (DLC test cases). This can be done via EEPROM address 0x00F0.4.7.2 Out-of-Range handlingWhen the PP goes in-range or out-of-range a signal is sent from the PP to the MMI Software indicating whether the PP is in-lock or is out-of-lock with the FP.4.7.3 Pre-amble Antenna diversityTo optimize the audio quality caused by rapid changing radio paths (fading), the SC14CVMDECT supports pre-amble antenna diversity. The pre-amble diversity algorithm uses RSSI measurements to judge the radio signal strength on both antennas and, as a result of it, the choice of the best performing antenna is determined. The antenna will be used for the receive slot and the next transmit slot.The pre-amble antenna diversity is supported by default. The pre-amble diversity can be disabled by EEPROM to let the SC14CVMDECT support a single antenna. See document reference [2].In general an FP uses diversity and a PP does not.4.7.4 Low Speed DataDuring a voice call or using a service call, data can be transferred at a rate of about 1.6 Kbit/s using IWU to IWU messaging..Figure 13 Low Speed Data ScenarioFPPPPP

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 23 August 19, 2011 v1.2.1The following data connections are supported:• PP to PP (point to point) • FP to PP, PP to FP• PP to all PPs (broadcast) • FP to all PPs (broadcast) All communication is routed via the FP. The FP has number #6. See Figure 14.4.7.5 Broadcasting messagesThe broadcast message is 19 bytes at a time and can real-time clock from the FP to the PP when the real-time clock is activated.When broadcasting data no active connections are established.The data is transmitted from the FP and received by any registered PP. The communication is only one way. Therefore, the broadcast data is not secured because there is no retransmission.If the PP does not receive it right the first time, the broadcast data is lost.4.7.6 IWU to IWU messaging The protocol in the SC14CVMDECT module is made according to the DECT/GAP standard as defined in EN 300 175 and EN 300 444.The DECT standard defines an EMC code (see EN 300 175-5, chapter 7.7.23.). This code is unique for a DECT product and must be programmed by the DECT manufacturer to the correct manufacturer code. The EMC code must be the same for SC14CVMDECT based product families when using the IWU to IWU messaging.If the SiTel default EMC EEPROM value is changed the IWU to IWU messaging may not operate correctly.IWU data is transferred in a FA format frame; see chapter 6.1 in EN 300 175-4. This frame has an information field of maximum 63 bytes of which maximum 52 bytes can be used for IWU data. With the SC14CVMDECT it is only possible to send 5 frames in a row without pause. The following frame must be an acknowledge-frame to secure that the internal buffers within the SC14CVMDECT are emptied.The FA frame is segmented in 5 bytes fragments and transferred over the air-interface in the A-field. The 2-bytes CRC is used to determine if the data is received correct. If the data is not received correct this is signalled back to the transmitter by the Q2 bit, and the data is retransmitted.The FA frame has a 2 bytes checksum, used to determine if the complete packet is received correct. If A checksum error is signalled back to the transmitter and the complete packet is retransmitted. The packet will re-transmit until it is received correctly, or the link is closed.More transmitted packets will be received in the same order as they were transmitted. The application must handle flow control, if needed.4.8 REGISTRATIONThe PP and the FP must be paired using a procedure called Registration. Without Registration, the PP will be out-of-lock and will not be able to establish a link to a FP and therefore not be able to make a call. The registration uses the unique product identities and secures the PP and FP to allow no cross-communication. To avoid cross-communication it is very important that all the PPs and the FP use an unique numbering scheme.The PP can be deregistered from a FP either via the FP or PP MMI Software using the command interface. It is also possible to deregister a PP from another registered PP.It is possible to pair a PP and FP during the production. 4.8.1 Handling product identitiesTo secure that the FP and PPs do not make cross-communications a unique ID must be entered into the EEPROM of an FP or PP. For the DECT version the ID for the FP is named RFPI and for the PP the ID is named IPEI. These numbers are factory settings. After a successful registration, the IPEI is stored in the FP and the RFPI is stored in the PP. In this way the two parts are known to each other and are allowed to make connections. The registration data are automatically stored in EEPROM of the FP and PP while making the registration.It is possible to register the same PP to 2 FPs, but it can only be used in one FP at the same time.Figure 14 Data connection PP0 to PP1 or allFP#6PP#3PP#4PP#5PP#0PP#1PP#2

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 24 August 19, 2011 v1.2.14.8.2 DeregistrationThere are two ways of deregistering a PP from an FP:• Remote FP and PP deregistrationThe correct way to deregister a PP from an FP is to deregister it remotely in the FP. If this is done over a service connection from the PP to the FP, the FP actually performs the deregistration and then it is automatically signalled to the PP which in turn will drop out- of-lock. Using this method it is also possible to deregister other PPs registered to the FP from one PP.Removing all registration at once from the FP (e.g. in case the original PPs are lost).4.9 PCM INTERFACEThe audio is routed between the MCU and the CVM via the PCM bus. The MCU is responsible for selection and enabling of the audio path between the PCM bus and the CVM when calls to the external line are established. This is done with AT commands.The CVM is responsible for connecting the right PCM channel to the right handset for external calls when the audio path between the CVM and the handset is opened. The physical PCM interface formats are illustrated in the figures in this section.The CVM supports the following PCM data formats Linear PCM, 8 kHz sample rate.Used for narrowband calls (G.726).Linear PCM, 16 kHz sample rate.Used for wideband calls (G.722).G.711 – A-law, 8 kHz sample rate.Used for narrowband calls (G.726).G.711 – u-law, 8 kHz sample rate.Used for narrowband calls (G.726).• Compressed wideband using A-law, 16 kHz sample rate. The 16 bit PCM data is encoded as two 8 bit audio samples if 8 kHz frame sync is used. Used for wideband calls (G.722).• Compressed wideband using u-law, 16 kHz sample rate. The 16 bit PCM data is encoded as two 8 bit audio samples if 8 kHz frame sync is used. Used for wideband calls (G.722).Synchronization modesIn slave mode the PCM interface can be configured for the following synchronization modes: • Asynchronous system clock: In this mode the clock of the module is not synchronized to the PCM clock. This means that audio samples will be either discarded in case the master PCM clock is faster than the clock of the module or samples will be repeated in case the master PCM clock is slower. • Synchronous system clock: In this mode the clock of the module will be adjusted to follow the PCM clock provided by the master. In this case all audio samples will be kept if the provided PCM clock has an accuracy of +/- 5ppm which is a DECT radio requirement.Figure 15 Handling Product Identities

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 25 August 19, 2011 v1.2.1The MCU must make sure that the PCM data format matches the CODEC selected for the call. Modifying the CODEC requires the PCM data format to be changed too. The following figures illustrate the PCM bus with different PCM data formats (PCM CODEC’s).Figure 16 PCM Interface Formats

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 26 August 19, 2011 v1.2.1Figure 17 PCM bus with linear PCM, 8kHz sample ratePCM CLK8 KHz FSCPCM inPCM outChannel 0Channel 0Channel 1Channel 1Channel 0Channel 0Channel 1Channel 1AP_DATA_FORMAT_LINEAR_8kHz with 8 kHz frame sync:1st fram e 2nd fram e1st fram e1st fram e 1st fram e2nd fram e2nd fram e 2nd fram ePCM CLK16 KHz FSCPCM inPCM outChannel 0Channel 0Channel 1Channel 1 Channel 0 Channel 11st fram e 1st fram e1st fram e 1st fram eAP_DATA_FORMAT_LINEAR_8kHz with 16 kHz frame sync:1st fram e 1st fram eChannel 0 Channel 11st fram e 1st fram eFigure 18 PCM bus with linear PCM, 16kHz sample ratePCM CLK16 KHz FSCPCM inPCM outChannel 0Channel 0Channel 1Channel 1Channel 0Channel 0Channel 1Channel 11st frame 2nd frame1st frame1st frame 1st frame2nd frame2nd frame 2nd frameAP_DATA_FORMAT_LINEAR_16kHz with 16 kHz frame sync:

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 27 August 19, 2011 v1.2.1Figure 19 PCM bus with G.711 – A-law/u-law, 8 kHz sample ratePCM CLK8 KHz FSCPCM inPCM outChannel 0Channel 0Channel 1Channel 1Channel 0Channel 0Channel 1Channel 1AP_DATA_FORMAT_G711A / AP_DATA_FORMAT_G711U with 8 kHz frame sync:1st frame1st frame2nd frame2nd frame1st frame1st frame2nd frame2nd framePCM CLK16 KHz FSCPCM inPCM outChannel 0Channel 0Channel 1Channel 1 Channel 0 Channel 1AP_DATA_FORMAT_G711A / AP_DATA_FORMAT_G711U with 16 kHz frame sync:1st frame1st frame1st frame1st frame 1st frame 1st frameChannel 0 Channel 11st frame 1st frameFigure 20 PCM bus with compressed wideband using A-law/ u-law, G722 used on air interface.PCM CLK16 KHz FSCPCM inPCM outChannel 0Channel 0Channel 1Channel 1Channel 0Channel 0Channel 1Channel 1AP_DATA_FORMAT_CWB_ALAW / AP_DATA_FORMAT_CWB_ULAW with 16 kHz frame sync (G.722 used on air):1st frame1st frame1st frame1st frame2nd frame2nd frame2nd frame2nd framePCM CLK8 KHz FSCPCM inPCM outChannel 0Channel 0Channel 1Channel 1Channel 0Channel 0Channel 1Channel 1Channel 0Channel 0Channel 1Channel 1Channel 0Channel 0Channel 1Channel 1AP_DATA_FORMAT_CWB_ALAW / AP_DATA_FORMAT_CWB_ULAW with 8 kHz frame sync (G.722 used on air):1st frame1st frame2nd frame2nd frame1st frame1st frame2nd frame2nd frame3rd frame4th frame 3rd frame4th frame4th frame 3rd frame4th frame3rd frame

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 28 August 19, 2011 v1.2.1Figure 21 PCM bus with compressed wideband using A-law/ ?-law, G726 used on air interface.PCM CLK16 KHz FSCPCM inPCM outChannel 0Channel 0Channel 1Channel 1Channel 0Channel 0Channel 1Channel 1AP_DATA_FORMAT_CWB_ALAW / AP_DATA_FORMAT_CWB_ULAW with 16 kHz frame sync (G.726 on air):1st frame1st frame1st frame1st framePCM CLK8 KHz FSCPCM inPCM outChannel 0Channel 0Channel 1Channel 1Channel 0Channel 0Channel 1Channel 1Channel 0Channel 0Channel 1Channel 1Channel 0Channel 0Channel 1Channel 1AP_DATA_FORMAT_CWB_ALAW / AP_DATA_FORMAT_CWB_ULAW with 8 kHz frame sync (G.726 on air):1st frame1st frame2nd frame2nd frame1st frame1st frame2nd frame2nd frame2nd frame2nd frame2nd frame2nd frame1st frame1st frame1st frame1st frame1st frame1st frame1st frame1st frame

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 30 August 19, 2011 v1.2.16.0 Specifications6.1 ABSOLUTE MAXIMUM RATINGSNote 1: Absolute maximum ratings are those values that may be applied for maximum 50 hours. Beyond these values, damage to the device may occur.Table 7: Absolute Maximum Ratings (Note 1)Description Condition Min Max UnitMaximum supply voltages:VBAT 5.5 VVBATT, VCCRF, VDDPA 3.6 VVDDIO 2 VMaximum voltage on pins:PON 5.5 VPort pins 2 VLED4, LED3 3.6 VESD voltageall pins human body model 2000 Vmachine model 100 VTable 8: Operating ConditionsDescription Condition Min TYP Max Unit Supply voltage:VBAT 2.1 5.5 VVBATT, VCCRF, VDDPA 2.1 3.45 VVDD The module provides an output voltage in this range1.8 VVDDIO 1.65 1.65 1.98 V Voltage on pins:PON pin 2.1 5.5 VP2[0]/LED4, P2[1]/LED3 3.45 VAll other pins 2 VMaximum Currents through pinsCHARGE pin Series resistor R>(Vcharger-3)/10mA10 mACLASSD pins 500 mAVREFp 1mA

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 31 August 19, 2011 v1.2.16.2 DIGITAL INPUT LEVELS6.3 DIGITAL OUTPUT LEVELS6.4 LOUDSPEAKER LOAD CIRCUITSTable 9: DIGITAL INPUT LEVELS Description Condition Min Max UnitsLogic 0 input levelall digital pads, except PON, CHARGE VDD=1.8V 0.3 x VDD VPON 0.9 VCHARGE 0.9 VRSTn 0.2 x VDD VLogic 1 input levelall digital pads, except PON, CHARGE VDD = 1.8 V 0.7 x VDD V PON 1.5 VCHARGE 1.5 VRSTn 0.8xVDD VTable 10: Digital Output LevelsDescriptions Conditions Min Max UnitsLogic 0 output level(For drive capability see pin description)Iout = 2,4,8 mAVDD = 1.8 V0.2 x VDD VLogic 1 output level Iout = 2,4,8 mAVDD = 1.8 V0.8 x VDD VTable 11: LSRp/LSRn load circuitsPARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNITSCp1_Rl1_inf Load capacitance see Figure 22, RL1 = 30 pFCp1_Rl1_1k Load capacitance see Figure 22, RL1 k100 pFRl1 Load resistance 28 Cp2 Parallel load capacitancesee Figure 23 30 pFCs2 Serial load capacitance 30 FRl2 Load resistance 600 Figure 22 Load circuit A Dynamic loudspeakerRL1 Cp1LSRpLSRnFigure 23 Load circuit B Piezo loudspeakerCs2LSRpLSRnRL2Cp2

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 32 August 19, 2011 v1.2.1Table 12: PAOUTp, PAOUTn external componentsPARAMETER DESCRIPTION CONDITIONS MIN TYP MAX UNITSC_VDDPA Decoupling capacitor on VDDPARequired when Class-D is used and guaranteed life time.(see Figure 24)1FCs_PAOUT Snubber capacitor (to reduce ringing at PAOUTp/n)Required when Class-D is used to prevent EMI and guaranteed life time. (see Figure 24)1nFRs_PAOUT Snubber resistor (to reduce ringing at PAOUTp/n)Required when Class-D is used to prevent EMI and guaranteed life time. (see Figure 24)1Figure 24 Class-D external componentsPAOUTpPAOUTnVDDPAVSS/GNDMay 10, 2010C_VDDPACs_PAOUTRs_PAOUTCs_PAOUTRs_PAOUT

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 33 August 19, 2011 v1.2.16.5 GENERAL SPECIFICATIONSNote 2: The resulting range is very dependent of the mechanical design. SiTel is not responsible for this design and as such SiTel is not responsible for the resulting range performance of the final product.6.6 BASEBAND SPECIFICATIONS6.7 RADIO PART (RF) SPECIFICATIONSTable 13: SC14CVMDECT moduleItem Condition Value UnitDimension l x w x h 25.0 x 29.0 x 2.9 mmWeight 4.5 gTemperature Range -20 to +60 °CFrequency range According to DECT standard 1870 to 1930 MHzAntenna Range According to DECT standard; (Note 2)- typical outdoor 350 m- typical indoor 75 mStandard Compliancy ETS 300 444 (DECT GAP), former TBR2214FCC part 15Power supply 2 or 3 cell NiCd/NiMHNote for 1 Li-Ion battery an external LDO is required.2.10 to 3.45V VMaximum PCB warpage For entire reflow range 0.1 mmTable 14: Baseband specificationsItem Specification Min Typ Max UnitSerial Interface baud rate UART; Interface for external microprocessor or PC115.2 kBitsFlash Download baud rate Via UART 115.2 kBitsFlash data space Module Flash 4kByteEEPROM data space Module EEPROM 0.4 kByteAnalog front-end/Audio PP/FP Application: Interface for Microphone, Earpiece, HeadsetPower consumption(charge)FP Application (3.3V):- stand by mode 55 60 mA- talk mode 65 70 mAPP Application (3.3V):- stand by mode 4,5 6mA- talk mode 30 40 mATable 15: Radio part (RF) Item Conditions Min Typ Max UnitReceive sensitivity @ BER = 0.001 -93 -92 -89 dBmReceive IIP3 -20 dBm

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 34 August 19, 2011 v1.2.16.8 FP POWER SUPPLYTransmit Power (NTP) DECT: 200 mW 20 23 25.5 dBmDECT6.0: 115 mW (max peak) 18.5 21 24 dBmTDMA (time division multiple access)6xRx + 6xTx time slots per carrierData rate 1.152 Mbits/sModulation depth DECT GFSK bandwidth = 20 dB < 1,728 MHzAntenna diversity Two built-in antenna’sStandard Compliancy ETS 301 406 (former TBR6)Table 15: Radio part (RF) Item Conditions Min Typ Max UnitTable 16: Requirements for linear supply regulator Parameter Description Condition Min Typ Max UnitVCCRF Voltage at VCCRF Unloaded VBLoaded VB-V1-V2-V32.1 3V 3.45 VV1Settling time I = 50 mA 20 mVV2Receive period I = 130 mA 100 mVV2Transmit period I = 400 mA 200 mVV3Drop during transmit 25 mVAdditional ripple (DC/DC) none none none mVFigure 25 FP power supplyB

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 35 August 19, 2011 v1.2.17.0 Design guidelinesThis section describes the software and hardware considerations taken into account when designing the target application. The SC14CVMDECT can be used standalone or next to an MCU that controls the module. In case the module is used standalone the application will be stored in its on-board Flash. In total 324kBytes of Flash are available for this.Applications can be written with the Athena software development environment (see [4]). 7.1 APPLICATION SOFTWARE FOR PP In a PP application the following software tasks must be handled by the MCU or within the module itself:• UART communication (external microprocessor only)• PP MMI• Display interface (optional)• Keyboard interface (optional)• Battery Charge interface (optional)• Audio handling• Tone / Melodies handlingFor control commands see document reference [1].UART communicationThe UART communication is the main control interface of the SC14CVMDECT.PP MMIThe MMI state machine must handle the call setup and call termination on the PP. Display InterfaceThe MCU / PP handles the display interface including the display driver.Keyboard InterfaceThe MCU/ PP handles the keyboard interface including the keyboard driver.Battery Charge handlingSC14CVMDECT V3 supports no battery management. This must be done by and external charge circuit on combination with the external MCU. The Application Software must handle the MMI part such as battery status for the user and the PP battery current consumption states.Audio handlingThe Application Software state machine must control when to open and close the audio. The headset plug-in detection must handled by the host, and a status is send to the PP MMI from the PP. The PP MMI must handle the volume control.Headset detection boundaries can be adjusted in EEPROM. When headset indication is received from the PP Headset detection logic (future release), the Application Software can decide if audio should be switched to the headset and sends a request to the SC14CVMDECT.The PP audio handling basically consists of 4 audio states (see Figure 9):1. Idle (Alert) State2. Earpiece State3. Handsfree State (Speakerphone)4. Headset StateShifting between states is done through the API.Please refer to the PP application layout for pin connections.Tone handlingThe Application Software state machine must control when to play tones and the volume setting. Custom melodies can be defined in the EEPROM.7.2 APPLICATION SOFTWARE FOR FP In an FP application the following software tasks must be handled by the MCU or within the module itself:• UART communication (external microprocessor only)•FP MMI• Display interface (optional)• Keyboard interface (optional)• Audio handling• Tone / Melodies handlingFor control commands see document reference [1].UART CommunicationThe UART communication forms the basic of the FP operation because via this interface the SC14CVMDECT is controlled.PP MMIThe MMI state machine must handle the call setup and call termination on the FP.Display InterfaceThe MCU/ FP handles the display interface including the display driver.Keyboard InterfaceThe MCU/ FP handles the keyboard interface including the keyboard driver.Audio HandlingThe Application Software state machine must control when to open and close the audio. The headset plug-in detection is handled by the FP, and a status is send to the FP MMI from the FP. The FP MMI must handle the

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 36 August 19, 2011 v1.2.1volume control.Headset detection boundaries can be adjusted in EEPROM. When headset indication is received from the FP headset detection logic (future release), the Application Software can decide if audio should be switched to headset and sends a request to the FP.Tone HandlingThe Application Software state machine must control when to play tones and the volume setting. Custom melodies can be defined in EEPROM.7.3 HARDWARE DESIGN GUIDELINESWithin this section general design guidelines for SC14CVMDECT FP and PP applications are given.7.3.1 Circuit design GuidelinesFor a reference schematic refer to the SC14CVMDECT reference kit. With the reference kit package a non-cost optimized reference design is presented. For a FP hardware design the following hardware parts will be needed besides the SC14CVMDECT:• Supply voltage• Battery charge• LED and buttons• SpeakerphoneFor a PP hardware design the following hardware parts will be needed besides the SC14CVMDECT:• Power• Battery Charger• Audio:• Microphone• Earpiece• Speaker• Headset7.3.2 PCB Design Guidelines• Because of the presence of the digital radio frequency burst with 100 Hz time division periods (TDD noise), supply ripple and RF radiation, special attention is needed for the power supply and ground PCB layout.• Power supply considerationsBoth high and low frequency bypassing of the supply line connections should be provided and placed as close as possible to the SC14CVMDECT. In order to get the best overall performance for both FP and PP applications, a number of considerations for the PCB has to be taken into account.• The width of the power amplifier supply line is rec-ommended to be between 0.8 and 1.2 mm due to high current peaks during RF bursts.• Make angle breaks on long supply lines to avoid resonance frequencies in respect to DECT fre-quencies. Maximum 8 cm before an angle break is recommended.• Supply lines should be placed as far as possible away from sensitive audio circuits. If it is neces-sary to cross supply lines and audio lines, it should be done with right angles between supply and audio lines/circuits (microphone, ear-speaker, speakerphone, etc.)• Ground plane considerationsIn order to achieve the best audio performance and to avoid the influence of power supply noise, RF radiation, TDD noise and other noise sources, it is important that the audio circuits on both FP and PP applications boards are connected to the GND_ANA pins (analog ground) on the SC14CVMDECT with separate nets in the layout.It is advised to provide the following audio circuits with separate ground nets connected to the GND_ANA pins:• Microphone(s)• Headset microphone and speaker• Speakerphone (signal grounds)Depending on the layout it may also be necessary to bypass a number of the audio signals listed above to avoid humming, noise from RF radiation and TDD noise with. It is also important to choose a microphone of appropriate quality with a high RF immunity (with built-in capacitor).• ESD performanceBesides TDD noise, the ESD performance is important for the end-application. In order to achieve a high ESD performance supply lines should be placed with a large distance from charging terminals, display, headset connector and other electrical terminals with direct contact to the ESD source.On a two-layer PCB application it is important to keep a simulated one layer ground. With a stable ground ESD and TDD noise performance will always improve.

SC14CVMDECT Cordless Voice Module© 2011 SiTel Semiconductor B.V. Company Confidential 37 August 19, 2011 v1.2.18.0 Audio Level Adjustment8.1 PP AUDIO LEVELFor adjusting the audio levels in the PP (SLR/TOLR) and (RLR/OLR) the related eeprom parameters can be adjusted during production.8.2 FP AUDIO LEVEL)For adjusting the audio level in the FP (SLR/TOLR) and (RLR/ROLR) he related eeprom parameters can be adjusted during production..

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Dialog Semiconductor SC14A DECT Cordless Voice Module User Manual SC14CVMDECTv1 2ls

Dialog Semiconductor BV DECT Cordless Voice Module SC14CVMDECTv1 2ls

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