Wistron NeWeb SWA19 Wireless Module User Manual SWA19 use guide v0 8 OK

Wistron NeWeb Corporation Wireless Module SWA19 use guide v0 8 OK

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AVNERA PROPRIETARY & CONFIDENTIAL | PROVIDED UNDER NDA

General Description

The SWA19 module represents a new level of

system integration offering customers fast time

to market with a digital wireless receiver ideal

for wireless headphone applications. The

SWA19 Receiver module is optimized for low-

cost, high-quality and ease-of-use.

The module incorporates Avnera’s proprietary

wireless audio protocol, designed from the

ground up specifically for audio. It features low

fixed latency, uncompressed CD quality stereo

audio, superior interference immunity and

industry leading coexistence with WiFi – even

at close proximity to a WiFi device.

The SWA19 Receiver module integrates all

features necessary to complete a wireless

Headphone device, including AV6202

Wireless Audio Chip, diversity chip antennas,

flash memory, and all passive components.

The module measures just 30 x 30 x 3.5 mm

and is castellated for direct surface mount to a

PCB.

The SWA19 receiver module may be paired

with the SWA13 Transmitter device.

The module can be certified to worldwide

standards.

Applications

 Premium Wireless Headphone

Ordering Options

SWA19

Features

 I2S Digital Output interface with >94dB end-

to-end digital audio path

 Analog Headphone Driver

 Analog microphone input

 Direct connection to Li-Ion battery

 Integrated battery charger

 2.4 GHz ISM band, continuous dynamic

channel selection

 Auto-search/synch and dynamic channel

selection

 Low and fixed latency

 24 pin castellated module

 Over-the-air firmware update capability

 Customizable firmware for simple, low-cost,

wireless headphone implementations

 General purpose over-the-air (OTA) serial

interface:

 11 kbps, bi-directional, full duplex

SWA19

Module Datasheet

Headphone / Headset Wireless Receiver System, based on the AV6202 IC

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 2 AVNERA PROPRIETARY & CONFIDENTIAL

1 Table of Contents

.............................................................................................................................................. 1

General Description ............................................................................................................ 1

Applications ........................................................................................................................ 1

Ordering Options ................................................................................................................ 1

Features ............................................................................................................................... 1

1Table of Contents ......................................................................................................... 2

2Lists of Figures and Tables ......................................................................................... 3

3SWA19 Functional ........................................................................................................ 4

3.1SWA19 Module Connections ............................................................................................................ 5

4SWA19 Pin Def. ............................................................................................................. 6

5SWA19 Mechanical Dimensions(unit :mm) ................................................................ 7

.............................................................................................................................................. 7

.............................................................................................................................................. 8

6Electrical Specifications .............................................................................................. 9

6.1Absolute Maximum Ratings ............................................................................................................. 9

6.2Recommended Operating Range ..................................................................................................... 9

6.3Electrical Characteristics ............................................................................................................... 10

6.4I2S Communication Interface Timing ............................................................................................. 11

6.5I2C Master/Slave Communication Interface Timing (S_SCL, S_SDA) ....................................... 12

7FCC and Industry Canada certification information ................................................ 13

8Ordering Information ................................................................................................. 13

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 3 AVNERA PROPRIETARY & CONFIDENTIAL

2 Lists of Figures and Tables

Table 1: SWA19 Connector Information ............................................................................................................. 6

Table 2; SWA19 RF Transceiver Characteristics .............................................................................................. 10

Table 3; SWA19 Audio Characteristics ............................................................................................................. 10

Table 4; SWA19 Audio Latency Characteristics ............................................................................................... 10

Table 5; SWA19 Current Characteristics .......................................................................................................... 10

Table 6; SWA19 I2S Timing .............................................................................................................................. 11

Table 7; Characteristics of the S_SDA and S_SCL I/Os .................................................................................. 12

Table 8: SWA19 Module Ordering Information ................................................................................................. 13



SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 4 AVNERA PROPRIETARY & CONFIDENTIAL

3 SWA19 Functional

The SWA19 module is a digital output receiver

module. There is an I2S port for digital audio

output that can be configured to be a master or a

slave. In addition, MCLK can be generated from

the module, or input to the module as required by

the system application.

The highly integrated nature of the AV6202

transceiver IC results in few external components

being required for the SWA19 module design. 2

chip antennas offer diversity, and the simple RF

path consists only of the antennas, associated

tuning components, An RF switch and a balun

connected to the AV6202 IC. A 16MHz crystal

generates the AV6202 system clock signal used

as the basis for all RF and digital audio signals. In

addition, a 2Mb flash memory stores the factory

based firmware, as well as firmware upgrade

images and configuration parameters.

The module firmware enables upgrades to be

performed by the USB interface or over-the-air.

The module can be controlled from an external

host device via the SPI interface. The I2C master

port allows the module to control other system

audio devices such as a DAC / amplifier system

without having to add another MCU to the product

design. 15 GPIOs are supported with the SWA19

module including I2C, SPI and I2S signals. This

large number of GPIOs can be leveraged to

implement low cost wireless audio products as

outlined below.

The stereo 44.4 kSps over the air sample rate

optimizes audio quality and WiFi co-existence

performance.

Typical Headphone Implementation

An example of a simple wireless headphone that

incorporates SWA19 as the wireless receiver and

uses MCU for user interface and Codec control is

shown in Fig. 2.

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 5 AVNERA PROPRIETARY & CONFIDENTIAL

3.1 SWA19 Module Connections

Signal Type Description

VDC IN This module pin may be connected to VDC or VIN – depending on the

customer requirement (to be determined before schematic finalization). If the

battery charger function is to be used, VDC must be connected to 5V DC. If a

direct connection to a battery or 3.3V supply is intended then VDC will connect

to the VIN pin of AV6202

VIN Direct battery connection or regulated supply, 3.3V or 3.6Vv

Vbat Battery charger output

TS Battery Temperature sensor input

PWR Power button connection to the module. This feature can be used to wake the

module from a shutdown state. Pull low through an open collector device or

mechanical switch to wake the module.

Reset Active low reset input. Reset the device by driving this pin low from an open

collector/drain device such that it can pull to ground for the active reset state

but, when released, must be allowed to go to a high impedance state. This pin

should not be driven high.

I2S Out Port The I2S output port can be configured as a master or slave. Consequently

BCLK and LRCK can be either inputs or outputs. In addition, MCLK can be

generated by the module on pin 16, or used as an input. Typically, as the

AV6202 IC contains a sample rate converter, MCLK is not required to be

supplied to the module when it is an I2S slave. CMOS 3.3 logic levels are used

for all I2S signals.

SPI Slave Port The SPI slave port is used for external host communication and during module

test

I2C Master Port The I2C master port is used to communicate with external audio devices such

as a sub-woofer amplifier. The SDA and SCL require external pull ups, 2.7 to

3.3kohm.

GPIOs 3.3V CMOS logic level GPIOs available to connect to other devices, or to use

as UI supporting GPIOs for LED and button support. All supported GPIOs can

be configured as inputs or outputs.

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 6 AVNERA PROPRIETARY & CONFIDENTIAL

4 SWA19 Pin Def.

NoPinNameI/OAV6202PinPinDescription

11NC/ANT0I/O  NCorConductiveAnt0RFOutput

2GND‐  GND

33ADOUT/GPIO16O/IGPIO16 6I2SstereooutorGPIO

44NC/GPIO1I/OGPIO14NCorGPIO

55S_SSB/GPIO2I/OGPIO23SPIslaveportorGPIO;HOSTControlinterface

66S_SCLK/GPIO3I/OGPIO3 2SPIslaveportorGPIO;HOSTControlinterface

77S_MOSI/GPIO4I/OGPIO4 1SPIslaveportorGPIO;HOSTControlinterface

88S_MISO/GPIO5I/OGPIO556SPIslaveportorGPIO;HOSTControlinterface

99M_MISO/GPIO6I/OGPIO655SPIMASTERportorGPIO

1010M_MOSI/GPIO7I/OGPIO754SPIMASTERportorGPIO

1111M_SCLK/GPIO8I/OGPIO853SPIMASTERportorGPIO

1212M_SSB/GPIO9I/OGPIO952SPIMASTERportorGPIO

1313USB_DPI/OUSBDP45USB2.0positivetransceiverI/O

1414USB_DNI/OUSBDN44USB2.0negativetransceiverI/O

15GND‐  GND

1616MCLK/GPIO17OGPIO1751I2SMCLKorGPIO

1717BCLK/GPIO12I/OGPIO1243I2SBCLKorGPIO

1818WCLK/GPIO13I/OGPIO1342I2SWCLKorGPIO

1919GPIO14/M_SCLI/OGPIO1441Functiondefinedbyfirmwareapplication.

2020GPIO15/M_SDAI/OGPIO1540Functiondefinedbyfirmwareapplication.

2121RESETNIRESETN39Active‐LOWResetinputexpectingopendrain

connection

2222NC/TEMP_SENSOTS38NCORTEMP_SENS:connecttothermistoronthe

Li/Ionbattery

2323NC/~PWRIPWR37Active‐LOWWAKE‐UPinputfromshutdownmode

expectingopen‐drain/collectortypeswitch

2424NC/VBATOVBAT34NCoroutputofthebatterycharger

2525VDC_IN*aIVDC32+5V+/‐10%;onlyneededwhenUSBused*a

2626VIN*aIVIN35Modulemainpowerin3.2‐4.3V*a

27GND‐  GND

2828NC/ANT1I/O  NCorConductiveAnt1RFOutput

*a : When SWA19 not use USB/charger functionality, u only need to supply power to “26VIN” pin which is

3.2~4.3V input range, and float “25VDC_IN” pin.

When SWA19 need USB function, u only need to supply power to “25VDC_IN” pin, and float “26VIN” pin .

Table 1: SWA19 Connector Information

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 7 AVNERA PROPRIETARY & CONFIDENTIAL

5 SWA19 Mechanical Dimensions(unit :mm)

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 8 AVNERA PROPRIETARY & CONFIDENTIAL

Figure 1: SWA19 Mechanical Dimensions

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 9 AVNERA PROPRIETARY & CONFIDENTIAL

6 Electrical Specifications

6.1 Absolute Maximum Ratings

Absolute Maximum Ratings (AMR) are stress ratings only. AMR corresponds to the maximum value that can be applied without leading

to instantaneous or very short-term unrecoverable hard failure (destructive breakdown). Stresses beyond those listed under AMR may

cause permanent damage to the device.

Functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Range” is

not implied. Exposure to absolute-maximum-rated conditions for extended periods may adversely affect device reliability.

Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics at the test

conditions specified.

CONDITION MIN MAX

VDC or VIN Supply Voltage

Input -0.3V 6.0V

Input Voltage Range – Digital

Inputs -0.3V 3.6V

Operating Temperature

-10ºC +70ºC

Storage Temperature -20ºC +80ºC

Static Discharge Voltage1 -10kV +10kV

Notes:

Note 1: ±10kV, 150pF/330ohms discharge per IEC/EN61000-4-2

6.2 Recommended Operating Range

PARAMETER MIN TYP MAX UNIT

+5V Supply pin voltage 4.5 5.0 5.5 V

VIN Voltage range 3.2 3.6 4.3 V

Ambient Temperature (T

) 0 60 ºC

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 10 AVNERA PROPRIETARY & CONFIDENTIAL

6.3 Electrical Characteristics

Test Conditions: TA=+25ºC, VDC=+5.0V

Table 2; SWA19 RF Transceiver Characteristics

PARAMETER CONDITIONS MIN TYP MAX UNIT

RF Frequency Range 2403.35 2477.35 MHz

RX Sensitivity

-88 dBm

Range (NLOS) 15 m

Range (LOS) 50 m

Note 1: Measured with the SWA19 PCB antenna disabled and test RF connector added. Sensitivity is defined as the onset

of 0.2% BLER Clock Error Rate.

Table 3; SWA19 Audio Characteristics

PARAMETER CONDITIONS MIN TYP MAX UNIT

Frequency Response1 Stereo full band FW build 20 20K Hz

Gain Flatness

0dB Input/Output Gain ±0.2 dB

SNR I2S Input/Output 94 dB

THD+N 94 dB

Note 1: 16 bit audio, 44.4KSps over-the-air sample rate firmware build

Note 2: 16 bit audio, 44.4KSps over-the-air sample rate firmware build – 20 KHz frequency response

Table 4; SWA19 Audio Latency Characteristics

PARAMETER CONDITIONS MIN TYP MAX UNIT

44.4KSps OTA Sample Latency Standard Firmware 14 ms

Table 5; SWA19 Current Characteristics

PARAMETER CONDITIONS MIN TYP MAX UNIT

Supply Current

No Audio Linked4 35

Searching

55 mA

No Load, 1 kHz tone, 0 dB

FS 50 mA

Note 4: Specification represents an average current with the I2S clocks running. Peak current is ~ 2x the average.

Note 5: Searching is where the Rx module is not linked but is attempting to find a Tx module to link with. Peak current is ~

80mA.

Note 6:. After the Rx module has not been linked for > 30 seconds it will go to a duty cycling standby state reflected by this

specification. Peak current is ~ 80mA.

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 11 AVNERA PROPRIETARY & CONFIDENTIAL

6.4 I2S Communication Interface Timing

Table 6; SWA19I2S Timing

MIN TYP MAX UNIT NOTES

VL low voltage level -0.3V 0.0V 0.4V V

VH high voltage level 2.4V 3.3V 3.6V V

T clock period 325.5n s 1/3.072MHz

TLo clock low period 0.4T 0.6T

THi clock high period 0.4T 0.6T

TR rise time 50n s Note 1

TF fall time 50n s Note 1

TSu setup time 25n s

THd hold time 25n s

TOd output delay -25n 25n s

bit clocks/word clock 64

I2S protocol is “I2S Justified” as shown below.

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 12 AVNERA PROPRIETARY & CONFIDENTIAL

Note 1: The timing specified for the rise and fall times represents the edge rates on the module itself. The rise

and fall times of the I2S signals are determined by ESD/EMI mitigation components on the modules, as well

as external loading, and will be higher than the specified numbers

6.5 I2C Master/Slave Communication Interface Timing (S_SCL, S_SDA)

The SWA19has both I2C slave and master interfaces available with their respective pins S_SCL and S_SDA.

The interfaces operate in I2C fast-mode and can receive and transmit at up to 400 kbit/s.

Bytes are 8 bits long and are transferred with the most significant bit (MSB) first. Each byte has to be followed

by an acknowledge bit. The SWA19will apply clock-stopping (by holding the clock line S_SCL LOW to force

the master into a wait state) if necessary due to internal high-priority tasks.

The slave/master interface can be used both for writing (e.g. sending commands) or reading (e.g. requesting

status).

The SWA19slave interface responds to the 7-bit slave address 1000000 (0x40) as shown in Figure 1 below.

ELECTRICAL SPECIFICATIONS AND TIMING

Table 7; Characteristics of the S_SDA and S_SCL I/Os

PARAMETER SYMBOL FAST-MODE UNIT

MIN. MAX.

LOW level input voltage VIL 0.3 0.8 V

HIGH level input voltage VIH 2.0 3.6 V

LOW level output voltage (open drain or

open collector) at 1 mA sink current: VOL 0 0.4 V

Output fall time from VIHmin to VILmax with

a bus capacitance from 10 pF to 400 pF tof 0 250 ns

Pulse width of spikes which must be

suppressed by the input filter tSP 0 50 ns

S_SCL clock frequency fSCL 0 400 kHz

LOW period of the S_SCL clock tLOW 1.3 – s

HIGH period of the S_SCL clock tHIGH 0.6 – s

Data hold time tHD;DAT 100 – ns

Data set-up time tSU;DAT 100 – ns

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 13 AVNERA PROPRIETARY & CONFIDENTIAL

7 FCC and Industry Canada certification information

FCC : NKR-SWA19

IC : 4441A-SWA19

8 Ordering Information

Table 8: SWA19 Module Ordering Information

Module Part

Number Option

Code Description

SWA19

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 14 AVNERA PROPRIETARY & CONFIDENTIAL

FCC Statement:

Federal Communication Commission Interference Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to

Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful

interference in a residential installation. This equipment generates, uses and can radiate radio frequency

energy and, if not installed and used in accordance with the instructions, may cause harmful interference to

radio communications. However, there is no guarantee that interference will not occur in a particular

installation. If this equipment does cause harmful interference to radio or television reception, which can be

determined by turning the equipment off and on, the user is encouraged to try to correct the interference by

one of the following measures:

● Reorient or relocate the receiving antenna.

● Increase the separation between the equipment and receiver.

● Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

● Consult the dealer or an experienced radio/TV technician for help.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1)

This device may not cause harmful interference, and (2) this device must accept any interference received,

including interference that may cause undesired operation.

This device and its antenna(s) must not be co-located with any other transmitters except in

accordance with FCC multi-transmitter product procedures.

Refering to the multi-transmitter policy, multiple-transmitter(s) and module(s) can be operated

simultaneously without C2P.

IMPORTANT NOTE:

This module is intended for OEM integrator. The OEM integrator is responsible for the compliance

to all the rules that apply to the product into which this certified RF module is integrated.

Additional testing and certification may be necessary when multiple modules are used.

20cm minimum distance has to be able to be maintained between the antenna and the users for the host this

module is integrated into. Under such configuration, the FCC radiation exposure limits set forth for an

population/uncontrolled environment can be satisfied.

Any changes or modifications not expressly approved by the manufacturer could void the user's authority to

operate this equipment.

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 15 AVNERA PROPRIETARY & CONFIDENTIAL

USERS MANUAL OF THE END PRODUCT:

In the users manual of the end product, the end user has to be informed to keep at least 20cm separation with

the antenna while this end product is installed and operated. The end user has to be informed that the FCC

radio-frequency exposure guidelines for an uncontrolled environment can be satisfied. The end user has to

also be informed that any changes or modifications not expressly approved by the manufacturer could void

the user's authority to operate this equipment. If the size of the end product is smaller than 8x10cm, then

additional FCC part 15.19 statement is required to be available in the users manual: This device complies

with Part 15 of FCC rules. Operation is subject to the following two conditions: (1) this device may not cause

harmful interference and (2) this device must accept any interference received, including interference that

may cause undesired operation.

LABEL OF THE END PRODUCT:

The final end product must be labeled in a visible area with the following " Contains TX FCC ID: NKR-SWA19

". If the size of the end product is larger than 8x10cm, then the following FCC part 15.19 statement has to

also be available on the label: This device complies with Part 15 of FCC rules. Operation is subject to the

following two conditions: (1) this device may not cause harmful interference and (2) this device must accept

any interference received, including interference that may cause undesired operation.

SWA19 Module Datasheet Rev 0.8

CONTENTS SUBJECT TO CHANGE WITHOUT NOTICE 16 AVNERA PROPRIETARY & CONFIDENTIAL

IC Statement:

This device complies with Industry Canada license-exempt RSS standard(s). Operation is subject to the

following two conditions: (1) this device may not cause interference, and (2) this device must accept any

interference, including interference that may cause undesired operation of the device.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio

exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit

pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage

radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

This device and its antenna(s) must not be co-located with any other transmitters except in

accordance with IC multi-transmitter product procedures.

Refering to the multi-transmitter policy, multiple-transmitter(s) and module(s) can be operated

simultaneously without reassessment permissive change.

Cet appareil et son antenne (s) ne doit pas être co-localisés ou fonctionnement en association avec

une autre antenne ou transmetteur.

IMPORTANT NOTE:

IC Radiation Exposure Statement:

This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment.

This equipment should be installed and operated with minimum distance 20cm between the radiator & your

body.

Cet équipement est conforme aux limites d'exposition aux rayonnements IC établies pour un

environnement non contrôlé. Cet équipement doit être installé et utilisé avec un minimum de 20 cm

de distance entre la source de rayonnement et votre corps.

This module is intended for OEM integrator. The OEM integrator is still responsible for the IC compliance

requirement of the end product, which integrates this module.

USERS MANUAL OF THE END PRODUCT:

In the users manual of the end product, the end user has to be informed to keep at least 20cm separation with

the antenna while this end product is installed and operated. The end user has to be informed that the IC

radio-frequency exposure guidelines for an uncontrolled environment can be satisfied. The end user has to

also be informed that any changes or modifications not expressly approved by the manufacturer could void

the user's authority to operate this equipment. Operation is subject to the following two conditions: (1) this

device may not cause harmful interference and (2) this device must accept any interference received,

including interference that may cause undesired operation.

LABEL OF THE END PRODUCT:

The final end product must be labeled in a visible area with the following " Contains TX IC : 4441A-SWA19 ".

Wistron NeWeb SWA19 Wireless Module User Manual SWA19 use guide v0 8 OK

Wistron NeWeb Corporation Wireless Module SWA19 use guide v0 8 OK

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