Simcom SIM800C GSM/GPRS Module User Manual UDV SIM800C Rev 3

Shanghai Simcom Ltd. GSM/GPRS Module UDV SIM800C Rev 3

UDV-SIM800C User Manual_Rev 3

SIM800C_User Manual_ V1.00
SIM900-DS Document - 2 - Compliance Information FCC Compliance Statement: 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 must accept any interference received, including interference that may cause undesired operation. Product that is a radio transmitter is labeled with FCC ID.FCC Caution (1) Exposure to Radio Frequency Radiation. This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be collocated or operating in conjunction with any other antenna or transmitter. End-users and installers must be provided with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance. (2) Any changes or modifications not expressly approved by the grantee of this device could void the user's authority to operate the equipment. (3) This Transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. (4) Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user authority to operate the equipment. (5) The modules FCC ID is not visible when installed in the host, or (6) If the host is marketed so that end users do not have straight forward commonly used methods for access to remove the module so that the FCC ID of the module is visible; then an additional permanent label referring to the enclosed module: Contains Transmitter Module FCC ID: UDV-SIM800C or Contains FCC ID: UDV-SIM800C must be used. General Notes SIMCom offers this information as a service to its customers, to support application and engineering efforts that use the products designed by SIMCom. The information provided is based upon requirements specifically provided to SIMCom by the customers. SIMCom has not undertaken any independent search for additional relevant information, including any information that may be in the customer’s possession. Furthermore, system validation of this product designed by SIMCom within a larger electronic system remains the responsibility of the customer or the customer’s system integrator. All specifications supplied herein are subject to change. Copyright This document contains proprietary technical information which is the property of Shanghai SIMCom Wireless Solutions Ltd, copying of this document and giving it to others and the using or communication of the contents thereof, are forbidden without express authority. Offenders are liable to the payment of damages. All rights reserved in the event of grant of a patent or the registration of a utility model or design. All specification supplied herein are subject to change without notice at any time. Copyright © Shanghai SIMCom Wireless Solutions Ltd. 2014.
Smart Machine Smart Decision - 3 - 1. SIM800C Description 1.1. Summarize SIM800C designed by SIMCom is a quad band module which supports GSM/GPRS. The baseband circuit is based on MTK and RF circuit is based on RFMD. It works at quad bands------GSM850, EGSM900, DCS1800, and PCS1900. The main IC include MT6261M and RF7198. 1.2. Feature ● Quad-band 850/900/1800/1900MHz ● GPRS multi-slot class 12/10 ● GPRS mobile station class B ● Compliant to GSM phase 2/2+ ● –Class 4 (2 W @ 850/900MHz) ● –Class 1 (1 W @ 1800/1900MHz) ● Dimensions: 17.6*15.7*2.3mm ● Weight: 1.3g ● Control via AT commands (3GPP TS 27.007, 27.005 and SIMComenhanced AT Commands) ● Supply voltage range 3.6 ~ 4.2V ● Low power consumption ● Operation temperature:-30℃~80℃ ● 42 SMT pins including – Analog audio interface – RTC backup – USB interface – Serial interface – Interface to external SIM 3V/1.8V – GPIO – ADC – GSM Antenna pad
Smart Machine Smart Decision - 4 - 1.3. Pin
Smart Machine Smart Decision - 5 - 1.4. Picture Figure 1: Top and Bottom view of SIM800C 1.5. Dimension Figure 2: Dimention
Smart Machine Smart Decision - 6 - 2. Detail Block Diagram Figure 3: Block diagram of SIM800C 3. Electrical and Reliability Characteristics 3.1. Absolute Maximum Ratings The absolute maximum ratings stated in following table are stress ratings under non-operating conditions. Stresses beyond any of these limits will cause permanent damage to SIM800C. Table 1: Absolute maximum ratings Symbol Min Typ Max Unit VBAT - - 4.5 V Current 0 - 2.0 A USB_VBUS - - 12 V II* - 4 16 mA IO* - 4 16 mA *These parameters are for digital interface pins, GPIO, and UART. 3.2. Digital Interface Characteristics Table 2: Digital interface characteristics
Smart Machine Smart Decision - 7 - Symbol Parameter Min Typ Max Unit VIH High-level input current 2.1 - 3.1 V VIL Low-level input current -0.3 - 0.7 V VOH High-level output voltage 2.4 - - V VOL Low-level output voltage - - 0.4 V *Note: These parameters are for digital interface pins, such as keypad, GPIO and UART. 3.3. SIM Card Interface Characteristics Table 3: SIM card interface characteristics Symbol Parameter Min Typ Max Unit IIH High-level input current -1.0 - 1.0 uA IIL Low-level input current -1.0 - 1.0 uA VIH High-level input voltage 1.4 - - V 2.4 - - V VIL Low-level input voltage - - 0.27 V 0.4 V VOH High-level output voltage 1.62 - - V 2.7 - - V VOL Low-level output voltage - - 0.36 V - - 0.4 V 3.4. SIM_VDD Characteristics Table 4: SIM_VDD characteristics Symbol Parameter Min Typ Max Unit VO Output voltage - 3.0 - V - 1.8 - IO Output current - - 10 mA 3.5. VRTC Characteristics Table 5: VRTC characteristics Symbol Description Min Typ Max Unit VRTC-IN VRTC input voltage 1.2 2.8 3.0 V IRTC-IN VRTC input current - 3.0 5.0 uA VRTC-OUT VRTC output voltage - 2.8 - V
Smart Machine Smart Decision - 8 - IRTC-OUT VRTC output current - 2.0 mA 3.6. Current Consumption (VBAT = 4.0V) Table 6: Current consumption Symbol Parameter Conditions Min Typ Max Unit VBAT Voltage 3.4 4.0 4.4 V Power drop PCL=5 350 mV Voltage ripple PCL=5 @ f<200kHz @ f>200kHz 50 2.0 mV mV IVBAT Average currnet Power down mode 130 150 uA Sleep mode (AT+CFUN=1)： ( BS-PA-MFRMS=9 ) ( BS-PA-MFRMS=5) ( BS-PA-MFRMS=2) 0.98 1.12 1.25 mA mA mA Idle mode (AT+CFUN=1)： GSM850 EGSM900 DCS1800 PCS1900 13.8 13.8 13.8 13.8 mA mA mA mA Voice call (PCL=5)： GSM850 EGSM900 Voice call (PCL=0)： DCS1800 PCS1900 197 207 130 140 mA mA mA mA Data mode GPRS (1Rx,4Tx)： GSM850 EGSM900 DCS1800 PCS1900 394 416 271 285 mA mA mA mA Data mode GPRS (3Rx,2Tx)： GSM850 EGSM900 DCS1800 PCS1900 323 330 212 227 mA mA mA mA Data mode GPRS (4Rx,1Tx)： GSM850 EGSM900 DCS1800 PCS1900 213 210 150 162 mA mA mA mA
Smart Machine Smart Decision - 9 - IMAX Peak current During Tx burst 2.0 A 3.7. Electro-Static Discharge SIM800C is an ESD sensitive component, so more attention should be paid to the procedure of handling and packaging. The ESD test results are shown in the following table. Table 7: The ESD characteristics (Temperature: 25℃, Humidity: 45 %) Pin name Contact discharge Air discharge VBAT ±5KV ±12KV GND ±6KV ±12KV UARTX_RXD, UARTX_TXD ±2KV ±8KV Antenna port ±6KV ±12KV SPKP/SPKN/MICP/MICN ±3KV ±6KV PWRKEY ±4KV ±8KV 4. Radio Characteristics 4.1. Module RF Output Power The following table shows the module conducted output power, it is followed by the 3GPP TS 05.05 technical specification requirement. Table 8: SIM800C GSM 900 and GSM 850 conducted RF output power GSM850,EGSM900 PCL Nominal output power (dBm) Tolerance (dB) for conditions Normal Extreme 5 33 ±2 ±2.5 6 31 ±3 ±4 7 29 ±3 ±4 8 27 ±3 ±4 9 25 ±3 ±4 10 23 ±3 ±4 11 21 ±3 ±4 12 19 ±3 ±4 13 17 ±3 ±4 14 15 ±3 ±4 15 13 ±3 ±4
Smart Machine Smart Decision - 10 - 16 11 ±5 ±6 17 9 ±5 ±6 18 7 ±5 ±6 19-31 5 ±5 ±6 Table 9: SIM800C DCS 1800 and PCS 1900 conducted RF output power DCS1800,PCS1900 PCL Nominal output power (dBm) Tolerance (dB) for conditions Normal Extreme 0 30 ±2 ±2.5 1 28 ±3 ±4 2 26 ±3 ±4 3 24 ±3 ±4 4 22 ±3 ±4 5 20 ±3 ±4 6 18 ±3 ±4 7 16 ±3 ±4 8 14 ±3 ±4 9 12 ±4 ±5 10 10 ±4 ±5 11 8 ±4 ±5 12 6 ±4 ±5 13 4 ±4 ±5 14 2 ±5 ±6 15 0 ±5 ±6 For the module’s output power, the following is should be noted: At GSM900 and GSM850 band, the module is a class 4 device, so the module’s output power should not exceed 33dBm, and at the maximum power level, the output power tolerance should not exceed +/-2dB under normal condition and +/-2.5dB under extreme condition. At DCS1800 and PCS1900 band, the module is a class 1 device, so the module’s output power should not exceed 30dBm, and at the maximum power level, the output power tolerance should not exceed +/-2dB under normal condition and +/-2.5dB under extreme condition. 4.2. Module RF Receive Sensitivity The following table shows the module’s conducted receive sensitivity, it is tested under static condition. Table 10: SIM800C conducted RF receive sensitivity
Smart Machine Smart Decision - 11 - Frequency Receive sensitivity（Typical） Receive sensitivity(Max) GSM850,EGSM900 < -109dBm < -107dBm DCS1800,PCS1900 < -109dBm < -107dBm 4.3. Module Operating Frequencies The following table shows the module’s operating frequency range; it is followed by the 3GPP TS 05.05 technical specification requirement. Table 11: SIM800C operating frequencies Frequency Receive Transmit GSM850 869 ～ 894MHz 824 ～ 849MHz EGSM900 925 ～ 960MHz 880 ～ 915MHz DCS1800 1805 ～ 1880MHz 1710 ～ 1785MHz PCS1900 1930 ～ 1990MHz 1850 ～ 1910MHz 5. Antenna Interface SIM800C provides GSM antenna named GSM_ANT, customer could use 50Ω microstrip line or stripline antenna connect to the module. The maximum gain of the Main antenna gain should not exceed 3dBi considering the SAR radio. No antenna gain may be used that would exceed the 2W EIRP power limit in 1900MHz band. It have according to reference trace and matching circuit testing all FCC items,and all items satisfy FCC requirements.Only the reference trace and matching circuit is certified, antenna design must refer to it, any other deviations require testing Class II applications as required by FCC. The certified matching circuit as following: Figure4: GSM antenna matching circuit R101，C101，C102 are the matching circuit, the value should be defined by the antenna design. Normally R101 is 0Ω, C101 and C102 are not mounted.
Smart Machine Smart Decision - 12 - The RF connector is used for conduction test. If the space between RF pin and antenna is not enough, the matching circuit should be designed as in the following figure: Figure5: GSM antenna matching circuit without RF connector Normally R101 is 0Ω, C101 and C102 are not mounted. NC NC 0R
Smart Machine Smart Decision - 13 - 5.1. Dipole Antenna PCB Layout Requirements 5.2. Dipole Antenna Reference Design PCB Mount these devices with brown mark facing up. Units: mm Line width should be designed to provide 50Ωimpedancematchingcharacteristics.
Smart Machine Smart Decision - 14 - LAYER1 - TOP LAYER2 - BOTTOM
Smart Machine Smart Decision - 15 - MATERIAL BUILD-UP
Smart Machine Smart Decision - 16 - 5.3. Dipole Antenna Reference Design Schematic
Smart Machine Smart Decision - 17 - Contact us: Shanghai SIMCom Wireless Solutions Co.,Ltd. Address: Building A, SIM Technology Building, No. 633, Jinzhong Road, Shanghai, P. R. China 200335 Tel: +86 21 3252 3300 Fax: +86 21 3252 2030 URL: www.sim.com/wm

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