User's Manual

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SIM800 Document

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SIM800 User Manual

1. SIM800 Description

1.1. Summarize

SIM800 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. CPU clock is based on 26MHz crystal. The main IC includes MT6260D and RF7196.

1.2. Feature

● Quad-Band 850/900/1800/1900MHz

● GPRS multi-slot class 12

● GPRS mobile station class B

● Bluetooth output power class 1

● Bluetooth v3.0 with data rates 3.0Mbps

● Compliant to GSM phase 2/2+

– Class 4 (2 W @ 850/900 MHz)

– Class 1 (1 W @ 1800/1900MHz)

● Dimensions: 24*24*3 mm

● Weight: 3.14 g

● Control via AT commands (3GPP TS 27.007, 27.005 and SIMCom enhanced AT Commands)

● Supply voltage range 3.6~4.2 V

● Low power consumption

● Operation temperature:-30~80℃

● 68 SMT pads include

– Interface to external SIM 3V/1.8V

– Analog audio interface

– RTC backup

– Serial interface

– USB interface

– Keypad interface

– LCD interface

– Antenna pad

– PCM

– GPIO

– ADC

Summary of content (14 pages)

PAGE 1
SIM800 Document SIM800 User Manual 1. SIM800 Description 1.1. Summarize SIM800 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. CPU clock is based on 26MHz crystal. The main IC includes MT6260D and RF7196. 1.2.
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SIM800 Document 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 PCM_CLK RF_SYNC STATUS GND GND GND GND GND RF_ANT GND GND VBAT VBAT VBAT GND ANT_BT NETLIGHT 1.3.
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SIM800 Document 1.4.
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SIM800 Document 1.5.
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SIM800 Document 2. Detail Block Diagram Power supply 32K Crystal Power management unit Radio Frequency RF BT FM RTC Digital Interface Analog Interface GPIOs Audio Analog base band Digital base band UART SIM ADC USB KEY PCM、SPI、SD 26M Crystal Figure 3: Block diagram of SIM800 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.
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SIM800 Document IIH High-level input current 2.1 - 3.1 V IIL Low-level input current -0.3 - 0.7 V VOH High-level input voltage 2.4 - - V VOL Low-level input voltage - - 0.4 V * These parameters are for digital interface pins, such as keypad, GPIO, I2C, UART, LCD, PWMs and DEBUG. 3.3.
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SIM800 Document 3.6. Current Consumption (VBAT = 3.8V) Table 6: Current consumption Symbol Parameter Conditions Value Unit IVRTC VRTC current VBAT disconnects. Backup battery is 3 V 2 uA Power down mode 50 uA Sleep mode BS-PA-MFRMS=9 1.0 BS-PA-MFRMS=5 1.2 BS-PA-MFRMS=2 1.
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SIM800 Document IVBAT-peak Peak current During Tx burst 2 A 3.7. Electro-Static Discharge SIM800 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.
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SIM800 Document 14 15 ±3 ±4 15 13 ±3 ±4 16 11 ±5 ±6 17 9 ±5 ±6 18 7 ±5 ±6 19-31 5 ±5 ±6 Table 9: SIM800 DCS 1800 and PCS 1900 conducted RF output power DCS1800、PCS1900 PCL Nominal output power (dBm) 0 Tolerance (dB) for conditions Normal Extreme 30 ±1 ±1.
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SIM800 Document 4.2. Module RF Receive Sensitivity The following table shows the module’s conducted receive sensitivity, it is tested under static condition. Table 10: SIM800 conducted RF receive sensitivity Frequency Receive sensitivity（Typical） Receive sensitivity(Max) GSM850 -108dBm -106dBm EGSM900 -108dBm -106dBm DCS1800 -108dBm -106dBm PCS1900 -108dBm -106dBm 4.3.
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SIM800 Document GND Module RF Connector GSM Antenna R101 RF_ANT C101 C102 GND Figure1: 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 和 C102 are not SMD. The RF connector is used for conducted 5.2 Bluetooth antenna interface The module provides a Bluetooth antenna interface named BT_ANT.
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SIM800 Document 5.3.1 GSM antenna Model GSM antenna: WT-C&G-28-90 Frequency Range (MHz) 824 ~ 960 1710 ~ 1990 VSWR ≤1.5 (900MHz) ≤2 (1800MHz) Gain (dBi): 3dBi (850MHz); 2dBi(1900MHz) Input Impedance (Ω): 50 Polarization Type: Vertical Connector Type: SMA Figure 6 GSM antenna 5.3.2 Bluetooth antenna 1. 2. 3. 4. 5. 6. 7. 8. Frequency Range: 2.4 GHz ~2.5GHz &5.15 GHz ~5.825 GHz Impedance: 50 Ohms nominal VSWR: ≦1.92 Gain: 2.
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SIM800 Document Federal Communication Commission Interference 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 equipment has been tested and found to comply with the limits for a Class B digital device, pursuant toPart 15 of the FCC Rules.
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SIM800 Document End Product Labeling: This transmitter module is authorized only for use in device where the antenna may be installed such that 20 cm may bemaintained between the antenna and users. The final end product must be labeled in a visible area with the following: “Contains FCC ID:UDV-201314. The grantee's FCC ID can be used only when all FCC compliance requirements are met.