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A9108
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General Description
A9108 is a high performance and low cost Sub1GHz ISM band system-on-chip (SoC) wireless transceiver. This device integrates high speed pipeline 8051 MCU, 16KBytes In-system programmable flash memory, 2KB SRAM, various powerful functions and excellent performance of Sub1GHz GFSK/FSK transceiver. A9108 has various operating modes, making it highly suited for systems where ultra-low power consumption is required. A9108 has a 8bit ADC for RSSI and 4 channel 12bit ADC for general purpose. Three kinds of serial communication port (SPI, I2C and UART) can interact with other device(s).

A9108 is one of AMICCOM sub1GHz family. It integrates AMICCOM sub1GHz transceiver well and offers a low cost solution with advanced radio features. Therefore, A9108 is very suitable for long LOS (line-of-sight) applications without the need to add an external LNA or PA.

The on-chip data rate divider supports programmable on-air data rates from 2K to 250Kbps to satisfy different system requirements. For a battery powered system, A9108 supports fast PLL settling time, X’tal settling time and on-chip Regulator settling time to reduce average power consumption.
 Small Package size (QFN5X5, 40 pins).
 High performance pipeline complicated 8051
 Operation clock: 1, 1/2, 1/4, 1/8, 1/16, 1/32 of crystal oscillator.
 16KB Flash memory, 2KB SRAM
 UART, I2C, SPI serial communication
 Three 16/8-bit counter/timers
 Two channel PWM
 Watchdog timer
 Sleep timer
 In-Circuit Debugger
 In-System programming/ In-Application programming
 24 GPIO
 Four channel 12bit SAR ADC
 One channel 8 bit ADC for RSSI and battery detect
 Programmable threshold of carrier detect.
 Frequency Range: 295 MHz. ~ 320 MHz., 425 MHz.~ 465 MHz., 470 MHz.~ 510 MHz., 855 MHz.~ 900 MHz., and 900 MHz. ~ 950 MHz.
 Programmable data rate from 2Kbps to 250Kbps.
 RX Current consumption (AGC Off) 915MHz: 16.7mA.
 TX Current consumption 915MHz: 100mA @ 17.5dBm.
 PM3 current without sleep timer (0.8uA).
 On chip regulator, support input voltage 2.1 ~ 3.6 V.
 High RX sensitivity 915MHz.
 -107dBm at 50Kbps on-air data rate.
 -104dBm at 100Kbps on-air data rate.
 -99dBm at 150Kbps on-air data rate.
 -97dBm at 250Kbps on-air data rate.
 Support low cost crystal (12.8 MHz /16 MHz).
 Support RTC clock 32.768KHz
 Fast PLL settling time (35 us).
 9-bits Digital RSSI and Auto RSSI measurement
 Auto Calibrations.
 Auto FCS (CRC) and Filtering.
 On-chip full range VCO and Fractional-N PLL synthesizer.
 On-chip low power RC oscillator for WOR (Wake on RX) function.
 AFC (Auto Frequency Compensation) for frequency drift due to X’tal aging.
 Separated 64 bytes FIFO for RX and TX.
Wireless sensor networks
Industrial monitoring and control
Wireless alarm and security system
Wireless ISM band data communication
Remote control
Home and building automation