Index > Product > 2.4 GHz Short Range Devices > A8108
Selection Guide
General Description
A8108 is a low cost 2.4GHz ISM SoC. In the RF part, this device integrates both high sensitivity receiver and a programmable high efficiency power amplifier. It also integrates high speed pipeline 8051 MCU, 32KBytes In-system programmable flash memory, 256B internal SRAM, 512B external SRAM, USB 2.0 compatible controller and various powerful functions.
A8108 supports fast PLL settling time for frequency hopping system. For packet handling, A8108 has built-in auto-ack and auto-resend, CRC for error packet filtering, RSSI for clear channel assessment, thermal sensor to monitor relative temperature, WOR (Wake on RX) function to support periodically wake up from sleep mode to RX mode and listen for incoming packets without MCU interaction. A8108 supports AES128 engine and CCM. Those functions are very easy to use while developing a wireless system.
 Package size (QFN5 X5, 32 pins).
 32KByte flash, 256Bytes internal data RAM, 512Bytes external data RAM..
 High performance pipeline complicated 8051
 Operation clock: 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64 of crystal oscillator.
 USB 2.0 compatible controller for Interrupt input/output.
 UART, I2C, SPI serial communication
 Three 16/8-bit counter/timers
 Watchdog timer
 Sleep timer
 In-Circuit Debugger
 In-System programming/ In-Application programming
 14 GPIO
 RX current consumption with MCU in operation mode :18mA
 TX current consumption with MCU in operation mode (22mA @2dBm).
 Frequency band: 2400 – 2483.5MHz.
 FSK and GFSK modulation.
 High sensitivity: -96dBm @ 500Kbps data rate.
 Programmable data rate 2K ~ 500Kbps.
 Fast settling time synthesizer for frequency hopping system.
 Built-in thermal sensor for monitoring relative temperature.
 Built-in one channel 8-bits ADC for external analog voltage (0V ~ 1.2V).
 Built-in eight channels 12-bits ADC for general purpose analog input (0V ~ 1.8 V).
 Built-in Low Battery Detector.
 Support low cost crystal 16 MHz.
 Easy to use.
 Change frequency channel by ONE register setting.
 8-bits Digital RSSI for clear channel indication.
 Auto RSSI measurement.
 Auto WOR (wake up when receive RX packet).
 Auto WOT (wake up to transmit TX packet).
 Auto Calibrations.
 Auto IF function.
 Auto Frequency Compensation.
 Auto CRC Check.
 Auto FEC by (7, 4) Hamming code (1 bit error correction / code word).
 Data Whitening for encryption and decryption.
 Separated 64 bytes RX and TX FIFO.
 2400 ~ 2483.5 MHz ISM frequency hopping system
 Smart remote controller dongle
 Wireless USB dongle
 Wireless keyboard and mouse
 Wireless toy and gaming
Application Note
Reference circuit design (Module)
Reference code
Evaluation kit (EK)
Development Board (DVP)
ICE tool
Flash/OTP programming tool
Production test tool
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