Index > Product > Bluetooth® LE/Zigbee > A8105
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General Description
A8105 is a high performance and low cost 2.4GHz FSK/GFSK system-on-chip (SoC) wireless transceiver. With on chip fraction-N synthesizer, it can support the application of data rate from 5Kbps to 2Mbps and frequency hopping system and it can support peripheral mode of Bluetooth Low Energy. It is a Bluetooth smart device. This device integrates high speed pipeline 8051 MCU, 32KBytes In-system programmable flash memory, 256Bytes internal data RAM, 2KBytes external data RAM, various powerful functions and excellent performance of a leading 2.4GHz FSK/GFSK RF transceiver. A8105 has various operating modes, making it highly suited for systems where ultra-low power consumption is required. AES128 engine and CCM are supported.
 Frequency band: 2400 – 2483.5MHz.
 Support FSK and GFSK modulation
 High sensitivity:
 -92dBm at 1Mbps data rate
 Programmable data rate 5K ~ 2Mbps.
 In-System programming/ In-Application programming
 Fast settling time synthesizer for frequency hopping system.
 Support low cost crystal 16 MHz.
 Low cost Bluetooth Low Energy (BLE) application
 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
Low Power
 RX current consumption with MCU in operation mode :19.5mA
 TX current consumption with MCU in operation mode (25mA @ 6dBm).
 PM3 current without Sleep timer (0.8 uA)
 High performance pipeline complicated 8051
 32KB Flash memory with copy protection, 256Bytes internal data RAM, 2KBytes external data RAM
 24/ 28 GPIO(28 I/O only in QFN 6x6 )
 Built-in eight channels 12-bits ADC for general purpose analog input (0V ~ 1.8 V).
 Built-in Low Battery Detector.
 Operation clock: 1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64 of crystal oscillator.
 UART, I2C, SPI serial communication
 Three 16/8-bit counter/timers
 Two Channel PWM
 Watchdog timer
 Sleep timer
 In-Circuit Debugger
 Package size (QFN 5X5, 40 pins/ QFN 6x6 48 pins).
2400 ~ 2483.5 MHz ISM frequency hopping system
Smart remote controller
Home and building automation
Wireless keyboard and mouse
Wireless toy and gaming
Helicopter and airplane radio controller
Bluetooth smart device
Application Note
Reference circuit design (Module)
Reference/LIB code
Evaluation kit (EK)
Development Board (DVP)
ICE tool
Flash/OTP programming tool
Production test tool
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