Index > Product > Wireless Audio Products > A8101
General Description
A8101 is a low cost 2.4GHz ISM voice SoC. Based on Data Rate Register, user can configure on-air data rates up to 2.048Mbps. In analog part, it integrates 16 bits CODEC (with 8KHz, 16KHz and 32KHz sample rate). In the digital part, it integrate high speed pipeline 8051 MCU, 16 KB In-system programmable flash memory, 256Bytes internal SRAM, 512Bytes external SRAM and various powerful functions.

A8101 supports fast PLL settling time for frequency hopping system. For packet handling, A8101 has built-in separated (128 bytes) TX/RX FIFO for data buffering and burst transmission, auto-ack and auto-resend, CRC for error packet filtering, FEC (7,4 hamming code) for 1-bit data correction per code word, 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, data whitening for data encryption / decryption. Those functions are very easy to use while developing a wireless system.
 Package size:QFN6x6(48 pins), QFN5x5(32 pins)
 Frequency band: 2400 ~ 2483.5MHz.
 FSK or GFSK modulation.
 PM mode current (10uA).
 RX current consumption: 27.5mA (AGC on).
 TX current consumption: 160mA (20dBm)
 On chip regulator, supports input voltage 2.2 ~ 3.6V.
 Support high data rate: 2.048M.
 Maximum TX output power: up to 20dBm.
 High RX sensitivity:
 -88dBm at data rate 2.048Mbps.
 Fast PLL settling time (30 us) for frequency hopping system.
 On chip low power RC oscillator for WOR (Wake on RX) function.
 AGC (Auto Gain Control) for wide RSSI dynamic range.
 AFC (Auto Frequency Compensation) for frequency drift due to temperature.
 Support low cost crystal (16.384 MHz).
 Low Battery Detector indication.
 Integrate 8051 compatible MCU.
 16KByte flash, 256Bytes internal data RAM, 512Bytes external data RAM.
 Integrate 16 bit CODEC with sampling rate 8K, 16K and 32KSPS.
 PGA for MIC amplifier.
 DAC volume control.
 250mW speaker driver output.
 Easy to use.
 ONE register setting for new channel frequency.
 CRC Error Packet Filtering.
 Auto-acknowledgement and auto-resend.
 Separated 128Byte TX/RX FIFO.
 8-bits RSSI measurement for clear channel indication.
 Auto Calibrations.
 Auto IF function.
 FEC by (7, 4) Hamming code (1 bit error correction / code word).
 Easy FIFO / Segment FIFO.
 2.4GHz voice baby monitor
 Wireless voice toy
 Wireless microphone system
 2.4GHz Walkie-Talkie
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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