ADI蓝牙汽车免提电话系统解决方案

蓝牙汽车免提电话套件(HFCK)是数字信号处理模块，适用于引擎、风扇或其它噪音源带来的嘈杂的汽车环境。无线蓝牙标准可高度兼容并可轻松将移动电话集成到HFCK中。Blackfin®处理器可负荷高质量声学回声消除器AEC (VDA 类型 1)、噪音减弱、蓝牙协议栈、必要的用户档案及质量最好的语音文本识别功能。

Application Notes

AN-711: AD5227 Evaluation Kit for the 64-Position, Up/Down Control Digital Potentiometer (pdf, 898,361 bytes)

AN-588: AD7416/AD7417/AD7418 Power-On Reset Circuit (pdf, 30,326 bytes)
If a large number of decoupling capacitors are used on the VDD line, re-applying power before VDD has discharged to 0 V can cause the AD7416/AD7417/AD7418 to reset into an unknown. state.

AN-583: Using the SSM2167 Evaluation Board (pdf, 135,337 bytes)
This document explains how the evaluation board is set up and how to use it to evaluate the SSM-2167.

AN-561: AD7416 Connects to the PIC16F84 via Emulated I²C™ Interface (pdf, 75,851 bytes)

AN-131: A Two-Channel VCA Level (Volume) Control Circuit (pdf, 120,972 bytes)

AN-127: An Unbalanced Mute Circuit for Audio Mixing Channels (pdf, 144,963 bytes)

AN-121: High Performance Stereo Routing Switcher (pdf, 144,083 bytes)

AN-712: AD5228 Evaluation Kit for the 32-Position, Push Button, Up/Down Control Digital Potentiometer (pdf, 773,076 bytes)

1 Amp

(1) Audio: Audio Performance Amp
AD8674
AD8672
ADA4004-4

(2)Audio Microphone Pre-Amps
SSM2165
SSM2166
SSM2167

2 Audio CODEC
AD1839A
AD1838A
AD1837A

3 System Processor
ADSP-BF531
ADSP-BF532
ADSP-BF533

4 Amp

(1) Audio: Audio Performance Amp
AD8674
AD8672
ADA4004-4

(2) Audio Power Amplifiers
AD1990
AD1991
AD1992