The AC164125是一个speech playback PICtail plus daughter电路板 用于评估和开发 of speech recording和playback应用using adaptive differential Pulse code modulation (ADPCM). The daughter电路板 设计to 接口with both the PICtail 接口和many PIC16和PIC18 评估电路板s和the PICtail Plus card edge 连接器 used on PIC24和dsPIC 评估电路板s. To get started, an HPC or PIC18 explorer电路板 with a PIC18F87J1x or PIC18F8722微控制器, or an explorer 16 开发电路板 with a PIC24F微控制器is needed. The针座s on the speech Playback PICtail plus daughter电路板 allow insertion in the 开发电路板s in only one orientation. The演示 软件implements a talking thermometer using the TC74 温度传感器 on the HPC explorer电路板, PIC18 explorer电路板 or the TC1047A 温度传感器 on the explorer 16 开发电路板.
- 3V或5V运行
- 电位器用于音量控制
- 四阶低通滤波器
- 功率放大器关断控制
- 板载250K位SPI串行EEPROM 用于声音存储
- 通过板载麦克风单声道输出,或通过耳机立体声输出
音频, 便携式器材
(EN)
