ES8388是一种高性能、低功耗、低成本的音频编解码器。它由2-ch ADC, 2-ch DAC,麦克风放大器,耳机放大器,数字音效,模拟混音和增益功能组成。该芯片使用高阶multi-bit delta-sigma调制技术在数字和模拟之间转换数据。multi-bit delta-sigma调制技术使器件对时钟抖动的灵敏度低,带外噪声低。
ADC
24位,8 kHz至96 kHz采样频率
95db动态范围,95db信噪比,- 85db THD+N
立体声或单声道麦克风接口与麦克风放大器
自动电平控制和噪声门
2对1模拟输入选择
各种模拟输入混合和增益
DAC
24位,8 kHz至96 kHz采样频率
96 dB动态范围,96 dB信噪比,-83 dB THD+N
40mw耳机放大器,无pop噪声
无电容驱动耳机模式
立体声增强
低音和高音
各种模拟输出混合和增益
低功率
1.8V至3.3V运行
7 mW回放;16mw的播放和录音
系统
I2C或SPI uC接口
256Fs, 384Fs, USB 12 MHz或24 MHz
主或从串口
I2S,左对齐,DSP/PCM模式
MID
MP3、 MP4、 PMP
无线音频
数码相机、摄像机
全球定位系统
蓝牙
便携式音频设备
ES8388的引脚和尺寸与WM8988兼容
PIN | NAME | I/O | DESCRIPTION |
1 | MCLK | I | Master clock |
2 | DVDD | Supply | Digital core supply |
3 | PVDD | Supply | Digital IO supply |
4 | DGND | Supply | Digital ground (return path for both DVDD and PVDD) |
5 | SCLK | I/O | Audio data bit clock |
6 | DSDIN | I | DAC audio data |
7 | LRCK | I/O | Audio data left and right clock |
8 | ASDOUT | O | ADC audio data |
9 | NC | No connect | |
10 | VREF | O | Decoupling capacitor |
11 | ROUT1 | O | Right output 1 (line or speaker/headphone) |
12 | LOUT1 | O | Left output 1 (line or speaker/headphone) |
13 | HPGND | Supply | Ground for analog output drivers (LOUT1/2, ROUT1/2) |
14 | ROUT2 | O | Right output 2 (line or speaker/headphone) |
15 | LOUT2 | O | Left output 2 (line or speaker/headphone) |
16 | HPVDD | Supply | Supply for analog output drivers (LOUT1/2, ROUT1/2) |
17 | AVDD | Supply | Analog supply |
18 | AGND | Supply | Analog ground |
19 | ADCVREF | O | Decoupling capacitor |
20 | VMID | O | Decoupling capacitor |
21 | RIN2 | AI | Right channel input 2 |
22 | LIN2 | I | Left channel input 2 |
23 | RIN1 | I | Right channel input 1 |
24 | LIN1 | I | Left channel input 1 |
25 | NC | No connect | |
26 | CE | I | Control select or device address selection |
27 | CDATA | I/O | Control data input or output |
28 | CCLK | I | Control clock input |
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