General Description

The AK5371A is stereo A/D converter with USB I/F. The AK5371A integrates USB serial interface engine, USB transceiver, audio class processing unit, endpoints, and high quality 2 channel AD converter into the chip.

As the AK5371A incorporates PLL, it can support several sampling frequencies, 8kHz, 11.025kHz, 22.05kHz, 44.1kHz, and 48kHz with only one crystal. Moreover, the AKAK5371A integrates volume control, and mute function.

Not only power consumption at normal operation is very low, but also the current at suspend mode is less than 1μA.

Features:

■ USB-IF Certified

■ Incorporates USB Audio Controller

USB Serial Interface Engine

Audio Class Encoder/Decoder

2 Endpoints (FIFO)

USB transceiver

■ 16 bit A/D Converter

2 channels

Mute/Volume Control

A/D S/N: 84dBA (44.1kHz, Gain = 0dB)

■ Low Power Dissipation

Normal Operation: 26mA

Suspend Mode: < 1uA

■ Programmable Gain Amplifier (IPGA)

+24dB to –31dB @1dB Step

■ 20dB Pre-amplifier

■ On-chip PLL

5 Sampling Frequencies support

8kHz, 11.025kHz

22.05kHz, 44.1kHz, 48kHz

■ EEPROM I/F can customize Device Descriptor, and String Descriptor

■ Single Power Supply, Low Power +3.3±0.3 Volts

■ Package

48pin LQFP

AK5371A属于集成电路（IC） > ADC/DAC - 特殊用途。旭化成微电子株式会社制造生产的AK5371AADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。