مدار مجتمع (آی سی) آی‌سی صوتی ویژه

Product Attributes

Introduction

The AK4137 is a 2ch digital sample rate converter (SRC). The input sample rate ranges from 8kHz to 768kHz. The output sample rate is from 8kHz to 768kHz. The AK4137 has an internal Oscillator. Therefore it does not need any external master clocks and simplifies a system configuration. The AK4137 is suitable for the application interfacing to different sample rates such as high-end Audio Systems and USB-DACs. It is capable of playing back various audio formats with PCM-DSD data conversion function.

Features

• 2 channels input/output
• Asynchronous Sample Rate Converter
• PCM Input Sample Rate Range (FSI): 8kHz~768kHz Output Sample Rate Range (FSO): 8kHz~768kHz
• Input to Output Sample Rate Ratio: FSO/FSI = 1/6 ~ 24
• DSD Input Sample Rate Range (FSI): 2.8224MHz~12.288MHz Output Sample Rate Range (FSO): 2.8224MHz~12.288MHz
• Input to Output Sample Rate Ratio: FSO/FSI = 1/6 ~ 24
• THD+N: Up to −150dB
• Dynamic Range: 186dB (A-weighted)
• I/F format: MSB justified, LSB justified, I2S compatible and TDM
• PCM/DSD converter
• DoP I/F
• Oscillator for Internal Operation Clock
• Clock for Master mode: 64/128/192/256/384/512/768fso
• On-chip xtal oscillator
• Digital De-emphasis Filter (32kHz, 44.1kHz, 48kHz)
• Soft Mute Function
• SRC Bypass mode (Master/Slave, PCM, DSD)
• uP Interface: I2C bus/SPI 4-wire
• Power Supply DVDD: 3.0~3.6V (internal LDO enabled) DVDD: 1.7~1.9V (internal LDO disabled)
• Operating Temperature: Ta=-40~+105°C
• Package 48-pin LQFP (0.5mm pitch)