216kHz 8ch Asynchronous Sample Rate Converter with Internal Oscillator

  • Inquiry
  • Digi-Key
  • Evaluation Board Manual
  • Data Sheet


The AK4128A is an 8ch digital sample rate converter (SRC). The input sample rate ranges from 8kHz to 216kHz. The output sample rate is from 8kHz to 216kHz. The AK4128A has an internal Oscillator and does not need any external master clocks. It contributes simplifying a system configuration. The AK4128A supports master mode and TDM data interface, enabling simultaneous input of asynchronous stereo data. The AK4128A is suitable for the application interfacing to different sample rates such as multi-channel high-end Car Audio Systems and DVD recorders.

Key Features

• 8 channels input/output

• Asynchronous Sample Rate Converter

• Input Sample Rate Range (FSI): 8kHz to 216kHz

• Output Sample Rate Range (FSO): 8kHz to 216kHz

• Input to Output Sample Rate Ratio: 1/6 to 6

• THD+N: -130dB

• Dynamic Range: 140dB (A-weighted)

• I/F format: MSB justified, LSB justified and I2S compatible and TDM

• Oscillator for Internal Operation Clock

• Clock for Master mode: 128/256/384/512/768fso

• On-chip X’tal oscillator

• Digital De-emphasis Filter (32kHz, 44.1kHz and 48kHz)

• Soft Mute Function

• SRC Bypass mode (Master/Slave)

• μP Interface: I²C bus

• Power Supply: AVDD, DVDD1-4: 3.0 to 3.6V (typ. 3.3V)

• Ta = -20 to 85°C (AK4128AEQ), -40 to 85°C (AK4128AVQ)

• Package: 64LQFP

>> Read more

Block Diagram

Block Diagram

Page Top