Products > Integrated Circuits (ICs) > Audio ICs > AK4137EQ
AK4137EQ 48-LQFP
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Manufacturer :
AKM Semiconductor, Inc
Package/Case :
Product Categories :
IC Chips
RoHs Status:
Lead free/RoHS Compliant

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AK4137EQ Product Details

Specifications: Family: Linear - Audio Special Purpose ; Series: - ; Packaging  : Cut Tape (CT)   ; Function: Sample Rate Converter ; Applications: Digital Audio Interfacing ; Number of Channels: 2 ; Interface: I�C, SPI ; Voltage - Supply: 3 V ~ 3.6 V ; Operating Temperature: -40�C ~ 105�C (TA) ; Specifications: 8kHz ~ 768kHz ; Package / Case: 48-LQFP ; Supplier Device Package: 48-LQFP (7x7) ; Online Catalog: Audio Special Purpose


General Description

 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.  


 2 channels input/output

 Asynchronous Sample Rate Converter


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


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 X’tal 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)

AK4137EQ Pin Diagram
(Picture:Pinout / Diagram)

Technical Parameters

Product Lifecycle Status Active RoHS Compliant
Case/Package 48-LQFP Lead Free Status Lead Free

AK4137EQ Related Products

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As a leading provider of mixed-signal IC's for consumer, automotive, and communications applications,AKM Semiconductor is a wholly owned subsidiary of Asahi Kasei Microdevices (AKM), Tokyo, Japan....
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