AK4452 Datasheet | Asahi Kasei Microdevices

Description The AK4452 is a 32-bit 2ch Premium DAC, which achieves industry’s best low distortion characteristics by a newly developed low distortion technology. It corresponds to a 768k Hz PCM input and an 11.2MHz DSD input at maximum, suitable for play backing high resolution audio sources that are being widespread in network audios, USB-DACs and Car Audio Systems. In addition, “OSR-Doubler” technology is newly adopted, making the AK4452 capable of supporting wide range signals and achieving low out-of-band noise while realizing low power consumption. Moreover, the AK4452 has five types of 32-bit digital filters, realizing simple and flexible sound making in wide range of applications. Application: AV Receivers, CD/SACD Players, Network Audios, USB DACs, USB Headphones, Sound Plate/Bars, Car Audios, Automotive External Amplifiers, Measuring Instruments and Control Systems. 2. Features (1) 256x Over sampling (2) Sampling Rate: 8k Hz  768k Hz (3) 32Bit 8x Digital Filter - Ripple: 0.0032d B, Attenuation: 80d B - High Quality Sound Short Delay Option; GD=6.25/fs and GD=5.3/fs - Sharp Roll-Off Filter - Slow Roll-Off Filter - Super Slow Roll Off (4) High Tolerance to Clock Jitter (5) Low Distortion Differential Output (6) DSD data input (7) Daisy Chain (8) Digital De-emphasis for 32, 44.1, 48k Hz sampling (9) Soft Mute (10) Digital Attenuator (255 levels and 0.5d B step) (11) Stereo Mode (12) THD+N: -107d B (13) DR, S/N: 115d B (14) I/F Format: - 24/32bit MSB justified - 16/20/24/32bit - LSB justified - I2S - DSD - TDM (15) 3-wire Serial and I2C μP I/F (16) Master Clock: - 30k Hz ~ 32k Hz: 1152fs - 30k Hz ~ 54k Hz: 512fs or 768fs - 30k Hz ~ 108k Hz: 256fs or 384fs - 108k Hz ~ 216k Hz: 128fs or 192fs ~ 384k Hz:64fs or 128fs ~ 768k Hz:64fs Rev. 0.1 2014/04 -1- (17) Power Supply: - TVDD= 1.7  3.6V - AVDD=3.0  5.5V (18) Digital Input Level: CMOS (19) Package: 32-pin QFN [AK4452] Rev. 0.1 2014/04 -2- [AK4452] 3. Table of Contents 1. General Description...