AK4558 Datasheet | Asahi Kasei Microdevices

Description The AK4558 is a low voltage 32bit 216k Hz CODEC for high performance battery powered digital audio subsystems. An internal circuit includes newly developed 32-bit Digital Filter achieving short group delay and high quality sound. In addition, “OSR-Doubler” technology is newly adopted, making the AK4558 capable of supporting wide range signals and achieving low out-of-band noise while realizing low power consumption. The AK4558 is ideal for a wide range of applications that demands high sound quality including Electronic musical instruments and Audio Interfaces. The analog inputs and outputs are single-ended to minimize pin count and external filtering requirements. The AK4558 is housed in a very small 28-pin QFN. It is ideal for space-sensitive applications. 2. Features  Single-ended ADC - Dynamic Range, S/N: 108d B@AVDD=3.3V - S/(N+D): 92d B@AVDD=3.3V - Selectable HPF for DC-offset cancel (fc = 1Hz @ fs=48k Hz) - 4-types Digital Filter for High Sound Quality  Single-ended DAC - Dynamic Range, S/N: 108d B@AVDD=3.3V - S/(N+D): 100d B@AVDD=3.3V - Digital de-emphasis for 32k Hz, 44.1k Hz and 48k Hz sampling - 5-types Digital Filter for High Sound Quality - Channel Independent Digital Attenuator (256 levels, 0.5d B steps)  Audio I/F format: MSB First, 2’s plement - ADC: 24/32bit MSB justified , 24/32bit I2S patible or TDM - DAC: 24/32bit MSB justified, 16/20/24/32bit LSB justified, 24/32bit I2S patible or TDM  Input/Output Voltage: ADC = 2.64Vpp @ AVDD=3.3V DAC = 2.51Vpp @ AVDD=3.3V  Master/Slave mode  P I/F: I2C Bus  Sampling Rate: (1) PLL Mode - PLL Slave Mode (LRCK pin): fs = 8k Hz  216k Hz - PLL Slave Mode (BICK pin): fs = 8k Hz  216k Hz - PLL Master Mode: 8k Hz, 11.025k Hz, 12k Hz, 16k Hz, 22.05k Hz, 24k Hz, 32k Hz, 44.1k Hz, 48k Hz, 54k Hz, 88.2k Hz, 96k Hz, 128k Hz, 176.4k Hz, 192k Hz (2) External Clock Mode - Normal Speed: 8k Hz to 54k Hz (256fs or 512fs) 8k Hz to 48k Hz (384fs or 768fs) - Double Speed: 54k Hz to 108k Hz (256fs) 48k Hz to 96k...