Datasheet > AK4558EN

AK4558EN

更新时间： 2024-11-26 01:22:35

品牌	Logo	应用领域
AKM		/
页数	文件大小	规格书
94页	2366K
描述
108dB 216kHz 32Bit CODEC with PLL

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AK4558EN 数据手册

[AK4558]

AK4558

108dB 216kHz 32Bit  CODEC with PLL

1. General Description

The AK4558 is a low voltage 32bit 216kHz 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: 108dB@AVDD=3.3V

- S/(N+D):

92dB@AVDD=3.3V

- Selectable HPF for DC-offset cancel (fc = 1Hz @ fs=48kHz)

- 4-types Digital Filter for High Sound Quality

 Single-ended DAC

- Dynamic Range, S/N: 108dB@AVDD=3.3V

- S/(N+D): 100dB@AVDD=3.3V

- Digital de-emphasis for 32kHz, 44.1kHz and 48kHz sampling

- 5-types Digital Filter for High Sound Quality

- Channel Independent Digital Attenuator (256 levels, 0.5dB steps)

 Audio I/F format: MSB First, 2’s Complement

- ADC: 24/32bit MSB justified , 24/32bit I²S compatible or TDM

- DAC: 24/32bit MSB justified, 16/20/24/32bit LSB justified,

24/32bit I²S compatible 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 = 8kHz  216kHz

• PLL Slave Mode (BICK pin): fs = 8kHz  216kHz

• PLL Master Mode: 8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz,

48kHz, 54kHz, 88.2kHz, 96kHz, 128kHz, 176.4kHz, 192kHz

(2) External Clock Mode

• Normal Speed: 8kHz to 54kHz

8kHz to 48kHz

• Double Speed: 54kHz to 108kHz

48kHz to 96kHz

(256fs or 512fs)

(384fs or 768fs)

(256fs)

(384fs)

• Quad Speed: 108kHz to 216kHz

96kHz to 192kHz

(128fs)

(192fs)

015004500-E-02

2015/09

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