AK4373

更新时间： 2024-11-04 06:36:51

品牌	Logo	应用领域
AKM		放大器
页数	文件大小	规格书
98页	1118K
描述
Low Power Stereo DAC with HP/SPK-Amp

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AK4373 数据手册

[AK4373]

AK4373

Low Power Stereo DAC with HP/SPK-Amp

GENERAL DESCRIPTION

The AK4373 is a low power stereo 24bit DAC with an integrated stereo headphone amplifier and a

monaural speaker driver. It can be used for a variety of portable audio and media player applications,

including game consoles, dedicated headphone drivers, personal navigation devices, and portable media

players. The output drivers can be configured for three unique use cases: mono speaker driver or

single-ended ac-coupled headphones which can be used as stereo line-out, DC-coupled BTL

headphones and Pseudo Cap-less. The AK4373 operates off of a low-voltage power supply, ranging from

2.2V to 3.6V. The output amplifiers operate at up to 4.0V of the headphone power supply. The device is

packaged in a space-saving 32-pin QFN package.

FEATURES

Sampling Rate: 8 kHz ∼ 48 kHz

8-times Over sampling Digital Filter

SCF with high tolerance to clock jitter

Stereo Headphone Amplifier

65mW output (Single-ended mode) into 16Ω 3.3V

SNR: 96dB

130mW output (Differential mode) into 32Ω 3.3V

SNR: 96dB

60mW output (Pseudo cap-less mode) into 16Ω 3.3V

SNR: 86dB

Pop-noise free at power-up and reset

Stereo Lineout

SNR: 96dB

Mono Speaker Driver

Available for both Dynamic and Piezo Speaker

0.8W @ 8Ω HVDD = 4.0V

1.0W @ 4Ω HVDD = 4.0V

SNR: 97dB

Digital Processing

HPF, LPF, 3D Enhance, Frequency Compensation, 5-BiQuads,

Digital ALC/Limiter: +36dB to -54dB, 0.375dB/step

Digital Volume Control: +12dB to -115dB, 0.5dB/step, Mute

Analog Mixing: Mono input

PLL: Input Frequency: 27MHz, 25MHz, 24MHz, 13.5MHz, 12.288MHz,

12MHz, and 11.2896MHz (MCKI pin)

1fs (LRCK pin)

32fs or 64fs (BICK pin)

Input Level: CMOS or AC coupling Input

Master Clock (MCKI pin): 256/512/1024fs

Master Clock Output (MCKO pin): 32fs, 64fs, 128fs, 256fs

µP Interface: 3-Wire serial, I²C bus (version1.0, 400 KHz Fast-mode)

Audio Interface Format: MSB First, 2’s complement

16/20/24bit MSB justified, 16/20/24bit LSB justified,

16/20/24bit I²S, 16/20/24bit DSP Mode

CMOS Input Level

MS0991-E-00

2008/09

- 1 -

12 3 4 5 6 7...98

中文翻译

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