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AK4373EN 参数 Datasheet PDF下载

AK4373EN图片预览
型号: AK4373EN
PDF下载: 下载PDF文件 查看货源
内容描述: 低功耗立体声DAC HP / SPK-放大器 [Low Power Stereo DAC with HP/SPK-Amp]
分类和应用: 转换器数模转换器放大器
文件页数/大小: 98 页 / 1118 K
品牌: AKM [ ASAHI KASEI MICROSYSTEMS ]
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[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
2
µP Interface: 3-Wire serial, I C 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 I
2
S, 16/20/24bit DSP Mode
CMOS Input Level
MS0991-E-00
-1-
2008/09