AK4373集成電路（IC）的ADC/DAC-特殊用途規(guī)格書PDF中文資料

AK4373屬于集成電路（IC）的ADC/DAC-特殊用途。由旭化成微電子株式會社制造生產(chǎn)的AK4373ADC/DAC - 特殊用途該產(chǎn)品族中的產(chǎn)品可用于模擬和數(shù)字表示的信息轉(zhuǎn)換，適用于特定用例，或集成了通用數(shù)據(jù)轉(zhuǎn)換器中不常見的其他功能。例如針對超聲或汽車?yán)走_(dá)應(yīng)用集成了低噪聲放大器和可變增益級的器件、注重音頻和視頻的產(chǎn)品、在段碼式顯示器上集成顯示測量值功能的器件、集成輸入輸出電氣隔離的器件等。

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 16? 3.3V SNR: 96dB 130mW output (Differential mode) into 32? 3.3V SNR: 96dB 60mW output (Pseudo cap-less mode) into 16? 3.3VSNR: 86dB Pop-noise free at power-up and reset

□ Stereo Lineout S□NR: 96dB

□ Mono Speaker Driver Available for both Dynamic and Piezo Speaker 0.8W @ 8? HVDD = 4.0V 1.0W @ 4? 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

□ Power Supply: Analog (AVDD): 2.2 to 3.6V Digital (DVDD): 1.6 to 3.6V Driver (HVDD): 2.2 to 4.0V

□ Power Consumption: 11.9mW headphone playback

□ Ta = -30 ~ +85°C

□ Package: 32-pin QFN (5mm x 5mm, 0.5mm pitch)

□ Pin/Register compatible with AK4343