AK4377ECB数据手册集成电路（IC）的音频专用规格书PDF

描述 Description

The AK4377 is stereo advanced 32-bit high sound quality audio DAC with a built-in ground-referenced headphone amplifier that adopted VELVET SOUND technology.The AK4377 has four types of 32-bit digital filters for better sound quality, achieving low distortion characteristics and wide dynamic range.AK4377 accepts up to 768kHz PCM data and DSD256 input.The AK4377 is available in a 36-pin CSP package, utilizing less board space than competitive offerings .

特性 Features

·　Product Name；　AK4377ECB　Advanced D/A Converter     with Headphone Amplifier　：AK4376AECB　Advanced D/A Converter     with Headphone Amplifier　；
·　DAC：　32-bit Advanced Audio Stereo D/A Converter：
·　　Sound Color：　4 Types, 32-bit 8-fold Digital Filters　    - Short Delay Sharp Roll-off, GD=5.5/fs　    - Short Delay Slow Roll-off, GD=4.7/fs　    - Sharp Roll-off　    - Slow Roll-off；
·　Headphone Amplifier；　Ground Referenced Class-G Stereo Headphone Amplifier　    - Output Power: 60mW @ 16Ω 　    - Output Noise Level: -129dBV　    - Analog Volume: +4 to -20dB & Mute　    - Ground Loop Noise Canceling：　Ground Referenced Class-G Stereo Headphone Amplifier　    - Output Power: 60mW @ 16Ω　    - Output Noise Level: -126dBV　    - Analog Volume: +6 to -20dB & Mute, 2dB Step　    - Ground Loop Noise Canceling：
·　　SNR；　128dB：　125dB：
·　　THD+N；　-109dB；　-107dB；
·　Sampling Rate；　8 to 768kHz　Master/Slave Mode：　8 to 384kHz　Master/Slave Mode：
·　DSD Input：　DSD64/DSD128/DSD256 (DoP (DSD over PCM) Input)：　Not Available：
·　Low Jitter PLL：　Available；
·　Crystal Oscillator；　Available；
·　Power Management Function：　Available；
·　Resolution：　32-bit；
·　Number of Channel；　2 channels；
·　Microcomputer Interface；　I2C (400kHz)；
·　VELVET SOUND Architecture；　Switched Capacitor Filter　OSRD (Over Sampling Ratio Doubler) Technology；
·　Power Consumption：　59.7 / 20.7mW (HP Mode / LP Mode, fs=44.1kHz)：　36.3 / 13.7mW (HP Mode / LP Mode, fs=44.1kHz)：
·　Power Supply：　AVDD (DAC, PLL): 1.7 to 1.9V　CVDD (Headphone Amplifier, Charge Pump): 1.7 to 1.9V　LVDD (LDO2 for Digital Core): 1.7 to 1.9V (built-in LDO)　TVDD (Digital Interface): 1.65 to 3.6V；
·　Operation Temperature；　-40 to 85°C ；
·　Package；　36-pin CSP (2.893 x 3.082mm, 0.4mm pitch)；　36-pin CSP (2.74 x 2.56mm, 0.4mm pitch)；
·　Sales Start：　May 2018；　May 2017；

应用 Application

Portable Audio, (Smartphones, Tablets, Portable Music Players, USB Headphones, Bluetooth Headphones, etc.)