描述 Description

The AK4377A is stereo advanced 32-bit high sound quality audio DAC with a built-in ground-referenced headphone amplifier. An internal circuit integrates 32-bit digital filters for better sound quality, achieving low distortion characteristics and wide dynamic range. The sampling frequency supports up to 384 kHz. The AK4377A is available in a 36-pin CSP package, utilizing less board space than competitive offerings .

特性 Features

·AK4377AECBAdvanced D/A Converter?with Headphone Amplifier：
·Product Name：AK4377AECB；
·DAC：32-bit Advanced Audio Stereo D/A Converter；
·Sound Color： ? - 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:-125dBV　 - Analog Volume: +6 ~ -20dB & Mute, 2dB Step　- Ground Loop Noise Canceling；
·SNR：125dB；
·THD+N： -107dB(Output Power:? 10mW) -106dB(Output Power:? 25mW)；
·Sampling Rate：8 to 384kHzMaster/Slave Mode；
·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 FilterOSRD (Over Sampling Ratio Doubler) Technology；
·Power Consumption：37.1 / 13.75mW (HP Mode / LP Mode, fs=44.1kHz)；
·Power Supply：AVDD (DAC, PLL): 1.7?to 1.9VCVDD (Headphone Amplifier, Charge Pump): 1.7?to 1.9VLVDD (LDO2 for Digital Core): 1.7?to 1.9V (built-in LDO)TVDD (Digital Interface): 1.65?to 3.6V；
·Operation Temperature：-40 ~ 85°C；
·Package：36-pin CSP (2.74 x 2.56mm, 0.4mm pitch)* *Pin compatible with AK4376A；
·Sales Start：September 2018；

應用 Application

Smartphones, Tablets