描述 Description

This 32-bit advanced D/A converter (DAC) with a headphone amplifier is a higher performing solution of the AK4375A that is adopted by many portable audio products since it was launched in 2014. The AK4376A achieves -107dB THD+N and 125dB SNR, the best performance in the field as a compact DAC with headphone amplifier for portable audio products. Reproducible performance of original acoustic sounds is also improved, showing -100dB or better performances in all audible bands. The digital input format corresponds to high resolution sound sources and supports PCM input up to 384 kHz. The AK4376 is housed in an ultra-small 36-pin CSP package (2.74mm x 2.56mm), enabling premium performance in a very small footprint. It is ideal for audio devices with Hi-Fi function such as smartphones, tablets, portable music players and headphones.●Maximum Sampling Frequency/Resolution:  PCM 384 kHz/32-bit●S/N (SNR):  125 dB●Distortion (THD+N):  -107 dB●Sound Color Digital Filter:  4 typesNews Release2016/01/15The AK4376 is now the best analog performance, high sound quality advanced D/A converter with headphone amplifier integrated into a tiny CSP package.Related Content

特性 Features

????? 1. Stereo High Sound Quality Low Power Advanced 32-bit DAC????? ????????- 4 types of Digital Filter for Sound Color Selection????? ????????- 2 types of Operation Mode (High Performance Mode / Low Power Mode)????? ?2. Ground-referenced Class-G Stereo Headphone-Amp????? ????????- Output Power: 25mW @ 32Ω, 40mW @ 16Ω, THD+N < 0.1%????? ????????- S/(N+D): 106dB????? ????????- S/N: 125dB????? ????????- Output Noise Level: -125dBV (Analog Volume ≤ -14dB)????? ????????- Analog Volume: +6 ~ -20dB & Mute, 2dB Step????? ????????- Ground Loop Noise Cancellation????? ?3. Digital Audio interface????? ????????- Master / Slave Mode????? ????????- Sampling Frequency:????? ???????????????Slave Mode: 8k, 11.025k, 12k, 16k, 22.05k, 24k, 32k, 44.1k, 48k, 64k, 88.2k, 96k, 128k, 176.4k, 192k, 256k, 352.8k, 384kHz????? ???????????????Master Mode: 8k, 11.025k, 12k, 16k, 22.05k, 24k, 32k, 44.1k, 48k, 64k, 88.2k, 96k, 176.4k, 192kHz????? ????????- Interface Format: 32/24/16-bit I2S/MSB justified?????? 4. Power Management?????? 5. PLL?????? 6. X’tal Oscillator?????? 7. μP I/F: I2C(400kHz)?????? 8. Operation Temperature Range: Ta = -40 ~ 85°C?????? 9. Power Supply:????? ????????
? AVDD (DAC, PLL): 1.7 to 1.9V????? ????????
? CVDD (HP-Amp, Charge Pump): 1.7 to 1.9V????? ????????
? LVDD (LDO2 for Digital Core): 1.7 to 1.9V (built-in LDO)????? ????????
? TVDD (Audio I/F): 1.65 to 3.6V????? ?10. Package: 36-pin CSP (2.74 × 2.56mm, 0.4mm pitch)-->[Line-up]● 32-bit Advanced Stereo D/A Converter with Headphone Amplifier·　Product Name；　AK4376AECB　Advanced D/A Converter? ?? with Headphone Amplifier　：　AK4375AECB　Advanced D/A Converter? ?? with Headphone Amplifier??；
· DAC：　32-bit Advanced Stereo D/A Converter：　32-bit Advanced Stereo D/A Converter：
·　　 Sound Color：　4 Types, 32b-it 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: 25mW @ 32Ω , 40mW @ 16Ω , THD+N < 0.1%　- Output Noise Level: -125dBV (Analog Volume < -14dB)　- Analog Volume: +6 to -20dB & Mute, 2dB Step　- Ground Loop Noise Canceling：　Ground Referenced Class-G Stereo Headphone Amplifier　- Output Power: 25mW @ 32Ω, 40mW @ 16Ω, THD+N < 0.1%　- Output Noise Level: -119dBV (Analog Volume < -14dB)　- Analog Volume: +6 to -40dB & Mute, 2dB Step　- Ground Loop Noise Canceling：
·　　 DR, S/N；　125dB：　110dB：
·　　 THD+N；　-107dB；　-99dB；
· Digital Audio Interface；　Sampling Rate: 384 kHz (max)　Master/Slave Mode：　Sampling Rate: 192 kHz (max)　Master/Slave Mode：
· SRC：　Not Available；　Asynchronous Sampling Rate Converter:　- Up-sampling: 6 times　- Down-sampling: 1/6 times：
· Low Jitter PLL：　Available；
· Crystal Oscillator；　Available；
· Power Management Function：　Available；
· Resolution：　32-bit；
· Number of Channel；　2ch；
· Microcomputer Interface；　I2C (400kHz)；
· VELVET SOUND Technology；? ?Switched Capacitor Filter? ?OSRD (Over Sampling Ratio Doubler) Technology；
· Power Consumption：　36.6 / 13.7mW (HP Mode / LP Mode, fs=44.1kHz)：　9.5mW (fs= 44.1kHz)：
· Power Supply：　? AVDD (DAC, PLL): 1.7 to 1.9V　? CVDD (HP-Amp, Charge Pump): 1.7 to 1.9V　? LVDD (LDO2 for Digital Core): 1.7 to 1.9V (built-in LDO)　? TVDD (Audio I/F): 1.65 to 3.6V；
· Operation Temperature；　-40 to 85°C ；
· Package；　36-pin CSP (2.74mm x 2.56mm, 0.4mm pitch)；　36-pin CSP (2.37mm x 2.62mm, 0.4mm pitch)；
· Sales Start：　Dec. 2015；　Aug. 2014；