AK7770EQ Datasheet, PDF (2/22 Pages) Asahi Kasei Microsystems – Audio DSP with Multi-Channel Audio CODEC

■ Stereo Headphone Amplifier with Volume Control
- DAC3 direct connection
- S/(N+D): 73dB (fs=48kHz)
- S/N: 86dB (fs=48kHz)
- Analog volume control (+0/-50dB,1.0/2.0/4.0dB per step)
- Output power: 22.5mW@16Ω
- No click noise at power ON/OFF
■ Headphone Detection Circuit (denounce circuit)
■ High Tolerance to Clock Jitter
■ Sample Rate Converter
- Dual 2ch SRC
- Input sample rate: 32kHz~48kHz
- Output sample rate: 48kHz fixed
■ DIT
- S/PDIF, IEC958, AES/EBU, EIAJ CP1201
- Output Selector (DIT or Through)
- 24 bit interface format
- 16 bit interface format
■ CMOS Level Digital I/F (for 3.3V)
■ Master Clock Input: 256fs (fs=48kHz)
■ Master Clock Output: 128fs, 192fs, 256fs, 384fs
■ Three Digital Audio Inputs
■ I²C µP I/F
■ Power Supply: +3.3V ±0.3V, +1.8V ±0.1V
■ Temperature Range: -10°C~70°C
■ Package: 80pin LQFP (0.5mm pitch)
[AK7770]
MS0699-E-01-PB
-2-
2008/06