AK4645
AK4645 is Stereo CODEC manufactured by Asahi Kasei Microdevices.
DESCRIPTION
The AK4645 is a stereo CODEC with a built-in Microphone-Amplifier and Headphone-Amplifier. The AK4645 features analog mixing circuits and PLL that allows easy interfacing in mobile phone and portable A/V player designs. The AK4645 is available in a 32pin QFN, utilizing less board space than petitive offerings.
FEATURES
1. Recording Function
- 4 Stereo Input Selector
- Stereo Mic Input (Full-differential or Single-ended)
- Stereo Line Input
- MIC Amplifier (+32d B/+26d B/+20d B or 0d B)
- Digital ALC (Automatic Level Control) (+36d B ∼
- 54d B, 0.375d B Step, Mute)
- ADC Performance: S/(N+D): 83d B, DR, S/N: 86d B (MIC-Amp=+20d B) S/(N+D): 88d B, DR, S/N: 95d B (MIC-Amp=0d B)
- Wind-noise Reduction Filter
- Stereo Separation Emphasis
- Programmable EQ
2. Playback Function
- Digital De-emphasis Filter (tc=50/15µs, fs=32k Hz, 44.1k Hz, 48k Hz)
- Bass Boost
- Soft Mute
- Digital Volume (+12d...
