AK5703 Description
The AK5703 is a 4-channel 24-bit A/D converter with programmable microphone amplifiers and ALC (Automatic Level Control) circuit. It is designed for consumer microphone array applications. An integrated PLL operates from a wide variety of clocks, enabling high design flexibility.
AK5703 Key Features
- 4-Channel ADC
- Full-differential or Single-ended Input
- Microphone Amplifier (+36dB/+30dB/+24dB/+18dB/+15dB/+12dB/+8dB/0dB)
- Input Voltage: 1.8Vpp@AVDD=3.0V (= 0.6 x AVDD)
- ADC Performance: S/(N+D): 85dB, DR, S/N: 96dB@MGAIN=0dB, Single-ended Input S/(N+D): 78dB, DR, S/N: 83dB@MGAIN=+30dB, Fu
- Digital HPF for DC-offset cancellation (fc=3.4Hz@fs=44.1kHz)
- Microphone Sensitivity Correction (+3dB ∼ -3dB, 0.75dB Step)
- Digital ALC (Automatic Level Control)
- Input Digital Volume (+36dB ∼ -52.5dB, 0.375dB Step, Mute)
- Programmable Output Data Delay Delay Time: 0 to 64/64fs (1/64fs Step) 2. Sampling Frequency