AK5734 - AKM

AK5734 4-Channel Differential Audio ADC

The AK5734 is a 4-channel audio ADC with an integrated SAR ADC, enabling robust error detection. The error detection function monitors the connection status of the line and microphone inputs. The AK5734 includes mic PGAs (pre-gain amplifiers) and programmable microphone bias. These functions make it ideal for microphone array applications such as automotive .

Features

1. Audio ADC - 4-Channel Audio ADC - Full-differential Input and Single-ended Input - PGA for Microphone: 0dB or 6dB - 20dB (1dB step) - Input Voltage: 2.0 Vrms - ADC Performance: S/(N+D): typ 92B DR, S/N: typ 100dB - 5 Types of LPF
• Voice Filter
• Sharp Roll Off Filter
• Slow Roll Off Filter
• Short Delay Sharp Roll Off Filter (GD=4.9/fs)
• Short Delay Slow Roll Off Filter (GD=4.3/fs) - Digital Volume: MUTE, -115dB - +52dB (1dB step) - Digital HPF for DC-offset cancellation: fc=2Hz 2. Sampling Rate: 8kHz - 192kHz 3. Master Clock: 128fs, 192fs, 256fs, 384fs, 512fs, 1024fs, 2048fs 4. Master/Sl.