AK5736

[AK5736] AK5736 6-Channel Differential Audio ADC with Diagnostics 1. General Description The AK5736 is a 6-channel ADC that supports line and microphone inputs with an SAR ADC for error detection. The error detection function monitors connection status of line and microphone inputs. The AK5736 has Pre-Gain Amplifiers (PGA) for microphone and Microphone bias (MIC bias) voltage sources. These functions make it ideal for microphone array applications such as automotive ANC, (Active Noise Cancelation), etc. The TDM audio format makes it easy to connect with a DSP. 2. Features 1. Audio ADC - 6-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 - 4 Types of LPF 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 4. Master/Slave Mode 5. Audio Interface Format: MSB First, 2’s complement - 24bit I2S - 24bit Left justified - 24bit TDM interface up to 16ch cascade connection 6. SAR ADC - 1ch SAR ADC for Error Detection 7. Error Detect Function - Open - Short across Inputs - Short to Ground - Short to MIC Bias Voltage - Short to Battery - MIC Bias Over Current/Voltage - Char...