| IO Supply (Max) (V) |
3.63 |
| IO Supply (Min) (V) |
1.62 |
| Digital Supply (Max) (V) |
3.63 |
| Digital Supply (Min) (V) |
1.62 |
| Signal to noise ratio |
103dB，Sum off
105dB，2CH Summing
108dB，4CH Summing |
| Dynamic range |
103dB，Sum off
105dB，2CH Summing
108dB，4CH Summing |
| THD+N Ratio |
-95dB |
| DSP |
NO |
| Protection |
/ |
| Control Interface |
IIC |
| Temperature |
-40℃~85℃ |
Multichannel high-performance ADC:4 channel analog microphones or line-in;4 channel digital PDM microphones
ADC line and microphone differential input Performance:103 dB signal to noise ratio, SUM OFF;103 dB dynamic range, ,SUM OFF;-95 dB THD+N Ratio
ADC channel sum-mixer mode,DR performance:105dB SUM ON,2-channels summing;108dB SUM ON,4-channels summing
ADC input voltage:Differential, 2-VRMS full-scale inputs;Single-ended, 1-VRMS full-scale inputs
Programmable channel settings:Channel gain: -6 dB to 36 dB,1 dB steps;Digital volume control: -96dB to 30dB, 0.094dB/step;Phase calibration with 163 ns resolution
Programmable microphone bias
Low-latency signal processing filter selection:ADC linear-phase datapath group delay 240us(@fs=48kHz) ;ADC low-latency datapath group delay 120us(@fs=48kHz)
Programmable high pass filter(HPF)
Automatic gain controller (AGC)
I2C-bus control interface
Integrated high-performance audio PLL
I2S/TDM interface (Advanced ):I2S, Left-Justified and Right-Justified;Supports 1/2/4/6/8/16 slots TDM;Supports 8 to 768kHz sample rates;Data Width: 8~32 Bits;Master or slave interface
Power Supplies :VDDA、VDDM: 3.3V;VDDIO: 3.3 V or 1.8 V
The AW89403 is a high performance, low power 4-channel audio analog-to-digital converter (ADC) for microphone array application.
The device supports line and microphone inputs. The device integrates four PGAs for quad differential inputs, MIC1P & MIC1N, MIC2P & MIC 2N, MIC3P & MIC3N and MIC4P & MIC4N. The device supports simultaneous sampling of up to four analog channels or four digital channels for the pulse density modulation (PDM) microphone input.
The device integrates programable channel gain, digital volume control, a programmable microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), low-latency filter mode, sum-mixer mode and allows for sample rates up to 768 kHz.
The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with the I2C interface
The device is very suitable for music and voice application, such as Microphone Array, Far field voice capture, Smart speaker, Conference system, Sound bar, Audio Interface, etc.
AW89403 is available in a WBQFN 4X4-32L (Height 0.75) Package.
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