WM8775SEDSWA/R

The WM8775SEDSWA/R is a high performance, stereo audio ADC with a 4 channel input mixer. The features of WM8775SEDSWA/R are: (1)Audio Performance: 102dB SNR ('A' weighted @ 48kHz), -90dB THD; (2)ADC Sampling Frequency: 32kHz - 96kHz; (3)Four stereo ADC inputs with analogue gain adjust from; (4)+24dB to -21dB in 0.5dB steps; (5)Digital gain adjust from -21.5dB to -103dB.; (6)Programmable Automatic Level Control (ALC) or Limiter on; (7)ADC input; (8)3-Wire SPI Compatible or 2-wire Serial Control Interface.

The following is about the absolute maximum ratings of WM8775SEDSWA/R: (1)Digital supply voltage: -0.3V  to +3.63V; (2)Analogue supply voltage: -0.3V to +7V; (3)Voltage range digital inputs (DI, CL, CE and MODE): DGND -0.3V to +7V; (4)Voltage range digital inputs (MCLK, ADCLRC and BCLK): DGND -0.3V to DVDD + 0.3V; (5)Voltage range analogue inputs: AGND -0.3V to AVDD +0.3V; (6)Master Clock Frequency: 37MHz; (7)Operating temperature range, TA: -25°C to +85°C; (8)Storage temperature: -65°C +150°C.

The electrical characteristics of the WM8775SEDSWA/R are: (1)Input LOW level: 0.8 V; (2)Input HIGH level: 2.0 V; (3)Output LOW: 0.1 x DVDD V at IOL=1mA; (4)Output HIGH: 0.9 x DVDD V at IOH=1mA; (5)Reference voltage: AVDD/2 V; (6)Potential divider resistance: 50k ; (7)Dynamic Range: 102 dB; (8)Total Harmonic Distortion (THD): -90 dB; (9)ADC Channel Separation: 90 dB; (10)Programmable Gain Step Size: 0.25 dB min, 0.5 dB typ and 0.75 dB max; (11)Programmable Gain Range(Analogue): -21 dB min and +24 dB max.