WM8776SEFT

Product Summary

The WM8776SEFT is a high performance, stereo audio CODEC with five channel input selector. The device is ideal for surround sound processing applications for home hi-fi, DVD-RW and other audio visual equipment. The WM8776SEFT supports fully independent sample rates for the ADC and DAC. The audio data interface supports I2S, left justified, right justified and DSP formats. The WM8776SEFT is controlled in software via a 2 or 3 wire serial interface, selected by the MODE pin, which provides access to all features including channel selection, volume controls, mutes, and de-emphasis facilities. The device is available in a 48-pin TQFP package. The applications of the WM8776SEFT include Surround Sound AV Processors and Hi-Fi systems and DVD-RW.

Parametrics

WM8776SEFT absolute maximum ratings: (1)Digital supply voltage: -0.3V +3.63V; (2)Analogue supply voltage: -0.3V +7V; (3)Voltage range digital inputs (MCLK, DIN, ADCLRC, DACLRC, ADCBCLK, DACBCLK, DI, CL, CE and MODE): DGND -0.3V DVDD + 0.3V; (4)Voltage range analogue inputs AGND: -0.3V AVDD +0.3V; (5)Master Clock Frequency: 37MHz; (6)Operating temperature range, TA: -25 +85℃; (7)Storage temperature: -65 +150℃.

Features

WM8776SEFT features: (1)Audio Performance: 108dB SNR (A weighted @ 48kHz) DAC; 102dB SNR (A weighted @ 48kHz) ADC; (2)DAC Sampling Frequency: 32kHz - 192kHz; (3)ADC Sampling Frequency: 32kHz - 96kHz; (4)Five stereo ADC inputs with analogue gain adjust from +24dB to -21dB in 0.5dB steps; (5)Programmable Limiter or Automatic Level Control (ALC); (6)Stereo DAC with independent analogue and digital volume controls; (7)Stereo Headphone and Line Output; (8)3-Wire SPI Compatible or 2-Wire Software Serial Control Interface; (9)Master or Slave Clocking Mode; (10)Programmable Audio Data Interface Modes: I2S, Left, Right Justified or DSP; 16/20/24/32 bit Word Lengths; (11)Analogue Bypass Path Feature; (12)Selectable AUX input to the volume controls; (13)2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation.

Diagrams