Wolfson Microelectronics plc WM8722
The WM8722 is a high performance stereo DAC designed for audio applications such as digital TV and set top boxes. The WM8722 has two stereo analogue outputs, one at line level and one that includes a digitally controllable mute and attenuator function. The WM8722 consists of a serial interface port, digital interpolation filter, multi-bit sigma delta modulator and stereo DAC in a small 20-pin SSOP package.DESCRIPTION
An on-board tone generator can be routed through the line or variable outputs. WM8722 supports data input word lengths from 16-24 bits and sampling rates up to 96kHz. The 3 or 2-wire serial MPU compatible control port provides access to all features including tone generation, on-chip mute, attenuation and phase reversal. The programmable data input port supports glueless interfaces to popular DSPs, audio decoders and S/PDIF and AES/EBU receivers.FEATURES
● Performance − 102dB SNR (‘A’ weighted @48kHz) − THD+N: -90dB @ F.S. − 5V or 3V supply operation − Sampling frequency: 8kHz – 96kHz● 3-wire or 2-wire serial MPU compatible interface for − Input data word; 16/20/24-Bit − Soft mute − De-emphasis − Volume control
● On-board tone generator (1Hz – 32kHz, 0.1 – 25.5s)
● Stereo analogue inputs
● 20-pin SSOP package
APPLICATIONS
● Digital TV● Digital broadcast receivers
● Set top boxes BLOCK DIAGRAM DIN (17) BCKIN (19) LRCIN (18) SCKI (20) I2S/SDIF 16,18, 20 OR 24 BITS MD (3) M...