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WM8777

Wolfson Microelectronics plc
Part Number WM8777
Manufacturer Wolfson Microelectronics plc
Description 24 BIT 192KHZ AV RECEIVER ON A CHIP
Published Apr 17, 2005
Detailed Description w WM8777 24-bit, 192kHz AV Receiver on-a-Chip DESCRIPTION FEATURES The WM8777 is a high performance, multi-channel ...
Datasheet PDF File WM8777 PDF File

WM8777
WM8777

Overview
w WM8777 24-bit, 192kHz AV Receiver on-a-Chip DESCRIPTION FEATURES The WM8777 is a high performance, multi-channel audio codec.
The WM8777 is ideal for surround sound processing applications for home hi-fi, automotive and other audio visual equipment.
A S/PDIF transceiver with 4-channel input mux is included.
Analogue domain bass management processing, and front channel analogue tone control facilities are provided.
A stereo 24-bit multi-bit sigma delta ADC is used with a six stereo channel input selector.
Each channel has analogue domain mute and programmable gain control.
Sampling rates from 8kHz to 192kHz are supported.
Four stereo 24-bit multi-bit sigma delta DACs are provided, which may be used to support up to 7.
1 channel operation.
If preferred, 5.
1 operation may be chosen, with the spare stereo DAC used to support an Aux remote room.
Sampling rates from 8kHz to 192kHz are supported.
Each DAC channel has independent digital volume and mute control.
A set of input multiplexors allows switching of an external 5.
1 analogue input, or bypass channel stereo analogue input into the signal path.
The front channel analogue signals may be looped out of the chip prior to each master volume control, and external filtering applied in order to select treble and bass filter characteristics.
Adjustment of tone controls is then achieved using on-chip gain adjust amplifiers, addressed via the control interface.
Analogue bass management support is provided, plus analogue stereo mixdown options.
The device is controlled via a serial interface giving access to all features including channel selection, volume controls, tone controls, mutes, de-emphasis and power management facilities.
The device is available in a 100-pin LQFP package.
• AV receiver on-a-chip with 8 DACs and 2 ADCs • Integrated S/PDIF/IEC60958/AES3 transceiver • Analogue Bass Management and stereo mixdown support • Analogue tone controls for front 3 channels • Master volume control on each DAC channel with ga...


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