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WM8768GEDS, WM8770IFT, WM8772

Table of contents:
Info of WM8768GEDS
Info of WM8770IFT
Info of WM8772

WM8768GEDS, WM8770IFT, WM8772 Selling Leads, Datasheet

MFG:wolfsonm Package Cooled:SMD28 D/C:5.06

WM8768GEDS, WM8770IFT, WM8772 Datasheet download

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Part Number: WM8768GEDS

MFG: wolfsonm

Package Cooled: SMD28

D/C: 5.06

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WM8772 General Description

The WM8772 is a multi-channel audio codec ideal for DVDand surround sound processing applications for home hi-fi,automotive and other audio visual equipment.

A stereo 24-bit multi-bit sigma delta ADC is used. Digitalaudio output word lengths from 16-32 bits and samplingrates from 32kHz to 96kHz are supported. The 32-leadversion allows separate ADC and DAC samples rates.

Three stereo 24-bit multi-bit sigma delta DACs are usedwith oversampling digital interpolation filters. Digital audioinput word lengths from 16-32 bits and sampling rates from8kHz to 192kHz are supported. Each DAC channel hasindependent digital volume and mute control.

The audio data interface supports I2S, left justified, rightjustified and DSP digital audio formats.

The device is controlled via a 3 wire serial interface. Theinterface provides access to all features including channelselection, volume controls, mutes, de-emphasis and powermanagement facilities. The device is available in a 28-pinSSOP or 32 pin TQFP.

WM8772 Maximum Ratings

CONDITION	MIN	MAX
Digital supply voltage	-0.3V	+5V
Analogue supply voltage	-0.3V	+7V
Voltage range digital inputs	DGND -0.3V	DVDD + 0.3V
Voltage range digital inputs	AGND -0.3V	AVDD +0.3V
Master Clock Frequency		37MHz
Operating temperature range, T_A	-25°C	+85°C
Storage temperature	-65°C	+150°C
Package body temperature (soldering 10 seconds)		Refer to Ordering Information, p5 and p6
Package body temperature (soldering 2 minutes)		+183°C

WM8772 Features

• Audio Performance− 103dB SNR ('A' weighted @ 48kHz) DAC− 100dB SNR ('A' weighted @ 48kHz) ADC (TQFP)
• DAC Sampling Frequency: 8kHz 192kHz
• ADC Sampling Frequency: 32kHz 96kHz
• ADC and DAC can run at different sample rates (32 pinTQFP version only)
• 3-Wire SPI Serial or Hardware Control Interface
• Programmable Audio Data Interface Modes− I2S, Left, Right Justified or DSP− 16/20/24/32 bit Word Lengths
• Three Independent stereo DAC outputs with independentdigital volume controls
• Master or Slave Audio Data Interface
• 2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supplyOperation
• 28 pin SSOP or 32 pin TQFP Package

WM8772 Typical Application

• DVD Players
• Surround Sound AV Processors and Hi-Fi systems
• Automotive Audio

WM8772 Connection Diagram

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