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WM8776SEFT/V QFP 10050 WIREMOLD 2008+ -, WM8778, WM878/0426E19-9

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Info of WM8776SEFT/V QFP 10050 WIREMOLD 2008+ -
Info of WM8778
Info of WM878/0426E19-9

WM8776SEFT/V QFP 10050 WIREMOLD 2008+ -, WM8778, WM878/0426E19-9 Selling Leads, Datasheet

MFG:WOLFSON Package Cooled:stock D/C:09+

WM8776SEFT/V QFP 10050 WIREMOLD 2008+ -, WM8778, WM878/0426E19-9 Picture

WM8776SEFT/V QFP 10050 WIREMOLD 2008+ -, WM8778, WM878/0426E19-9 Datasheet download

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Part Number: WM8776SEFT/V QFP 10050 WIREMOLD 2008+ -

MFG: WOLFSON

Package Cooled: stock

D/C: 09+

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WM8778 General Description

The WM8778 is a high performance, stereo audio codec.It is ideal for surround sound processing applications forhome hi-fi, DVD-RW and other audio visual equipment.

The stereo 24-bit multi-bit sigma delta ADC hasprogrammable gain with automatic level control. Digitalaudio output word lengths from 16-32 bits and samplingrates from 32kHz to 96kHz are supported.

A stereo multi-bit sigma delta DAC is used with digitalaudio input word lengths from 16-32 bits and samplingrates from 32kHz to 192kHz. A multiplexor after the DACallows the selection of either an external analogue inputor DAC playback into the line outputs.

The WM8778 supports fully independent sample ratesfor the ADC and DAC. The audio data interface supportsI2S, left justified, right justified and DSP formats.

The device is controlled in software via a 2 or 3 wireserial interface which provides access to all featuresincluding volume controls, mutes, and de-emphasisfacilities. It can also be controlled in hardware whichgives access to the most commonly used features.

Control interface selection is done via the MODE pin (trilevel).The device is available in a 28-pin SSOP package.

WM8778 Maximum Ratings

CONDITION	MIN	MAX
Digital supply voltage	-0.3V	+3.63V
Analogue supply voltage	-0.3V	+7V
Voltage range digital inputs (DI, CL, CE an MODE)	DGND -0.3V	+7V
Voltage range digital inputs (MCLK, DIN, ADCLRC, DACLRC,ADCBCLK and DACBCLK)	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

WM8778 Features

• Audio Performance− 108dB SNR ('A' weighted @ 48kHz) DAC− 102dB SNR ('A' weighted @ 48kHz) ADC
• DAC Sampling Frequency: 32kHz 192kHz
• ADC Sampling Frequency: 32kHz 96kHz
• Stereo ADC input analogue gain adjust from +24dB to 21dBin 0.5dB steps
• ADC digital gain from -21.5dB to -103dB in 0.5dB steps
• Programmable Automatic Level Control (ALC) or Limiter onADC input.
• Stereo DAC with analogue line outputs.
• 3-Wire SPI Compatible or 2-wire Serial Control Interface
• Hardware Control Mode
• Master or Slave Clocking Mode
• Programmable Audio Data Interface Modes− I2S, Left, Right Justified or DSP− 16/20/24/32 bit Word Lengths
• Analogue Bypass Path Feature
• 2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation

WM8778 Typical Application

• Surround Sound AV Processors and Hi-Fi systems
• DVD-RW

WM8778 Connection Diagram

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