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WM8756, WM8757, WM8758AG

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Info of WM8756
Info of WM8757
Info of WM8758AG

WM8756, WM8757, WM8758AG Selling Leads, Datasheet

MFG:WM Package Cooled:BGA D/C:07+

WM8756, WM8757, WM8758AG Datasheet download

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Part Number: WM8756

MFG: WM

Package Cooled: BGA

D/C: 07+

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WM8756 General Description

The WM8756 is a high performance 6-channel DACdesigned for audio applications such as SACD™ players,DVD-V and DVD-A, home audio and theatre systems. Thedevice supports data input word lengths from 16 to 32-bitsand sampling rates up to 192kHz. The WM8756 canimplement 2 or 6 channels at 192kHz for high-end DVDAudio,or 6 channels at up to 192kHz for surroundapplications. Additionally 64x DSD bitstream support isoffered on all 6 channels. The WM8756 consists of a serialinterface port, digital interpolation filters, multi-bit sigmadelta modulators and 6 DACs in a 48-pin TQFP package.The WM8756 also includes a digitally controllable mute andattenuator function on each channel, accessible duringPCM operation. An on-chip multiplexer selects betweenPCM or DSD audio data input pins.

The WM8756 supports hardware or software connectionschemes for audio DAC control. The serial control interfaceprovides access to a wide range of features including onchipmute, attenuation and phase reversal. Hardware pincontrollableoperation is also available.

The WM8756 is an ideal device for all surround soundapplications supporting the SACD™ audio format, such asSACD players, multi-format players and homeentertainment systems.

WM8756 Maximum Ratings

CONDITION	MIN	MAX
Digital supply voltage	-0.3V	+7V
Analogue supply voltage	-0.3V	+7V
Voltage range digital inputs	DGND -0.3V	DVDD +0.3V
Voltage range analogue 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
Lead temperature (soldering 10 seconds)		+240°C
Lead temperature (soldering 2 minutes)		+183°C

WM8756 Features

• 6-Channel DAC with PCM or Bitstream (DSD) operation.
• DSD 64x Bitstream Support for Super Audio CD™
• Independent input pins for PCM and DSD data with onchipmultiplexer
• THD 96dB, SNR 106dB ('A' weighted @ 48kHz)
• PCM mode Sampling Rate: 8kHz 192kHz
• Master or slave operation with Normal or Phasemodulation method of DSD data transfer
• 3-Wire Serial Control Interface
• Programmable PCM Audio Data Interface Modes− I2S, Left, Right Justified or DSP− 16/20/24/32 bit Word Lengths
• Independent Digital Volume Control on Each Channel with127.5dB Range in 0.5dB Steps (in PCM mode)
• 3.0V 5.5V Supply (3.3V digital / 5V analogue option)
• 48-pin TQFP Package

WM8756 Typical Application

• Super Audio CD (SACD™) Players
• Universal and Multi-Format disc players
• Home theatre systems

WM8756 Connection Diagram

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