QS7779PM/CM
NIPPON PRECISION CIRCUITS INC.
3D Stereo Enhancement and 3D Virtual Stereo Surround with Dolby Pro Logic an...
QS7779PM/CM
NIPPON PRECISION CIRCUITS INC.
3D Stereo Enhancement and 3D Virtual Stereo Surround with Dolby Pro Logic and Mixed DVD (AC-3) Decoder
OVERVIEW
The QS7779PM/CM is an audio processor IC which implements a decoder for stereo matrix encoded source materials such as the Dolby Surround Pro Logic and mixed DVD (AC−3) with surround virtualization using QSound™ technology developed and licensed by QSound Labs, Inc. This chip produces enhanced stereo sound for a stereo input signal and if the input signal contains matrix encoded surround sound, the chip decodes it and produces 3D virtualized surround sounds with two speakers.
FEATURES
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Capable of decoding Dolby Surround materials such as Dolby Pro Logic or other matrix surround encoded materials (DVD/AC−3) Virtualized surround sound with two speakers 3D stereo sound enhancement Two enhanced levels Parallel and serial digital interface for mode control
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QS7779CM for I2C 2 control pins serial interface (Data, Clock) QS7779PM for three-wire serial interface (Data, Clock and Strobe) Supply
voltage (analog): 5 to 13V Supply
voltage (digital): 4.5 to 5.5V 24-pin SSOP packaging
APPLICATIONS
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DVD, Laser disk player Audio systems including TV, Radio and VCR
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Computer-based multimedia products, including sound cards and powered loudspeakers
PINOUT(Top view)
QS7779PM QS7779CM
QXAC3 QXAC2 QXAC1
1
24
QXAC4 VCC QXBC1
QXAC3 QXAC2 QXAC1 RIN LIN COUT CIN VREFIN VREFOUT VREF GND SPRD(SCL)
1
24
QXAC4 V...