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QS7779CM Hoja de datos

Número de piezacomponentes DescripciónFabricante
QS7779CM 3D Stereo Enhancement and 3D Virtual Stereo Surround with Dolby Pro Logic and Mixed DVD (AC-3) Decoder NPC
Nippon Precision Circuits  NPC
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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
■ 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
    • 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
■ DVD, Laser disk player
■ Audio systems including TV, Radio and VCR
■ Computer-based multimedia products, including sound cards and powered loudspeakers

 

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