QSurround3D Virtual Audio Processor Dolby AC-3 Prologic Device Specifi

The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers.

QSurround3D Virtual Audio Processor Dolby AC-3 Prologic Device Specifi

Datasheet Thumbnail

Top Searches for this datasheet

QS7777CF/QS7777PF
QSurround3D Virtual Audio Processor Dolby AC-3 Prologic Device Specifications Preliminary Information
Overview: QS7777 audio processor which implements QSurroundtechnology developed licensed QSound Labs, Inc. This chip processes decoded Dolby* Digital (AC-3), Dolby Surround other multi-channel formats produces virtualized sounds speaker systems. addition, various combinations virtualization soundfield enhancement employed provide speaker systems with maximum spatial rendering effectiveness each case. Feature: Enhanced playback with improved separation better surround enhanced levels Virtualize surround speakers flexible speaker systems Audio signals will processed speaker systems Dolby Digital (AC-3) Audio signals will processed speaker systems Dolby Surround (Pro Logic) Monaural stereo conversion Logic surround signal Satisfy certification requirements Dolby Laboratories Licensing Corporation Parallel serial digital interface mode control QS7777CF control pins serial interface QS7777PF control pins serial interface (Data, Clock Strobe) volt supply 48-pin packaging Application: Laser Disk player Home theater audio systems including Computer-based multimedia products, including sound cards, powered loud speakers audio Configuration:
Serial Interface
Controls Serial Interface
Ref: QS7777R1.DOC Rev: 1.00
QS7777 Data Sheet Preliminary QSound Labs, Inc.
Date: 11/17/99 Page
QS7777CF/QS7777PF
QSurround3D Virtual Audio Processor Dolby AC-3 Prologic Device Specifications Preliminary Information
Packaging Dimension:
Block Diagram:
Ref: QS7777R1.DOC Rev: 1.00
QS7777 Data Sheet Preliminary QSound Labs, Inc.
Date: 11/17/99 Page
QS7777CF/QS7777PF
QSurround3D Virtual Audio Processor Dolby AC-3 Prologic Device Specifications Preliminary Information
Functions:
Number Name Parallel Serial VREFOUT VREFIN MSC3 MSC2 MSC1 PSAVE STRB MUTE SPREAD RROUT RLOUT COUT FROUT FLOUT QXAC1 QXAC2 QXAC3 QXAC4 QXAC5 QXBC1 QXBC2 QXBC3 QXBC4 QXBC5 QXCC1 QXCC2 QXCC3 QXCC4 QXDC1 QXDC2 QXDC3 QXDC4 FLIN FRIN SUBIN RLIN RRIN MSC4 MSC5 MSC6 Description Buffered reference voltage output (Vcc/2) Reference voltage input (Biased Vcc/2 internally) Capacitor Capacitor Capacitor Ground
Power save control power save power save off) Serial data strobe (Not applicable QS7777CF) Output mute control mute mute off) Serial data shift clock Enhancement control spread maximum, spread minimum) Serial data input. data output I2C(QS7777CF) Center speaker control actual center, virtual center) Rear speaker control actual rear, virtual rear) Monaural virtual stereo control off) Bypass control Bypass QSurround process
Interface mode control parallel I/O, serial I/O) Digital power supply Rear right speaker signal Rear left speaker signal Center speaker signal Front right speaker Front left speaker output Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Analog power supply Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Capacitor Front left signal input Front right signal input Center signal input Woofer signal input Rear left signal input Rear right signal input Capacitor Capacitor Capacitor
Ref: QS7777R1.DOC Rev: 1.00
QS7777 Data Sheet Preliminary QSound Labs, Inc.
Date: 11/17/99 Page
QS7777CF/QS7777PF
QSurround3D Virtual Audio Processor Dolby AC-3 Prologic Device Specifications Preliminary Information
Electrical Specification:
Absolute Maximum Ratings
Parameter Supply voltage range (analog) Supply voltage range (digital) Input voltage range (analog) Input voltage range (digital) Power dissipation Storage temperature range Soldering temperature Soldering time Symbol VIANA VIDIG Tstg TSLD tSLD Symbol TOPR Symbol VFIN1 VRIN1 VCIN VSUBIN GFFBYP GRRBYP GRFBYP GSUBF GFXF GRXR GRXF ZAIN VREFOUT tHD;STA tSU;STA tHD;DAT tSU;DAT tHIGH tLOW ICCSAVE IDDSAVE THDF THDR Rating -0.3 VCC>VDD-0.3 -0.3 -0.3 +0.3 -0.3 +0.3 Limits VCCVDD
Limits/min
Unit Unit
Recommended Operating Condition
Parameter Operating voltage (analog) Operating voltage (digital) Operating temperature range
Electrical Chracteristics
Parameter Front input voltage Rear input voltage Center input voltage input voltage FOUT bypass gain ROUT bypass gain FOUT bypass gain COUT gain FOUT gain SUBIN FOUT gain FOUT gain FOUT cross gain ROUT gain ROUT cross gain FOUT gain FOUT cross gain Analog input impedance Reference voltage HIGH level input voltage level input voltage HIGH level input current level input current width HIGH width Set-up time, Hold time, Set-up time, STRB STRB width HIGH Hold time, Set-up time, Hold time, Set-up time, width HIGH width rise time fall time Operating current (analog) Operating current (digital) Standby current (analog) Standby current (digital) Signal Noise Ratio Frequency Response Total Harmonic Distortion Total Harmonic Distortion Condition FLIN=-FRIN, RLIN=RRIN=CIN=SUBIN=0 RLIN=-RRIN, FLIN=FRIN=CIN=SUBIN=0 FLIN=FRIN=RLIN=RRIN=SUBIN=0 FLIN=FRIN=RLIN=RRIN=CIN=0
SPREAD SPREAD
SPREAD SPREAD FLIN, FRIN, RLIN, RRIN, CIN, COUT
VIN=VCC VIN=GND
FLIN, SPREAD=HIGH, CLIPPING RLIN, SPREAD=HIGH, CLIPPING
(VCC=9V, TA=25°C unless otherwise noted) Limits/typ Limits/max Unit VRMS VRMS VRMS VRMS 10.5 VCC/2 1000 0.13 0.12 0.035 0.08 0.15
Ref: QS7777R1.DOC Rev: 1.00
QS7777 Data Sheet Preliminary QSound Labs, Inc.
Date: 11/17/99 Page
QS7777CF/QS7777PF
QSurround3D Virtual Audio Processor Dolby AC-3 Prologic Device Specifications Preliminary Information
Serial Interface: Serial interface with control pins. (for QS7777PF)
Serial interface with (for QS7777CF) address AD7-AD0} 00111100}
Operating Mode: BYP, control function Input signals FLIN, FRIN, RLIN, RRIN, SUBIN processed mapped output pins depending process mode specified combination BYP, pins. following table shows Input pins output pins matrix each operating mode.
NOTE-1 NOTE-2 NOTE-3 NOTE-4 NOTE-5
means QSurround process. example, Qx(FLIN) indicates processed front left input signal. means RLIN+RRIN signal. means FLIN+FRIN signal. mono-to-stereo conversion. example, M(R) indicates processed RLIN+RRIN signal. localization. Qx(FL) means localized front left input signal. localization. Q1(RL) means localized rear left input signal. SUBIN always connected both FLOUT FROUT.
Ref: QS7777R1.DOC Rev: 1.00
QS7777 Data Sheet Preliminary QSound Labs, Inc.
Date: 11/17/99 Page
QS7777CF/QS7777PF
QSurround3D Virtual Audio Processor Dolby AC-3 Prologic Device Specifications Preliminary Information
SPREAD control function SPREAD provides control QSurround process signals FLOUT FROUT. effect provided this control illustrated with sound source image following drawing.
PSAVE Setting PSAVE=H (logical high) makes chip stand-by mode. this mode, chip consumes only small current noted specification, only digital interface active there audio output regardless other control setting. MUTE Setting MUTE=H PSAVE=L disables audio output regardless other control setting.
Ref: QS7777R1.DOC Rev: 1.00
QS7777 Data Sheet Preliminary QSound Labs, Inc.
Date: 11/17/99 Page
QS7777CF/QS7777PF
QSurround3D Virtual Audio Processor Dolby AC-3 Prologic Device Specifications Preliminary Information
Application (QS7777PF):
Ref: QS7777R1.DOC Rev: 1.00
QS7777 Data Sheet Preliminary QSound Labs, Inc.
Date: 11/17/99 Page
QS7777CF/QS7777PF
QSurround3D Virtual Audio Processor Dolby AC-3 Prologic Device Specifications Preliminary Information
Application (QS7777CF):
"Dolby" trademark Dolby Laboratories. Copyright 1997, QSound Labs, Inc. rights reserved. QSOUND logo registered trademarks QSound Labs, Inc. QSound protected under patent Nos. 5,105,462 5,208,860 foreign counterparts.
Ref: QS7777R1.DOC Rev: 1.00
QS7777 Data Sheet Preliminary QSound Labs, Inc.
Date: 11/17/99 Page

QSurround3D Virtual Audio Processor Dolby AC-3 Prologic Device Specifi

Top Searches for this datasheet

Other recent searches