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參數(shù)資料
| 型號(hào)： | QS7779CM |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | 3D Stereo Enhancement and 3D Virtual Stereo Surround with Dolby Pro Logic and Mixed DVD (AC-3) Decoder |
| 中文描述： | 3D立體聲增強(qiáng)和3D虛擬環(huán)繞立體聲和杜比定向邏輯及混合影碟（交流- 3）解碼器 |
| 文件頁(yè)數(shù)： | 8/11頁(yè) |
| 文件大?。?/td> | 114K |
| 代理商： | QS7779CM |
QS7779PM/CM
NIPPON PRECISION CIRCUITS—8
FUNCTIONAL DESCRIPTION
Operating Mode
This chip can be set to a desired operating mode by
control pins for the parallel interface (P/S pin sets to
HIGH) or control bits for the serial interface (P/S pin
sets to LOW). The control pins or bits configurations
are shown in the following table.
Note1.
Note2. MUTE = 1 when PSAVE = 1
×
: Don’t care.
Mode description
Center signal output
CIN and COUT are used to emphasize the center signal.
How to use CIN and COUT.
I
Connect CIN and COUT with a resistor to make
the center signal emphasized.
Input resistance for CIN is 5k
necting a 5k
resistor between CIN and COUT
makes output of (RIN+LIN)/2 to ROUT and
LOUT.
I
Directly connecting CIN and COUT makes ROUT
and LOUT output (RIN+LIN).
I
. For example, con-
Mode
No.
Control Pins/Bits
Operation
(Output signal)
Description
BYP
SPRD
MUTE
PSAV
E
LOUT
ROUT
1
1
×
0
0
LIN
RIN
Bypass mode
2
0
0
0
0
QX(LIN)
QX(RIN)
Stereo enhanced and virtual surround mode with lower enhanced
level
3
0
1
0
0
QX+(LIN)
QX+(RIN)
Stereo enhanced and virtual surround mode with higher enhanced
level
4
×
×
1
0
–
–
Mute mode
5
×
×
1
1
–
–
Power save mode. This function is available with serial interface only
Mode No.
Operating description
1
Bypass mode. Outputs the stereo signal as it is input.
2
Stereo Enhanced and virtual surround mode with lower enhanced level. The Dolby Surround Pro Logic signal (Lt, Rt) input. Available
Surround Effect with two speakers by Qsurround technology. Virtual location of each signal is;
The Front signal: Virtually outside of the speakers.
The Rear signal: Virtually behind the listeners.
3
Stereo Enhanced and virtual surround mode with higher enhanced level. The Dolby Surround Pro Logic signal (Lt, Rt) input. Available
Surround Effect with two speakers by Qsurround technology. This mode outputs the signals much more spread sound than Mode 2.
4
Mute mode. No signal at output pins.
5
Power save mode. This function is available with serial interface only.
Pin
Description
CIN
Outputs the doubled signal to ROUT and LOUT always.
COUT
Outputs the half level of signal ((RIN+LIN)/2).
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| QS7779 | |
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| QS7785PF | 3D 2/4-Channel Stereo Surround Synthesizer |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| QS7779PM | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:3D Stereo Enhancement and 3D Virtual Stereo Surround with Dolby Pro Logic and Mixed DVD (AC-3) Decoder |
| QS7785 | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:3D 2/4-Channel Stereo Surround Synthesizer |
| QS7785CF | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:3D 2/4-Channel Stereo Surround Synthesizer |
| QS7785P/C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:3D 2/4-Channel Stereo Surround Synthesizer |
| QS7785PF | 制造商:NPC 制造商全稱:Nippon Precision Circuits Inc 功能描述:3D 2/4-Channel Stereo Surround Synthesizer |
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