QS7785 Ver la hoja de datos (PDF) - Nippon Precision Circuits
Número de pieza
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QS7785 Datasheet PDF : 15 Pages
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QS7785PF/CF
Speaker Arrangement
The QS7785PF/CF supports the following speaker arrangements.
37 RIN SROUT 24
38 LIN FROUT 26
CIN 21
COUT 22
FLOUT 25
SLOUT 23
Front
Speakers
Rear
Speakers
37 RIN SROUT 24
38 LIN FROUT 26
CIN 21
COUT 22
FLOUT 25
SLOUT 23
Type A. Two front speakers in front and two surround
speakers in rear
Type B. Front speakers and surround speakers in
front
37 RIN SROUT 24
38 LIN FROUT 26
CIN 21
COUT 22
FLOUT 25
SLOUT 23
37 RIN SROUT 24
38 LIN FROUT 26
CIN 21
COUT 22
FLOUT 25
SLOUT 23
Type C. Front speakers and surround speakers in
front with actual center speaker
Type D. Front speakers and surround speakers in
front with center
Type A
The front speakers are placed in front and the sur-
round speakers are placed behind the audience to
create a full rich enhanced space. Since the output
signal for each channel has undergone Qsurround
processing, the audio enhancement can be reduced to
an adequate level even for television and similar sig-
nals where the left and right channels are located
close to each other.
Type B
The front speakers and surround speakers are both
placed in front of the audience, perhaps because it is
not possible to place speakers behind the audience. If
the surround speakers are turned to face outwards, to
spread the surround signal, the surround effect can
be obtained.
Type C
A center speaker can be added in the center to repro-
duce vocal and speech signals for easy listening. The
center signal is output on COUT. The signal is com-
prised of LIN and RIN signals, producing a sound
image in the center.
Type D
If a center speaker is not available or not required,
COUT can be connected to CIN using a resistor and
the center signal is then added to the front-channel
signal. The presence of the center signal added to the
front channels reproduces the center signal sound
image with virtually the same effect as that obtained
using a center speaker. The connection using a resis-
tor can be utilized for voice and similar fixed-band
signals. See “Center Control” for a description of the
method.
NIPPON PRECISION CIRCUITS—10
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