QS7785CF View Datasheet(PDF) - Nippon Precision Circuits
Part Name
Description
View to exact match
QS7785CF Datasheet PDF : 15 Pages
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QS7785PF/CF
AC Characteristics
VCC = 9V, VDD = 5V, GND = 0V, Ta = 25°C
Parameter
Symbol
Condition
Rating
min
typ
max
Bypass-mode maximum input voltage
VB
BYP = SUR = HIGH, MONO = SP = LOW,
LIN = RIN, f = 1kHz
1.7
2.3
–
Qsurround enhanced-mode
maximum input voltage
VQ+
BYP = MONO = SUR = LOW, SP = HIGH,
LIN = RIN, f = 1kHz
1.8
2.4
–
Qsurround-mode maximum input
voltage (surround speakers on)
VQS
BYP = MONO = SP = LOW, SUR = HIGH,
LIN = RIN, f = 1kHz
1.3
1.7
–
Mono/stereo conversion enhanced
mode maximum input voltage
VM+
BYP = SUR = LOW, MONO = SP = HIGH,
LIN = RIN, f = 1kHz
0.8
1.0
–
Mono/stereo conversion mode
maximum input voltage (surround
speakers on)
VMS
BYP = SP = LOW, MONO = SUR = HIGH,
LIN = RIN, f = 1kHz
0.8
1.0
–
Bypass gain
G BYP1
BYP = HIGH, MONO = SUR = SP = LOW,
LIN to FLOUT, RIN to FROUT, f = 1kHz
−2
0
2
Bypass gain (surround speakers on)
G BYP2
BYP = SUR = HIGH, MONO = SP = LOW,
LIN to SLOUT, RIN to SROUT, f = 1kHz
−2
0
2
Qsurround mode gain
GQ
BYP = MONO = SUR = SP = LOW, LIN to
FLOUT, RIN to FROUT, f = 1kHz
3.9
5.9
7.9
Qsurround mode crosstalk gain
G QX
BYP = MONO = SUR = SP = LOW, LIN to
FROUT, RIN to FLOUT, f = 1kHz
−1.5
0.5
2.5
Qsurround mode gain (surround)
G QS
BYP = MONO = SP = LOW, SUR = HIGH,
LIN to SLOUT, RIN to SROUT, f = 1kHz
−2.3
−0.3
1.7
Qsurround mode crosstalk gain
(surround)
GQXS
BYP = MONO = SP = LOW, SUR = HIGH,
LIN to SROUT, RIN to SLOUT, f = 1kHz
−1.9
0.1
2.1
Qsurround enhanced mode gain
G Q+
BYP = MONO = SUR = LOW, SP = HIGH,
LIN to FLOUT, RIN to FROUT, f = 1kHz
4.7
6.7
8.7
Qsurround enhanced mode crosstalk
gain
GQX+
BYP = MONO = SUR = LOW, SP = HIGH,
LIN to FROUT, RIN to FLOUT, f = 1kHz
1.3
3.3
5.3
Mono/stereo conversion mode left-
channel gain
GML
BYP = SUR = SP = LOW, MONO = HIGH,
LIN = RIN, FLOUT, f = 1kHz
2.6
4.6
6.6
Mono/stereo conversion mode right-
channel gain
GMR
BYP = SUR = SP = LOW, MONO = HIGH,
LIN = RIN, FROUT, f = 1kHz
3.6
5.6
7.6
Mono/stereo conversion enhanced
mode left-channel gain
GML+
BYP = SUR = LOW, MONO = SP = HIGH,
LIN = RIN, FLOUT, f = 1kHz
2.4
4.4
6.4
Mono/stereo conversion enhanced
mode right-channel gain
GMR+
BYP = SUR = LOW, MONO = SP = HIGH,
LIN = RIN, FROUT, f = 1kHz
3.3
5.3
7.3
Mono/stereo conversion mode
surround left-channel gain
GMSL
BYP = SP = LOW, MONO = SUR = HIGH,
LIN = RIN, SLOUT, f = 1kHz
−3.8
−1.8
0.2
Mono/stereo conversion mode
surround right-channel gain
GMSR
BYP = SP = LOW, MONO = SUR = HIGH,
LIN = RIN, SROUT, f = 1kHz
−1.6
0.4
2.4
SCL clock pulse period
SCL clock HIGH-level pulsewidth
SCL clock LOW-level pulsewidth
SDA setup time
SDA hold time
STRB setup time
STRB pulsewidth
STRB hold time
t0
QS7785PF
t1
QS7785PF
t2
QS7785PF
t3
QS7785PF
t4
QS7785PF
t5
QS7785PF
t6
QS7785PF
t7
QS7785PF
100
–
–
40
–
–
40
–
–
15
–
–
30
–
–
50
–
–
100
–
–
50
–
–
Unit
V RMS
V RMS
V RMS
V RMS
V RMS
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ns
ns
ns
ns
ns
ns
ns
ns
NIPPON PRECISION CIRCUITS—6
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