QS7785PF/CF
DC Characteristics
VCC = 9V, VDD = 5V, GND = 0V, Ta = 25°C
Parameter
Analog input impedance
Reference voltage output
HIGH-level input voltage
LOW-level input voltage
Input leakage current
LOW-level output voltage
Supply voltage (analog)
Supply voltage (digital)
Current consumption (analog)
Current consumption (digital)
Standby current (analog)
Symbol
Condition
ZAIN1
ZAIN2
V REFOUT
V IH
V IL
ILEAK
IILOPD
VOL
V CC
V DD
I CC
I DD
I CCSAVE
LIN, RIN
CIN
Digital inputs, VDD input voltage
SDA, SCL, 10V input voltage
ACK signal output from SDA, 3mA sink
current
Rating
Unit
min
typ
max
16
20
24
kΩ
8
10
12
–
VCC/2
–
V
0.7VDD
–
–
V
–
–
0.3V DD
V
−3
–
−3
–
3
µA
3
0
–
0.4
V
5
–
13
V
4.5
–
5.5
V
–
6
8
mA
–
0.3
0.5
mA
–
0.1
0.2
mA
Noise and THD Characteristics
VCC = 9V, VDD = 5V, GND = 0V, Ta = 25°C
Parameter
Symbol
Condition
Rating
Unit
min
typ
max
Bypass noise voltage
N BYP
BYP = HIGH, SUR = MONO = SP = LOW,
“A”-wgt, FLOUT, FROUT
–
10
20
µV RMS
Qsurround noise voltage (front)
N QSF
SUR = SP = HIGH, BYP = MONO = LOW,
“A”-wgt, FLOUT, FROUT
–
20
40
µV RMS
Qsurround noise voltage (surround)
N QSR
SUR = SP = HIGH, BYP = MONO = LOW,
“A”-wgt, SLOUT, SROUT
–
15
30
µV RMS
Bypass total harmonic distortion
BYP = SUR = HIGH, MONO = SP = LOW,
THDB LIN = RIN = 1VRMS, f = 1kHz, FLOUT,
–
FROUT, SLOUT, SROUT
–
0.1
%
Qsurround mono total harmonic
distortion
BYP = LOW, SUR = MONO = SP = HIGH,
THDQM LIN = RIN = 1VRMS, f = 1kHz, FLOUT,
–
FROUT, SLOUT, SROUT
–
0.1
%
NIPPON PRECISION CIRCUITS—5