UPC1853 NEC, UPC1853 Datasheet - Page 74

• Manufacturer Part Number: UPC1853
• Description: MATRIX SURROUND IC WITH I2C BUS
• Manufacturer: NEC

7. MEASURING CIRCUIT
74
Note
0.082
Recommended external parts.
Carbon-film resistor :
Film capacitor
Ceramic capacitor :
Use external parts as follows unless otherwise
specified.
Carbon-film resistor :
Film capacitor
Electrolytic capacitor :
AGND
F
30
1
820 k
AGND
MFI
Note
29
2
Note
0.1
Note
MFO
FC1
Switch 2
F
28
3
2200 pF
680 pF
Note
Note
LF1
FC2
:
a b
:
+
27
4
22
0.022
1 %
1 %
1 %
Note
5 %
20 %
20 %
Rin
FC3
F
L, R channel
signal input
+
26
F
b
5
22
0.022
Switch 1
Note
Lin
FC4
a
F
+
F
25
6
22
1000 pF 6800 pF
OFC
Note
LF2
F
+
24
7
DGND
22
1/2 V
Note
RTC
PC1853CT
F
CC
Attention on Printed Wiring
1. AGND: Wide area grounding.
2. Connect terminating resistors as near pins 26 and 27
3. Make the wiring of I
4. Connect by-pass capacitor near pin 15 (V
23
8
DGND ADS
0.1
Note
RBC
as possible.
wiring of analog block.
DV
b
F
22
DD
9
6800 pF
Switch 3
Note
LTC
(+5 V)
a
10
21
DGND SDA SCL
Note
0.1
SDA
LBC Rear OUT
I
2
F
Rear
output
C bus
20
11
SCL
2
C bus block distant from the
L+R
signal
output
+
19
12
3.3
L+R OUT R1 OUT L1 OUT
BAL-C
(RVC)
R-
channel
signal1
output
F
+
18
13
L channel
signal 2
output
3.3
VOL-C
(LVC)
F
L-
channel
signal1
output
17
14
0.01
L2 OUT
47
R channel
signal 2 output
+
CC
F
16
F
15
pin).
V
AV
R2 OUT
CC
PC1853
CC
(+12 V)