µPC1857A
Pin Number
9
Pin Name
LTC
Table 1-1. Pin Function List (3/7)
Equivalent Circuit
VCC
3k
3k
12 k
VCC
Description
Connection pin for capacitor for
treble boost/cut frequency
characteristic of L-channel signal.
Pin voltage: approx. 6.0 V
10
LBC
9
3300 pF
VCC
3k
3k
13.8 k
VCC
Connection pin for capacitor for
bass boost/cut frequency
characteristic of L-channel signal.
Pin voltage: approx. 6.0 V
10
0.047 µ F
11
OFR1
VCC
5k
VCC
6k
6k
Pin that absorbs offset voltage of R
channel.
Pin voltage: approx. 6.0 V
11
5k
+
5k
12
OFR2
2.2 µF VCC
1/2VCC 3 k
3k
60 k
12
Remark Pin voltage is the reference value when VCC = 12 V.
9