Pioneer SD-533HD5 Service Manual page 164

SD533H5, SD-643HD5
Pin Pin
Symbol
No. voltage
33
SCL
34 SDA
36 DC OUT
55 TRAP1 3.8V
48 MUTE
50 BIAS 4.5V
164
Equivalent circuit
—
33
—
34
V
CC
4k
—
36
V
CC
100
55
V
CC
147
—
48
V V
CC CC
20k
50
20k
V
CC
4k
10k
V
CC
4k
1k
Q1
28k
1k
72k
28k
V
CC
147
Description
2
I C bus signal input
V max = 1.5V
IL
V min = 3.0V
IH
2
I C bus signal input
V max = 1.5V
IL
V min = 3.0V
IH
V max = 0.4V
OL
Outputs the S2-compatible DC
superimposed onto the COUT2
output. The DC is superimposed by
connecting this pin to the COUT2
output via a capacitor.
Control is performed by the I
When 0V is output, Q1 is ON and
the impedance is 5kΩ.
S2 protocol output DC impedance of
10 ± 3kΩ is realized by attaching
external resistance of 4.7kΩ.
DC OUT (bus) Output DC
0 4.5V
1 0V
2 1.9V
3 4.5V
Connects trap circuit for subcarrier.
Audio signal output mute.
Mute OFF at 1.5V or less
Mute ON at 2.5V or more
Mute OFF when open
Internal reference bias (Vcc/2).
Connects to GND via a capacitor.
2
C bus.