Harman Kardon AVR 254, Service Manual

Page: 137 / 189

PIN CONFIGURATION
PIN DESCRIPTION
PIN No SYMBOL NAME AND F UNCTION
1 C
1
+ Positive Terminal for the first Charge Pump Capacitor
2 V+ Doubled Voltage Terminal
3 C
1
- Negative Terminal for the first Charge Pump Capacitor
4 C
2
+ Positive Terminal for the second Charge Pump Capacitor
5 C
2
- Negative Terminal for the second Charge Pump Capacitor
6 V- Inverted Voltage Terminal
7 T2
OUT
Second Transmitter Output Voltage
8 R2
IN
Second Receiver Input Voltage
9 R2
OUT
Second Receiver Output Voltage
10 T2
IN
Second Transmitter Input Voltage
11 T1
IN
First Transmitter Input Voltage
12 R1
OUT
First Receiver Output Voltage
13 R1
IN
First Receiver Input Voltage
14 T1
OUT
First Transmitter Output Voltage
15 GND Ground
16 V
CC
Supply Voltage
ABSOLUTE MAXIMUM RATINGS (Note 1)
Symbol Parameter Val ue Unit
V
CC
Supply Voltage -0.3 to 6 V
T
IN
Transmitter Input Voltage Range -0.3 to (V
CC
+ 0.3) V
R
IN
Receiver Input Voltage Range
±
30 V
T
OUT
Transmitter Output Voltage Range (V+ + 0.3) to (V- - 0.3) V
R
OUT
Receiver Output Voltage Range -0.3 to (V
CC
+ 0.3) V
T
SCTOUT
Short Circuit Duration on T
OUT
infinite
T
stg
Storage Temperature Range -65 to +150
o
C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.
Note1: No external supply can be applied toV+ terminal and V- terminal.
ST232
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AVR254
harman/kardon