Marantz SR-12S1 Service Manual page 42

QU50 : HIN202ECB
Pin Assignment
HIN202E (PDIP, SOIC)
TOP VIEW
1
C1+
2
V+
3
C1-
4
C2+
5
C2-
6
V-
7
T2
OUT
8
R2
IN
Pin Descriptions
PIN
V Power Supply Input 5V 10%, (5V 5% HIN207E).
CC
V+ Internally generated positive supply (+10V nominal).
V- Internally generated negative supply (-10V nominal).
GND Ground Lead. Connect to 0V.
C1+ External capacitor (+ terminal) is connected to this lead.
C1- External capacitor (- terminal) is connected to this lead.
C2+ External capacitor (+ terminal) is connected to this lead.
C2- External capacitor (- terminal) is connected to this lead.
Transmitter Inputs. These leads accept TTL/CMOS levels. An internal 400k pull-up resistor to V
T
IN
T Transmitter Outputs. These are RS-232 levels (nominally 10V).
OUT
R Receiver Inputs. These inputs accept RS-232 input levels. An internal 5k pull-down resistor to GND is connected to each input.
IN
R Receiver Outputs. These are TTL/CMOS levels.
OUT
EN Enable Input. This is an active low input which enables the receiver outputs. With EN = 5V, the outputs are placed in a high
impedance state.
SD, SD Shutdown Input. With SD = 5V (HIN213E SD = 0V), the charge pump is disabled, the receiver outputs are in a high impedance
state (except R4 and R5 of HIN241E) and the transmitters are shut off.
NC No Connect. No connections are made to these leads.
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0.1 F
0.1 F
16
V
CC
15
GND
14
T1
OUT
T1
13
R1
IN
12
R1
OUT
T2
11
T1
IN
10
T2
IN
R1
OUT
9
R2
OUT
R2
OUT
FUNCTION
58
+5V
16
V
1
CC
C1+
+
+5V TO 10V
3
VOLTAGE INVERTER
C1-
4
C2+
+
+10V TO -10V
5
VOLTAGE INVERTER
C2-
+5V
T1
400k
11
IN
+5V T2
10 400k
IN
12
5k
R1
9
5k
R2
GND
15
CC
0.1 F
+
2
V+
6
V-
0.1 F
+
14
T1
OUT
7
T2
OUT
13
R1
IN
8
R2
IN
is connected to each lead.