Marantz SR-12N1G, Service Manual

Page: 42 / 76

58
HIN202E (PDIP, SOIC)
TOP VIEW
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
C1+
V+
C1-
C2+
C2-
R2IN
T2OUT
VCC
T1OUT
R1IN
R1OUT
T1IN
T2IN
R2OUT
GND
V-
VCC
+5V
2
V+
16
T1OUT
T2OUT
T1IN
T2IN
T1
T2
11
10
14
7
+5V
400k
+5V
400k
R1OUT
R1IN
R1
13 12
5k
R2OUT
R2IN
R2
8 9
5k
+10V TO -10V
VOLTAGE INVERTER
0.1 F
6
V-
C2+
C2-
+
0.1 F
4
5
+5V TO 10V
VOLTAGE INVERTER
C1+
C1-
+
0.1 F
1
3
+
0.1 F
+
GND
15
Pin Descriptions
Pin Assignment
PIN FUNCTION
V
CC
Power Supply Input 5V 10%, (5V 5% HIN207E).
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.
T
IN
Transmitter Inputs. These leads accept TTL/CMOS levels. An internal 400k pull-up resistor to V
CC
is connected to each lead.
T
OUT
Transmitter Outputs. These are RS-232 levels (nominally 10V).
R
IN
Receiver Inputs. These inputs accept RS-232 input levels. An internal 5k pull-down resistor to GND is connected to each input.
R
OUT
Receiver Outputs. These are TTL/CMOS levels.
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.
QU50 : HIN202ECB