UPC7073GT NEC [NEC], UPC7073GT Datasheet - Page 5

• Manufacturer Part Number: UPC7073GT
• Description: UPC7073 ANALOG SUBSCRIBER LINE LSI BS-SLIC
• Manufacturer: NEC [NEC]

1. PIN FUNCTIONS
1-3
4, 5
6
7
8
9
10
11
12-14, 16,
26, 28, 30,
39, 41, 43
15
17
18
19
20
21
22
23
24
25
27
29
31
32
33
34
35
36
37
38
40
42
Number
DC
DC
BB
ASCN
AGDT
BIAS
R
ACOM
NC
GND1
PD
ALM
BCUT
RC
RC
RC
V
T
RY
RY
RY
GND2
R
OP
OP
T
C
T
T
T
R
EF
X
B
E
S
BB
X
EF
DC
S
Pin Name
OUT
1
2
3
OUT1
IN1
1
2
3
IN+
IN–
, DC
-DC
IN2
OUT3
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
O
O
O
–
–
–
–
–
I
I
I
I
I
I
I
I
I
I
I
I
DC feedback control output
DC feedback control input
V
Tip-Ring difference current detection signal output
Tip-Ring sum current detection signal output
Bias level input. Connect to PD9903’s A
Receiving input for 4W side
Signal reference voltage (2.4 V TYP) input for 4W side [to the PD9903’s pin 37, 38]
No-connection pins. Leave these pins unconnected.
Ground pin 1, for circuit grounding
Power-down control
H: Power-up
L: Power-down
Ground-fault/power line contact protection mode select input
H: Protect mode
L: Normal feed
Feed-out select input
H: Feed-out
L: Normal feed
Relay control for ringer transmission, high active
Relay control for line test, high active
Relay control for network test, high active
Negative power supply (–48 V)
Feed resistor pin connection for Tip side during ground-fault/power line contact
detection
Relay control for ringer transmission, open collector
Relay control for line testing, open collector
Relay control for network testing, open collector
Ground pin 2, relay driver
Ring feed resistor pin connection for ground-fault/power line contact detection
TTX (Teletax) signal cancel circuit input pin (+)
TTX signal cancel circuit input pin (–)
Transmission output for 4W side. Connect with BIAS pin via C
Connect to DC feedback capacitor
Connect C
Tip-side auxiliary power transistor base connection pin
Tip-side feed amplifier output pin. Connect with T
Tip pin for 2W side
Ring pin for 2W side
BB
voltage information output
DC
capacitor to this pin
TTL level
TTL level
TTL level
Function
IN
pin
S
pin via R
[to the PD9903’s pin 48-46]
[to the PD9903’s pin 45, 44]
[to the PD9903’s pin 43]
[to the PD9903’s pin 41]
[to the PD9903’s pin 40]
[to the PD9903’s pin 39]
[to the PD9903’s pin 32]
[to the PD9903’s pin 31]
[to the PD9903’s pin 30]
[to the PD9903’s pin 29]
[to the PD9903’s pin 28]
[to the PD9903’s pin 27]
[to the PD9903’s pin 42]
FT
AC
resistor.
capacitor.
PC7073
5