LUCL9219AAR-D AGERE [Agere Systems], LUCL9219AAR-D Datasheet - Page 5

• Manufacturer Part Number: LUCL9219AAR-D
• Description: Low-Cost Line Interface with Reverse Battery and Dual Current Limit
• Manufacturer: AGERE [Agere Systems]

Data Sheet
November 2001
Agere Systems Inc.
Pin Information
Table 1. Pin Descriptions (continued)
PLCC
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
7
8
9
Symbol
DCOUT
NSTAT
AGND
BGND
RTSN
RTSP
LCTH
VITR
V
VTX
TSD
CF2
CF1
TXI
PR
NC
TG
NC
B2
B1
B0
PT
BAT
Type
(continued)
I/O
I/O
—
—
—
—
—
—
—
—
O
O
O
O
O
I
I
I
I
I
I
I
Loop Closure Threshold Input. Connect a resistor to DCOUT to set off-hook
threshold.
dc Output Voltage. This output is a voltage that is directly proportional to the abso-
lute value of the differential tip/ring current.
Battery Supply. Negative high-voltage power supply.
Protected Ring. The output of the ring driver amplifier and input to loop sensing cir-
cuitry. Connect to the loop through overvoltage protection.
Filter Capacitor 2. Connect a 0.1 F capacitor from this pin to AGND.
Filter Capacitor 1. Connect a 0.47 F capacitor from this pin to pin CF2.
State Control Input. B0, B1, and B2 determine the state of the SLIC. See Table 2.
Pin B2 has internal pull-down.
State Control Input. B0, B1, and B2 determine the state of the SLIC. See Table 2.
Pin B1 has internal pull-down.
State Control Input. B0, B1, and B2 determine the state of the SLIC. See Table 2.
Pin B0 has internal pull-down.
Analog Signal Ground.
Battery Ground. Ground return for the battery supply.
Protected Tip. The output of the tip driver amplifier and input to loop sensing cir-
cuitry. Connect to loop through overvoltage protection.
Ring Trip Sense Negative. Connect this pin to the ringing generator signal through a
high-value resistor.
Ring Trip Sense Positive. Connect this pin to the ring relay and the ringer series
resistor through a high-value resistor.
No Connect.
Ring Trip Detector Output/Loop Detector Output. When low, this logic output indi-
cates that ringing is tripped or that an off-hook condition exists.
ac Output Voltage. The voltage at this point is directly proportional to the differential
tip/ring current.
ac/dc Separation. Connect a 0.1 F capacitor from this point to VTX.
ac and dc Output Voltage. This output is a voltage that is directly proportional to the
differential tip/ring current.
Transmit Gain. Connect an 8.06 k from TG to VTX to set the transmit gain of the
SLIC.
Thermal Shutdown. When high, this logic output indicates the device is in thermal
shutdown.
No Connect.
with Reverse Battery and Dual Current Limit
Description
L9219A/G Low-Cost Line Interface
5