參數(shù)資料
型號： LUCL9311GP-D
英文描述： Line Interface and Line Access Circuit Full-Feature SLIC with High Longitudinal Balance, Ringing Relay,and GR-909 Test Access
中文描述： 線路接口和線路接入電路全功能用戶接口高縱向平衡，振鈴繼電器，和GR - 909測試訪問
文件頁數(shù)： 9/50頁
文件大?。?/td> 852K
代理商： LUCL9311GP-D
Data Sheet
July 2001
Ringing Relay, and GR-909 Test Access
L9311 Full-Feature SLIC with High Longitudinal Balance,
Agere Systems Inc.
9
Architecture
(continued)
12-3525c (F)
Figure 2. Test Diagram
V
REF
PT
PR
V
DD
V
DD
DGND
DGND
TESTLEV
66.7 k
+
–
TEST BLOCK
VITR
VTX
5 M
5 M
66.7 k
Pin Information
12-3522d (F)
Figure 3. 44-Pin PLCC
7
9
10
11
12
13
14
15
16
17
8
6
4
3
2
1 44 43 42 41 40
5
18
20 21 22 23 24 25 26 27 28
19
39
37
36
35
34
33
32
31
30
29
38
L9311AP
FB2
LCF
RPWR
V
BAT1
V
BAT1
BGND
TESTSIG
TIE A
′
TESTLEV
FB1
BGND
C
V
P
O
V
R
L
V
C
A
R
R
V
C
TXI
ITR
ICM
RGDET
DGND
V
DD
LATCH
RESET
B0
NC
VTX
N
R
R
P
P
T
N
B
B
B
R
Table 1. Pin Descriptions
Pin Symbol
1
LCTH
Type
I
Name/Function
Loop Closure Program Input.
Connect a voltage source or ground, via a resistor, to this
point to program the loop closure threshold.
SLIC Internal Reference Voltage.
Output of internal 2.35 V SLIC reference voltage.
Overhead Voltage Program Input.
Connect a voltage source to this point to program the
overhead voltage. Voltage source may be external or derived via a resistor divider from
V
REF
. A programmable external voltage source may be used to provide software control
of the overhead voltage. If a resistor or voltage source is not connected, the overhead
voltage will default to approximately 5.5 V (sufficient to pass 3.14 dBm in to 900
). If the
default overhead is desired, connect this pin to ground.
Current-Limit Program Input.
Connect a voltage source to this point to program the dc
current limit. Voltage source may be external or derived via a resistor divider from V
REF
. A
programmable external voltage source may be used to provide software control of the
loop closure threshold.
Filter Capacitor.
Connect a 0.1
μ
F capacitor from this node to ground for filtering.
Filter Capacitor.
Connect a capacitor from this node to OVH to control the rate of change
of the overhead voltage. If controlled overhead is not desired, leave this node open.
Polarity Reversal Slowdown Capacitor.
Connect a capacitor from this node to ground
to control the rate of battery reversal. If controlled battery reversal is not desired, leave
pin is open.
Polarity Reversal Slowdown Capacitor.
Connect a capacitor from this node to ground
to control the rate of battery reversal. If controlled battery reversal is not desired, leave
pin is open.
2
3
V
REF
OVH
O
I
4
V
PROG
I
5
6
CF2
CF1
—
—
7
FB2
—
8
FB1
—
相關(guān)PDF資料
PDF描述
LUCL9311GP0DT Line Interface and Line Access Circuit Full-Feature SLIC with High Longitudinal Balance, Ringing Relay,and GR-909 Test Access
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