Preliminary Data Sheet
September 2001
L9500A
High-Voltage Ringing SLIC for VoIP Applications
Pin Information
NSTAT
RCVN
RCVP
VITR
VTX
4
RING
INN
5
3
2
1
28
27
26
25
B0
ITR
TXI
RING
INP
6
24
B1
DCOUT
7
L9500
28-PIN PLCC
PINOUT
23
B2
CF2
8
22
PR
CF1
9
21
PT
RTFLT
10
20
FB1
V
REF
11
12
AGND
13
V
CC
14
V
BAT1
15
V
BAT2
16
BGND
17
NC
18
V
PROG
19
FB2
12-3558e
Figure 2. 28-pin PLCC Diagram
RCVP
NSTAT
RCVN
VITR
VTX
TXI
ITR
NC
48 47 46 45 44 43
RING
INN
RING
INP
NC
NC
NC
DCOUT
NC
CF2
NC
CF1
NC
RTFLT
1
2
3
4
5
6
7
8
9
10
11
12
NC
42 41 40 39 38 37
36
35
34
33
32
NC
B0
B1
B2
NC
PR
NC
NC
PT
NC
FB1
FB2
L9500
48-PIN MLCC
PINOUT
NC
NC
NC
31
30
29
28
27
26
25
V
PROG
13 14 15 16 17 18 19 20 21
V
BAT1
AGND
V
BAT2
NC
NC
NC
NC
V
REF
V
CC
22 23 24
BGND
NC
12-3361.b
Figure 3. 48-pin MLF Diagram
Agere Systems Inc.
7