参数资料
型号: LUCL9219GAR-DT
英文描述: Low-Cost Line Interface with Reverse Battery and Dual Current Limit
中文描述: 低成本线接口,具有反向电池和双电流限制
文件页数: 9/30页
文件大小: 397K
代理商: LUCL9219GAR-DT
Agere Systems Inc.
17
Data Sheet
November 2001
with Reverse Battery and Dual Current Limit
L9219A/G Low-Cost Line Interface
Applications (continued)
A basic loop start reference circuit, using bused ringing with the L9219 SLIC and the T8536 third-generation codec,
is shown in Figure 12.
Figure 12. Basic Loop Start Application Circuit Using T8536-Type Codec
RPROG
35.7 k
RLCTH
22.1 k
RPT
50
L7591
RPR
PT
18
1
7
LCTH
8
DCOUT
50
PR
10
RTSP
20
RTS1
510
RTSN
19
RTSN
3.4 M
VRING
VBAT
CF2
11
CF1
12
CF1
0.47
F
AGND
16
BGND
17
L9219
SLIC
CRTS1
0.015
F
RTSP
2.94 M
CF2
0.1
F
RCVN
NSTAT
6
DR2
FS
BCLK
1/4 T8536
PCM
HIGHWAY
CONTROL
AND
CLOCK
B0
B1
15
14
RCVP
5
VFRON
VFXI
VFROP
SLIC0a
SLIC3a
SLIC2a
DGND
DX1
DX2
DR1
CVDD
0.1
F
VDD
CODEC
B2
13
SLIC4a
22
VITR
23
TIP
RING
EMR
VBAT
9
CBAT
0.1
F
VBAT
TXI
24
VTX
25
TG
26
CB
0.1
F
RGP1
8.06 k
CB1
0.1
F
TXI
IPROG
VCC
4
CCC
0.1
F
VCC
LCAS
RCIN
20 M
12-3561 (F).d
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