參數(shù)資料
型號(hào): L9312
英文描述: Line Interface and Line Access Circuit Forward Battery SLIC and Ringing Relay for TR-57 Applications
中文描述: 線(xiàn)路接口和線(xiàn)路接入電路轉(zhuǎn)發(fā)電池SLIC和振鈴繼電器的訓(xùn)練班- 57應(yīng)用
文件頁(yè)數(shù): 36/40頁(yè)
文件大小: 709K
代理商: L9312
Data Sheet
July 2001
Forward Battery SLIC and Ringing Relay for TR-57 Applications
L9312 Line Interface and Line Access Circuit
36
Agere Systems Inc.
ac Applications
(continued)
First-Generation Codec ac Interface Network: Resistive Termination
(continued)
Example 1, Real Termination
(continued)
12-3521h (F)
Notes:
Termination impedance = 600
.
Hybrid balance = 600
.
Tx = 0 dBm.
Rx = 0 dBm.
Figure 15. Agere T7504 First-Generation Codec Resistive Termination, Single Battery Operation
R
G1
FUSIBLE
OR PTC
50
C
VBAT1
0.1
F
V
BAT1
RCVN
RTS
L9312
(GAIN OF 8)
V
BAT
C
F2
0.015
μ
F
LCF
VTX
RCVP
R
140 k
R
RCV
100 k
R
HB1
100 k
VFXIN
R
X
100 k
GSX
V
FRO
DX
DR
FSE
FSEP
MCLK
ASEL
1/4 T7504
CODEC
CONTROL
INPUTS
PCM
HIGHWAY
SYNC
AND
CLOCK
+
ITR
C
RTI
0.1
μ
F
AGND
V
DD
+2.4 V
C
C2
0.1
μ
F
R
28.3 k
R
43.2 k
1 M
50
R
RING
T
RING
100 V—130 V
SECONDARY
PROTECTOR
FUSIBLE
OR PTC
R
RTF
400
RINGING
SOURCE
C
CC
0.1
μ
F
V
CC
C
DD
0.1
μ
F
V
DD
A
D
C
TX
0.15
μ
F
R
6.34 k
C
C1
0.33
μ
F
R
T6
49.9 k
RSW
PT
PWR
V
BAT2
/
V
CC
BGND
V
BAT1
DGND
TXI
VITR
180 V—330 V
SECONDARY
PROTECTOR
B2
B1
B0
CF2
MULTIPLEXED
DATA BUS
TO/FROM
MICROPROCESSOR
PER-LINE
TO/FROM
MICROPROCESSOR
PR
NSTAT
RESET
LATCH
LCTH (10 mA)
V
PROG
(I
LIMIT
= 25 mA)
V
REF
R
VPROG
23.2 k
R
VREF
86.7 k
R
LCTH
59 k
OVH (5.5 V
OH
)
V
REF
V
REF
CF1
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