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參數(shù)資料
型號: L9216A
英文描述: CAP CER 270PF 3.15KVDC R3 RAD
中文描述: 短環(huán)振鈴用戶接口與地面開始
文件頁數(shù): 40/48頁
文件大小: 1062K
代理商: L9216A
Preliminary Data Sheet
September 2001
Short-Loop Ringing SLIC with Ground Start
L9216A/G
40
Agere Systems Inc.
ac Applications
(continued)
Design Examples
(continued)
Blocking Capacitors
5-6401.M (F)
Figure 25. ac Interface Using First-Generation Codec (Including Blocking Capacitors) for Complex Termi-
nation Impedance
Figure 26. Agere T7504 First-Generation Codec Complex Termination
0.1
μ
F
R
TGS
VTX
R
GX
=
4750
TXI
VITR
R
T6
R
x
R
T3
R
HB
CODEC
OUTPUT
DRIVE
AMP
CODEC
OP AMP
+
20
C
N
R
N1
R
N2
R
GP
R
RCV
–I
T/R
318.25
C
GS
C
B1
2.5 V
C
B2
RCVN
RCVP
V
BAT1
BGND
V
BAT2
V
CC
AGND
ICM
RGDET
ground key
not used
C
BAT1
0.1
μ
F
C
BAT2
0.1
μ
F
C
CC
0.1
μ
F
RTFLT
DCOUT
PR
PT
C
RT
0.1
μ
F
R
RT
383 k
AGERE
L7591
V
BAT1
FUSIBLE
OR PTC
30
rate of battery
reversal not
ramped
FB1 FB2
VITR
RCVP
RCVN
ITR
VTX
TXI
R
4750
R
TGS
1.74 k
C
GS
12 nF
V
BAT1
D
BAT1
V
BAT2
V
CC
C
TX
0.1
μ
F
R
T6
R
113 k
R
49.9 k
R
RCV
59.0 k
C
R
54.9 k
V
REF
R
47.5 k
V
REF
30
C
C2
0.1
μ
F
L9216A
C
C1
0.1
μ
F
CF1
CF2
NSTAT
B2
B1
B0
C
F1
0.22
μ
F
C
F2
0.1
μ
F
RING
IN
C
0.47
μ
F
FROM/TO CONTROL
RING
FUSIBLE
OR PTC
127
k
R
N1
120 pF
40.6 k
V
REF
R
X
VFXIN
DX
+2.4
+
GSX
VFRO
1/4 T7504
CODEC
PCM
HIGHWAY
SYNC
AND
CLOCK
CONTROL
INPUTS
DR
FSE
FSEP
MCLK
ASEL
V
PROG
115 k
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