參數(shù)資料
型號(hào): L9214A
英文描述: CAP CER 220PF 3.15KVDC R3 RAD
中文描述: 低成本振鈴用戶接口
文件頁(yè)數(shù): 38/46頁(yè)
文件大?。?/td> 790K
代理商: L9214A
Preliminary Data Sheet
October 2001
Low-Cost Ringing SLIC
L9214A/G
38
Agere Systems Inc.
ac Applications
(continued)
Design Examples
(continued)
ac Interface Using First-Generation Codec
(continued)
12-3535.m (F)
Figure 17. Agere T7504 First-Generation Codec; Complex Termination with Power Control Resistor (3 REN
Configuration)
Table 21. L9214 Parts List for Agere T7504 First-Generation Codec; Complex Termination with Power
Control Resistor
Name
Fault Protection
R
PT
Value
Tolerance
Rating
Function
30
1%
Fusible or
PTC
Fusible or
PTC
Protection resistor.
R
PR
30
1%
Protection resistor.
Protector
Agere
L7591
Secondary protection.
V
BAT1
BGND
V
BAT2
V
CC
AGND
ICM TRGDET
ground key
not used
C
VBAT1
0.1
μ
F
C
VBAT2
0.1
μ
F
C
CC
0.1
μ
F
PR
PT
AGERE
L7591
V
BAT1
FUSIBLE RESISTOR
OR PTC
30
VITR
RCVP
RCVN
ITR
VTX
TXI
R
4750
R
TGS
1.74
k
C
12 nF
V
BAT1
V
CC
C
TX
0.1
μ
F
1/4 T7504
CODEC
R
T6
GSX
+2.4 V
R
113 k
R
49.9 k
R
RCV
59.0 k
C
R
54.9 k
DX
DR
FSE
FSEP
MCLK
ASEL
CONTROL
INPUTS
SYNC
AND
CLOCK
PCM
HIGHWAY
R
47.5 k
+
30
C
C2
0.1
μ
F
L9214A
C
C1
0.1
μ
F
CF1
CF2
FB1
FB2
NSTAT B3 B2 B1 B0
C
F1
0.22
μ
F
C
F2
0.1
μ
F
FROM/TO CONTROL
FUSIBLE RESISTOR
OR PTC
127 k
R
N1
120 pF
40.6 k
C
0.01
μ
F
C
0.01
μ
F
RTFLT
DCOUT
I
PROG
(I
LOOP
= 25 mA)
I
REF
R
RT2
75 k
R
RT1
133 k
C
RT
1
μ
F
R
IPROG
5.76 k
R
IREF
28.7 k
VF
X
IN
R
X
115
k
VF
R
O
R
PWR
2.0 k
D
BAT1
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