參數(shù)資料
型號: LUCL9214GAJ-DT
英文描述: Low-Cost Ringing SLIC
中文描述: 低成本振鈴用戶接口
文件頁數(shù): 40/46頁
文件大小: 790K
代理商: LUCL9214GAJ-DT
Preliminary Data Sheet
October 2001
Low-Cost Ringing SLIC
L9214A/G
40
Agere Systems Inc.
ac Applications
(continued)
Design Examples
(continued)
Third-Generation Codec ac Interface Network
Complex Termination
The following reference circuit shows the complete SLIC schematic for interface to the Agere T8536 third-genera-
tion codec. All ac parameters are programmed by the T8536. Note this codec differentiates itself in that no external
components are required in the ac interface to provide a dc termination impedance or for stability. Please see the
T8535/6 data sheet for information on coefficient programming.
12-3534.Z1 (F)
Figure 18. Third-Generation Codec ac Interface Network; Complex Termination (3 REN Configuration)
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
50
V
BAT1
50
CF1
CF2
FB1
FB2
NSTAT B3 B2 B1 B0
C
F1
0.22
μ
F
C
F2
0.1
μ
F
VITR
RCVP
RCVN
ITR
VTX
TXI
R
4750
V
BAT1
V
BAT2
V
CC
C
TX
0.1
μ
F
C
C1
0.1
μ
F
PCM
HIGHWAY
DX0
DR0
DX1
DR1
FS
BCLK
DGND
V
DD
SYNC
AND
CLOCK
V
DD
VF
X
I
VF
R
OP
VF
R
ON
SLIC5a
SLIC4a
SLIC3a
SLIC2a
SLIC0a
L9214G
FROM/TO
CONTROL
B3
B2
B0
NSTAT
B1
FUSIBLE RESISTOR
OR PTC
OR PTC
FUSIBLE RESISTOR
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
C
0.01
μ
F
C
0.01
μ
F
R
CR
2 k
C
CC1
820 pF
D
BAT1
1/4 T8536
CODEC
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