參數(shù)資料
型號： 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
文件頁數(shù)： 40/46頁
文件大?。?/td> 790K
代理商： L9214A
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
相關(guān)PDF資料
PDF描述
L9215A CAP CER 2200PF 3.15KVDC R3 RAD
L9216A CAP CER 270PF 3.15KVDC R3 RAD
L9217A CAP CER 2700PF 3.15KVDC R3 RAD
L9218A CAP CER 330PF 3.15KVDC R3 RAD
L9219A CAP CER 390PF 3.15KVDC R3 RAD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L9215A 制造商:AGERE 制造商全稱:AGERE 功能描述:Short-Loop Sine Wave Ringing SLIC
L9216A 制造商:AGERE 制造商全稱:AGERE 功能描述:Short-Loop Ringing SLIC with Ground Start
L9217A 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface with Reverse Battery and PPM
L9218A 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface
L9219A 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface with Reverse Battery and Dual Current Limit
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