參數(shù)資料
型號: L9219A
英文描述: CAP CER 390PF 3.15KVDC R3 RAD
中文描述: 低成本線接口,具有反向電池和雙電流限制
文件頁數(shù): 26/30頁
文件大?。?/td> 397K
代理商: L9219A
26
Agere Systems Inc.
Data Sheet
November 2001
with Reverse Battery and Dual Current Limit
L9219A/G Low-Cost Line Interface
Applications
(continued)
ac Design
(continued)
Example 2: Complex Termination (First-Generation Codec)
(continued)
Figure 17. Interface Circuit Using First-Generation Codec (
±
5 V Battery)
Figure 18. Interface Circuit Using First-Generation Codec (5 V Only Codec)
R
TGS
R
TGP
= 8.06 k
R
T6
R
X
R
T3
OP AMP
+
C
N
R
N1
R
N2
R
GP
R
RCV
RCVN
RCVP
201.2
C
GS
C
B
CODEC
OUTPUT
DRIVE
AMP
CODEC
–I
T/R
AX
AAC
5-6401 (F).j
R
TGS
C
B
R
TGP
= 8.06 k
R
T6
R
X
R
T3
CODEC
OUTPUT
DRIVE
AMP
CODEC
OP AMP
–2.4 V
+
C
N
R
N1
R
N2
R
GP
R
RCV
RCVN
RCVP
–I
T/R
201.2
C
G
AX
AAC
C
B1
C
B2
5-6400 (F).n
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