參數(shù)資料
型號: L9218A
英文描述: CAP CER 330PF 3.15KVDC R3 RAD
中文描述: 低成本線接口
文件頁數(shù): 4/30頁
文件大?。?/td> 378K
代理商: L9218A
4
Agere Systems Inc.
Data Sheet
November 2001
L9218A/G Low-Cost Line Interface
Pin Information
Figure 2. 28-Pin PLCC
Table 1. Pin Descriptions
PLCC
1
Symbol
I
PROG
Type
I
Description
Current-Limit Program Input.
A resistor to DCOUT sets the dc current limit of
the device.
No Connect.
No Connect.
5 V Power Supply.
Receive ac Signal Input (Noninverting).
This high-impedance input controls
the ac differential voltage on tip and ring.
Receive ac Signal Input (Inverting).
This high-impedance input controls the
ac differential voltage on tip and ring.
2
3
4
5
NC
NC
V
CC
RCVP
I
6
RCVN
I
VTX
TXI
VITR
NSTAT
NC
RTSP
RCVN
DCOUT
V
BAT
PR
5
6
7
8
9
10
11
4
2
1
28
27
3
12
14
15
16
17
18
13
25
24
23
22
21
20
19
I
P
B
C
P
B
B
B
A
28-PIN PLCC
LCTH
RCVP
CF2
RTSN
T
N
N
N
V
C
26
T
12-3552 (F)
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