参数资料
型号: PEF3452
厂商: INFINEON TECHNOLOGIES AG
英文描述: Line Interface Unit for DS3, STS 1 and E3
中文描述: 线路接口单元的DS3中,STS 1和E3
文件页数: 22/71页
文件大小: 1372K
代理商: PEF3452
PEF 3452
TE3-LIU V1.3
Pin Descriptions
Preliminary Data Sheet
12
2001-12-05
PRELIMINARY
20
RL
I
+
PU
Remote Loop Switching
0
=
no loop
1
=
Remote Loop
1)
Local Loop Switching
0
=
no loop
1
=
Local Loop
1)
Transmitter inactive
0
=
transmitter enabled
1
=
transmitter disabled
(outputs 1.5 V common mode voltage)
Line Monitoring Mode
0
=
additional 20 dB gain at RL1/RL2
1
=
normal
B
lanking Enable
0
=
detected signal is switched through
even in case of LOS
1
=
all-zero signal is sent on RDOP/RDON
in case of LOS, REFCLK is used to drive
RCLK
Dual Rail/Single Rail Select
The framer interface is operated either in
dual rail or single rail mode. In single rail
mode, the BPV signal is output on RDON/
BPV and input on XDIN is ignored.
0
=
single rail
1
=
dual rail
RCL
K
Positive Edge Selection
0
=
RDOP, RDON are clocked with
negative (falling) edge of RCLK
1
=
RDOP, RDON are clocked with positive
(rising) edge of RCLK
X
CL
K
Positive Edge Selection
0
=
XDIP, XDIN are clocked with negative
(falling) edge of XCLK
1
=
XDIP, XDIN are clocked with positive
(rising) edge of XCLK
19
LL
I
+
PU
21
XLT
I
+
PU
14
MON
I
+
PU
15
BLE
I
+
PU
12
DR/SR
I
+
PU
6
RPE
I
+
PU
7
XPE
I
+
PU
Table 2
Pin No.
Control Pin Functions
(cont’d)
Symbol
Input
(
I
)
Output
(
O
)
Supply
(
S
)
Function
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