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: 18/71页
文件大小: 1372K
代理商: PEF3452
PEF 3452
TE3-LIU V1.3
Pin Descriptions
Preliminary Data Sheet
8
2001-12-05
PRELIMINARY
2.2
Pin Definitions and Functions
Table 1
Interface Pin Functions
Pin No.
Symbol
Input
(
I
)
Output
(
O
)
Supply
(
S
)
Receive Direction
I (analog)
Function
9
RL1
Line Receiver 1
Analog input from the external transformer
(receive bipolar ring).
The signal at RL1 mustbe coded according
to B3ZS or HDB3.
Line Receiver 2
Analog input from the external transformer
(receive bipolar tip).
The signal at RL1 mustbe coded according
to B3ZS or HDB3.
Receive Data Output/Positive
Received data at RL1/2 is sent on RDOP/
RDON to the framer interface. Data is
clocked with the rising or falling edge of
RCLK, depending on RPE.
In single rail mode (DR/SR
=
0), data is sent
in NRZ format.
Receive Data Output/Negative
If dual rail data format is selected, the
negative data signal is output on RDON/
BPV.
B
ipolar Violation
If single rail data format is selected, the
bipolar violation indication signal is output
on RDON/BPV. BPV is synchronized on
RCLK.
Receive Clock
Receive Clock extracted from the incoming
data pulses. The active clock edge is
determined by RPE.
During LOS, a clock signal is generated
internally and driven on RCLK (derived
from REFCLK).
10
RL2
I (analog)
25
RDOP
O
24
RDON
O
BPV
26
RCLK
O
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