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STM1E-SFPXX Datasheet(PDF) 5 Page - Teridian Semiconductor Corporation

Part No. STM1E-SFPXX
Description  155Mbps Copper Transceiver
Download  16 Pages
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Maker  TERIDIAN [Teridian Semiconductor Corporation]
Homepage  http://www.teridian.com
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STM1E-SFPXX Datasheet(HTML) 5 Page - Teridian Semiconductor Corporation

 
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STM1E-SFPxx 155Mbps Copper Transceiver
Final Datasheet
STM1E-SFPxx Datasheet
- 5 -
August 2008 v2-2
Host Interface Pinout
Pin
Name
Description
Notes
1
VeeT
Transmitter ground.
Note 1
2
Tx Fault
Not supported in STM1E-SFPxx. Grounded internally.
3
Tx Disable
Transmit Disable. When pin is high or open, the transmitter is powered
down and tri-stated.
4
MOD-DEF2
Module Definition 2. Bi-directional data pin of two wire serial ID
interface. This pin is open-drain and may be wired-ORed with other
open-drain or open-collector devices.
5
MOD-DEF1
Module Definition 1. Clock pin of two wire serial ID interface. Data is
clocked into EEPROM device on the positive edge and clocked out on
the negative edge.
6
MOD-DEF0
Module Definition 0. Grounded internally. Used to notify host system
that an SFP is present.
7
Rate Select
Not supported in STM1E-SFPxx. Floating internally.
8
RLOS
Receive Loss of Signal. Asserted when the received signal is less than
approximately 19dB below nominal for 110 UI. The RLOS condition is
cleared when the received signal is greater than approximately 18dB
below nominal for 110 UI.
Note 2
9
VeeR
Receiver ground.
Note 1
10
VeeR
Receiver ground.
Note 1
11
VeeR
Receiver ground.
Note 1
12
RD-
Recovered receive NRZ data output (inverted).
13
RD+
Recovered receive NRZ data output.
14
VeeR
Receiver ground.
Note 1
15
VccR
Receiver power supply (+3.3V).
Note 3
16
VccT
Transmitter power supply (+3.3V).
Note 3
17
VeeT
Transmitter ground.
Note 1
18
TD+
Transmit NRZ data input.
19
TD-
Transmit NRZ data input (inverted).
20
VeeT
Transmitter ground.
Note 1
Notes:
1. Transmit and Receive grounds are connected directly together internally. For STM1E-SFP08 version,
circuit grounds are also connected to frame/chassis ground.
2. During Rx LOS conditions, the receive data outputs RD+/- are squelched. See Receiver Loss of Signal
Condition section for more information on LOS detection for STM-1e interfaces.
3. Transmit and Receive power supplies are connected together internally.


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