Download Small Form-Factor Pluggable (SFP) Copper Transceiver Features

Small Form-Factor Pluggable (SFP)
Copper Transceiver
Features
•
Compliant with Small Form-Factor Pluggable
(SFP) Transceiver Multi-Source Agreement
(MSA)
•
2.5Gbps Data Rates
•
Fibre Channel data rates to 2.125 Gbps
•
Gigabit Ethernet data rates to 2.5 Gbps
•
InfiniBand data rates to 2.5 Gbps
•
Hot Pluggable
•
Operates on either single 3.3V or 5V single
supply
•
Supports Serial ID functionality
•
Die cast housing provides superior EMI
performance
•
Intuitive “squeeze and pull” latching mechanism
•
Mates with 20 pos SMT Host Connector
Molex p/n 74441-0001
•
SFP EMI Cage Molex p/n 73927-xxxx
Product Overview
The SFP transceiver module is a high performance integrated duplex data link for bidirectional communication over copper cable. It is designed for high speed data rates of up
to 2.5 Gbps. The hot pluggable feature allows changing to/from another SFP-compatible
module without having to remove system power.
Part Number
Receptacle
Impedance
Options
74720-0101
74720-0102
InfiniBand HSSDC2
InfiniBand HSSDC2
100
100
w/o serial ID
w/ serial ID
74720-0201
74720-0202
Fibre Channel HSSDC2
Fibre Channel HSSDC2
150
150
w/o serial ID
w/ serial ID
Rev. 101-4 09/01
MOLEX High Performance Adapter 101 Bringler Drive, Maumelle, AR 72113 / Tel: (501) 851-4850 Web: www.molex.com
Small Form-Factor Pluggable (SFP)
Copper Transceiver
Active Performance Specifications
MODULE SPECIFICATIONS - ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
MIN
Storage Temperature
Tstg
-40
Supply Voltage
Vcc
Data DC Voltage
Voffset
-10
MAX
85
6.00
UNITS
ºC
V
10
Vpk
NOTES
Vcc-ground
V (Tx+,Tx-,Rx+, Rx-) to
ground
MODULE SPECIFICATIONS - RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
MIN
TYP
MAX UNITS
NOTES
Ambient Operating Temperature
Ta
0
50
ºC
Supply Voltage @ 5V
Vcc
4.75
5.00
5.25
Vdc
Supply Voltage @ 3.3V
Vcc
3.15
3.3
3.45
Vdc
Baud Rate
BRate
2500
Mbaud
PERFORMANCE SPECIFICATIONS - ELECTRICAL
PARAMETER
SYMBOL
MIN
Bit Error Rate
BER
Supply Current
Icc
Surge Current
TRANSMITTER
PECL Input (Differential)
Impedance (Host board side)
TX_DISABLE Input Voltage:
Transmitter on
Transmitter disabled
RECEIVER
PECL Output (Differential)
Impedance (HSSDC2/cable side):
100 Ohm
150 Ohm
RX_LOS Output Voltage:
Signal present
Loss of Signal
Input Voltage Range:
TYP
Isurge
150
Zhost
Vil
Vih
0
2.0
400
Zcable
Zcable
Vol
Voh
Vid
800
100
750
MAX
1E-12
175
mA
+30
mA
1200
mVpp
ohms
0.8
Vcc
V
V
1600
mVpp
100
150
Vcc-1.38
35
UNITS
NOTES
Errors/Bit
Surge above steady state
value
AC coupled inputs
AC coupled outputs
ohms
ohms
0.5
Vcc
1800
V
V
mVpp
MOLEX High Performance Adapter 101 Bringler Drive, Maumelle, AR 72113 / Tel: (501) 851-4850 Web: www.molex.com
Small Form-Factor Pluggable (SFP)
Copper Transceiver
Active Performance Specifications Continued
PERFORMANCE SPECIFICATIONS – TIMING
PARAMETER
SYMBOL MIN TYP MAX UNITS
CONDITIONS
TX Disable Assert Time
t_off
10
Rising edge of TX_DISABLE to fall of output
signal below 10% of nominal
TX Disable Negate Time
t_on
1
Time to initialize
t_init
300
LOS Assert Time
t_loss_on
100
LOS Negate Time
t_loss_off
100
µsec
Falling edge of TX_DISABLE to rise of output
msec signal above 90% of nominal
From power on or hot-plug after Vcc reaches
msec Vcc(min)
From receiver loss of signal to assertion of
µsec LOS
From presence of signal at receiver to
µsec negation of LOS
MOLEX High Performance Adapter 101 Bringler Drive, Maumelle, AR 72113 / Tel: (501) 851-4850 Web: www.molex.com
Small Form-Factor Pluggable (SFP)
Copper Transceiver
The SFP-MSA document recommends a mating sequence of ground, power, and signal contacts in that order. A
diagram of the host connector is show in Figure 1. Signal inputs/outputs on the SFP transceiver modules from the
20-pin host connector are AC coupled and internally terminated to 50 or 75 ohms (TD+, TD-, RD+, RD-) depending
on InfiniBand or Fibre Channel specifications. Figure 2 shows the recommended power supply filtering network.
Towards
Bezel
1
TGND
2
TX_Fault
3
TX_Disable
4
MOD_DEF(2)
5
MOD_DEF(1)
6
MOD_DEF(0)
7
Rate_Select
8
LOS
9
RGND
10
RGND
TGND
20
TD(-)
19
TD(+)
18
TGND
17
VccT
16
VccR
15
RGND
14
RD(+)
13
RD(-)
12
RGND
11
Towards
SERDES
Figure 1. Diagram of the Host Board Connector Block Pin Number and Names
0.1µF
1.0µH
VccT
0.1µF
VccR
10µF
1.0µH
0.1µF
10µF
3.3V
or 5V
SFP Module
Figure 2. Recommended Host Board Supply Filtering Network
MOLEX High Performance Adapter 101 Bringler Drive, Maumelle, AR 72113 / Tel: (501) 851-4850 Web: www.molex.com
Small Form-Factor Pluggable (SFP)
Copper Transceiver
Active Electrical Interface
SFP Host Connect Electrical Interface, Pin Descriptions
PIN
NAME
DIRECTION
AT CONNECTOR
PIN 1
PIN 2
TGND
TX_FAULT
PIN 3
TX_DISABLE
IN
Active high input which disables the transmitter
output. This is driven by the host and is internally
pull up to Vcc through a 5.1k ohm resistor.
PIN 4
MOD_DEF(2)
I/O
Signal SDA (Data) of the 2-wire serial ID interface
PIN 5
MOD_DEF(1)
IN
PIN 6
MOD_DEF(0)
-
Signal SCL (Clock) of the 2-wire serial ID
interface
This pin is internally tied to Transmit ground
PIN 7
Rate select
OUT
Logic High (VccR though 33k resistor) for full
bandwidth, open for reduced bandwidth
PIN 8
LOS
OUT
Logic how indicates signal presence, high
indicates loss of receiver signal. Requires user
pull-up resistor (4.7k-10k to VccR).
PIN 9
PIN 10
PIN 11
PIN 12
RGND
RGND
RGND
RD-
OUT
Receiver ground
Receiver ground
Receiver ground
Differential receiver outputs. User to terminate to
100 ohms differential at SERDES.
PIN 13
PIN 14
PIN 15
PIN 16
PIN 17
PIN 18
RD+
RGND
VCCR
VCCT
TGND
TD+
OUT
IN
IN
-
PIN 19
PIN 20
TDTGND
-
"
Receiver ground
Receiver power
Transmitter/EEPROM power
Transmit ground
Differential transmitter inputs. Internally
terminated to 100 ohms differential.
"
Transmit ground
-
DESCRIPTION
Transmit ground
This pin is internally tied to Transmit ground
MOLEX High Performance Adapter 101 Bringler Drive, Maumelle, AR 72113 / Tel: (501) 851-4850 Web: www.molex.com
Small Form-Factor Pluggable (SFP)
Copper Transceiver
HSSDC2 Electrical Interface
Infiniband HSSDC2 ELECTRICAL INTERFACE, PIN DESCRIPTIONS
PIN
NAME
DIRECTION
AT HSSDC2
PIN 1
PIN 2
TGND
RD+
IN
PIN 3
PIN 4
PIN 5
RDTGND
TD-
IN
OUT
PIN 6
TD+
OUT
PIN 7
TGND
-
DESCRIPTION
Transmit ground
Differential receiver inputs. Internally
terminated.
"
Transmit ground
Differential receiver outputs. User to
terminate.
"
Transmit ground
Fibre Channel HSSDC2 ELECTRICAL INTERFACE, PIN DESCRIPTIONS
PIN
NAME
DIRECTION
AT HSSDC2
PIN 1
PIN 2
TGND
RD-
IN
PIN 3
PIN 4
PIN 5
RD+
TGND
TD+
IN
OUT
PIN 6
TD-
OUT
PIN 7
TGND
-
DESCRIPTION
Transmit ground
Differential receiver inputs. Internally
terminated.
"
Transmit ground
Differential receiver outputs. User to
terminate.
"
Transmit ground
MOLEX High Performance Adapter 101 Bringler Drive, Maumelle, AR 72113 / Tel: (501) 851-4850 Web: www.molex.com
Small Form-Factor Pluggable (SFP)
Copper Transceiver
Transmit Differential Eye Pattern
Eye Height:
Eye Width:
Jitter (pp):
Skew:
Rise/Fall:
1.259 V
353.4 ps
44 ps
5 ps
103 ps
Eye Height:
Eye Width:
Jitter (pp):
Skew:
Rise/Fall:
848.6 mV
345.4 ps
46 ps
3 ps
120 ps
Receive Differential Eye Pattern
MOLEX High Performance Adapter 101 Bringler Drive, Maumelle, AR 72113 / Tel: (501) 851-4850 Web: www.molex.com