-
Pin Description
|
Pin
|
Signal Name
|
Description
|
Plug Seq.
|
Notes
|
|
1
|
VEET
|
Transmitter Ground
|
1
|
|
|
2
|
TX FAULT
|
Transmitter Fault
Indication
|
3
|
Note1
|
|
3
|
TX DISABLE
|
Transmitter Disable
|
3
|
Note2
|
|
4
|
MOD_DEF(2)
|
SDA Serial Data Signal
|
3
|
Note3
|
|
5
|
MOD_DEF(1)
|
SCL Serial Clock Signal
|
3
|
Note3
|
|
6
|
MOD_DEF(0)
|
TTL Low
|
3
|
Note3
|
|
7
|
Rate Select
|
Not Connected
|
3
|
|
|
8
|
LOS
|
Loss of Signal
|
3
|
Note 4
|
|
9
|
VEER
|
Receiver ground
|
1
|
|
|
10
|
VEER
|
Receiver ground
|
1
|
|
|
11
|
VEER
|
Receiver ground
|
1
|
|
|
12
|
RX-
|
Inv. Received Data Out
|
3
|
Note 5
|
|
13
|
RX+
|
Received Data Out
|
3
|
Note 5
|
|
14
|
VEER
|
Receiver ground
|
1
|
|
|
15
|
VCCR
|
Receiver Power Supply
|
2
|
|
|
16
|
VCCT
|
Transmitter Power Supply
|
2
|
|
|
17
|
VEET
|
Transmitter Ground
|
1
|
|
|
18
|
TX+
|
Transmit Data In
|
3
|
Note 6
|
|
19
|
TX-
|
Inv. Transmit Data In
|
3
|
Note 6
|
|
20
|
VEET
|
Transmitter Ground
|
1
|
|
Notes:
Plug Seq.: Pin engagement sequence during hot plugging.
- TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V.
- 2)TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7 ¨C 10 K resistor. Its states are:
Low (0 to 0.8V): Transmitter on
(>0.8, < 2.0V): Undefined
High (2.0 to 3.465V): Transmitter Disabled Open: Transmitter Disabled
- Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K to 10K resistor on the host board. The pull-up voltage shall be VccT or VccR
Mod-Def 0 is grounded by the module to indicate that the module is present Mod-Def 1 is the clock line of two wire serial interface for serial ID
Mod-Def 2 is the data line of two wire serial interface for serial ID
- 4)LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K to 10K resistor. Pull up voltage between 2.0V and VccT, R+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In the low state, the output will be pulled to <0.8V.
- 5)RD-/+: These are the differential receiver outputs. They are AC coupled 100 differential lines which should be terminated with 100 (differential) at the user SERDES.
- 6)TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100 differential terminations inside the module.
+3.3V Volt Electrical Power Interface
The SFP-GB-T3 has an input voltage range of +5V +/- 5%. The 3.3V maximum voltage is not allowed for continuous operation.
+3.3V Volt electrical power interface
|
+3.3V volt Electrical Power Interface
|
|
Parameter
|
Symbol
|
Min
|
Typ
|
Max
|
Units
|
Notes/Conditions
|
|
Supply Current
|
Is
|
|
320
|
375
|
mA
|
1.2W max power over full range of voltage and temperature.
See caution note below
|
|
Input Voltage
|
Vcc
|
3.13
|
3.3
|
3.47
|
V
|
Referenced to GND
|
|
Maximum
|
Vmax
|
|
|
4
|
V
|
|
|
Voltage
|
|
|
|
|
|
|
|
Surge Current
|
Isurge
|
|
|
30
|
mA
|
Hot plug above steady state current. See caution note below
|
Low-speed signals, electronic characteristics
|
Low-Speed Signals, Electronic Characteristics
|
|
Parameter
|
Symbol
|
Min
|
Max
|
Units
|
Notes/Conditions
|
|
SFP Output LOW
|
VOL
|
0
|
0.5
|
V
|
4.7k to 10k pull-up to host_Vcc, measured at host side of connector
|
|
SFP Output
HIGH
|
VOH
|
host_Vc
c – 0.5
|
host_Vc
c + 0.3
|
V
|
4.7k to 10k pull-up to host_Vcc,
measured at host side of connector
|
|
SFP Input LOW
|
VIL
|
0
|
0.8
|
V
|
4.7k to 10k pull-up to Vcc, measured at SFP side of connector
|
|
SFP Input HIGH
|
VIH
|
2
|
Vcc + 0.3
|
V
|
4.7k to 10k pull-up to Vcc, measured at SFP side of connector
|
High-Speed Electrical Interface
|
High-Speed Electrical Interface Transmission Line-SFP
|
|
Parameter
|
Symbol
|
Min
|
Typ
|
Max
|
Units
|
Notes/Conditions
|
|
Line Frequency
|
fL
|
|
125
|
|
MHz
|
5-level encoding, per IEEE 802.3
|
|
Tx Output Impedance
|
Zout,TX
|
|
100
|
|
Ohm
|
Differential, for all Frequencies between 1MHz and 125MHz
|
|
Rx Input Impedance
|
Zin,RX
|
|
100
|
|
Ohm
|
Differential, for all Frequencies between 1MHz and 125MHz
|
High-speed electrical interface, host-SFP
|
High-Speed Electrical Interface, Host-SFP
|
|
Parameter
|
Symbol
|
Min
|
Typ
|
Max
|
Units
|
Notes/Conditions
|
|
Single ended data input
swing
|
Vinsing
|
250
|
|
1200
|
mV
|
Single ended
|
|
Single ended data output
swing
|
Voutsing
|
350
|
|
800
|
mV
|
Single ended
|
|
Rise/Fall Time
|
Tr,Tf
|
|
175
|
|
psec
|
20%-80%
|
|
Tx Input Impedance
|
Zin
|
|
50
|
|
Ohm
|
Single ended
|
|
Rx Output Impedance
|
Zout
|
|
50
|
|
Ohm
|
Single ended
|
General Specifications
|
General
|
|
Parameter
|
Symbol
|
Min
|
Typ
|
Max
|
Units
|
Notes/Conditions
|
|
Data Rate
|
BR
|
10
|
|
1,000
|
Mb/sec
|
IEEE 802.3 compatible.
See Notes 2 through 4 below
|
|
Cable
Length
|
L
|
|
|
100
|
m
|
Category 5 UTP. BER <10-12
|
Notes:
- Clock tolerance is +/- 50 ppm
- By default, the GSFP-Tx is a full duplex device in preferred master mode
- Automatic crossover detection is enabled. External crossover cable is not required
- 10/100/1000BASE-T operation requires the host system to have an SGMII interface with no clocks
Environmental Specifications
|
Environmental Specifications
|
|
Parameter
|
Symbol
|
Min
|
Typ
|
Max
|
Units
|
Notes/Conditions
|
|
Operating
Temperature
|
Top
|
-40
|
|
85
|
°C
|
Case temperature
|
|
Storage Temperature
|
Tsto
|
-40
|
|
100
|
°C
|
Ambient temperature
|
Mechanical Specifications
The host-side of the SFP-GB-T3 conforms to the mechanical specifications outlined in the SFP MSA1. The front portion of the SFP (part extending beyond the face plate of the host) is larger to accommodate the RJ- 45 connector.
