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10/100/1000M 100m Copper SFP Fiber Optic Transceiver Module SPT-PE-T2

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10/100/1000M 100m Copper SFP Fiber Optic Transceiver Module SPT-PE-T2

SPT-PE-T2

Copper SFP Transceiver

Features

Up to 1.25Gb/s bi-directional data links
Hot-pluggable SFP footprint
Extended case temperature range (0°C to +70°C )
Fully metallic enclosure for low EMI
Low power dissipation (1.05 W typical)
Compact RJ-45 connector assembly
Access to physical layer IC via 2-wire serial bus
1000 BASE-T operation in host systems with SERDES interface
10/100/1000Mbps compliant in host systems withSGMII interface

Applications

1.25 Gigabit Ethernet over Cat 5 cable

Description

SPT-PE-T2 Copper Small Form Pluggable (SFP) transceivers are high performance, cost effective module compliant with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE 802. 3-2002 and IEEE 802.3ab, which supporting 1000Mbps data- rate up to 100 meters reach over unshielded twisted-pair category 5 cable. The module supports1000 Mbps full duplex data-links with 5-level Pulse Amplitude Modulation (PAM) signals. All four pairs in the cable are used with symbol rate at 250Mbps on each pair. The module provides standard serial ID information compliant with SFP MSA, which can be accessed with address of A0h via the 2wire serial CMOS EEPROM protocol. The physical IC can also be accessed via 2wire serial bus at address ACh.

Pin Definitions

Pin Diagram

Pin Descriptions

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	Note4
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.

1) TX Fault is is not supported and is always connected to ground.

2) TX Disable is not supported.

3) 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 is not supported in 10/100/1000base-T

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 termination inside the module.

+3.3V Volt Electrical Power Interface

The SPT-PE-T2 has an input voltage range of +5V +/- 5%. The 3.3V maximum voltage is not allowed

for continuous operation.

Table 1 +3.3V Volt electrical power interface

+3.3V volt Electrical Power Interface

Parameter

Symbol

Min

Typ

Max

Units

Notes/Conditions

Supply Current

320

375

1.2W max power over full range of

Voltage and temperature.

See caution note below

Input Voltage

Vcc

3.13

3.3

3.47

Referenced to GND

Maximum Voltage

Vmax

Surge Current

Isurge

Hot plug above steady state current. See

caution note below

Caution: Power consumption and surge current are higher than the specified values in the SFP MSA

Low-Speed Signals

MOD_DEF(1) (SCL) and MOD_DEF(2) (SDA), are open drain CMOS signals (see section VII, “Serial

Communication Protocol”). Both MOD_DEF(1) and MOD_DEF(2) must be pulled up to host_Vcc.

Table 2. Low-speed signals, electronic characteristics

Low-Speed Signals, Electronic Characteristics

Parameter

Symbol

Min

Max

Units

Notes/Conditions

SFP Output LOW

VOL

0.5

4.7k to 10k pull-up to host_Vcc, measured at

host side of connector

SFP Output HIGH

VOH

host_Vcc -

0.5

host_Vcc

+ 0.3

4.7k to 10k pull-up to host_Vcc, measured at

host side of connector

SFP Input LOW

VIL

0.8

4.7k to 10k pull-up to Vcc, measured at SFP

side of connector

SFP Input HIGH

VIH

Vcc + 0.3

4.7k to 10k pull-up to Vcc, measured at SFP

side of connector

High-Speed Electrical Interface

All high-speed signals are AC-coupled internally.

Table 3. High-speed electrical interface, transmission line-SFP

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

Table 4. 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

Table 5. 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:

1. Clock tolerance is +/- 50 ppm

2. By default, the SPT-PE-T2 is a full duplex device in preferred master mode

3. Automatic crossover detection is enabled. External crossover cable is not required

Environmental Specifications

Table 6. Environmental specifications

Environmental Specifications
Parameter	Symbol	Min	Typ	Max	Units	Notes/Conditions
Operating Temperature	Top	0		70	°C	Case temperature
Storage Temperature	Tsto	-40		85	°C	Ambient temperature