1.25Gbps Copper SFP Transceiver
Model/PN: NASASFPGETX1
Features
- • Up to 1.25Gbps bi-directional data links *1
- • RJ45 Max100m
- • Fully metallic enclosure for low EMI
- • Compact RJ-45 Connector assembly
- • Hot-pluggable SFP footprint
- • Low power dissipation
- • Extended case temperature: 0℃ to 85℃
- • RoHS compliant and Lead Free
- • Access to physical layer IC via 2-wire serial bus over Cat 5 cable
- • 1000BASE-T operation in host systems with SGMII interface *1
Application
- • 25 Gigabit Ethernet
1. Product Description
The NASASFPGETX1 is Copper Small Form pluggable (SFP) transceiver is individually tested on a series of Cisco, Juniper, Dell, HP, IBM…. switches, routers, servers, network interface card (NICs) etc, which are based on SFP multi-sourcing agreement (MSA). They are compatible with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE Std 802.3. The 1000BASE-T physical layer IC(PHY) can be accessed via I2C, allowing access to all PHY settings and features. The NASASFPGETX1 is compatible with 1000BASE-X auto-negotiation, but does not have a link indication feature (RX-LOS is internally grounded).
PRODUCT SELECTION
|
Part Number |
Link Indicator on RX LOS Pin |
1000BASE-X auto-negotiation enabled by default |
|
NASASFPGETX1 |
NO |
YES |
2. Regulatory Compliance
NASA-SI transceivers are Class 1 Laser Products comply with FDA regulations. Meet Class 1 eye safety requirements of EN 60825 and the electrical safety requirements of EN 60950.
3. +3.3V Volt Electrical Power Interface
The NASASFPGETX1/2 has an input voltage range of 3.3V +/-5%,The 4 V maximum voltage is not allowed for continuous operation.
Table 1.+3.3 Volt electrical power interface
|
Parameter |
Symbol |
Min. |
Typ |
Max |
Units |
Notes/Conditions |
|
Supply Current |
Is |
300 |
325 |
345 |
mA |
1.2W max power over full range of voltage and temperature.see caution note below |
|
Power Supply Voltage |
Vcc |
3.13 |
3.3 |
3.47 |
v |
Referebced to GND |
|
Maximum Voltage |
Vmax |
|
|
|
v |
|
|
Surge Current |
Isurge |
|
|
345 |
mA |
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
4. Low-Speed Signals
Table 2. 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 Vcc-0.5 |
Host Vcc+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 |
5. High-Speed Electrical Interface
ALL high-speed signals are AC-coupled internally
(1) High-speed Electrical Interface Transmission Line-SFP
Table 3. High-speed electrical interface, transmission line-SFP
|
Parameter |
Symbol |
Min. |
Typ |
|
Max |
Units |
Notes/Conditions |
|
Line Frequency |
Is |
10 |
125 |
|
1000 |
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 |
(2)High-speed Electrical Interface, Host-SFP
Table 4. 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 |
6. General Specifications
Table 5. General specifications
|
Parameter |
Symbol |
Min. |
Typ |
Max |
Units |
Notes/Conditions |
|
Data Rate |
BR |
10 |
|
1000 |
Mb/sec |
IEEE 802.3 compatible.See Notes 2 through 4 below |
|
Tx Output Impedance |
L |
|
|
100 |
M |
Category 5 UTP.BER<10-12 |
Note:
1. Clock tolerance is +/- 50 ppm
2. By default,the NASASFPGETX1 is a full duplex device in preferred master mode
3. Automatic crossover detection is enabled. External crossover cable is not required
4. 1000 BASE-T operation requires the host system to have an SGMII interface with no clocks, and the module PHY to be configured per Applications Note AN-2036.With a SERDES that does not support SGMII, the module will operate at 1000BASE-T only.
7. Environmental Specifications
The NASASFPGETX1 has an extended range from 0℃ to +85℃ case temperature as specified in Table.
Table 6. Environmental specifications
|
Parameter |
Symbol |
Min. |
Typ |
Max |
Units |
Notes/Conditions |
|
Operating Temperature |
Top |
0 |
|
85 |
|
Case temperature |
|
Storage Temperature |
Tsto |
-40 |
|
85 |
|
Ambient temperature |
8. Pin Descriptions
Table 7. SFP to host connector pin assignments and descriptions
|
Pin |
Symbol |
Description |
Ref. |
|
1 |
VEET |
Transmitter Ground (Common with Receiver Ground) |
8.1 |
|
2 |
TFAULT |
Transmitter Fault. Not supported. |
|
|
3 |
TDIS |
Transmitter Disable. Laser output disabled on high or open. |
8.2 |
|
4 |
MOD_DEF(2) |
Module Definition 2. Data line for Serial ID. |
8.3 |
|
5 |
MOD_DEF(1) |
Module Definition 1. Clock line for Serial ID. |
8.3 |
|
6 |
MOD_DEF(0) |
Module Definition 0. Grounded within the module. |
8.3 |
|
7 |
Rate Select |
No connection required |
|
|
8 |
LOS |
Grounded |
8.4 |
|
9 |
VEER |
Receiver Ground (Common with Transmitter Ground) |
8.1 |
|
10 |
VEER |
Receiver Ground (Common with Transmitter Ground) |
8.1 |
|
11 |
VEER |
Receiver Ground (Common with Transmitter Ground) |
8.1 |
|
12 |
RD- |
Receiver Inverted DATA out. AC Coupled. |
|
|
13 |
RD+ |
Receiver Non-inverted DATA out. AC Coupled. |
|
|
14 |
VEER |
Receiver Ground (Common with Transmitter Ground) |
8.1 |
|
15 |
VCCR |
Receiver Power Supply |
|
|
16 |
VCCT |
Transmitter Power Supply |
|
|
17 |
VEET |
Transmitter Ground (Common with Receiver Ground) |
8.1 |
|
18 |
TD+ |
Transmitter Non-Inverted DATA in. AC Coupled. |
|
|
19 |
TD- |
Transmitter Inverted DATA in. AC Coupled. |
|
|
20 |
VEET |
Transmitter Ground (Common with Receiver Ground) |
8.1 |
Notes:
8.1 Circuit ground is connected to chassis ground.
8.2 PHY disabled on TDIS>2.0V or open, enabled on TDIS<0.8V.
8.3 Should be pulled up with 4.7k – 10k Ohms on host board to a voltage between 2.0V and 3.6V. MOD_DEF(0) pulls line low to indicate module is plugged in.
9. Mechanical Specifications
10. Serial Communication Protocol
All NASA-SI SFPS support the 2-wire serial communication protocol outlined in the SFP MSA. These SFPS use an Atmel AT24C01A 128 byte E2PROM with an address of A0h.For details on interfacing with the E2PROM,see the Atmel data sheet titled “AT24C01A/02/04/08/16 2-Wire Serial CMOS E2PROM.”
The 1000BASE-T physical layer IC can also be accessed via the 2-wire serial bus at address Ach .For details interfacing with the PHY IC, see Marvell data sheet titled “Alaska Ultra 88E1111 Integrated Gigabit Ethernet Transceiver”(Marvell document number MV-S100649-00).
Serial Bus Timing Requirements
|
Parameter |
Symbol |
Min. |
Typ |
Max |
Units |
Notes/Conditions |
|
IC Clock Rate |
|
0 |
|
100000 |
Hz |
|
Custom requirement:
- EEPROM
2 wire address 1010000X (A0h)
|
0~95 Serial ID Defined by SFP MSA (96 bytes) |
|
96~127 Vendor Speific (32 bytes) |
|
128~255 Reserved (128 bytes) |
EEPROM Serial ID Memory Contents
|
Add. |
Size (Bytes) |
Name of Field |
Hex |
Description |
|
BASE ID FIELDS |
||||
|
0 |
1 |
Identifier |
03 |
SFP |
|
1 |
1 |
Ext. Identifier |
04 |
SFP function is defined by serial ID only |
|
2 |
1 |
Connector |
22 |
RJ45 Connector |
|
3-10 |
8 |
Transceiver |
00 00 00 08 00 00 00 00 |
Transmitter Code |
|
11 |
1 |
Encoding |
01 |
8B/10B |
|
12 |
1 |
BR, Nominal |
0D |
1.25Gbps |
|
13 |
1 |
Reserved |
00 |
|
|
14 |
1 |
Length (9um) km |
00 |
Transceiver Transmit Distance |
|
15 |
1 |
Length (9um) 100m |
00 |
|
|
16 |
1 |
Length (50um) 10m |
00 |
|
|
17 |
1 |
Length (62.5um) 10m |
00 |
|
|
18 |
1 |
Length (Copper) |
64 |
100m |
|
19 |
1 |
Reserved |
00 |
|
|
20-35 |
16 |
Vendor Name |
43 2D 4C 49 47 48 54 20 20 20 20 20 20 20 20 20 |
NASA-SI * OEM available |
|
36 |
1 |
Reserved |
00 |
|
|
37-39 |
3 |
Vendor OUI |
00 00 00 |
|
|
40-55 |
16 |
Vendor PN |
xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx |
* OEM available |
|
56-59 |
4 |
Vendor Rev |
30 31 20 20 |
01 |
|
60-61 |
2 |
Wavelength |
00 00 |
0nm |
|
62 |
1 |
Reserved |
00 |
|
|
63 |
1 |
CC_BASE |
xx |
Check Code for Base ID Field |
|
EXTENDED ID FIELDS |
||||
|
64-65 |
2 |
Options |
00 00 |
|
|
66 |
1 |
BR, Max |
00 |
|
|
67 |
1 |
BR, Min |
00 |
|
|
68-83 |
16 |
Vendor SN |
43 4C xx xx xx xx xx xx xx xx xx xx 20 20 20 20 |
SN of Transceiver (ASCII). Exp. “CLXXXXXXXXXX” |
|
84-91 |
8 |
Date Code |
xx xx xx xx xx xx 20 20 |
Exp. 120727 |
|
92 |
1 |
Diagnostic Monitoring |
00 |
DDM Not implemented |
|
93 |
1 |
Enhanced Options |
00 |
Optional flags not implement |
|
94 |
1 |
SFF_8472 Compliance |
00 |
Not defined |
|
95 |
1 |
CC_EXT |
checksum |
Checksum for Extened ID |
|
VENDOR SPECIFIC ID FIELDS |
||||
|
96-127 |
32 |
Vendor Specific |
20 20 20…… |
Depends on Customer Info |
|
128-255 |
128 |
Reserved |
FF FF FF…… |
Depends on Customer Info |
11. Label sample
NASA-SI offers label OEM design and print.
Label barcode supports code128 and 2D barcode
SIZE: 1) Front 35mm*10.5mm 2) Back 26mm*10.5mm
12. Ordering Information
|
Part No. |
Data Rate |
Laser |
Fiber Type |
Distance |
Optical Interface |
|
NASASFPGETX1 |
1000M |
|
|
100m |
RJ45 |
VERSION UPDATE:
|
VERSION NO. |
DATE |
UPDATED INFORMATION |
|
V20130322 |
20130322 |
1. PIN setting LOS Grounded added 2. EEPROM data at addr 02 changed to “22” |
|
V20130930 |
20130930 |
1. LABEL design changed 2. LABEL BARCODE SETTING changed |
|
V20140812 |
20140812 |
1. NASASFPGETX1 added |
NOTICE: NASA-SI reserves the right to make changes to this product in this specification without notice, in order to improve product performance.