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- 1.25Gbps GBIC Optical Transceiver, SPT-G151G-70
- Fiber Optic Transceiver Module
- High Speed Cable
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- Splitter CWDM DWDM
- PON Solution
- FTTH Box ODF Closure
- PCI-E Network Card
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- Fiber Optical Adapter
- Fiber Optical Attenuator
- Fiber Media Converter
- PDH Multiplexers
- Protocol Converter
- Digital Video Multiplexer
- Fiber Optical Tools
- Compatible
- Fiber Optic Transceiver Module
- High Speed Cable
- Fiber Optical Cable
- Fiber Optical Patch Cords
- Splitter CWDM DWDM
- PON Solution
- FTTH Box ODF Closure
- PCI-E Network Card
- Network Cables
- Fiber Optical Adapter
- Fiber Optical Attenuator
- Fiber Media Converter
- PDH Multiplexers
- Protocol Converter
- Digital Video Multiplexer
- Fiber Optical Tools
- Compatible
1.25Gbps GBIC Optical Transceiver, SPT-G151G-70
Features
- Dual data-rate of 1.25Gbps/1.0625Gbps operation
- 1550nm DFB laser and PIN photodetector for 80km transmission
- Duplex SC optical interface
- Standard serial ID information compatible with SFF-8053
- +3.3V/5Vsingle power supply
- RoHS Compliant
- Operating case temperature: 0 to +70℃
Applications
- Switch to Switch interface
- Switched backplane applications
- Router/Server interface
- Other optical transmission systems
Description
The GBIC transceiver is high performance, cost effective module supporting dual data-rate of 1.25Gbps/1.0625Gbps and from 40km transmission distance with SMF.
The transceiver consists of two sections: The transmitter section incorporates a DFB laser. And the receiver section consists of a PIN photodiode integrated with a trans-impedance preamplifier (TIA). All modules satisfy class I laser safety requirements.
The optical output can be disabled by a TTL logic high-level input of Tx Disable. Tx Fault is provided to indicate degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver.
The standard serial ID information Compatible with GBIC MSA describes the transceiver’s capabilities, standard interfaces, manufacturer and other information. The host equipment can access this information via the two-wire serial CMOS EEPROM protocol. For further information, please refer to SFF-8053
Absolute Maximum Ratings
Stress in excess of the maximum absolute ratings can cause permanent damage to the module.
Table 1 - Absolute Maximum Ratings
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
|
Maximum Supply Voltage |
Vcc |
0.5 |
- |
4.5 |
V |
|
Storage Temperature |
TS |
-40 |
- |
100 |
℃ |
|
Relative Humidity |
RH |
0 |
- |
+85 |
% |
Recommended Operating Conditions
Table2 - Recommended Operating Conditions
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
||
|
Operating Case Temperature |
Standard |
TC |
0 |
- |
+70 |
℃ |
|
|
Power Supply Voltage |
VCC |
3.1 |
|
5.5 |
v |
||
|
Power Supply Current |
Icc |
|
|
300 |
mA |
||
|
Data Rate |
Gigabit Ethernet |
|
|
1.25 |
|
Gbps |
|
|
Fibre Channel |
|
|
1.0625 |
|
|||
Optical and Electrical Characteristics
SPT-G151G-70: (1550nm DFB and PIN, 70km)
Table3 - Optical and Electrical Characteristics (Operating case temperature TC=25℃, VCC=3.3V)
|
Parameter |
Symbol |
Min. |
Typical |
Max. |
Unit |
Notes |
|
|
Transmitter |
|||||||
|
Centre Wavelength |
λC |
1530 |
1550 |
1570 |
nm |
|
|
|
Spectral Width (-20dB) |
σ |
|
|
1 |
nm |
|
|
|
Side Mode Suppression Ratio |
SMSR |
30 |
|
|
dB |
|
|
|
Average Output Power |
P0ut |
0 |
|
+5 |
dBm |
1 |
|
|
Extinction Ratio |
ER |
9 |
|
|
dB |
|
|
|
Output Optical Eye |
IEEE 802.3z and ANSI Fiber Channel compatible |
2 |
|||||
|
Data Input Swing Differential |
VIN |
300 |
|
1860 |
mV |
3 |
|
|
Input Differential Impedance |
ZIN |
90 |
100 |
110 |
Ω |
|
|
|
TX Disable |
Disable |
|
2.0 |
|
Vcc |
V |
|
|
Enable |
|
0 |
|
0.8 |
V |
|
|
|
TX Fault |
Fault |
|
2.0 |
|
Vcc+0.3 |
V |
|
|
|
Normal |
|
0 |
|
0.8 |
V |
|
|
Receiver |
|||||||
|
Centre Wavelength |
λC |
1260 |
|
1580 |
nm |
|
|
|
Receiver Sensitivity |
|
|
|
-22 |
dBm |
4 |
|
|
Receiver Overload |
|
-3 |
|
|
dBm |
4 |
|
|
Optical Path Penalty |
|
|
|
1 |
dB |
5 |
|
|
LOS De-Assert |
LOSD |
|
|
-23 |
dBm |
|
|
|
LOS Assert |
LOSA |
-30 |
|
|
dBm |
|
|
|
LOS Hysteresis |
|
1 |
|
4 |
dB |
|
|
|
Data Output Swing Differential |
VOUT |
370 |
|
1800 |
mV |
6 |
|
Notes:
1.The optical power is launched into SMF.
2.MeasuredwithaPRBS27-1testpattern@1250Mbps.
3.PECLinput,internallyACcoupledandterminated.
4.MeasuredwithaPRBS27-1testpattern@1250Mbps,BER≤1×10-12.
5.MeasuredwithaPRBS27-1testpattern@1250Mbps,over20kmG.652SMF,BER≤1×10-12.
6. Internally AC coupled.
EEPROM Section
The SFF-8053 defines a 256-byte memory map in EEPROM describing the transceiver’s capabilities, standard interfaces, manufacturer, and other information, which is accessible over a 2 wire serial interface at the 8-bit address 1010000X (A0h).
Pin Definitions
Pin Diagram
Pin Descriptions
|
Pin Name |
Pin# |
Name/Function |
Signal Specification |
|
Receiver signals |
|||
|
RGND |
2,3,11,14 |
Receiver Ground (may be connected sith TGND in GBIC) |
Ground, to GBIC |
|
VDDR |
15 |
Receiver+3.3/5 volt (may be connected with VDDT in GBIC) |
Power, to GBIC |
|
-RX_DAT |
12 |
Receive Data, Differential PECL |
High speed serial. from GBIC |
|
+RX_DAT |
13 |
Receive Data, Differential PECL |
High speed serial. from GBIC |
|
RX_LOS |
1 |
Receiver Loss of Signal, logic high, open collector compatible,4.7k to 10kΩpull up to VDDT on host |
Low speed, from GBIC |
|
Transmitter signals |
|||
|
TGND |
8,9,17,20 |
Transmitter Ground (may be connected with RGND internally) |
Ground, to GBIC |
|
VDDT |
16 |
Transmitter +3.3/5 volt (may be connected with VDDR in GBIC) |
Power, to GBIC |
|
-TX_DAT |
18 |
Transmit Data, Differential PECL |
High speed serial, to GBIC |
|
+TX_DAT |
19 |
Transmit Data, Differential PECL |
High speed serial, to GBIC |
|
TX_DISABLE |
7 |
Transmitter Disable, logic high, open collector Compatible,4.7k to 10kΩ pull up to VDDT on GBIC |
Low speed, to GBIC |
|
TX_FAULT |
10 |
Transmitter,Fault,logic high, open collector compatible,4.7k to 10kΩ pull up to VDDT on host |
Low speed, from GBIC |
|
Control signals |
|||
|
MOD_DEF(0) |
4 |
TTL low, output |
Please reference SFF-8053,Annex D; Module definition”4” |
|
MOD_DEF(1) |
5 |
SCL serial clock signal, input |
|
|
MOD_DEF(2) |
6 |
SDA serial data signal, input/output |
|
Block Diagram of Transceiver
Mechanical Dimensions
Ordering information
|
Part number |
Product Description |
|
SPT-G151G-70 |
1550nm, 1.25Gbps, 70km, 0°C~+70°C |
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