Born Electronics

1250Mbps 1550nm Single Mode 160 SFP Transceive BT-SFP-IG160-1.25G

BORN’s BT-SFP-IG160-1.25G Transceiver is a high performance, cost effective module which have a duplex LC optics interface. Standard AC coupled CML for highspeed signal and LVTTL control and monitor signals. The receiver section uses an APD receiver and the transmitter uses a 1550 nm DFB laser, up to 37dB link budge ensure this module 1000Base Ethernet 160km application.

APPLICATIONS

  • Metro/Access Networks
  • 1.25 Gb/s 1000Base-EZX Ethernet
  • 1×Fibre Channel
  • Other Optical Links

Features

  • Up to 1.25Gb/s Data Links
  • Hot-Pluggable
  • Duplex LC connector
  • Up to 160km on 9/125μm SMF
  • 1550nm DFB laser transmitter
  • APD Receiver
  • Single +3.3V Power Supply
  • Monitoring Interface Compliant with SFF-8472
  • Maximum Power <1W
  • Industrial /Extended/ Commercial operating temperature range:
  • -40°C to 85°C/-5°C to 85°C/- 0°C to 70°C Version available
  • RoHS compliant and Lead Free

Specification

Absolute Maximum Ratings

 

Parameter Symbol Min. Typical Max. Unit
Storage Temperature TS -40   +85 °C
Supply Voltage VCC -0.5   4 V
Relative Humidity RH 0   85 %

Recommended Operating Environment

 

Parameter   Symbol Min. Typical Max. Unit
 

 

Case operating Temperature

Industrial  

 

TC

-40   85 °C
Extended -5   85 °C
Commercial 0   +70 °C
Supply Voltage VCC 3.135     3.465 V
Supply Current Icc       300 mA
Inrush Current Isurge       Icc+30 mA
Maximum Power Pmax       1 W

Electrical Characteristics (TOP = -40 to 85°C, VCC = 3.135 to 3.465 Volts)

 

Parameter Symbol Min. Typical Max. Unit Note
Transmitter Section:
Input differential impedance Rin 90 100 110    
Single ended data input swing Vin PP 250   1200 mVp-p  
Transmit Disable Voltage VD Vcc – 1.3   Vcc V 2
Transmit Enable Voltage VEN Vee   Vee+ 0.8 V  
Transmit Disable Assert Time Tdessert     10 us  
Receiver Section:
Single ended data output swing Vout,pp 250   800 mv 3
LOS Fault Vlosfault Vcc – 0.5   VCC_host V 5
LOS Normal Vlos norm Vee   Vee+0.5 V 5
Power Supply Rejection PSR 100     mVpp 6

 

Notes:

AC coupled.

Or open circuit.

Into 100 ohm differential termination. 20 – 80 %

LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.

All transceiver specifications are compliant with a power supply sinusoidal modulation of 20 Hz to

1.5MHz up to specified value applied through the power supply filtering network shown on page 23 of

the Small Form-factor Pluggable (SFP) Transceiver Multi-Source Agreement (MSA), September 14, 2000.

 

Optical Parameters(TOP = -40 to 85°C, VCC = 3.135 to 3.465 Volts)

 

Parameter Symbol Min. Typical Max. Unit Note
Transmitter Section:
Center Wavelength λc 1530 1550 1570 nm  
Spectral Width σ     1 nm  
Side Mode Suppression Ratio SMSR 30     dB  
Optical Output Power Pout +2   +5 dBm 1
Extinction Ratio ER 9     dB  
Optical Rise/Fall Time tr / tf     260 ps 2
Relative Intensity Noise RIN     -120 dB/Hz  
Output Eye Mask Compliant with IEEE802.3 z (class 1 laser safety)  
Receiver Section:
Optical Input Wavelength λc 1270   1610 nm  
Receiver Overload Pol -7     dBm 4
RX Sensitivity Sen     -35 dBm 4
RX_LOS Assert LOS A -45     dBm  
RX_LOS De-assert LOS D     -36 dBm  
RX_LOS Hysteresis LOS H 0.5     dB  
General Specifications:
Data Rate BR   1.25   Gb/s  
Bit Error Rate BER     10-12    
Max. Supported Link Length on 9/125μm SMF@1.25Gb/s LMAX   160   km  
Total System Budget LB 37     dB  

 

Notes:

  • The optical power is launched into SMF.
  • 20-80%.
  • Jitter measurements taken using Agilent OMNIBERT 718 in accordance with GR-253.
  • Measured with PRBS 27-1 at 10-12 BER

 

Pin Function Definitions

 

Pin No Name Function Plug Seq Notes
1 VeeT Transmitter Ground 1 1
2 TX Fault Transmitter Fault Indication 3  
3 TX Disable Transmitter Disable 3 2
4 MOD-DEF2 Module Definition 2 3
5 MOD-DEF1 Module Definition 1 3 3
6 MOD-DEF0 Module Definition 0 3 3
7 Rate Select Not Connected 3 4
8 LOS Loss of Signal 3 5
9 VeeR Receiver Ground 1 1
10 VeeR Receiver Ground 1 1
11 VeeR Receiver Ground   1
12 RD- Inv. Received Data Out 3 6
13 RD+ Received Data Out 3 6
14 VeeR Receiver Ground 3 1
15 VccR Receiver Power 2 1
16 VccT Transmitter Power 2  
17 VeeT Transmitter Ground 1  
18 TD+ Transmit Data In 3 6
19 TD- Inv. Transmit In 3 6
20 VeeT Transmitter Ground 1  

Notes:

  • Circuit ground is internally isolated from chassis ground.
  • Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
  • Should be pulled up with 4.7k – 10 kohms on host board to a voltage between 2.0V and 3.6V. MOD_DEF(0) pulls line low to indicate module is plugged in.
  • Rate select is not used
  • LOS is open collector output. Should be pulled up with 4.7k – 10 kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
  • AC Coupled

 

SFP Module EEPROM Information and Management

The SFP modules implement the 2-wire serial communication protocol as defined in the SFP -8472. The serial ID information of the SFP modules and Digital Diagnostic Monitor parameters can be accessed through the I2C interface at address A0h and A2h. The memory is mapped in Table 1. Detailed ID information (A0h) is listed in Table 2. And the DDM specification at address A2h.

For more details of the memory map and byte definitions, please refer to the SFF-8472, “Digital Diagnostic Monitoring Interface for Optical Transceivers”. The DDM parameters have been internally calibrated.

 

 

TABLE 2 – EEPROM SERIAL ID MEMORY CONTENTS (A0H)

 

Data Address Length (Byte) Name of Length Description and Contents
Base ID Fields
0 1 Identifier Type of Serial transceiver (03h=SFP)
1 1 Reserved Extended identifier of type serial transceiver (04h)
2 1 Connector Code of optical connector type (07=LC)
3 – 10 8 Transceiver  
11 1 Encoding NRZ(03h)
12 1 BR, Nominal Nominal baud rate, unit of 100Mbps
13-14 2 Reserved (0000h)
15 1 Length(9um) Link length supported for 9/125um fiber, units of 100m
16 1 Length(50um) Link length supported for 50/125um fiber, units of 10m
17 1 Length(62.5um) Link length supported for

62.5/125um fiber, units of 10m

18 1 Length(Copper) Link length supported for copper, units of meters
19 1 Reserved  
20 – 35 16 Vendor Name SFP vendor name: YXFIBER
36 1 Reserved  
37- 39 3 Vendor OUI SFP transceiver vendor OUI ID
40 – 55 16 Vendor PN Part Number: “BT-SFP-IG160-1.25G” (ASCII)
56 – 59 4 Vendor rev Revision level for part number
60-62 3 Reserved  
63 1 CCID Least significant byte of sum of data in address 0-62

 

Extended ID Fields
 

64-65

 

2

 

Option

Indicates which optical SFP signals are implemented (001Ah = LOS, TX_FAULT, TX_DISABLE all supported)
66 1 BR, max Upper bit rate margin, units of %
67 1 BR, min Lower bit rate margin, units of %
68-83 16 Vendor SN Serial number (ASCII)
84-91 8 Date code YXFIBER’s Manufacturing date code
92-94 3 Reserved  
95 1 CCEX Check code for the extended ID Fields (addresses 64 to 94)
Vendor Specific ID Fields
96-127 32 Readable YXFIBER specific date, read only
128-255 128 Reserved Reserved for SFF-8079

 

Digital Diagnostic Monitor Characteristics

 

Data Address Parameter Accuracy Unit
96-97 Transceiver Internal Temperature ±3.0 °C
98-99 VCC3 Internal Supply Voltage ±3.0 %
100-101 Laser Bias Current ±10 %
102-103 Tx Output Power ±3.0 dB
104-105 Rx Input Power ±3.0 dB

 

Regulatory Compliance

The BT-SFP-IG160-1.25G complies with international Electromagnetic Compatibility (EMC) and international safety requirements and standards (see details in Table following).

Electrostatic Discharge (ESD) to the Electrical Pins  

MIL-STD-883E Method 3015.7

 

Class 1(>1000 V)

Electrostatic Discharge (ESD) to the Duplex LC Receptacle  

IEC 61000-4-2 GR-1089-CORE

 

Compatible with standards

 

Electromagnetic Interference (EMI)

FCC Part 15 Class B EN55022 Class B (CISPR 22B) VCCI Class B  

Compatible with standards

 

Laser Eye Safety

FDA 21CFR 1040.10 and 1040.11 EN60950, EN (IEC) 60825-1,2 Compatible with Class 1 laser product.

Panel Diagram

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