Multi-rate Single Fiber Bi-Directional Gigabit Ethernet SFP

Multi-rate Single Fiber Bi-Directional Gigabit
Ethernet SFP Transceivers with Digital Diagnostics
TRXBG1LXM
Product Description
The TRXBG1LXM modules are single fiber, bi-directional SFP transceivers that provide a quick and reliable interface for 1000BASE-BX10-D/U
Gigabit Ethernet applications. Three types of modules are available: the
1310nm Fabry Perot laser-based transceiver (BX10-U), and the 1490nm or
1550nm DFB laser-based transceivers (BX10-D). The transceivers are designed to support data rates ranging from 1250Mb/s down to 125Mb/s
and are integrated with digital diagnostics monitoring, which provides
features to detect a problem before system performance is impacted. The
diagnostic functions, alarms and warning features are provided via an I2C
serial interface as described per the Multi-Source Agreement (MSA) document, SFF-8472 (Rev. 9.4).
All modules meet Class I Laser Safety requirements in accordance with
the U.S. and international standards as described in the FDA/CDRH and
IEC-60825 documents, respectively. The TRXBG1LXM transceivers connect to standard 20-pad SFP connectors for hot plug capability. This allows the system designer to make configuration or maintenance changes
by simply plugging in different types of transceivers without removing
the power supply from the host system.
The transceivers have color-coded latches that identify the TX wavelength. The MSA compliant latch offers an easy and convenient way to
release the module.
The transmitter and receiver DATA interfaces are ACcoupled internally. LVTTL Transmitter Disable control input and Loss of Signal output interfaces
are also provided.
The transceivers operate from a single +3.3V power supply over an operating case temperature range of -5°C to +70°C or -40°C to +85°C. The
package is made of metal.
Features
 Lead Free Design & Fully RoHS Compliant
 Compatible with SFP MSA
 Compliant with IEEE 802.3ah Draft 3.3 Gigabit
Ethernet 1000BASE-BX10 PMD Specifications
 Wavelengths of 1310nm, 1490nm and 1550nm
 Digital Diagnostics through Serial Interface
 Internal Calibration for Digital Diagnostics
 Distances up to 10km
 Eye Safe (Class I Laser Safety)
 Duplex LC Optical Interface
 Hot-pluggable
 TX Fault & Loss of Signal Outputs
 TX Disable Input
 Single +3.3V Power Supply
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Case Temperature 1
Commercial
Industrial
Symbol
Minimum
Maximum
Units
Tst
- 40
+ 85
°C
-5
+ 70
- 40
+ 85
Top
°C
Supply Voltage
Vcc
0
+ 4.5
V
Input Voltage
Vin
0
Vcc
V
-
-
NA
-
Lead Terminal Finish, Reflow Profile Limits and MSL
1
Measured on top side of SFP module at the front center vent hole of the cage.
An Oplink Company
RevB-PN.2009.06.25
TRXBG1LXM
Transmitter Performance Characteristics (Over Operating Case Temperature, VCC = 3.13 to 3.47V)
Parameter
Operating Data Rate
Symbol
Minimum
Typical
Maximum
Units
B
125
-
1250
Mb/s
dBm
PO
Optical Output Power
BX10-U
Center Wavelength
BX10-U
Spectral Width (-20dB)
BX10-U 2
-
- 3.0
1310
1360
1480
1490
1500
1550nm DFB
1540
1550
1560
1260 - 1280nm
-
-
2.09
-
-
2.58
-
-
0.88
-
-
0.88
-
dB
1490nm DFB
BX10-U 2
Spectral Width (RMS)
- 9.0
1260
1310nm FP
1281 - 1360nm
1480 - 1500nm
1540 - 1560nm
λC
ΔλRMS
Δλ20
nm
nm
nm
Extinction Ratio
Phi/Plo
6
-
Optical Modulation Amplitude
OMA
- 8.2
-
-
dBm
Transmitter OFF Output Power
-
-
-
- 45
dBm
RIN12OMA
-
-
- 113
dB/Hz
Relative Intensity Noise
ORLT
-
-
12
dB
Transmitter Reflectance
TR
-
-
- 12
dB
Deterministic Jitter
DJ
-
-
80
ps
TJ
-
-
227
ps
Optical Return Loss Tolerance
Total Jitter
Transmitter Output Eye
Compliant with Eye Mask Defined in IEEE 802.3ah Standard
2
Measured average power coupled into single mode fiber.
2
The 1550nm option is not IEEE 802.3ah compliant.
1
Receiver Performance Characteristics (Over Operating Case Temperature, VCC = 3.13 to 3.47V)
Parameter
Operating Data Rate
Minimum Input Optical Power (10 BER)
-12
1
Maximum Input Optical Power (10-12 BER) 1
Sensitivity as OMA
2
LOS Thresholds
Symbol
Minimum
Typical
Maximum
Units
B
125
-
1250
Mb/s
Pmin
- 20.0
- 22.0
-
dBm
Pmax
- 3.0
-
-
dBm
OMA
- 18.7
-
-
dBm
Increasing Light Input
Plos+
-
-
- 20.0
Decreasing Light Input
Plos-
- 30.0
-
-
-
0.5
-
-
LOS Hysteresis 1
dBm
dB
Stressed Sensitivity
-
- 15.4
-
-
dBm
Stressed Sensitivity as OMA
-
- 14.6
-
-
dBm
Vertical Eye-Closure Penalty
-
2.6
-
-
dB
DJ
-
-
170
ps
ps
Deterministic Jitter
TJ
Total Jitter
Wavelength of Operation
BX10-D
BX10-U
λ
-
-
266
1260
-
1360
1480
-
1560
nm
Receiver Reflectance
-
-
-
- 12
dB
Electrical 3dB Upper Cutoff Frequency
-
-
-
1500
MHz
1
2
Measured at 1250Mb/s with 27-1 PRBS and 1310nm, 1490nm & 1550nm wavelengths.
Specified with minimum extinction ratio of 6dB.
Please refer to page 4 for Laser Safety information
Oplink Communications, Inc.
2
RevB-PN.2009.06.25
TRXBG1LXM
Transmitter Electrical Interface (Over Operating Case Temperature, VCC = 3.13 to 3.47V)
Parameter
Symbol
Minimum
Input Voltage Swing (TD+ & TD-) 1
VPP-DIF
0.25
Input HIGH Voltage (TX Disable) 2
VIH
2.0
Input LOW Voltage (TX Disable)
2
VIL
0
Output HIGH Voltage (TX Fault)
3
VOH
VOL
Output LOW Voltage (TX Fault) 3
Typical
Maximum
Units
-
2.4
V
-
VCC
V
-
0.8
V
2.0
-
VCC + 0.3
V
0
-
0.8
V
Differential peak-to-peak voltage.
There is an internal 4.7 to 10kΩ pull-up resistor to VccT.
3
Open collector compatible, 4.7 to 10k Ω pull-up resistor to Vcc (Host Supply Voltage).
1
2
Receiver Electrical Interface (Over Operating Case Temperature, VCC = 3.13 to 3.47V)
Parameter
Output Voltage Swing (RD+ & RD-)
Output HIGH Voltage (LOS)
Output LOW Voltage (LOS)
Symbol
Minimum
Typical
Maximum
Units
VPP-DIF
0.6
-
2.0
V
VOH
2.0
-
VCC + 0.3
V
VOL
0
-
0.5
V
1
2
2
Differential peak-to-peak voltage across external 100Ω load.
2
Open collector compatible, 4.7 to 10kΩ pull-up resistor to Vcc (Host Supply Voltage).
1
Electrical Power Supply Characteristics (Over Operating Case Temperature, VCC = 3.13 to 3.47V)
Parameter
Symbol
Minimum
Typical
Maximum
Units
VCC
3.13
3.3
3.47
V
Supply Voltage
Supply Current
Commercial
ICC
Industrial
-
175
245
-
175
285
mA
Module Definition
MOD_DEF(0)
pin 6
MOD_DEF(1)
pin 5
MOD_DEF(2)
pin 4
Interpretation by Host
TTL LOW
SCL
SDA
Serial module definition protocol
Electrical Pad Layout
Host Board Connector Pad Layout
20
TX GND
1
TX GND
19
TD- (TX DATA IN-)
2
TX Fault
1
18
TD+ (TX DATA IN+)
3
TX Disable
2
17
TX GND
4
MOD_DEF(2)
3
16
VccTX
5
MOD_DEF(1)
4
15
VccRX
6
MOD_DEF(0)
14
RX GND
7
NO CONNECTION
6
13
RD+ (RX DATA OUT+)
8
LOS
7
12
RD- (RX DATA OUT-)
9
RX GND
8
11
RX GND
10
RX GND
9
Top of Board
Oplink Communications, Inc.
Toward
Bezel
5
10
Bottom of Board
(as viewed thru top of board)
3
20
19
18
17
16
15
Toward
ASIC
14
13
12
11
RevB-PN.2009.06.25
TRXBG1LXM
Example of SFP host board schematic
Vcc
3.3V
1µH coil or ferrite bead
(<0.2Ω series resistance)
Vcc
3.3V
+
10
0.1
+
+
10
10
TX Disable
0.1
0.1
R
16
TRXBG1LXM
8
4
5
3
6
15
100
50Ω line
TX DATA IN+
TX DATA IN-
50Ω line
R
R
2
TX Fault
LOS
MOD_DEF(2)
MOD_DEF(1)
50Ω line
18
13
19
12
R
50Ω line
MOD_DEF(0)
(100Ω to ground internally)
RX DATA OUT+
to 50Ω load
RX DATA OUTto 50Ω load
1, 9, 10, 11, 14, 17, 20
R: 4.7 to 10kΩ
Application Notes
Electrical Interface: Electrical interface: All signal interfaces
are compliant with the SFP MSA specification. The high speed
DATA interface is differential AC-coupled internally and can be
directly connected to a 3.3V SERDES IC. All low speed control
and sense output signals are open collector TTL compatible
and should be pulled up with a 4.7 - 10kΩ resistor on the host
board.
DEF(0), MOD_DEF(1) and MOD_DEF(2). Upon power up, MOD_
DEF(1:2) appear as NC (no connection), and MOD_DEF(0) is TTL
LOW. When the host system detects this condition, it activates
the serial protocol (standard two-wire I2C serial interface) and
generates the serial clock signal (SCL). The positive edge clocks
data into the EEPROM segments of the SFP that are not write
protected, and the negative edge clocks data from the SFP.
This device does not require clock stretching.
Loss of Signal (LOS): The Loss of Signal circuit monitors the
level of the incoming optical signal and generates a logic HIGH
when an insufficient photocurrent is produced.
The serial data signal (SDA) is for serial data transfer. The
host uses SDA in conjunction with SCL to mark the start and
end of serial protocol activation. The supported monitoring
functions are temperature, voltage, bias current, transmitter
power, average receiver signal, all alarms and warnings, and
software monitoring of TX Fault/LOS. The device is internally
calibrated. The data transfer protocol and the details of the
mandatory and vendor specific data structures are defined
in the SFP MSA, and SFF-8472, Rev. 9.4.
TX Fault: The output indicates LOW when the transmitter
is operating normally, and HIGH with a laser fault including
laser end-of-life. TX Fault is an open collector/drain output
and should be pulled up with a 4.7 - 10kΩ resistor on the host
board. TX Fault is non-latching (automatically deasserts when
fault goes away).
TX Disable: When the TX Disable pin is at logic HIGH, the
transmitter optical output is disabled (less than -45dBm).
Power Supply and Grounding: The power supply line should
be well-filtered. All 0.1μF power supply bypass capacitors
should be as close to the transceiver module as possible.
Serial Identification and Monitoring: The module definition
of SFP is indicated by the three module definition pins, MOD_
Laser Safety: All transceivers are Class I Laser products
per FDA/CDRH and IEC-60825 standards. They must be
operated under specified operating conditions.
Oplink Communications, Inc.
DATE OF MANUFACTURE:
This product complies with
21 CFR 1040.10 and 1040.11
Meets Class I Laser Safety Requirements
Oplink Communications, Inc.
4
RevB-PN.2009.06.25
TRXBG1LXM
Package Outline
8.9
.35
56.4
2.22 REF
13.4±0.1
.528±.004
47.5
1.870
9.9
.390
8.5±0.1
.336±.004
46335 Landing Pkwy Fremont, CA 94538 Tel: (510) 933-7200 Fax: (510) 933-7300 Email: [email protected] • www.oplink.com
6.4
.250
3.12
.123
5.3
.210
13.6
.534
45±0.20
1.772±.008
41.8±0.15
1.646±.006
Dimensions in inches [mm]
Default tolerances:
.xxx = ± .005”, .xx = ± .01”
Ordering Information
Oplink can provide a remarkable range of customized optical solutions. For detail, please contact Oplink’s Sales
and Marketing for your requirements and ordering information (510) 933-7200 or [email protected]
Model Name
Oplink Order Number
Reference
OCP P/N
Temperature Range
Latch
Color
TRB1G1EB3C00000G
TRXBG1LXDBBMH
- 5 °C to + 70°C
TRB1G1CB2C00000G
TRXBG1LXDBVM2
Typical Wavelength
Distance
Tx
Rx
Blue
1310nm
1490/1550nm
10km
- 5 °C to + 70°C
Violet
1490nm
1310nm
10km
TRB1G1CB4C00000G
TRXBG1LXDBYM5
- 5 °C to + 70°C
Yellow
1550nm
1310nm
10km
TRB1G1EB3I00000G
TRXBG1LXDABMH
- 40 °C to + 85°C
Blue
1310nm
1490/1550nm
10km
TRB1G1CB2I00000G
TRXBG1LXDAVM2
- 40 °C to + 85°C
Violet
1490nm
1310nm
10km
TRB1G1CB4I00000G
TRXBG1LXDAYM5
- 40 °C to + 85°C
Yellow
1550nm
1310nm
10km
Oplink Communications, Inc. reserves the right to make changes in equipment design or specifications without notice. Information supplied by Oplink Communications, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Oplink Communications, Inc. for its use nor for any infringements
of third parties, which may result from its use. No license is granted by implication or otherwise under any patent right of Oplink Communications, Inc.
RevB-PN.2009.06.25
© 2008, Oplink Communications, Inc.
5