SFP TRXAG1

TRXAG1 Single Mode
Gigabit Ethernet SFP Transceivers
with Digital Diagnostics
Pb
Features
; Lead Free Design & Fully RoHS Compliant
; Compliant with IEEE 802.3z Gigabit Ethernet
1000BASE-LX PMD Specifications
; Compliant with SFP MSA
; Digital Diagnostics through Serial Interface
; Internal Calibration for Digital Diagnostics
; Distance Options to Support 10km to 80km (Please
see note on Distance in Ordering Information)
; Eye Safe (Class I Laser Safety)
; Duplex LC Optical Interface
; Loss of Signal Output & TX Disable Input
; Hot-pluggable
; Single +3.3V Power Supply
Description
The TRXAG1 SFP series of fiber optic transceivers with
integrated digital diagnostics monitoring functionality provide
a quick and reliable interface for 1000BASE-LX Gigabit
Ethernet applications. The diagnostic functions, alarm
and warning features as described in the Multi-Source
Agreement (MSA) document, SFF-8472 (Rev. 9.4), are
provided via an I2C serial interface.
loss of 0.25dB/km. All modules satisfy Class I Laser Safety
requirements in accordance with the U.S. FDA/CDRH and
international IEC-60825 standards.
The TRXAG1 transceivers connect to standard 20-pad SFP
connectors for hot plug capability. This allows the system
designer to make configuration changes or maintenance
by simply plugging in different types of transceivers without
removing the power supply from the host system.
Four options are offered with minimum optical link power
budgets of 11, 18, 22 and 24dB to support 10km to 80km
link applications. Option “LX” uses a 1310nm Fabry Perot
laser and provides a minimum optical link budget of 11dB,
corresponding to a minimum distance of 10km, assuming
fiber loss of 0.45dB/km. Option “EX” uses a 1310nm DFB
laser and provides a minimum optical link budget of 18dB,
corresponding to a minimum distance of 40km, assuming
fiber loss of 0.35dB/km. Options “YX” and “ZX” use
1550nm DFB lasers and provide a minimum optical link
budget of 22dB and 24dB respectively, which correspond
to a minimum distance of 72km and 80km, assuming fiber
The transceivers have colored bail-type latches, which offer
an easy and convenient way to release the modules. The
latch is compliant with the SFP MSA.
The transmitter and receiver DATA interfaces are ACcoupled internally. LV-TTL Transmitter Disable control input
and Loss of Signal output interfaces are also provided.
The transceivers operate from a single +3.3V power supply
over three operating case temperature ranges of -5°C to
+70°C, -40°C to +85°C, or -25°C to +85°C (for YX and ZX).
The housing is made of plastic and metal for EMI immunity.
Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
Tst
- 40
+ 85
°C
-5
+ 70
Top
- 40
+ 85
Storage Temperature
"B" option
Operating Case Temperature1
"A" option
"C" option
°C
- 25
+ 85
Supply Voltage
VCC
0
+ 5.0
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.
Optical Communication Products, Inc.
1
21737-0921, Rev. A
12-09-2005
TRXAG1 Single Mode
Transmitter Performance Characteristics (over Operating Case Temperature, VCC = 3.13 to 3.47V)
All parameters guaranteed only at typical data rate
Parameter
Symbol
B
Operating Data Rate1
3
LX
EX
YX
ZX
LX
EX
YX, ZX
Optical Output Power2
Center Wavelength
Spectral Width (RMS)
LX
Po
λc
∆λRMS
Minimum
Typical
Maximum
Units
- 9.0
- 4.5
- 2.0
0
1274
1280
1500
1250
1310
1310
1550
- 3.0
0
+ 3.0
+ 5.0
1360
1335
1580
Mb/s
-
-
2.5
nm
dBm
nm
∆λ20
1.0
nm
SMSR
30
dB
Phi /Plo
9
dB
DJ
80
ps
TJ
227
ps
RIN
- 120
dB/Hz
YX
1.2
Dispersion Penalty4
dB
ZX
1.5
Transmitter Output Eye
Compliant with Eye Mask Defined in IEEE 802.3z standard
1
Data rate ranges from 125Mb/s to 1300Mb/s. However, some degradation may be incurred in overall performance.
2
Measured average power coupled into single mode fiber (SMF).
3
For 50µm or 62.5µm multimode fiber (MMF) operation, the output power is 0.5dB less and is measured after a SMF offset-launch
mode-conditioning patch cord as specified in IEEE 802.3z.
4
Specified at 1440ps/nm (YX) and 1600ps/nm (ZX) dispersion, which corresponds to the approximate worst-case dispersion for
72km and 80km G.652/G.654 fiber over the wavelength range of 1500 to 1580nm.
Spectral Width (-20dB)
Side Mode Suppression Ratio
Extinction Ratio
Deterministic Jitter
Total Jitter
Relative Intensity Noise
EX, YX, ZX
EX, YX, ZX
Receiver Performance Characteristics (over Operating Case Temperature, VCC = 3.13 to 3.47V)
All parameters guaranteed only at typical data rate
Parameter
Operating Data Rate
Symbol
Minimum
Typical
Maximum
Units
B
-
1250
-
Mb/s
Pmin
- 20.0
- 22.5
- 24.0
-
-
dBm
Pmax
- 3.0
-
-
dBm
Plos+
-
-
- 20.0
- 22.5
dBm
-
-
- 24.0
- 30.0
-
-
- 35.0
-
-
1
LX
EX
YX, ZX
Minimum Input Optical Power
(10-12 BER)2
Maximum Input Optical Power (10-12 BER)2
LX
EX
Increasing
Light Input
YX, ZX
LOS Thresholds
Decreasing
Light Input
LX
Plos-
EX, YX, ZX
dBm
Increasing Light Input
t_loss_off
-
-
100
Decreasing Light Input
t_loss_on
-
-
100
-
0.5
-
-
dB
Deterministic Jitter
DJ
-
-
170
ps
Total Jitter
TJ
-
-
266
ps
Wavelength of Operation
λ
1100
-
1600
nm
ORL
12
-
-
dB
-
-
-
1500
MHz
LOS Timing Delay
LOS Hysteresis
Optical Return Loss
Electrical 3dB Upper Cutoff Frequency
Stressed Receiver Sensitivity
µs
Compliant with IEEE 802.3z standard
1
Data rate ranges from 125Mb/s to 1300Mb/s. However, some degradation may be incurred in overall performance.
2
Measured with 27-1 PRBS at 1250Mb/s & at 1310nm for LX, EX, and at 1550nm for YX, ZX.
Please refer to page 4 for Laser Safety information
2
21737-0921, Rev. A
12-09-2005
TRXAG1 Single Mode
Transmitter Electrical Interface (over Operating Case Temperature, VCC = 3.13 to 3.47V)
Parameter
Symbol
Minimum
Typical
Maximum
Units
V
1
VPP-DIF
0.50
-
2.4
2
Input HIGH Voltage (TX Disable)
VIH
2.0
-
VCC
V
Input LOW Voltage (TX Disable)2
VIL
0
-
0.8
V
Output HIGH Voltage (TX Fault)3
VOH
2.0
-
VCC + 0.3
V
3
VOL
0
-
0.8
V
Input Voltage Swing (TD+ & TD-)
Output LOW Voltage (TX Fault)
1
Differential peak-to-peak voltage.
2
There is an internal 4.7 to 10kΩ pull-up resistor to VccT.
3
Open collector compatible, 4.7 to 10kΩ pull-up resistor to Vcc (Host Supply Voltage).
Receiver Electrical Interface (over Operating Case Temperature, VCC = 3.13 to 3.47V)
Parameter
Symbol
Minimum
Typical
Maximum
Units
VPP-DIF
0.6
-
2.0
V
2
VOH
2.0
-
VCC + 0.3
V
2
VOL
0
-
0.5
V
Output Voltage Swing (RD+ & RD-)1
Output HIGH Voltage (LOS)
Output LOW Voltage (LOS)
1
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).
Electrical Power Supply Characteristics (over Operating Case Temperature, VCC = 3.13 to 3.47V)
Parameter
Symbol
Minimum
VCC
Supply Voltage
LX
Supply Current
ICC
EX, YX, ZX
Typical
Maximum
Units
3.13
3.3
3.47
V
-
190
245
-
200
300
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
Host Board Connector Pad Layout
Electrical Pad Layout
20
TX GND
19
TD- (TX DATA IN-)
18
1
TX GND
20
2
TX Fault
1
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
13
RD+ (RX DATA OUT+)
8
LOS
12
RD- (RX DATA OUT-)
9
RX GND
11
RX GND
10
RX GND
Top of Board
Toward
Bezel
5
6
7
8
9
Bottom of Board
(as viewed thru top of board)
3
19
18
17
16
Toward
15
ASIC
14
13
12
11
10
21737-0921, Rev. A
12-09-2005
TRXAG1 Single Mode
Example of SFP host board schematic
Vcc
3.3V
1µH coil or ferrite bead
(<0.2Ω series resistance)
Vcc
3.3V
+
10
R R R
16
0.1
0.1
+
15
10
0.1
3
TX Disable
TRXAG1
2
TX Fault
8
LOS
4
5
MOD_DEF(2)
MOD_DEF(1)
6
MOD_DEF(0)
(Internally Grounded)
50Ω line
TX DATA IN+
50Ω line
18
13
19
12
50Ω line
TX DATA IN-
R
50Ω line
RX DATA OUT+
to 50Ω load
RX DATA OUTto 50Ω load
1, 9,10,11,14,17,20
Ω
R: 4.7 to 10kΩ
Application Notes
Electrical interface: All signal interfaces are compliant with
the SFP MSA specification. The high speed DATA interface
is differential AC-coupled internally with 0.1µF, 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.
pins, MOD_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.
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.
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
that should be pulled up with a 4.7 - 10kΩ resistor on the
host board. TX Fault in non-latching (automatically
deasserts when fault goes away).
The data transfer protocol and the details of the mandatory
and vendor specific data structures are defined in SFP MSA,
and SFF-8472, Rev. 9.4.
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
Laser Safety
Laser Safety: All transceivers are Class I Laser products per
FDA/CDRH and IEC-60825 standards. They must be operated
under specified operating conditions.
Optical Communication Products, Inc.
DATE OF MANUFACTURE:
MANUFACTURED IN THE USA
This product complies with
21 CFR 1040.10 and 1040.11
Meets Class I Laser Safety Requirements
4
21737-0921, Rev. A
12-09-2005
TRXAG1 Single Mode
Package Outline
56.7
2.23 REF
0
1.27 - 0.13
+.000
.050 - .005
13.67
13.54
.54
.53
0
0.98 - 0.13
+.000
.038 - .005
6.25 0.05
.246 .002
1
.04
FRONT EDGE OF
TRANSCEIVER CAGE
47.3
1.861
8.9
.350
13.9 0.2
.546 .008
8.51
.335
1.8
.07
41.8 0.15
1.646 .006
45 0.20
1.771 .008
Dimensions in inches [mm]
Default tolerances:
.xxx = + .005”, .xx = + .01”
Ordering Information
Model Name
Operating
Temperature
Latch
Color
Nominal
Wavelength
Optical Link
Power Budget
Distance1
TRXAG1LXDBBS
- 5°C to +70°C
Blue
1310nm
11dB min.
10km
TRXAG1EXJBNS
- 5°C to +70°C
Brown
1310nm
18dB min.
40km2
TRXAG1YXHBOS
- 5°C to +70°C
Orange
1550nm
22dB min.
72km3
TRXAG1ZXIBGS
- 5°C to +70°C
Green
1550nm
24dB min.
80km3
TRXAG1LXDABS
- 40°C to +85°C
Blue
1310nm
11dB min.
10km
TRXAG1EXJANS
- 40°C to +85°C
Brown
1310nm
18dB min.
40km2
TRXAG1YXHCOS
- 25°C to +85°C
Orange
1550nm
22dB min.
72km3
TRXAG1ZXICGS
- 25°C to +85°C
Green
1550nm
24dB min.
80km3
1
The indicated transmission distance is for guidelines only, not guaranteed. The exact distance is dependent on the fiber loss, connector and
splice loss, and allocated system penalty. Longer distances can be supported if the optical link power budget is satisfied.
2
Assuming a total connector and splice loss of 2dB, total system penalty of 2dB and fiber cable loss of 0.35dB/km.
3
Assuming a total connector and splice loss of 2dB, total system penalty of 2dB and fiber cable loss of 0.25dB/km.
Optical Communication Products, Inc.
6101 Variel Avenue, Woodland Hills, CA 91367, Tel.: 818-251-7100, FAX: 818-251-7111, www.ocp-inc.com
Optical Communication Products, Inc. reserves the right to make changes in equipment design or specifications without notice. Information supplied by Optical Communication
Products, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Optical Communication Products, 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 Optical Communication Products, Inc.
© 2005, Optical Communication Products, Inc.
5
21737-0921, Rev. A
12-09-2005