The TPD2XGKZRxxG is an enhanced small form factor pluggable (SFP+) fiber
optic transceiver with digital diagnostics monitoring functionality (DDM).
Supporting Ethernet and Fiber Channel standards with dense wavelength
division multiplexing (DWDM) wavelength makes it ideally suited for high
capacity data-com and storage area network applications. DDM functionality
(alarm and warning features) is integrated into the design via an I
2
C serial
interface per the Multi-Source Agreement (MSA) SFF-8472, Rev. 10.4.
Each transceiver utilizes an electro absorption modulator integrated laser
(EML) with an operating wavelength at ITU 100GHz (0.8nm) grids offset by
50GHz. The transceiver supports data rates ranging from 11.3Gbps down
to 8Gbps. It provides an excellent solution for data transmission at DWDM
wavelength over up to 80km single mode fiber. The low power consumption
and excellent EMI performance enable system design with high port density.
The product is RoHS compliant and is designed and tested in accordance
with industry safety standards. The transceiver is Class I Laser product per U.S.
FDA/CDRH and international IEC-60825 standards.
The TPD2XGKZRxxG transceiver connects 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
transceivers without removing the power supply from the host system. The
transmitter and receiver DATA interfaces are internally AC-coupled. LV-TTL
Transmitter Disable control input and Loss of Signal (LOS) output interfaces
are also provided.
The transceiver has bail-type latch, which offers an easy and convenient way
to release the modules. The latch is compliant with the SFP MSA.
The transceiver operates from a single +3.3V power supply over an operating
case temperature range of 5°C to +70°C (commercial), or -5°C to +85°C
(extended) or -40°C to +85°C (industrial). The housing is made of metal for
EMI immunity.
Pb
Features
Temperature-stablized DWDM EML transmitter
Transmission distance up to 80km (SM Fiber)
Low power consumption
Wide case operating temperature range
Compliant to SFP+ Electrical MSA SFF-8431
Compliant to SFP+ Mechanical MSA SFF-8432
Digital Diagnostics Monitoring (DDM) through
Serial Interface comply with SFF-8472, Rev. 10.4
RoHS 6/6 compliant
Laser Class 1 IEC/CDRH compliant
Absolute Maximum Ratings
Parameter
Storage Temperature Range
“Commercial”
Operating Case Temperature
1
Operating Relative Humidity
2
Supply Voltage Range
1
2
Symbol
T
ST
“Extended”
“Industrial”
RH
V
CC
T
OP
Minimum
- 40
-5
-5
- 40
0
- 0.5
Maximum
+ 85
+ 70
+ 85
+ 85
85
+ 3.6
Units
°C
°C
%
V
Measured on top side of SFP+ module at the front center vent hole of the cage.
Non condensing
An Oplink Company
S0255. Rev.03. (web) 2012-08-08
TPD2XGKZRxxG
Transmitter Performance Characteristics
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Parameter
Data Rate
Center Wavelength
Extinction Ratio
Relative Intensity Noise
Side Mode Suppression Ratio
Optical Return Loss Tolerance
Optical Output Eye
1
Symbol
B
λ
C
P
Avg
ER
RIN
SMSR
-
Minimum
-
0
8.2
-
30
-
Typical
10.3125
Maximum
-
+5
-
- 128
-
- 21
Units
Gb/s
nm
dBm
dB
dB/Hz
dB
dB
1
See Ordering Information Table
-
-
-
-
-
Compliant with IEEE 802.3ae
Average Optical Output Power
BOL : ±0.05nm from ITU grid; EOL: ±0.1nm from ITU grid.
Receiver Performance Characteristics
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Parameter
Data Rate
Wavelength of Operation
Receiver Sensitivity @ 10.3125Gb/s
1
1
Symbol
B
λ
P
min_BB
P
min_Fiber
P
max
-
-
Minimum
-
1530
-
-
-8
-
0.5
-
- 38
Typical
10.3125
-
-
-
-
-
-
-
-
Maximum
-
1565
- 23
- 20
-
- 27
-
- 25
-
Units
Gb/s
nm
dBm
dBm
dBm
dB
dB
dBm
Receiver Sensitivity with 80km Fiber@10.3125Gb/s
Maximum Input Optical Power (10
-12
BER)
Receiver Reflectance
LOS Hysteresis
LOS Thresholds
1
Increasing Light Input
Decreasing Light Input
P
los+
P
los-
Specified with BER <1x10
-12
and PRBS 2
31
-1.
Note: The specified characteristics are met within the recommended range of operation. Unless otherwise noted typical data are quoted at nominal voltage and
+25°C ambient temperature.
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
2
S0255. Rev.03. (web) 2012-08-08
TPD2XGKZRxxG
Transmitter Electrical Characteristics
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Parameter
Differential Input Impedance
Differential Input Voltage Swing
Input HIGH Voltage (TX Disable)
1
Input LOW Voltage (TX Disable)
1
Output HIGH Voltage (TX Fault)
2
Output LOW Voltage (TX Fault)
2
1
2
Symbol
Z
d
V
PP-DIFF
V
IH
V
IL
V
OH
V
OL
Minimum
-
180
2.0
0
2.0
0
Typical
100
-
-
-
-
-
Maximum
-
700
V
CC
0.8
V
CC
+ 0.3
0.8
Units
Ω
mV
V
V
V
V
There is an internal 4.7kΩ to 10kΩ pull-up resistor to VccT.
Open collector compatible, 4.7kΩ to 10kΩ pull-up resistor to Vcc (Host Supply Voltage).
Receiver Electrical Interface
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Parameter
Differential Output Impedance
Differential Output Swing
Output Rise and Fall time (20% to 80%)
Output HIGH Voltage (LOS)
Output LOW Voltage (LOS)
1
Symbol
Z
d
V
PP-DIFF
t
RH
, t
FH
V
OH
V
OL
Minimum
-
300
28
V
CC
- 1.3
0
Typical
100
-
-
-
-
Maximum
-
850
-
V
CC
+ 0.3
0.8
Units
Ω
mV
ps
V
V
1
1
Open collector compatible, 4.7kΩ to 10kΩ pull-up resistor to Vcc (Host Supply Voltage).
Electrical Power Supply Characteristics
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Parameter
Power Supply Voltage
DC Common Mode Voltage
Supply Current
Power Consumption
C-temp
E/I-temp
Symbol
V
CC
V
CM
I
VCC
P
W
Minimum
3.13
0
-
-
Typical
3.30
-
365
1.2
Maximum
3.47
3.60
-
1.8
2.1
Units
V
V
mA
W
Note: The specified characteristics are met within the recommended range of operation. Unless otherwise noted typical data are quoted at nominal voltage and
+25°C ambient temperature.
Connector Pin-out
V
EE
R
10
9
8
7
6
5
4
3
2
1
11
12
13
14
15
V
EE
R
RD-
RD+
V
EE
R
V
CC
R
V
CC
T
V
EE
T
TD+
TD-
V
EE
T
RS1
RX_LOS
RS0
MOD-ABS
SCL
SDA
TX_D
ISABLE
TX_F
AULT
V
EE
T
T
OWARD
H
OST
16
17
18
19
20
T
OWARD
B
EZEL
Oplink Communications, Inc
3
S0255. Rev.03. (web) 2012-08-08
TPD2XGKZRxxG
Module Pin Description
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Logic
-
LVTTL-O
LVTTL-I
LVTTL-I/O
LVTTL-I/O
-
LVTTL-I
LVTTL-O
LVTTL-I
-
-
CML-O
CML-O
-
-
-
-
CML-I
CML-I
-
Symbol
VeeT
TX_Fault
TX_Disable
SDA
SCL
MOD-ABS
RS0
RX_LOS
RS1
VeeR
VeeR
RD-
RD+
VeeR
VccR
VccT
VeeT
TD+
TD-
VeeT
Description
Module Transmitter Ground
Module Transmitter Fault
Transmitter Disable; Turns off transmitter laser output
2-Wire Serial Interface Data Line
2-Wire Serial Interface Clock
Module Definition, Grounded in the module
No function implemented
Receiver Loss of Signal Indication
No function implemented
Module Receiver Ground
Module Receiver Ground
Receiver Inverted Data Output
Receiver Data Output
Module Receiver Ground
Module Receiver 3.3V Supply
Module Transmitter 3.3V Supply
Module Transmitter Ground
Transmitter Non-Inverted Data Input
Transmitter Inverted Data Input
Module Transmitter Ground
Application Notes
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 4.7k
Ω
- 10k
Ω
resistor on the host
board.
Loss of Signal (LOS):
The Loss of Signal circuit monitors the
level of the incoming optical signal and generates logic HIGH
when an insufficient photocurrent is produced.
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 4.7k
Ω
- 10k
Ω
resistor on the
host board.
TX_Disable:
When the TX Disable pin is at logic HIGH,
the transmitter optical output is disabled. The laser is also
disabled if this line is left floating, as it is pulled high inside
the transceiver.
Serial Identification and Monitoring:
The module
definition of SFP is indicated by the MOD_ABS pin and the
2-wrie serial interface. Upon power up, the 2-wrie interface
appears as NC (no connection), and MOD_ABS is TTL LOW.
When the host system detects this condition, it activates the
serial protocol (standard two-wire I
2
C serial interface) and
generates the serial clock signal (SCL). The positive edge
clocks data into the EEPROM segments of the device that
are not write protected, and the negative edge clocks data
from the device. 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. 10.4.
Power Supply and Grounding:
The power supply line
should be well-filtered. All power supply bypass capacitors
should be as close to the transceiver module as possible.
Oplink Communications, Inc
4
S0255. Rev.03. (web) 2012-08-08
TPD2XGKZRxxG
Interfacing the Transceivers
Communication is via a serial 2-wire serial interface. As described in the document SFF-8472 (REV. 10.4) there are two distinct address spaces:
Base Address A0(hex)
Byte Address
Content
Byte Address
Base Address A2(hex)
Content
0 – 95
96 – 127
128 – 255
Serial Transceiver ID as defined in SFP MSA
OPLINK Specific
Reserved
0 - 55
56 - 95
96 – 119
120 – 127
128 – 247
248 - 255
Alarm & Warnings thresholds & limits
External calibration constants (not used)
Values from real time diagnostic monitoring
Not used
Customer specific, writable area
Not used
Application Schematics
Recommended electrical connections to transceiver are shown below.
TD+
50 line
50 line
50 line
50 line
ASIC/
SerDes
+3.3V
R
+3.3V
R
+3.3V
R
4.7µH
+3.3V
0.1µF
+
22µF
0.1µF
VccR
TD-
RD+
4.7µH
+3.3V
0.1µF
+
22µF
0.1µF
VccT
RD-
SFP+
SCL, SDA, MOD_ABS
TX_Fault
RX_LOS
VeeT, VeeR
R: 4.7k to 10k
ESD & Electromagnetic Compatibility
Requirements
Standard
Status
Electro Static Discharge to the Electrical Pins (ESD)
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