CWDM Optical Transceiver
TRPV3GKERx000xxG
Pb
Product Description
The TRPV3GKERx000xxG is an optical transceiver module designed to
transmit and receive electrical and optical serial digital signals as defined
in SMPTE 297-2006. The TRPV3GKERx000xxG is specifically designed for
robust performance in the presence of SDI pathological patterns for SMPTE
259M, SMPTE 344M, SMPTE 292M and SMPTE 424M serial rates.
The transmitter uses CWDM DFB lasers with wavelength options ranging
from 1271nm to 1611nm to provide error-free transmission of signals from
50Mbps to 3Gbps over single mode fiber.
Diagnostics monitoring functionality (alarm and warning features) are
integrated into the design via an I
2
C serial interface per the Multi-Source
Agreement (MSA) SFF-8472, Rev. 9.4.
Configured for video pin-outs, these multi-rate 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.
All modules satisfy Class I Laser Safety requirements in accordance with the
U.S. FDA/CDRH and international IEC-60825 standards.
Features
CWDM (1271 to 1611nm) transmitter with a PIN
ROSA in one SFP transceiver package
Standard video pin-out
Robust error-free transmission of signals from
50Mbps to 3Gbps for up to 50km (single-mode
fiber)
Excellent optical receive sensitivity with video
pathological patterns for SD-SDI, HD-SDI and
3G-SDI
Digital diagnostics and control via I²C interface
Low power consumption
RoHS compliant
SMPTE 297-2006 compatible
Absolute Maximum Ratings
Parameter
Storage Temperature Range
Case Operating Temperature
1
Operating Relative Humidity
2
Supply Voltage Range
1
2
Symbol
T
ST
“Commercial”
“Extended”
T
OP
RH
V
CC
Minimum
- 40
-5
-5
5
- 0.5
Maximum
+ 85
+ 70
+ 85
95
+4
Units
°C
°C
°C
%
V
Measured on top side of SFP module at the front center vent hole of the cage.
Non condensing
An Oplink Company
S0313. Rev.01. (web) 2012-05-11
TRPV3GKERx000xxG
Transmitter Performance Characteristics
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Parameter
Operating Data Rate
Average Optical Output Power with 50% duty cycle
(coupled into single mode fiber)
Extinction Ratio
Symbol
B
Po
ER
Minimum
0.05
0
8.2
1264.5
1284.5
1304.5
1324.5
1344.5
1364.5
1384.5
1404.5
Center Wavelength
λ
C
1424.5
1444.5
1464.5
1484.5
1504.5
1524.5
1544.5
1564.5
1584.5
1604.5
Spectral Width (- 20dB)
Side Mode Suppression Ratio
2.97Gb/s, 1.485Gb/s,
270Mb/s, PRBS 2
23
-1
Optical Signal Intrinsic
Jitter
1
2.97Gb/s SMPTE 424M
Pathological
1.485Gb/s SMPTE 292M
Pathological
270Mb/s, SMPTE 259M
Pathological
Optical Signal Rise Time
(20% to 80%)
2
SMPTE 424M 2.97Gb/s
SMPTE 292M 1.485Gb/s
SMPTE 259M 270Mb/s
SMPTE 424M 2.97Gb/s
SMPTE 292M 1.485Gb/s
SMPTE 259M 270Mb/s
RIN
-
tf
tr
JG
-
-
-
-
-
-
-
-
-
-
60
110
130
175
300
130
175
300
-
-
120
200
180
270
800
180
270
800
- 117
2.0
dB/Hz
dB
ps
ps
Δλ
20
SMSR
-
30
-
-
Typical
-
-
-
1271
1291
1311
1331
1351
1371
1391
1411
1431
1451
1471
1491
1511
1531
1551
1571
1591
1611
-
-
40
50
Maximum
3
+ 5.0
-
1277.5
1297.5
1317.5
1337.5
1357.5
1377.5
1397.5
1417.5
1437.5
1457.5
1477.5
1497.5
1517.5
1537.5
1557.5
1577.5
1597.5
1617.5
1.0
-
60
90
ps
nm
dB
nm
Units
Gb/s
dBm
dB
Optical Signal Fall Time
(20% to 80%)
2
Relative Intensity Noise
Dispersion Penalty
1
3
2
3
As specified in SMPTE 259M, SMPTE 344M, SMPTE 292, or SMPTE 424M for the corresponding electrical signal. Test method shall conform to SMPTE
RP 184
Rise/fall times are measured following a fourth-order Bessel-Thompson filter with a 3dB point at 0.75 x data rate in MHz
Specified at 1000ps/nm dispersion, which corresponds to the approximate worst-case dispersion for 50km G.652/G.654 fiber over the center wave-
length range of 1464.5-1617.5nm.
Oplink Communications, Inc
2
S0313. Rev.01. (web) 2012-05-11
TRPV3GKERx000xxG
Receiver Performance Characteristics
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Parameter
Data Rate
Center Wavelength
Sensitivity
Overload
LOS Thresholds
LOS Hysteresis
Maximum Back Reflection
Input Power Monitoring Accuracy
1
2
Symbol
B
λ
C
Minimum
0.05
1260
-
0
-
- 31
0.5
-
-2
Typical
-
-
- 24
-
-
-
-
-
-
Maximum
3
1620
- 21
-
- 23
-
6
- 27
+2
Units
Gb/s
nm
dBm
dBm
dBm
dBm
dB
dB
dB
1
SMPTE 259M, SMPTE 344M,
SMPTE 292M Pathological,
SMPTE 424M Pathological and
PRBS 2
23
-1
Increasing Light Input
Decreasing Light Input
P
min
P
max
1
Plos+
Plos-
-
-
-
Specified at a BER of 10
-12
Specified with PRBS 2.97Gb/s signal, ER= 7dB
Electrical Characteristics
Parameter
Differential Input Voltage Swing
Output Rise and Fall time 20% to 80%
Input High Voltage
Input Low Voltage
Output HIGH Voltage (LOS)
Output LOW Voltage (LOS)
1
1
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Symbol
V
PP-DIFF
tr, tf
V
IH
V
IL
Minimum
550
-
2
0
2
0
Typical
-
-
-
-
-
-
Maximum
850
135
Vcc
0.8
Vcc
0.8
Units
mV
ps
V
V
V
V
1
V
OH
V
OL
Open collector compatible, 4.7kΩ to 10kΩ pull-up resistor to Vcc (Host Supply Voltage).
Electrical Power Supply Characteristics
Parameter
Power Supply Voltage
DC Common Mode Voltage
Power Consumption
Maximum Allowable
Power Supply Noise
0.02-1000kHz
1000-10000kHz
(Over Operating Case Temperature. V
CC
= 3.13 to 3.47V)
Minimum
3.13
0
-
-
-
Symbol
V
CC
V
CM
P
W
-
Typical
3.3
-
-
-
-
Maximum
3.47
3.6
1000
66
99
Units
V
V
mW
mV
Timing Specifications
Parameter
Time to Initialize (from power on)
LOS Assert Time
LOS Negate Time
I
2
C Clock Rate
1
Symbol
t_init
t_los_on
t_los_off
-
Minimum
-
-
-
0
Typical
-
-
-
-
Maximum
300
10
10
400
1
Units
ms
ms
ms
kHz
Clock stretching is used for I
2
C signals above the MSA defined 100kHz rate.
Oplink Communications, Inc
3
S0313. Rev.01. (web) 2012-05-11
TRPV3GKERx000xxG
Electrical Pad Layout
20
19
18
17
16
15
14
13
12
11
TX Disable
TD- (TX DATA IN-)
TD+ (TX DATA IN+)
VeeTX
VccTX
VccRX
VeeRX
RD+ (RX DATA OUT+)
RD- (RX DATA OUT-)
VeeRX
Host Board Connector Pad Layout
1
2
3
4
5
6
7
8
9
10
VeeTX
TX Fault
NO CONNECTION
VeeTX
I
2
C CLK
I
2
C DATA
VeeRX
RX LOS
NO CONNECTION
NO CONNECTION
1
2
3
Toward
Bezel
20
19
18
17
16
15
14
13
12
11
Toward
ASIC
4
5
6
7
8
9
10
Top of Board
Bottom of Board
(as viewed thru top of board)
Application Notes
Electrical Interface:
Signal interfaces are compatible 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.
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.
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, average receiver signal, all alarms
and warnings, and software monitoring of 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.
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.
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
S0313. Rev.01. (web) 2012-05-11
TRPV3GKERx000xxG
Interfacing the Transceivers
Communication is via a serial 2-wire serial interface. As described in the document SFF-8472 (REV. 9.4) 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
Vcc
3.3V
1µH coil or ferrite bead
(<0.2Ω series resistance)
Vcc
3.3V
+
10
0.1
0.1
16
15
R
2
8
5
6
R
R
R
TX Fault
LOS
I
2
C CLK
I
2
C DATA
+
10
0.1
TX Disable
50Ω line
20
18
50Ω line
SFP
TX DATA IN+
TX DATA IN-
50Ω line
13
50Ω line
RX DATA OUT+
to 50Ω load
RX DATA OUT-
to 50Ω load
19
1, 4, 7, 11, 14, 17
12
R: 4.7 to 10kΩ
CAP Values in µF
No Connection: 3, 9, 10
Oplink Communications, Inc
5
S0313. Rev.01. (web) 2012-05-11
FPGA/CPLD
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