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3Gbps Video Single Tx SFP Transceiver With DDM SPT-P1T15V3-L40D

1550nm 1G fiber optic transceiver

SPT-P1T15V3-L40D

3Gbps Video SFP Optical Transmitter, 40km Reach

 Features
HD-SDI SFP Transceiver available
SD-SDI SFP Transceiver available
3G-SDI SFP Transceiver available
SMPTE 297-2006 Compatible.
Metal enclosure for Lower EMI
1550nm DFB laser
Supports video pathological patterns for SD-SDI, HD-SDI and 3G-SDI
Digital Diagnostic functions available through the I2C interface
Compatible with RoHS
+3.3V single power supply
Operating case temperature: Standard: 0 to +70°C

 Applications
SMPTE 297-2006 Compatible Electrical-to-Optical Interfaces.
HDTV/SDTV Service Interfaces.

 Description
The video series transceivers are high performance, cost effective modules for duplex video transmission application over single mode fiber.
The Transmitter is designed to transmit data rates from 50Mbps to 2.97Gbps and 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 module is fully compliant with SMPTE 297M-2006.
The transmitter is consists of two sections: a DFB laser transmitter and MCU control unit. Al modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA.

  Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Unit

Supply Voltage

Vcc

-0.5

4.5

V

Storage Temperature

Ts

-40

+85

°C

Operating Humidity

-

5

85

%

  Recommended Operating Conditions

Parameter

Symbol

Min

Typical

Max

Unit

Operating Case Temperature

Standard

Tc

0

 

+70

°C

Power Supply Voltage

Vcc

3.13

3.3

3.47

V

Power Supply Current

Icc

 

 

350

mA

Data Rate

 

 

3

 

Gbps

  Optical and Electrical Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Centre Wavelength

λc

1480

1550

1580

nm

 

Spectral Width(-20dB)

σ

 

 

1

nm

 

Side Mode Suppression Ratio

SMSR

30

 

 

dB

 

Average Output Power

Pout

-2

0

+3

dBm

 

Extinction Ratio

ER

5

8

 

dB

 

Rise/Fall Time (20%~80%)

SD-SDI

tr/tf

 

 

1500

ps

 

HD-SDI

 

 

270

2

3G-SDI

 

 

135

 

Total Output Jitter

PRBS and colorbar

SD-SDI

 

 

70

200

ps

 

HD-SDI

 

 

50

135

 

3G-SDI

 

 

70

100

 

Pathological

SD-SDI

 

 

200

300

 

HD-SDI

 

 

115

 

 

3G-SDI

 

 

120

 

 

Data Input Swing Differential

 

VIN

400

 

1800

mV

3

Input Differential Impedance

 

ZIN

90

100

110

Ω

 

TX Disable

Disable

 

 

2.0

 

Vcc

V

 

Enable

 

 

0

 

0.8

V

 

TX Fault

Fault

 

 

2.0

 

Vcc

V

 

Normal

 

 

0

 

0.8

V

 

Notes:
1. The optical power is launched into SMF.
2. Rise and fall times, 20% to 80%, are measured following a fourth-order Bessel-Thompson filter with a bandwidth of 0.75 x lock frequency corresponding to the serial data rate
3. PECL input, internally AC-coupled and terminated.
4. Internally AC-coupled

  Timing and Electrical

Parameter

Symbol

Min

Typical

Max

Unit

TX Disable Negate Time

t_on

 

 

1

ms

TX Disable Assert Time

t_off

 

 

10

µs

Time To Initialize,Including Reset of TX Fault

t_init

 

 

300

ms

TX Fault Assert Time

t_fault

 

 

100

µs

TX Disable To Reset

t_reset

10

 

 

µs

Serial ID Clock Rate

f_serial_clock

 

 

280

KHz

MOD_DEF(0:2)-High

VH

2

 

Vcc

V

MOD_DEF(0:2)-Low

VL

 

 

0.8

V

  Diagnostics Specification

Parameter

Range

Unit

Accuracy

Calibration

Temperature

0 to +70

°C

±3°C

Internal/External

Voltage

3.0 to 3.6

V

±3%

Internal/External

Bias Current

0 to 100

mA

±10%

Internal/External

TX Power

-5 to 0

dBm

±3dB

Internal/External

I2C Bus Interface
The I2C bus interface uses the 2-wire serial CMOS E2PROM protocol. The serial interface meets the following specifications:
1. Support a maximum clock rate of 280 KHz.
2. Input/output levels comply with LVCMOS/LVTTL or compatible logics.
  Low: 0 – 0.8 V High: 2.0 – 3.3 V Undefined: 0.8 – 2.0 V

Pin Definitions
SFP MSA Type
SFP MSA Type
 Pin Descriptions (SFP MSA Type)

Pin

Signal Name

Description

Plug Seq.

Notes

1

VEET

Transmitter Ground

1

 

2

TX FAULT

Transmitter Fault Indication

3

Note1

3

TX DISABLE

Transmitter Disable

3

Note2

4

MOD_DEF(2)

SDA Serial Data Signal

3

Note3

5

MOD_DEF(1)

SCL Serial Clock Signal

3

Note3

6

NC

Not Connected

 

 

7

NC

Not Connected

 

 

8

NC

Not Connected

 

 

9

NC

Not Connected

 

 

10

NC

Not Connected

 

 

11

NC

Not Connected

 

 

12

NC

Not Connected

 

 

13

NC

Not Connected

 

 

14

NC

Not Connected

 

 

15

NC

Not Connected

 

 

16

VCCT

Transmitter Power Supply

2

 

17

VEET

Transmitter Ground

1

 

18

TD+

Transmit Data In

3

Note4

19

TD-

Inv. Transmit Data In

3

Note4

20

VEET

Transmitter Ground

1

 

Nona Standard Type
Nona Standard Type
 Pin Descriptions (Non Standard Type)

Pin

Signal Name

Description

Plug Seq.

Notes

1

VEE_TX1

Transmitter1 Ground

1

 

2

TX1_FAULT

Transmitter1 Fault Indication

3

Note1

3

NC

Not Connected

 

 

4

VEE_TX1

Transmitter1 Ground

1

 

5

I2CCLK

SCL Serial Clock Signal

3

Note3

6

I2CDATA

SDA Serial Data Signal

3

Note3

7

NC

Not Connected

 

 

8

NC

Not Connected

 

 

9

NC

Not Connected

 

 

10

NC

Not Connected

 

 

11

NC

Not Connected

 

 

12

NC

Not Connected

 

 

13

NC

Not Connected

 

 

14

NC

Not Connected

 

 

15

NC

Not Connected

 

 

16

VCC_TX1

Transmitter Power1 Supply

2

 

17

VEE_TX1

Transmitter1 Ground

1

 

18

TD1+

Transmit1 Data In

3

Note4

19

TD1-

Inv. Transmit1 Data In

3

Note4

20

TX1_DIS

Transmitter1 Disable

3

Note2

Notes:
  Plug Seq.: Pin engagement sequence during hot plugging.
1) TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; Logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V.
2) TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7k~10kΩ resistor. Its states are:
Low (0 to 0.8V): Transmitter on
(>0.8V, < 2.0V): Undefined
High (2.0 to 3.465V): Transmitter Disabled
Open: Transmitter Disabled
3) They should be pulled up with a 4.7k~10kΩ resistor on the host board. The pull-up voltage shall be VCC_TX1or VCC_TX2.
I2C CLK is the clock line of two wire serial interfaces for serial ID
I2C DATA is the data line of two wire serial interface for serial ID
4) TD1/2-/+: These are the differential transmitter inputs. They are internally AC-coupled, differential lines with 100Ω differential termination inside the module.

Serial ID Field Memory Map
The module serial Id and calibration information is stored in the E2PROM of the SFP supervising device using the address map.

Byte Adder

Bit Size

Name

Description

Value

(hex)

0

1

Identifier

Type of transceiver

82

1

1

Ext. Identifier

Extended identifier of type of transceiver

04

2

1

Connector

Code for connector type

07

3

1

Standards Compliance

For SMPTE259M/344M/292M/424M and SMPTE297M

41

4~10

7

Transceiver

Code for electronic or optical compatibility, Not applicable.

 

11

1

Encoding

Code for serial encoding algorithm

30

12

1

BR,Nominal

Nominal signaling rate, units of 100MBd.

1E

13

1

Rate Identifier

Type of rate select functionality, Not applicable

 

14

1

Length(SMF,km)

Link length supported for single mode fiber, units of km

14

15

1

Length(SMF)

Link length supported for single mode fiber, units of 100m

00

16

1

Length(50um)

Link length supported for 50um OM2 fiber, units of 10m

00

17

1

Length(62.5um)

Link length supported for 62.5um OM1 fiber, units of 10m

00

18

1

Length(cable)

Link length supported for copper or direct attach cable, units of m

00

19

1

Length(OM3)

Link length supported for 50um OM3 fiber, units of 10m

00

20~35

16

Vendor name

SFP vendor name (ASCII)

X

36

1

Reserved

Reserved

00

37

 

 

3

Vendor OUI

SFP vendor IEEE company ID

 

38

00

39

 

40~55

16

Vendor PN

Part number provided by SFP vendor (ASCII)

X

56~59

4

Vendor rev

Revisionlevel for part number provided by vendor (ASCII)

X

60

2

Wavelength

Laser wavelength (Passive/Active Cable Specification Compliance)

 

61

 

62

1

Unallocated

 

 

63

1

CC_BASE

Check code for Base ID Fields

 

64

2

Options

Indicates which optional transceiver signal sare implemented

 

65

 

66

1

BR,max

Upper bit rate margin, units of %

05

67

1

BR,min

Lower bit rate margin, units of %

5F

68~84

16

Vendor SN

Serial number provided by vendor (ASCII)

X

85~91

8

Date code

Vendor’s manufacturing date code

 

92

1

Diagnostic Monitoring Type

Indicates which type of diagnostic monitoring is implemented (ifany) in the transceiver

28

93

1

Enhanced Options

Indicates which optional enhanced features are implemented (ifany) in the transceiver

90

94

1

SFF-8472 Compliance

Indicates which revision of SFF-8472 the transceiver complies with.

X

95

1

CC_EXT

Check code for the Extended ID Fields

 

96~127

32

Vendor Specific

Vendor Specific EEPROM

0

 Digital Diagnostic Monitoring Interface (2-Wire Address A2H)

Byte Addr

Bit Size

Name

Description and Value of the Field

00-01

2

Temp High Alarm

MSB at lower address.100°C

02-03

2

Temp Low Alarm

MSB at lower address.-50°C

04-05

2

Temp High Warning

MSB at lower address.95°C

06-07

2

Temp Low Warning

MSB at lower address.-45°C

08-09

2

Voltage High Alarm

MSB at lower address.3.7V

10-11

2

Voltage Low Alarm

MSB at lower address.2.9V

12-13

2

Voltage High Warning

MSB at lower address.3.6V

14-15

2

Voltage Low Warning

MSB at lower address.3.0V

16-17

2

Bias High Alarm

MSB at lower address.70mA

18-19

2

Bias Low Alarm

MSB at lower address.8mA

20-21

2

Bias High Warning

MSB at lower address.65mA

22-23

2

Bias Low Warning

MSB at loweraddress.9mA

24-25

2

TX Power High Alarm

MSB at lower address.4dBm

26-27

2

TX Power Low Alarm

MSB at lower address.-6dBm

28-29

2

TX Power High Warning

MSB at lower address.3dBm

30-31

2

TX Power Low Warning

MSB at lower address.-5dBm

32-33

2

 

 

34-35

2

 

 

36-37

2

 

 

38-39

2

 

 

40-55