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3Gbps Video SFP Optical Transmitter for 40km

1550nm 1G fiber optic transceiver

SPT-PC2TXXV3-40D

3Gbps Video SFP Optical Transmitter, 40km Reach
  Features
HD-SDI SFP Transmitter available
SD-SDI SFP Transmitter available
3G-SDI SFP Transmitter available
SMPTE 297-2006 Compatible.
Metal enclosure for Lower EMI
18 CWDM 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 a dual channel optical transmitter module, one channel consists of two sections: a DFB laser transmitter and MCU control unit. All modules satisfy class I laser safety requirements.
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

 

 

500

mA

Data Rate

 

 

3

 

Gbps

Optical and Electrical Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Centre Wavelength

λc

λc-6.5

λc

λc+6.5

nm

 

Spectral Width(-20dB)

σ

 

 

1

nm

 

Side Mode Suppression Ratio

SMSR

30

 

 

dB

 

Average Output Power

Pout

-2

0

+3

dBm

1

Extinction Ratio

ER

5

8

 

dB

 

Rise/FallTime (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. Rise and fall times, 20% to 80%, are measured following a fourth-order Bessel-Thompson filter with a bandwidth of 0.75 x clock frequency corresponding to the serial data rate.
2. PECL input, internally AC-coupled and terminated.
3. 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

 

 

400

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

0to+70

°C

±3°C

Internal/External

Voltage

3.0to3.6

V

±3%

Internal/External

Bias Current

0to100

mA

±10%

Internal/External

TX Power

-5to0

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
Pin Descriptions
  Pin Descriptions

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

3

 

4

VEE_TX1

Transmitter1 Ground

3

 

5

I2CCLK

SCL Serial Clock Signal

3

Note3

6

I2CDATA

SDA Serial Data Signal

3

Note3

7

VEE_TX2

Transmitter2 Ground

3

 

8

TD2+

Transmit2 Data In

3

Note4

9

TD2-

Inv. Transmit2 Data In

1

Note4

10

TX2_DIS

Transmitter2 Disable

1

Note2

11

VEE_TX2

Transmitter2 Ground

1

 

12

TX2_FAULT

Transmitter2 Fault Indication

3

Note1

13

NC

Not Connected

3

 

14

VEE_TX2

Transmitter2 Ground

1

 

15

VCC_TX2

Transmitter Power2 Supply

2

 

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

1

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 a4.7k~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 interface 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.

  CWDM Wavelength (0~70°C)

Band

Suffix

Wavelength(nm)

O-band Original

A

1270

B

1290

C

1310

D

1330

E

1350

E-band Extended

F

1370

G

1390

H

1410

I

1430

J

1450

S-band Short Wavelength

K

1470

L

1490

M

1510

N

1530

C-band Conventional

O

1550

L-band Long Wavelength

P

1570

Q

1590

R

1610

  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 connect or 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 attachcable, 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

37~39

3

Vendor OUI

SFP vendor IEEE company ID

 

40~55

16

Vendor PN

Part number providedby SFP vendor (ASCII)

X

56~59

4

Vendor rev

Revision level for part number provided by vendor(ASCII)

X

60

2

Wavelength

Laser wavelength (Passive/Active Cable Specification Compliance)

 

61

 

62

1

Unal located

 

 

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

68~83

16

Vendor SN

Serial number provided by vendor(ASCII)

X

84~91

8

Date code

Vendor’s manufacturing date code

 

92

1

Diagnostic Monitoring Type

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

28

93

1

Enhanced Options

Indicates which optional enhanced features are implemented(if any) 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 lower address. 9mA

24-25

2

TX1 Power High Alarm

MSB at lower address. 4dBm

26-27

2

TX1 Power Low Alarm

MSB at lower address. -6dBm

28-29

2

TX1 Power High Warning

MSB at lower address. 3dBm

30-31

2

TX1 Power Low Warning

MSB at lower address. -5dBm

32-33

2

TX2 Power High Alarm

MSB at lower address. 4dBm

34-35

2

TX2 Power Low Alarm

MSB at lower address. -6dBm

36-37

2

TX2 Power High Warning

MSB at lower address. 3dBm

38-39

2

TX2 Power Low Warning

MSB at lower address. -5dBm

40-55

16

Reserved

Reserved

56-59

4

 

 

60-63

4

 

 

64-67

4

 

 

68-71

4

 

 

72-75

4

 

 

76-77

2

TX_I(Slope)

Set to 1 for “internally calibrated” Devices. Value is 0100.

78-79

2

TX_I(Offset)

Set to zero for “internally calibrated” Devices. Value is 0000.

80-81

2

TX_PWR(Slope)

Set to 1 for “internally calibrated”  Devices. Value is 0100.

82-83

2

TX_PWR(Offset)

Set to zero for “internally calibrated” Devices. Value is 0000.

84-85

2

T(Slope)

Set to 1 for “internally calibrated” Devices. Value is 0100.

86-87

2

T(Offset)

Set to zero for “internally calibrated” Devices. Valueis0000.

88-89

2

V(Slope)

Set to 1 for “internally calibrated” Devices. Value is 0100.

90-91

2

V(Offset)

Set to zero for “internally calibrated” Devices. Value is 0000.

92-94

3

Reserved

Reserved

95

1

Check sum

Check sum of bytes 0–94.

96-97

2

Temperature(MSB,LSB)

Internally measured module temperature

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