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SPET-X53T1-SX3DA Asymmetric 10G EPON OLT XFP Transceiver

1550nm 1G fiber optic transceiver

SPET-X53T1-SX3DA

Asymmetric 10G EPON OLT XFP Transceiver

Features
Single Fiber Transceiver with single mode SC receptacle
1577nm continuous-mode 10.3125G/s transmitter with EML laser
1310nm burst-mode 1.25G/s receiver with APD-TIA
Single 3.3V power supply
LVPECL compatible data input /output
Burst mode received signal strength indication (RSSI) output
Complies with IEEE P802.3™D3.2 10/1GBASE–PRX30
Digital diagnostic interface compliant with SFF-8472 Rev 9.4
Complies with XFP MSA
Complies with RoHS directive
Operating case temperature: Standard: 0 to +70°C

Applications
Asymmetric 10G/1G Ethernet Passive Optical Network OLT

Description
The SPET-X53T1-SX3DA transceiver is the high performance module for single fiber by using 1577nm continuous-mode transmitter and 1310nm burst-mode receiver. It is optical line terminal (OLT) for IEEE P802.3™D3.2 10/1GBASE–PRX30. The optical transceiver is compliant with XFP Multi- Source Agreement (MSA).
The transmitter section uses a 1577nm EML LD with automatic power control (APC) function and temperature compensation circuitry to ensure stable extinction ratio overall operating temperature range. and is ClassⅠlaser compliant IEC825 and CDRH standards.
The receiver has a hermetically packaged APD-TIA (trans-impedance amplifier) pre-amplifier and a limiting amplifier with LVPECL compatible differential outputs. The receiver also supports burst mode RSSI output which is enabled by a trigger. Burst mode RSSI function can satisfy system the demand of monitoring the power from any ONU.

Absolute Maximum Ratings

Parameter

Symbol

Min.

Max.

Units

Notes

Storage Temperature

Tst

-40

+85

°C

-

Operating Case Temperature

Tc

0

70

°C

-

Operating Humidity

RH

5

90

%

Non-condensing

Input Voltage

-

GND

Vcc

V

-

Power Supply Voltage

Vcc3

0

3.6

V

-

Power Supply Voltage

Vcc5

0

6

V

-

Recommended Operating Conditions

Parameter

Symbol

Min

Typical

Max

Unit

Operating Case Temperature

Standard

Tc

0

 

+70

°C

Power Supply Voltage

Vcc3

3.13

3.3

3.47

V

Power Supply Voltage

Vcc5

4.75

5

5.25

V

Power Supply Current

Icc3

 

 

1000

mA

Power Supply Current

Icc5

 

 

500

mA

Optical and Electrical Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Data Rate

 

 

10.3125

 

Gb/S

 

Centre Wavelength

λc

1575

1577

1580

nm

 

Spectral Width

∆λ

 

 

1

nm

 

Side Mode Suppression Ratio

SMSR

30

 

 

dB

 

Average Output Power (BOL)

Pout

2

 

5

dBm

1

Extinction Ratio

ER

6

 

 

dB

 

Average Launch Power-OFF Transmitter

Poff

 

 

-39

dBm

 

Optical Eye Diagram

Compliant with IEEEP802.3™D3.2 Figure75–8

Optical Rise/ Fall Time (20%~80%)

tr/tf

 

 

26

ps

 

Data Input Swing Differential

VIN

200

 

1000

mV

2

Input Differential Impedance

ZIN

90

100

110

Ω

 

TX Disable

Disable

 

2.0

 

Vcc

V

 

Enable

 

0

 

0.8

V

 

Receiver

Data Rate

 

 

1.25

 

Gb/S

 

Centre Wavelength

λc

1260

1310

1360

nm

 

Receiver Sensitivity

Sen

 

 

-29.87

dBm

3

Stressed receive sensitivity

Sen

 

 

-28.38

dBm

4

Receiver Overload

Sat

-9

 

 

dBm

3

Damage threshold

-

-5

 

 

dBm

 

Receiver Burst Dynamic Range

 

22

 

 

dB

 

Receiver_settling

-

 

 

400

ns

 

Data Output Voltage-High

VOH

VccR-1.05

 

VccR–0.85

V

5

Data Output Voltage-Low

VOL

VccR-1.84

 

VccR–1.60

V

5

LOS De-assert Level

LOS_D

 

 

-31

dBm

 

LOS Assert Level

LOS_A

-45

 

 

dBm

 

LOS Detect Hysteresis

-

1

 

 

dBm

 

LOS_Det High

-

2.0

 

VCC

V

 

LOS_DetLow

-

0

 

0.8

V

 

LOS De-assert Time

LOS_DT

 

 

500

ns

 

LOS Assert Time

LOS_AT

 

 

500

ns

 

Receiver Power DDM(RSSI) Error

RXDDM

 

 

+/-3

dBm

 

Notes:
1. The optical power is launched into SMF
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 27-1 test pattern @1.25Mbps, BER ≤1×10-10.
4. Vertical eye-closure penalty=1.4dB, Stressed eye jitter=0.28UI pk to pk
5. Internally DC-coupled.

Diagnostics

Parameter

Range

Unit

Accuracy

Calibration

Temperature

 

0 to +70

°C

±3°C

Internal/External

-40 to +85

Vcc3

3.0 to 3.6

V

±3%

Internal/External

Vcc3

4.75 to 5.25

V

±3%

Internal/External

Bias Current

0 to 150

mA

±10%

Internal/External

TX POwer

2 to 5

dBm

±3dB

Internal/External

RX Power

-30 to-9

dBm

±3dB

Internal/External

Timing Characteristics for Digital RSSI

Parameter

Symbol

Min.

TYP

MAX

UNITS

Triggerdelay

Td

300

 

 

ns

Sampletime

Ts

600

 

 

ns

Internal I2C Delay

TI2C

 

 

500

us

Digital RSSI

 

Figure1

Figure 1 Digital RSSI Timing
Figure 1 Digital RSSI Timing

 

Digital Diagnostic Memory Map
The SPET-X53T1-SX3DA transceivers are compliant with the current XFP Multi-Source Agreement (MSA) Specification Rev 4.5. As defined by the XFP MSA, XFP transceivers provide digital diagnostic functions via a 2-wire serial interface, which allows real-time access to the following operating parameters:
Transceiver temperature
Laser bias current
Transmitted optical power
Received optical power
Transceiver supply voltage
It also provides a sophisticated system of alarm and warning flags, which may be used to alert end-users when particular operating parameters are outside of a factory-set normal range.

Digital Diagnostic Memory Map

The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller inside the transceiver, which is accessed through the 2-wire serial interface. When the serial protocol is activated, the serial clock signal (SCL pin) is generated by the host. The positive edge clocks data into the XFP transceiver into those segments of its memory map that are not write-protected. The negative edge clocks data from the XFP transceiver. The serial data signal (SDA pin) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially. The 2-wire serial interface provides sequential or random access to the 8 bit parameters, addressed from 000h to the maximum address of the memory.

Pin Definitions
 Pin Diagram

 Pin Diagram

 Pin Descriptions

Pin

Signal Name

Description

Notes

1

GND

Module Ground

Note1

2

VEE5

Optional–5.2 Power Supply–Not required

Note3

3

MOD-DESEL

Module De-select; When held low allows the module to , respond to 2-wire serial interface commands

 

4

INTERRUPT

Interrupt (bar); Indicates presence of an important condition which can be read over the serial 2-wire interface

Note2

5

TX_DIS

Transmitter Disable; Transmitter laser source turned off

 

6

VCC5

+5 Power Supply

Note3

7

GND

Module Ground

Note1

8

VCC3

+3.3V Power Supply

 

9

VCC3

+3.3V Power Supply

 

10

SCL

Serial 2wire interface clock

Note2

11

SDA

Serial 2wire interface data line

Note2

12

MOD_ABS

Module Absent; Indicates module is not present. Grounded in the module.

Note2

13

MOD_NR

Module Not Ready;

Note2

14

RX_LOS

Receiver Loss of Signa lindicator

Note2

15

GND

Module Ground

Note1

16

GND

Module Ground

Note1

17

RD-

Receiver inverted data output

 

18

RD+

Receiver non-inverted data output

 

19

GND

Module Ground

Note1

20

VCC2

+1.8V Power Supply–No trequired

Note3

21

RSSI_TRIG

RSSItriggersignalinputfromthehost

 

22

VCC2

+1.8V Power Supply–Not required

Note3

23

GND

Module Ground

Note1

24

REFCLK+

Reference Clock non-inverted input, AC coupled on the host board–Not required

Note3

25

REFCLK-

Reference Clock inverted input, AC coupled on the host board–Not required

Note3

26

GND

Module Ground

Note1

27

GND

Module Ground

Note1

28

TD-

Transmitter inverted data input

 

29

TD+

Transmitter non-inverted data input

 

30

GND

Module Ground

Note1

Notes:
Plug Seq.: Pin engagement sequence during hot plugging.
1) .Module ground pins GND are isolated from the module case and chassis ground within the module.
2). shall be pulled up with 4.7K-10Kohms to a voltage between 3.15V and 3.45V on the host board.
3). Not connected internally.


Recommended Interface Circuit
TBD
Mechanical Dimensions
TBD
Ordering information

Part Number Product Description
SPET-X53T1-SX3DA Tx 1577nm, Rx 1310nm, 10.3125Gbps/1.25Gbps, 10G/1GBASE-PRX30, 0º C~+70º C, DDM

 

E-mail:sales@sopto.com

Web:http://www.sopto.com

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