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You are here: Home Optical Transceiver PON GPON ONU GPON ONU Class C+ SFP Transceiver

GPON ONU Class C+ SFP Transceiver

GPON ONU Class C+ SFP Transceiver

Features

  1.      Single fiber Bi-Directional transceiver with single mode SC receptacle
  2.      1310nm burst-mode 1.25Gbps transmitter with DFB laser
  3.      1490nm continuous-mode 2.5Gbps receiver with APD-TIA
  4.      Meets ITU-T G.984.2 Class C+
  5.      Digital diagnostic interface compliant with SFF-8472 Rev 9.4 ,
  6.      Digital Diagnostic Monitoring (DDM) with external calibration
  7.      3.3V Single power supply
  8.      LVPECL interface logic level for data input
  9.     CML interface logic level for data output
  10.     Differential line input/output impedance 100 ohm
  11.     LVTTL for burst signal input and signal detect output
  12.    Complies with RoHS directive (2002/95/EC)
  13.    Operating case temperature:
  •               Standard : 0 to +70°C
  •               Industrial : -40 to +85°C

Applications
Gigabit Passive Optical Network (GPON) ONU
Description
GNUP-3412S-C2CDA transceiver is a high performance module for single fiber communications using a 1310nm burst-mode transmitter and a 1490nm continuous-mode receiver. It is used in the optical network terminal (ONT) for GPON ONT Class C+ applications.
The Transmitter is designed for single mode fiber and operates at a nominal wavelength of 1310nm. The transmitter module uses a DFB laser diode with full IEC825 and CDRH class 1 eye safety. It contains APC functions, a temperature compensation circuit to ensure compliance with G.984.2 requirement at operating temperature, LVPECL data inputs and DC coupling circuit.
The receiver section uses a hermetic packaged APD TIA (APD with trans-impedance amplifier) and a limiting amplifier. The APD converts optical power into electrical current and the current is transformed to voltage by the trans-impedance amplifier. The differential DATA and /DATA CML data signals are produced by the limiting amplifier. The APD TIA is AC coupled to the limiting amplifier through a low pass filter. As the optical input power decreases, the Signal Detect will switch from high
to low (de-assert point). As the optical input power is increases, Signal Detect will switch back from low
to high (assert point). The assert level is at least 0.5 dB higher than the de-assert level (Signal Detect
Hysteresis).

Optical and Electrical Characteristics

Parameter

Symbol

Min

Typical

Max

Unit

Notes

Transmitter

Tx Data Rate

RT

-

1.25

-

Gb/S

-

Centre Wavelength

λc

1260

1310

1360

nm

-

Spectral Width

∆λ

-

-

1

nm

-

Side Mode Suppression Ratio

SMSR

30

-

-

dB

-

Average Output Power

Pout

2

-

7

dBm

1

Extinction Ratio

ER

10

-

-

dB

-

Burst Enable Delay

Ton

-

-

12.86

ns

 

Burst Disable Delay

Toff

-

-

12.86

ns

 

Average Launch Power-OFF Transmitter

Poff

 

 

-41

dBm

 

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

tr/tf

 

 

260

ps

 

Data Input Swing Differential

VIN

200

 

1600

mV

2

Input Differential Impedance

ZIN

90

100

110

Ω

 

Burst

Disable

 

2.0

 

Vcc

V

 

Enable

 

0

 

0.8

V

 

TX Fault

Fault

 

2.0

 

Vcc

V

 

Normal

 

0

 

0.8

V

 

Receiver

Rx Data Rate

RR

-

2.5

-

Gb/s

3

Centre Wavelength

λc

1480

 

1500

nm

 

Receiver Sensitivity(BOL)

Sen

 

 

-30

dBm

3

Receiver Overload

Sat

-8

 

 

dBm

3

Receiver Reflectance

 

 

 

-20

dB

 

Signal Detect De-Assert

SDD

-44

 

 

dBm

 

Signal Detect Assert

SDA

 

 

-31

dBm

 

Signal Detect Hysteresis

SDH

0.5

 

6

dB

 

Output Differential Impedance

ZIN

90

100

110

Ω

 

Data Output Swing Differential

Vout

400

 

1000

mV

 

SD Output Voltage

High

 

2.0

 

Vcc

V

 

Low

 

0

 

0.8

V

 

Notes:

1. The optical power is launched into SMF.

2. PECL input, internally DC-coupled and terminated.

3. Measured with a PRBS 27-1 test pattern @1250Mbps, BER ≤1×10-10.

Ordering information

Part Number

Product Description

FTCS-ONG-20C

Tx1310nm, Rx1490nm, 1.25Gbps/2.5Gbps, Class C+, 0ºC ~ +70ºC with Digital Diagnostic Monitoring

FTCS-ONG-20CI

Tx1310nm, Rx1490nm, 1.25Gbps/2.5Gbps, Class C+, -40 to +85°Cwith Digital Diagnostic Monitoring

 

Contact us

  • Add: Building 1,High-tech science technology industrial
    park,Chengdu,China
  • Tel: 0086-28-85255257

About us

Robot

F-tone is specializing in developing and manufacturing optical transceivers and components which are wildly applied in Datacon, Telecom and CATV, and provides customers with top quality and cost effective products. SFP,SFP光模块...

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