China 1.25g Bi-Directional Wdm SFP Module 20km

Industrial Grade 1.25Gbps Bi-directional SFP Transceiver

Feature

Compliant with IEEE802.3z Gigabit Ethernet Standard
Compliant with Fiber Channel 100-SM-LC-L standard
Industry standard small form pluggable (SFP) package
Simplex SC connector
Differential LVPECL inputs and outputs
Single power supply 3.3V
TTL signal detect indicator
Hot Pluggable
Class 1 laser product complies with EN 60825-1
RoHS Compliant
CPRI ready
Transmission distance up to 20km by single fiber
Compliant with cisco/HP/Huawei etc brand switch or router

Work temperature -40-+85ºC

Applications
Gigabit Ethernet Application
Point-to-Point FTTX Application


The PHY-3524-1LX Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA)1. They are simultaneously compatible with Gigabit Ethernet as specified in IEEE Std 802.32 and
Fibre Channel FC- PI-2 Rev. 7.03. They are RoHS compliant and lead-free per Directive
2002/95/EC4

. Pin Descriptions

PinSymbolName/DescriptionRef.1VEETTransmitter Ground (Common with Receiver Ground)12TFAULTTransmitter Fault. Not supported. 3TDISTransmitter Disable. Laser output disabled on high or open.24MOD_DEF(2)Module Definition 2. Data line for Serial ID.35MOD_DEF(1)Module Definition 1. Clock line for Serial ID.36MOD_DEF(0)Module Definition 0. Grounded within the module.37Rate SelectNo connection required 8LOSLoss of Signal indication. Logic 0 indicates normal operation.49VEERReceiver Ground (Common with Transmitter Ground)110VEERReceiver Ground (Common with Transmitter Ground)111VEERReceiver Ground (Common with Transmitter Ground)112RD-Receiver Inverted DATA out. AC Coupled 13RD+Receiver Non-inverted DATA out. AC Coupled 14VEERReceiver Ground (Common with Transmitter Ground)115VCCRReceiver Power Supply 16VCCTTransmitter Power Supply 17VEETTransmitter Ground (Common with Receiver Ground)118TD+Transmitter Non-Inverted DATA in. AC Coupled. 19TD-Transmitter Inverted DATA in. AC Coupled. 20VEETTransmitter Ground (Common with Receiver Ground)1

Notes:
1. Circuit ground is internally isolated from chassis ground.
2. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
3. Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and
3.6V.MOD_DEF(0) pulls line low to indicate module is plugged in.
4. LOS is open collector output. Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.

.Absolute Maximum Ratings

ParameterMin.Max.UnitsStorage Temperature-45+100ºCSupply Voltage-0.56.0VInput Voltage-0.5VccVOutput Current 50mAOperating Current 400mACase Operating Temperature-40+85ºCSupply Current 250mA

.Transmitter Electro-optical Characteristics
Vcc = 3.1 V to 3.5 V, TC =-40ºC to +85 ºC

ParameterMin.Typ.MaxUnitsNote
Output Optical Power
9/125 μm fiber

-9----3dBm1-4---+3dBm2-3---+3dBm3Extinction Ratio9------dB Center Wavelength126013101360nm
Spectral Width (RMS)

---
---2.5nm11nm2,3Rise/Fall Time, (20−80%)------260ps Relative Intensity Noise-------120dB/Hz Total Jitter------227ps Output EyeMax. TX-DISABLE Asserted-------45dBm Differential Input Voltage0.4---2.0V

Note
1.PHY-3524-1L2 2.PHY-3524-1L4 3.PHY-3524-1L6

.Receiver Electro-optical Characteristics
Vcc = 3.1 V to 3.5 V, TC =-40ºC to +85 ºC

ParameterMin.Typ.Max.UnitsNoteOptical Input Power-maximum0------dBmBER < 10-12Optical Input Power-minimum
(Sensitivity)

---
---
-24
dBm
BER < 10-12Operating Center Wavelengthλ148015501580nm Optical Return Loss14------dB1480~1580nmOptical isolation-------40dB1480~1580nmSignal Detect-Asserted-------24dBm Signal Detect-Deasserted-35--- dBm Differential Output Voltage0.5---1.2V Data Output Rise, Fall Time
(20−80%)

---
---
0.35
ns Receiver Loss of Signal Output
Voltage-Low
0
---
0.5
V Receiver Loss of Signal Output
Voltage-High

2.4
---
Vcc
V

.Block Diagram of Transceiver


Note
Transmitter and Receiver Optical Sub-assembly Section
A 1310 nm InGaAsP laser and an InGaAs PIN photodiode integrate with an WDM filter to form a bi-directional single fiber optical subassembly (OSA). The laser of OSA is driven by a LD driver IC which converts differential input LVPECL logic signals into an analog laser driving current. And, The photodiode of OSA is connected to a circuit providing post-amplification quantization, and optical signal detection.
TX_DISABLE
The TX_DISABLE signal is high (TTL logic "1") to turn off the laser output.
Receive Loss (RX_LOS)
The RX_LOS is high (logic "1") when there is no incoming light from the companion transceiver. This signal is normally used by the system for the diagnostic purpose. The signal is operated in TTL level.

.Dimensions

. PCB Layout and Bezel Recommendations

.Recommended Interface Circuit
.Ordering Information

Part NumberTx/RxInput/OutputSignal DetectTemperatureLD TypeDistancePHY-3524-1L21310/1550AC/ACTTL-40ºC~+85ºC1310FP20kmPHY-3524-1L41310/1550AC/ACTTL-40ºC~+85ºC1310DFB40kmPHY-3524-1L61310/1550AC/ACTTL-40ºC~+85ºC1310DFB60km

. References
1. Small Form Factor Pluggable (SFP) Transceiver Multi-source Agreement (MSA).
September 14, 2000.
2. IEEE Std 802.3, 2002 Edition, Clause 38, PMD Type 1000base-SX. IEEE Standards
Department 2002.
3. "Fibre Channel Draft Physical Interface Specification (FC-PI-2 Rev. 7.0)". American
National Standard For Information Systems.
4. Directive 2002/95/EC of the European Council Parliament and of the Council, "on the restriction of the use of certain hazardous substances in electrical and electronic equipment." January 27, 2003.
Warnings:
Handling Precautions: This device is susceptible to damage as a result of electrostatic discharge (ESD). A static free environment is highly recommended. Follow guidelines according to proper ESD procedures.
Laser Safety: Radiation emitted by laser devices can be dangerous to human eyes. Avoid eye exposure to direct or indirect radiation.