SFP CWDM Transceiver,1.25G,80km

Description
The SFP transceivers are high performance, cost effective modules supporting data rate of 1.25Gbps and 80km transmission distance with SMF.The transceiver consists of three sections: a CWDM DFB laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement and SFF-8472 digital diagnostics functions.

Product Features
● Supports up to 1.25Gbps bit rates
● Hot-pluggable SFP footprint
● CWDM DFB laser and PIN photo detector, Up to 80km for SMF transmission
● Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
● Compatible with RoHS
● Single +3.3V power supply
● Real Time Digital Diagnostic Monitoring
● Operating case temperature:
      Standard: 0 to +70°C
      Industrial: -40 to +85°C

Applications
● 1.25Gbps Optical systems
● Gigabit Ethernet
● 1.063Gbps Fiber Channel
● Other Optical links

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
	Extended		-20		+80	°C
	Industrial		-40		+85	°C
Power Supply Voltage		Vcc	3.135	3.30	3.465	V
Power Supply Current		Icc			300	mA
Data Rate			0.1	1.25		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）			Δλ			1	nm
Side-Mode Suppression Ratio			SMSR	30		–	dB
Average Output Power			Pout	0		+4.0	dBm	1
Extinction Ratio			ER	9.0			dB
Data Input Swing Differential			VIN	180		1200	mV	2
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
Receiver
Centre Wavelength			λc	1270		1610	nm
Receiver Sensitivity						-26	dBm	3
Receiver Overload				-1			dBm	3
LOS De-Assert			LOSD			-27	dBm
LOS Assert			LOSA	-38			dBm
LOS Hysteresis				0.5		4	dB
Data Output Swing Differential			Vout	600	800	1000	mV	4
LOS			High	2.0		Vcc	V
			Low			0.8	V

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 @1250Mbps, BER ≤1×10^-12.
4. Internally AC-coupled.

Ordering information

Part Number	Product Description
FTCS-Cxx12-80D	CWDM, 1.25Gbps, LC, 80km, 0°C~+70°C, with DDM
FTCS-Cxx12-80DI	CWDM, 1.25Gbps, LC, 80km, -40°C~+85°C, with DDM

FTCS-Cxx12-80Dxx    λC Wavelength Guide
Code	λC	Unit	Code	λC	Unit	Code	λC	Unit	Code	λC	Unit
27	1270	nm	37	1370	nm	47	1470	nm	57	1570	nm
29	1290	nm	39	1390	nm	49	1490	nm	59	1590	nm
31	1310	nm	41	1410	nm	51	1510	nm	61	1610	nm
33	1330	nm	43	1430	nm	53	1530	nm
35	1350	nm	45	1450	nm	55	1550	nm

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Important Notice

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