SFP Module 155Mbps CWDM 80km SFP Optical Transceiver

155Mbps CWDM SFP Optical Transceiver, 80km Reach

Features
Data-rate of 155Mbps operation
9 CWDM DFB wavelengths laser and PIN photodetector for 80km transmission
Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
Digital Diagnostic Monitoring:Internal Calibration or External Calibration
Compatible with RoHS
+3.3V single power supply
Operating case temperature:Standard : 0 to +70°C
Applications
Gigabit Ethernet
Fiber Channel
Switch to Switch interface
Switched backplane applications
Router/Server interface
Other optical transmission systems
 

 Description
The SFP transceivers are high performance, cost effective modules supporting data-rate of 155Mbps and 80km
transmission distance with SMF.
 
The transceiver consists of three sections: an uncooled 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 (MSA) and SFF-8472. For further information,
please refer to SFP MSA.

Absolute Maximum Ratings
Table 1 - 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	95	%

Recommended Operating Conditions
Table 2 - 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			300	mA
Data Rate				155		Mbps

GPC-xx03-08CD
See table3 below for "xx" values
Table3 -λC Wavelength Guide

λC Wavelength Guide
Code	λC	Unit	Code	λC	Unit
45	1450	nm	55	1550	nm
47	1470	nm	57	1570	nm
49	1490	nm	59	1590	nm
51	1510	nm	61	1610	nm
53	1530	nm

Optical and Electrical Characteristics
GPC-xx03-08CD:  (CWDM and PIN, 80km Reach)
Table 4 - 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)			λ			1	nm
Side Mode Suppression Ratio			SMSR	30			dB
Average Output Power			Pout	-5		0	dBm	1
Extinction Ratio			ER	10			dB
Jitter Generation (RMS)						0.01	UI
Jitter Generation (PK-PK)						0.1	UI
Output Optical Eye			Compliant Telcordia GR-253-CORE and ITU-T G.957
Optical Rise/Fall Time (20%~80%)			tr/tf			0.26	ns
Data Input Swing Differential			VIN	300		1860	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	1260		1620	nm
Receiver Sensitivity						-35	dBm	3
Receiver Overload				-10			dBm	3
LOS De-Assert			LOSD			-38	dBm
LOS Assert			LOSA	-45			dBm
LOS Hysteresis				1		4	dB
Data Output Swing Differential			Vout	370		1800	mV	4
LOS			High	2.0		Vcc	V
			Low	0		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 223-1 test pattern @155Mbps, BER ≤1×10-12.
4. Internally AC-coupled.

Timing and Electrical
Table 5 - 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
LOS Assert Time	t_loss_on			100	µs
LOS De-assert Time	t_loss_off			100	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
Table 6 - Diagnostics Specification

Parameter	Range	Unit	Accuracy	Calibration
Temperature	0 to +70	°C	±3°C	Internal / External
Voltage	3.0 to 3.6	V	±3%	Internal / External
Bias Current	0 to 100	mA	±10%	Internal / External
TX Power	0 to +5	dBm	±3dB	Internal / External
RX Power	-33 to -9	dBm	±3dB	Internal / External

Pin Descriptions

Pin	Signal Name	Description	Plug Seq.	Notes
1	VEET	Transmitter Ground	1
2	TX FAULT	Transmitter Fault Indication	3	Note 1
3	TX DISABLE	Transmitter Disable	3	Note 2
4	MOD_DEF(2)	SDA Serial Data Signal	3	Note 3
5	MOD_DEF(1)	SCL Serial Clock Signal	3	Note 3
6	MOD_DEF(0)	TTL Low	3	Note 3
7	Rate Select	Not Connected	3
8	LOS	Loss of Signal	3	Note 4
9	VEER	Receiver ground	1
10	VEER	Receiver ground	1
11	VEER	Receiver ground	1
12	RD-	Inv. Received Data Out	3	Note 5
13	RD+	Received Data Out	3	Note 5
14	VEER	Receiver ground	1
15	VCCR	Receiver Power Supply	2
16	VCCT	Transmitter Power Supply	2
17	VEET	Transmitter Ground	1
18	TD+	Transmit Data In	3	Note 6
19	TD-	Inv. Transmit Data In	3	Note 6
20	VEET	Transmitter Ground	1

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 andVcc+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 a 4.7k~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) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7k~10kΩ resistor on
the host board. The pull-up
voltage shall be VccT or VccR.
Mod-Def 0 is grounded by the module to indicate that the module is present
Mod-Def 1 is the clock line of two wire serial interface for serial ID
Mod-Def 2 is the data line of two wire serial interface for serial ID
4) LOS is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor. Pull up voltage
between 2.0V and Vcc+0.3V.
Logic 1 indicates loss of signal; Logic 0 indicates normal operation. In the low state, the output will be
pulled to less than 0.8V.
5) RD-/+: These are the differential receiver outputs. They are internally AC-coupled 100 differential lines
which should be terminated with
100Ω (differential) at the user SERDES.
6) TD-/+: These are the differential transmitter inputs. They are internally AC-coupled, differential lines
with 100Ω differential termination inside the module.

Ordering information

Part Number	Product Description
GPC-xx03-08CD	CWDM 1450nm~1610nm, 155Mbps, 80km,   0ºC ~ +70ºC,  With Digital Diagnostic Monitoring