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155Mbps CWDM SFP Optical Transceiver SPT-PCXX03-120D

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155Mbps CWDM SFP Optical Transceiver SPT-PCXX03-120D

SPT-PCXX03-120D

155Mbps CWDM SFP Optical Transceiver, 120km Reach

Features

Data-rate of 155Mbps operation
9 CWDM DFB wavelengths laser and PIN photodetector for 120km 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 120km 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

SPT-PCXX03-120D

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

SPT-PCXX03-120D:(CWDM and PIN, 120km 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	0		5	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
TX Disable	Enable			0		0.8	V
TX Fault	Fault			2.0		Vcc	V
TX Fault	Normal			0		0.8	V

Receiver
Centre Wavelength	λc	1260	1620	nm
Receiver Sensitivity			-34	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
LOS	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

EEPROM Information

The SFP MSA defines a 256-byte memory map in EEPROM describing the transceiver’s capabilities, standard interfaces, manufacturer, and other information, which is accessible over a 2 wire serial interface at the 8-bit address 1010000X (A0h). The memory contents refer to Table 6.

Table 6 - EEPROM Serial ID Memory Contents (A0h)

Addr.	Field Size (Bytes)	Name of Field	Hex	Description
0	1	Identifier	03	SFP
1	1	Ext. Identifier	04	MOD4
2	1	Connector	07	LC
3—10	8	Transceiver	00 08 04 00 00 00 00 00	OC-3,Single mode long reach
11	1	Encoding	03	NRZ
12	1	BR, nominal	02	155Mbps
13	1	Reserved	00
14	1	Length (9um)-km	78	120km
15	1	Length (9um)	FF	120km
16	1	Length (50um)	00
17	1	Length (62.5um)	00
18	1	Length (copper)	00
19	1	Reserved	00
20—35	16	Vendor name	47 69 67 61 6C 69 67 68 74 20 20 20 20 20 20 20	"SOPTO"(ASCⅡ)
36	1	Reserved	00
37—39	3	Vendor OUI	00 00 00
40—55	16	Vendor PN	47 50 43 2D 34 35 30 33 2D 31 32 43 44 20 20 20	“SPT-PCXX03-120D ”(ASCⅡ)
56—59	4	Vendor rev	xx xx xx xx	xx.xx revision （ASCⅡ）
60-61	2	Wavelength	05 AA	1450nm
62	1	Reserved	00
63	1	CC BASE	xx	Check sum of bytes 0 - 62
64—65	2	Options	00 1A	LOS,TX_FAULT and TX_DISABLE
66	1	BR, max	00
67	1	BR, min	00

68—83	16	Vendor SN	xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx	ASCⅡ
84—91	8	Vendor date code	xx xx xx xx xx xx 20 20	Year(2 bytes),Month(2 bytes),Day(2 bytes)
92	1	Diagnostic type	xx	Diagnostics
93	1	Enhanced option	80	Diagnostics(Optional Alarm/warning flags)
94	1	SFF-8472	01	Diagnostics(SFF-8472 Rev 9.3)
95	1	CC EXT	xx	Check sum of bytes 64 - 94
96—255	160

Diagnostics

Table 7 – 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

Digital Diagnostic Memory Map

The transceivers provide serial ID memory contents and diagnostic information about the present operating conditions by the 2-wire serial interface (SCL, SDA).

The diagnostic information with internal calibration or external calibration all are implemented, including received power monitoring, transmitted power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring.

The digital diagnostic memory map specific data field defines as following.

Pin Definitions

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 and Vcc+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.

Recommended Interface Circuit

Mechanical Dimensions

Ordering information

Part Number

Product Description

SPT-PCXX03-120D

CWDM 1450nm~1610nm, 155Mbps, 120km, 0ºC ~ +70ºC, With Digital

Diagnostic Monitoring

E-mail: sales@sopto.com
Web : http://www.sopto.com

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155Mbps CWDM SFP Optical Transceiver SPT-PCXX03-120D

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