QSFP28 SFP Transceiver Module 100G Fiber Optic Sfp Module For Backbone Network Solution

 

Product Features

● Supports up to 112Gbps bit rates

● Duplex LC connector

● Hot pluggable

● Operating electrical serial data rate up to 27.952493Gbps

● 4 parallel electrical serial interface

● Applicable for 10km SMF connection

● Low power consumption, < 9W

● Digital Diagnostic Monitor Interfacel ●MDIO Communication Interface

● Compliant with 100GBASE-LR4 and OTU4

● Operating case temperature:

Commerical:-20 to 75 °C

 

 

Applications

● Local Area Network(LAN)

● Wide Area Network(WAN)

● Switch to router interface

● ITU-T OTU4 OTL4.4

Standards

● Compliant with IEEE 802.3ba

● Compliant with CFP2 MSA hardware specifications

● Compliant with CFP2 MSA management specifications

● Compliant with ITU-T G709/Y.1331

● Compliant with RoHS

 

Functional Description

The 100G CFP2 LR4 optical transceiver integrates the transmit and receive path onto one module. On the transmit side, four lanes of serial data streams are recovered, retimed,and passed on to four laser drivers, which control four electric-absorption modulated lasers (EMLs) with 1296, 1300, 1305, and 1309 nm center wavelengths. The optical signals are then multiplexed into a single-mode fiber through an industry-standard LC connector.On the receive side, 4 lanes of optical data streams are optically demultiplexed by an integrated optical demultiplexer. Each data steam is recovered by a PIN photodetector and transimpedance amplifier, retimed, and passed on to an output driver. This module features a hot-pluggable electrical interface, low power consumption, and MDIO management interface.

 

 

Functional Diagram

Absolute Maximum Ratings

Parameter	Symbol	Min.	Max.	Unit	Note
Supply Voltage	Vcc	-0.5	3.6	V
Storage Temperature	TS	-40	85	°C
Relative Humidity	RH	0	85	%

 

Note: Stress in excess of the maximum absolute ratings can cause permanent damage to the transceiver.

Recommended Operating Conditions

Parameter	Symbol	Min.	Typ	Max.	Unit	Note
Data Rate	DR		103.2	11.3	Gb/s
Supply Voltage	Vcc	3.14	3.3	3.46	V
Operating Case Temp.	Tc	0		70	°C

 

 

 

Electrical Characteristics

(Tested under recommended operating conditions,unless otherwise noted)

Parameter					Symbol	Unit	Min	Typ	Max	Notes
Voltage Supply Electrical Characteristics
Supply Current	Tx Section				Icc	A			3.75	1
	Rx Section
Power Supply Noise					Vrip				2% DC	1MHz
									3% 1	10MHz
Total Dissipation Power			Class1		Pw	W			3
			Class2						6
			Class3						9
			Class4						12
Low Power Mode Dissipation					Plow	W			2
Inrush Current		Class1		and	I-inrush	mA/usec			100
Turn-off Current		Class2			I-turnoff	mA/usec	-100
Inrush Current		Class3		and	I-inrush	mA/usec			200
Turn-off Current		Class4			I-turnoff	mA/usec	-200
Different Signal Electrical Characteristics
Single Ended Data Input Swing						mV	20		525
Single Ended Data Output Swing						mV	180		385
Differential Signal Output Resistance						Ω	80		120
Differential Signal Input Resistance						Ω	80		120
3.3V LVCMOS Electrical Characteristics
Input High Voltage					3.3VIH	V	2.0		Vcc+0.3
Input Low Voltage					3.3VIL	V	-0.3		0.8
Input Leakage Current					3.3IIN	uA	-10		+10
Output HighVoltage (IOH=100uA)					3.3VOH	V	Vcc-0.2
Output Low Voltage (IOL=100uA)					3.3VOL	V			0.2
Minimum Pulse Width of Control Pin Signal					t_CNTL	us	100
1.2V LVCMOS Electrical Characteristics
Input High Voltage					1.2VIH	V	0.84		1.5
Input Low Voltage					1.2VIL V	0.3	1.2VIL V		0.36
Input Leakage Current					1.2IIN	uA	-100		+100
Output High Voltage					1.2VOH	V	1.0		1.5
Output Low Voltage					1.2VOL	V	-0.3		0.2
Output High Current					1.2IOH	mA			-4
Output Low Current					1.2IOL	mA	+4
Input Capacitance					Ci	pF			10

 

 

High Speed Electrical Characteristics

 

Parameter	Symbol	Unit	Min.	Max.	Notes
Impedance	Zd	Ω	90	110
Frequency		MHz	161.1328125		1/64 of electrical lane rate
Frequency Stability	△f	ppm	-100	100	For Ethernet
			-20	20	For Telecom
Differential Voltage	VDIFF	mV	400	900	Peak to Peak Differential
Common mode noise (rms)		mV		17.5
RMS jitter		ps		10	Random Jitter Over frequency band of 10KHZ<f<10MHZ
Clock Duty Cycle		%	40	60

 

Optical Characteristics

(Tested under recommended operating conditions,unless otherwise noted)

Parameter	Symbol	Unit	Min		Typ			Max			Notes
Optical Transmitter Characteristics
Signaling rate, each lane		GBd	25.78125 ±100 ppm						100GBase-LR4
			27.9525 ±20 ppm						OTU4
Four Lane Wavelength Range	λ1	nm	1294.53	1295.56		1296.59
	λ2		1299.02	1300.05		1301.09
	λ3		1303.54	1304.58		1305.63
	λ4		1308.09	1309.14		1310.19
Total launch power		dBm				10.5			100GBase-LR4
						10			OTU4
Average launch power, each lane	Pavg	dBm	-4.3			4.5			2
			-0.6			4
Optical modulation amplitude, each lane (OMA)2	OMA	dBm	-1.3			4.5
Difference in launch power between any two lanes (OMA)		dB				5
Extinction ratio	ER	dB	4						100GBase-LR4
			4			6.5			OTU4
Side-mode suppression ratio	SMSR	dB	30
Transmitter and dispersion penalty, each lane	TDP	dB				2.2
Optical return loss tolerance		dB				20
Transmitter reflectance3		dB				–12
Transmitter eye mask {X1, X2, X3, Y1, Y2, Y3}			{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}						100GBase-LR4
Optical Receiver Characteristics
Receive Rate for Each Lane		Gbps		25.78125			27.9525
Overload Input Optical Power	Pmax	dBm	5.5							3
Average Receive Power for Each Lane	Pin	dBm	-8.6 + ∆				3			4, 5
Receive Power In OMA for Each Lane	PinOMA	dBm					3
Difference in Receive Power in OMA between Any Two Lanes		dBm
Receiver Sensitivity in OMA for Each Lane	SOMA	dBm					-8.6			6
Stressed Receiver Sensitivity in OMA for Each Lane		dBm					-6.8			7, 8

 

Notes:

1. The supply current includes CFP2 module’s supply current and test board workingcurrent.

2. Average launch power, each lane (min) is informative for 100GBase-LR4, not the principal indicator of signal strength.

3.The receiver shall be able to tolerate , without damage, continuous exposure to an optical input signal having this average power level

4. The average receive power , each lane (max) for 100GBASE-ER4 is larger than the

100BASE-ER4 transmitter value to allow compatibility with 100BASE-LR4 units at short distances

5. Average receive power, each lane (min) is informative and not the principal indicator

of signal strength. A received power below this value cannot be compliant; however, a value above this does not ensure compliance

6. Receiver sensitivity (OMA), each lane (max) is informative

7. Measured with conformance test signal at TP3 for BER=10-12

8. conditions of stressed receiver sensitivity test: vertical eye closure penalty for each lane is 1.8dB;stressed eye J2 jitter for each lane is 0.3UI; stressed eye J9 jitter for each lane is 0.47UI.

 

 

Pin	Name	I/O	Logic	Description
1	GND
2	(TX_MCLKn)	O	CML	For optical waveform testing. Not for normal use.
3	(TX_MCLKp)	O	CML	For optical waveform testing. Not for normal use.
4	GND
5	N.C			No Connect
6	N.C
7	3.3V_GND			3.3V Module Supply Voltage Return Ground, can be separate or tied together with Signal Ground
8	3.3V_GND
9	3.3V			3.3V Module Supply Voltage
10	3.3V
11	3.3V
12	3.3V
13	3.3V_GND			3.3V Module Supply Voltage Return Ground, can be separate or tied together with Signal Ground
14	3.3V_GND
15	VND_IO_A	I/O		Module Vendor I/O A. Do Not Connect!
16	VND_IO_B	I/O		Module Vendor I/O A. Do Not Connect!
17	PRG_CNTL1	I	LVCMOS w/ PUR	Programmable Control 1 set over MDIO, MSA Default: TRXIC_RSTn, TX & RX ICs reset, "0": reset, "1" or NC: enabled = not used
18	PRG_CNTL2	I	LVCMOS w/ PUR	Programmable Control 2 set over MDIO, MSA Default: Hardware Interlock LSB, "00": ≤3W, "01": ≤6W, "10": ≤9W, "11" or NC: ≤12W = not used
19	PRG_CNTL3	I	LVCMOS w/ PUR	Programmable Control 2 set over MDIO, MSA Default: Hardware Interlock LSB, "00": ≤3W, "01": ≤6W, "10": ≤9W, "11" or NC: ≤12W = not used
20	PRG_ALRM1	O	LVCMOS	Programmable Alarm 1 set over MDIO, MSA Default: HIPWR_ON, "1": module power up completed, "0": module not high powered up
21	PRG_ALRM2	O	LVCMOS	Programmable Alarm 2 set over MDIO, MSA Default: MOD_READY, "1": Ready, "0": not Ready.
22	PRG_ALRM3	O	LVCMOS	Programmable Alarm 3 set over MDIO, MSA Default: MOD_FAULT, fault detected, "1": Fault, "0": No Fault
23	GND
24	TX_DIS	I	LVCMOS w/ PUR	Transmitter Disable for all lanes, "1" or NC = transmitter disabled, "0" = transmitter enabled
25	RX_LOS	O	LVCMOS	Receiver Loss of Optical Signal, "1": low optical signal, "0": normal condition
26	MOD_LOPWR	I	LVCMOS w/ PUR	Module Low Power Mode. "1" or NC: module in low power (safe) mode, "0": power-on enabled
27	MOD_ABS	O	GND	Module Absent. "1" or NC: module absent, "0": module present, Pull Up Resistor on Host
28	MOD_RSTn	I	LVCMOS w/ PDR	Module Reset. "0" resets the module, "1" or NC = module enabled, Pull Down Resistor in Module
29	GLB_ALRMn	O	LVCMOS	Global Alarm. “0": alarm condition in any MDIO Alarm register, "1": no alarm condition, Open Drain, Pull Up Resistor on Host
30	GND
31	MDC	I	1.2VCMOS	Management Data Clock (electrical specs as per IEEE Std 802.3ae-2008 and ba-2010)
32	MDIO	I/O	1.2VCMOS	Management Data I/O bi-directional data (electrical specs as per IEEE Std 802.3ae-2008 and ba-2010)
33	PRTADR0	I	1.2VCMOS	MDIO Physical Port address bit 0
34	PRTADR1	I	1.2VCMOS	MDIO Physical Port address bit 1
35	PRTADR2	I	1.2VCMOS	MDIO Physical Port address bit 2
36	VND_IO_C	I/O		Module Vendor I/O C. Do Not Connect!
37	VND_IO_D	I/O		Module Vendor I/O D. Do Not Connect!
38	VND_IO_E	I/O		Module Vendor I/O E. Do Not Connect!
39	3.3V_GND
40	3.3V_GND
41	3.3V			3.3V Module Supply Voltage
42	3.3V
43	3.3V
44	3.3V
45	3.3V_GND
46	3.3V_GND
47	N.C			No Connect
48	N.C
49	GND
50	(RX_MCLKn)	O	CML	For optical waveform testing. Not for normal use.
51	(RX_MCLKp)	O	CML
52	GND
53	GND
54	N.C.
55	N.C.
56	GND
57	RX0p			25 Gbps receiver data; Lane 0
58	RX0n			25 Gbps receiver data bar; Lane 0
59	GND
60	RX1p			25 Gbps receiver data; Lane 1
61	RX1n			25 Gbps receiver data bar; Lane 1
62	GND
63	N.C.
64	N.C.
65	GND
66	N.C.
67	N.C.
68	GND
69	RX2p			25 Gbps receiver data; Lane 2
70	RX2n			25 Gbps receiver data bar; Lane 2
71	GND
72	RX3p			25 Gbps receiver data; Lane 3
73	RX3n			25 Gbps receiver data bar; Lane 3
74	GND
75	N.C.
76	N.C.
77	GND
78	(REFCLKp)		CML	Module reference clock. No connect.
79	(REFCLKn)		CML	Module reference clock. No connect.
80	GND
81	N.C.
82	N.C.
83	GND
84	TX0p			25 Gbps transmitter data; Lane 0
85	TX0n			25 Gbps transmitter data bar; Lane 0
86	GND
87	TX1p			25 Gbps transmitter data; Lane 1
88	TX1n			25 Gbps transmitter data bar; Lane 1
89	GND
90	N.C.
91	N.C.
92	GND
93	N.C.
94	N.C.
95	GND
96	TX2p			25 Gbps transmitter data; Lane 2
97	TX2n			25 Gbps transmitter data bar; Lane 2
98	GND
99	TX3p			25 Gbps transmitter data; Lane 3
100	TX3n			25 Gbps transmitter data bar; Lane 3
101	GND
102	N.C.
103	N.C.
104	GND

 

 

 

 

 

 

 

Hardware Control Pins

The CFP2 Module support real-time control functions via hardware pins, listed in the following

Pin	Symbol	Description	I/O	Logic	H	L	Pull-up/down
17	PRG_CNTL1	Programmable Control 1 MSADefault:TRXIC_RST n , TX&RX ICs reset, “0”:reset;”1”	I	3.3V LVCMOS	per CFP MSA Management Interface Specification		Pull-Up Note1
18	PRG_CNTL2	Programmable Control 2 MSADefault :Hardware Interlock LSB	I	3.3V LVCMOS			Pull-Up Note1
19	PRG_CNTL3	Programmable Control 3 MSA Default:Hardware Interlock MSB	I	3.3V LVCMOS			Pull-Up Note1
26	MOD_LOPWR	Module Low Power Mode	I	3.3V LVCMOS Low Power Enable Pull-Up	Low Power	Enable	Pull-Up Note1
28	MOD_RSTn	Module Reset(Invert)	I	3.3V LVCMOS	Enable	Reset	Pull-Down Note2

Notes:

1. Pull-Up resistor (4.7KOhm to 10 KOhm) is located within the CFP2 module

2. Pull-Down resistor (4.7KOhm to 10 kOhm) is located within the CFP2 module

 

Hardware Alarm Pins

The CFP2 Module supports alarm hardware pins listed in the following

Pin	Symbol	Description	I/O	Logic	H	L		Pull-up/down
20	PRG_ALRM 1	Programmable Alarm 1 MSA Default:HIPWR_ON	O	3.3V LVCMOS	Active High per MDIO document
21	PRG_ALRM2	Programmable Alarm 2 MSA default:MOD_READY , Ready State has been reached	O	3.3V LVCMOS
22	PRG_ALRM 3	Programmable Alarm 3 MSA Default: MOD_FAULT	O	3.3V LVCMOS
27	MOD_ABS	Module Absent	O	3.3V LVCMOS	Absent		Present	Pull-Down Note1
25	RX_LOS	Receiver Loss of Signa	O	3.3V LVCMOS	Loss of Signal		OK

 

Note:

1:.Pull-Down resistor (<100Ohm) is located within the CFP2 module. Pull-up should be located on the host

 

 

Management Interface Pins(MDIO)

The CFP2 Module supports alarm, control and monitor functions via an MDIO bus. The CFP2 MDIO pins are listed in the following:

.	Symbol	Description	I/O	Logic	H	L	Pull-up/down
29	GLB-ALRMn	Global Alarm	I	3.3V LVCMOS	OK	Alarm
32	MDIO	Management interface bidirectional data	I/O	1.2V LVCMOS
31	MDC	Management interface clock input	I	1.2V LVCMOS
33	PRTADR0	MDIO physical port address bit 0	I	1.2V LVCMOS	Per MDIO
34	PRTADR1	MDIO physical port address bit 1	I	1.2V LVCMOS
35	PRTADR2	MDIO physical port address bit 2	I	1.2V LVCMOS

 

 

 

Hardware Signaling Pin Timing Requirements

Timing Parameters for CFP2 hardware Signal Pins are listed in the following:

Parameter	Symbol	Unit	Min.	Max.	Notes
Hardware MOD_LOPWR assert	t_MOD_LOPWR_assert	ms		1
Hardware MOD_LOPWR deassert	t_MOD_LOPWR_deassert	s		60	Stored in NVR register 8072h
Management interface clock period	t_prd	ns	250		MDC is 4 MHz rate or less
Host MDIO setup time	t_setup	ns	10
Host MDIO hold time	t_hold	ns	10
CFP2 MDIO delay time	t_delay	ns	0	175
GLB_ALRM assert time	GLB_ALRMn_assert	ms		150	A logic “OR” of associated MDIO alarm and status registers
GLB_ALRM deassert time	GLB_ALRMn_deassert	ms		150	A logic “OR” of associated MDIO alarm and status registers
Minimum pulse width of control pin signal	t_CNTL	μs	100
Initialization time from reset	t_initialize	s		2.5
TX_Disable assert time	t_deassert	μs		100	Transmitter disable, application specific
TX_Disable deassert time1	t_assert	ms		5	Time from Tx Disable pin deasserted until CFP2 module enters the Tx-turn-on state Stored in NVR register 8073h
RX_LOS assert time	t_loss_assert	μs		100	From occurrence of loss of signal to assertion of RX_LOS
RX_LOS deassert time	t_loss_deassert	μs		100	From occurrence of return of signal to deassert of RX_LOS

 

 

CFP2 Lane Assignment

Lane	Center Frequency	Center Wavelength	Wavelength Range
L0	231.4 THz	1295.56 nm	1294.53 to 1296.59 nm
L1	230.6 THz	1300.05 nm	1299.02 to 1301.09 nm
L2	229.8 THz	1304.58 nm	1303.54 to 1305.63 nm
L3	229.0 THz	1309.14 nm	1308.09 to 1310.19 nm

 

 

 

                                           Package Dimensions

 

 

Ordering Information

Part Number	Description
ND-100GCFP-LR	100G CFP2 LR4 10Km -20~75℃