SFP28 25G SR 850nm 100m over MM DDM-FTTD -Fiber to the desk solution provider-25G/40G/100G SFP/network adapter/Media converter/AOC/DOC cable

PH-SFP2825G-SR Overview

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.

PH-SFP2825G-SR Specification

SFP28 Transceiver 850nm 100m over MM DDM

Features

Supports 25Gbps data rate
850nm VCSEL laser and PIN photo-detector
Duplex LC receptacle optical interface compliant
Single +3.3V power supply
Power dissipation < 1W
Hot-pluggable SFP28 form factor
Internal CDR on both Transmitter and Receiver channel
Maximum link length of 70m on OM3 MMF and 100m on OM4 MMF
Operating temperature range:
Commercial: 0℃~+70℃
RoHS Compliant
Digital diagnostics functions are available via the I2C interface

Application

25GBASE-SR Ethernet
32G Fiber Channel

Standard

Compliant with MSA SFP+ specification(SFF-8431)
Compliant with SFF-8472
CPRI Line Rate Option: 24.33Gb/s
Compliant to IEEE 802.3ae

Specification

Absolute Maximum Ratings
Parameter	Symbol	Min	Max	Unit
Storage temperature	TS	-40	85	℃
Power Supply Voltage	Vcc	0	3.6	V
Relative Humidity	RH	5	95	%

Recommended Operating Conditions
Parameter	Symbol	Min	Typical	Max	Unit
Operating Case Temperature (Commercial)	Tc	0		70	℃
Power Supply Voltage	Vcc	3.13	3.3	3.47	V
Supply Current	Icc			300	mA
Data Rate		-	25.78	28.05	Gbps
Fiber Length on 50/125μm high-bandwidth (OM3) MMF				70	m
Fiber Length on 50/125μm high-bandwidth (OM4) MMF				100	m

Optical transmitter Characteristics
Parameter			Symbol	Min	Typical	Max	Unit	Notes
Launched Power (avg.)			Pout	-9.1		2.4	dBm
Optical Power OMA			POMA	-6.4		3	dBm
Operating Wavelength Range			λc	840	850	860	nm
Spectral Width (-20dB)			σ			0.6	nm
Extinction Ratio			ER	2			dB
Differential data input swing			VIN,PP	40		1000	mV
Input Differential Impedance			ZIN	90	100	110	Ω
TX		Disable		2.0		Vcc	V
TX		Enable		0		0.8	V
TX		Fault		2.0		Vcc	V
TX		Normal		0		0.8	V
Output Eye Diagram			Complies with IEEE802.3z eye masks when filtered
Optical receiver Characteristics
Parameter			Symbol	Min	Typical	Max	Unit	Notes
Receiver Sensitivity			S			-11	dBm
Stressed Sensitivity (OMA)				-	-	-5.2	dBm
Wavelength Range			λc	840	850	860	nm
Receiver Power (OMA)			P			3	dBm
LOS	Optical De-assert		Pd			-13	dBm
LOS	Optical Assert		Pa	-30			dBm
LOS			High	2.0		Vcc	V
LOS			Low			0.8	V
LOS hysteresis				0.5			dB
Differential data output swing			Vout,PP	500		1130	mV

Timing and Electrical
Parameter	Symbol	Min	Max	Unit	Conditions
Tx-Disable assert time	T_off		100	us	Rising edge of Tx_Disable to fall of output signal below 10% of nominal
Tx-Disable negate time	T_on		2	ms	Falling edge of Tx_Disable to rise of output signal above 90% of nominal,this is only applies in normal operation,ont during start up or fault recorvery.
Time to initialize 2-wire interface	t_2w_start_up		300	ms	From power on or hot plug after the supply meeting
Time to initialize	T_start_up		300	ms	From power supplies meeting hot plug or Tx disable negated during power up ,or Tx_Fault recovery,unitl non-cooled power level I part is full operational
Time to initialize cooled module and time to power up a cooled module to power level II	T_start_up_cooled		90	S	From power supplies meeting hot plug or Tx disable negated during power up ,or Tx_Fault recovery,unitl non-cooled power level I part is full operational.Also,from stoop bit low-to-high SDA transition enabling Power Level II until cooled module is fully operational.
Time to Power up to level II	T_power_level2		300	ms	From stop bit low-to-hight SDA transition enabling power Level II until non-cooled module is fully opertational.
Time to Power Down from level II	T_power_down		300	ms	From stop bit low-to-high SDA transition disabling power level II until module is within power level I requirements.
Tx_Fault assert	Tx_Fault_on		1	ms	From occurrence of fault to assertion of Tx_Fault.
Tx_Fault assert for cooled module	Tx_Fault_on_cooled		50	ms	From occurrence of fault to assertion of Tx_Fault.
Tx_Fault Reset	T_reset	10		us	Time Tx_Disable must be held high to reset Tx_Fault.
RSO,RSI rate select timing for FC	T_RSO_FC,T_RSI_FC		500	us	From assertion till stable output
RSO,RSI rate select timing non FC	T_RSO,T_RSI		24	ms	From assertion till stable output
Rx_LOS assert delay	T_los_on		100	us	From occurrence of loss of signal to assertion of Rx_LOS
Rx_LOS assert delay	T_los_off		100	us	From occurrence of loss of signal to negation of Rx_LOS

Digital Diagnostic Monitoring Information

Parameter	Accuracy	Calibration	Range
Temperature	±3°C	internal/ External	0~70°C
Voltage	±3%	internal/ External	3.0 to 3.6 V
Bias Current	±10%	internal/ External	0 to 20 mA
TX Power	±3dB	internal/ External	-9.1 to 2.4 dBm
RX Power	±3dB	internal/ External	-11 to 0 dBm

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 Descriptions

Pin	Name	Function/Description	Logic	Note
1	VeeT	Transmitter Ground		1
2	TX_Fault	Transmitter Fault	LVTTL-O	2
3	TX_Disable	Transmitter Disable. High: Transmitter off; Low: Transmitter on	LVTTL-I
4	SDA	2-Wire Serial Interface Data Line	LVTTL-O/I	2
5	SCL	2-Wire Serial Interface Clock	LVTTL-I	2
6	Mod_ABS	Module Absent, Connect to VeeT or VeeR in Module
7	RS0	Rate Select 0, optionally controls SFP module receiver	LVTTL-I
8	RX_LOS	Receiver Loss of Signal indication. High: loss of signal; Low: signal detected	LVTTL-O
9	RS1	Rate Select 1, optionally controls SFP module transmitter	LVTTL-I
10	VeeR	Receiver Ground		1
11	VeeR	Receiver Ground		1
12	RD-	Receiver Inverted Data Output	CML-O
13	RD+	Receiver Data Output	CML-O
14	VeeR	Module Receiver Ground		1
15	VccR	Receiver Power 3.3V Supply
16	VccT	Transmitter Power 3.3V Supply
17	VeeT	Module Transmitter Ground		1
18	TD+	Transmitter Non-Inverted Data Input	CML-I
19	TD-	Transmitter Inverted Data Input	CML-I
20	VeeT	Module Transmitter Ground		1

Notes:

Module ground pins GND are isolated from the module case.

Shall be pulled up with 4.7K-10Kohms to a voltage between 3.15V and 3.45V on the host board.

Package Outline

Dimensions are in millimeters. All dimensions are ±0.2mm unless otherwise specified. (Unit: mm)

Regulatory Compliance

Feature	Test	Method
Electrostatic Discharge (ESD) to the Electrical Pins	MIL-STD-883E Method 3015.7	Class 1 (>1.5kV) – Human Body Model
Electrostatic Discharge (ESD) Immunity	IEC61000-4-2	Class 2(>4.0kV)
Electromagnetic Interference (EMI)	CISPR22 ITE Class B FCC Class B CENELEC EN55022 VCCI Class 1	Comply with standard
Immunity	IEC61000-4-3	Comply with standard
Eye Safety	FDA 21CFR 1040.10 and 1040.11 EN (IEC) 60825-1,2	Compatible with Class I laser Product

Network Cabling

Optical Cabling

Media converter

Optical Transceiver SFP

Network adapter

DAC and AOC

PH-SFP2825G-SR

SFP28 25G SR 850nm 100m over MM DDM

Thanks a lot for your inquiry and we will handle it as early as possible.

PH-SFP2825G-SR Overview

PH-SFP2825G-SR Specification

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