Name: 25G SFP28 BIDI 10km
Brand: T&S Communications Co., Ltd.
Availability: InStock

T&S 25G BIDI SFP28 transceivers are designed for bi-directional 25G serial optical data communications by using 1270nm/1330nm or 1270nm/1310nm wavelengths. The modules are suitable for 25G Ethernet and CPRI (option 10) applications, like in 5G mobile networks. The family offers modules for the I-temp range from -40⁰C to +85⁰C and C-temp range from 0⁰C to +70⁰C.

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25G SFP28 BIDI 10km Specification Download

Features of 25G SFP28 BIDI 10km

Compliant with MSA SFP+ Specification SFF-8402
Compliant with SFP+ MSA with LC connector
2-wire interface with integrated Digital Diagnostic monitoring
Data Rate up to 25.78 Gb/s
1270nm DFB laser and PIN receiver for TSSPB-2325G-LR
330nm DFB laser and PIN receiver for TSSPB-3225G-LR
Metal enclosure, for lower EMI
Distance up to 10km transmission on SMF
Single 3.3V Power Supply and Power Dissipation < 1.2W
Case operation temperature range：Standard temperature: 0°C to 70°C
Extended temperature: -40°C to 85°C
RoHS6 compliant (lead free)

Applications of 25G SFP28 BIDI 10km

25G Ethernet
CPRI 10

Specifications of 25G SFP28 BIDI 10km

Absolute Maximum Ratings

Recommended Operating Conditions

Electrical characteristics

Optical characteristics (TSSPB-2325G-LR, 1270 DFB & PIN/TIA)

Optical characteristics (TSSPB-3225G-LR, 1330 DFB & PIN/TIA)

Parameters	Symbol	Min.	Max.	Unit
Power Supply Voltage	VCC	-0.5	+3.6	V
Storage Temperature	Tc	-40	+85	°C
Relative Humidity	RH	0	85	%

Parameter	Symbol	Min	Typical	Max	Unit
Power Supply Voltage	VCC	3.15	3.30	3.45	V
Operating Case Temperature(standard)	Tca	0	-	70	°C
Operating Case Temperature(industrial)	Tca	-40	-	85	°C

Parameter	Symbol	Min.	Typical	Max	Unit	Ref.
Supply Current	Icc	-	-	348	mA	-
Power Consumption	-	-	-	1200	mW	-
Transmitter
Input differential impedance	Rin	-	100	-	Ω	1
Differential Input Voltage swing	Vin	300	-	1100	mV	-
Transmit Disable Voltage	VD	VCC -1.3	-	VCC	V	-
Transmit Enable Voltage	Ven	Vee	-	Vee+0.8	V	2
Receiver
Output differential impedance	Rout	-	100	-	Ω	-
Differential Output Swing	Vout	500	-	800	mV	3
Loss of Signal –Asserted	-	2.0	-	VCC+0.3	V	4
Loss of Signal –Negated	-	Vee		Vee+0.8	V	4

Notes:

1. Connected directly to TX data input pins. AC coupled thereafter.

2. Or open circuit.

3. Into 100 ohms differential termination.

4. Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.

Parameter	Symbol	Min.	Typical	Max	Unit
Transmitter
Optical Wavelength	λ	1260	1270	1280	nm
Side Mode Suppress Ratio	SMSR	30	-	-	dB
Spectral Width(-20dB)	Δλ	-	-	1	nm
Average Output Power	Po	-5	-	2	dBm
Extinction Ratio	ER	3.5	-	-	dB
Receiver
Receiver Sensitivity (OMA)	SEN	-	-	-18	dBm
Receiver Overload	Pmax	2	-	-	dBm
Centre Wavelength	λ	1320	-	1340	nm
LOS De-Assert	Lda	-	-	-19	dBm
LOS Assert	Lsa	-30	-	-	dBm
LOS Hysteresis	Lh	0.5	-	-	dB

Parameter	Symbol	Min.	Typical	Max	Unit	Ref.
Transmitter
Optical Wavelength	λ	1320	1330	1340	nm	-
Side Mode Suppress Ratio	SMSR	30	-	-	dB	-
Spectral Width(-20dB)	Δλ	-	-	1	nm	-
Average Output Power	Po	-5	-	2	dBm	1,2
Extinction Ratio	ER	3.5	-	-	dB
Receiver
Receiver Sensitivity (OMA)	SEN	-	-	-18	dBm	2
Receiver Overload	Pmax	2	-	-	dBm	-
Centre Wavelength	λ	1260	-	1270	nm	-
LOS De-Assert	Lda	-	-	-19	dBm	-
LOS Assert	Lsa	-30	-	-	dBm	-
LOS Hysteresis	Lh	0.5	-	-	dB	-

Notes:

1. Output power is coupled into a 9/125μm SMF.

2. ITU-T G.694.2 CWDM wavelength from 1271nm to 1611nm, each step 20nm.

3. BER less than 1E-12 and PRBS 2^{31 -1} test pattern.

Electrical Pad Layout of 25G SFP28 BIDI 10km

Pin definition of 25G SFP28 BIDI 10km

Pin	Symbol	Name/Description
1	VEET [1]	Transmitter Ground
2	Tx_FAULT [2]	Transmitter Fault
3	Tx_DIS [3]	Transmitter Disable. Laser output disabled on high or open
4	SDA [2]	2-wire Serial Interface Data Line
5	SCL [2]	2-wire Serial Interface Clock Line
6	MOD_ABS [4]	Module Absent. Grounded within the module
7	RS0 [5]	No connection required
8	RX_LOS [2]	Loss of Signal indication. Logic 0 indicates normal operation
9	RS1 [5]	No connection required
10	VEER [1]	Receiver Ground
11	VEER [1]	Receiver Ground
12	RD-	Receiver Inverted DATA out. AC Coupled
13	RD+	Receiver DATA out. AC Coupled
14	VEER [1]	Receiver Ground
15	VCCR	Receiver Power Supply
16	VCCT	Transmitter Power Supply
17	VEET [1]	Transmitter Ground
18	TD+	Transmitter DATA in. AC Coupled
19	TD-	Transmitter Inverted DATA in. AC Coupled
20	VEET [1]	Transmitter Ground

Notes:

[1] Module circuit ground is isolated from module chassis ground within the module.

[2] Should be pulled up with 4.7k – 10k ohms on host board to a voltage between 3.15Vand 3.6V.

[3] Tx_Disable is an input contact with a 4.7 kΩ to 10 kΩ pullup to VCCT inside the module.

[4] Mod_ABS is connected to VeeT or VeeR in the SFP+ module. The host may pull this contact up to VCC_Host with a resistor in the range 4.7 kΩ to10 kΩ.Mod_ABS is asserted “High” when the SFP+ module is physically absent from a host slot.

[5] RS0 and RS1 are module inputs and are pulled low to VeeT with > 30 kΩ resistors in the module.

Ordering information of 25G SFP28 BIDI 10km

Part Number	Product Description
TSSPB-2325G-LRC	25Gbps, SFP+ BIDI TX1270nm/RX1330nm 10km, 0°C ~ +70°C
TSSPB-3225G-LRC	25Gbps, SFP+ BIDI TX1330nm/RX1270nm, 10km, 0°C ~ +70°C
TSSPB-2325G-LRT	25Gbps, SFP+ BIDI TX1270nm/RX1330nm 10km, -40°C ~ +85°C
TSSPB-3225G-LRT	25Gbps, SFP+ BIDI TX1330nm/RX1270nm, 10km, -40°C ~ +85°C

References of 25G SFP28 BIDI 10km

1. SFP28 MSA

2. Directive 2011/65/EU of the European Parliament and of the Council, “on the restriction of the use of certain hazardous substances in electrical and electronic equipment,” July 1, 2011.

Important Notice of of 25G SFP28 BIDI 10km

Performance figures, data and any illustrative material provided in this data sheet are typical and must be

specifically confirmed in writing by T&S before they become applicable to any particular order or

contract. In accordance with the T&S policy of continuous improvement specifications may change

without notice. The publication of information in this data sheet does not imply freedom from patent or other protective rights of T&S or others. Further details are available from any T&S sales representative.