Delta Electronics SPBD-1250B4Q1RT User Manual

SPBD-1250B4Q1RT

Intelligent SFP Bi-Directional Transceiver
Module for Gigabit Ethernet and Fast Ethernet

FEATURES

 RoHS compliant

 Digital Diagnostic SFF-8472, Rev. 9.5 MSA

compliant

 Support Multi-Rate for Gigabit Ethernet and

Fast Ethernet

 Simplex LC connector with 1490nm

Transmitter and 1310nm Receiver



Single + 3.3V power supply and TTL logic
interface



Bellcore GR-468 compliant



Laser class 1 product which comply with the
requirements of IEC 60825-1 and IEC 60825-2

Description

The SPBD-1250xxxx series are hot pluggable

3.3V Small-Form-Factor (SFP) Bi-Directional
transceiver module designed expressly for
high-speed communication applications that
require rates of up to 1250Mbit/sec. It is
compliant with the Gigabit Ethernet and Fast
Ethernet standards, as well as the SFP
Multisource Agreement (MSA).

The SPBD-1250xxxx transceivers provide with
the LC receptacle that is compatible with the
industry standard LC connector. The transceiver
is also compatible with industry standard RFT
connector and cage. It also includes a LOS
(Loss Of Signal) circuit that provides a TTL
logic-high output when an unusable optical
signal level is detected.

The module includes 1490nm un-cool DFB
laser, InGaAs PIN, Preamplifer and WDM filter in
a high-integrated optical assembly for
high-density system application. The SFP
Bi-Directional transceiver can upgrade
transmission capacity very convenient without
installing new fibers.

Application

 IEEE 802.3ah 1000BASE-BX

 IEEE 802.3ah 100BASE-BX

 Gigabit Ethernet/ Fast Ethernet

 FTTx WDM Broadband Access

Performance



SPBD-1250B4Q1RT data link up to 10km in
9/125um single mode fiber.

 Support industrial temperature operating

DELTA ELECTRONICS, INC.

1 Revision: S1

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SPBD-1250B4Q1RT

1. Absolute Maximum Ratings

Parameter Symbol Min. Typ. Max. Unit Note

Storage Temperature Ts -40 85 ºC
Storage Ambient Humidity HA 5 95 %
Power Supply Voltage VCC 0 5 V
Signal Input Voltage -0.3 Vcc+0.3 V
Optical Input Power (Peak) +3 dBm

2. Recommended Operating Conditions

Parameter Symbol Min. Typ. Max. Unit Note

Operating Case Temperature TC -40 85 ºC Note (1)
Ambient Humidity HA 5 85 %
Power Supply Voltage VCC 3.135 3.3 3.465 V
Power Supply Current ICC 300 mA
Power Supply Noise Rejection 100 mVp-p

Data Rate

1250

-100ppm

1250

1250

+100ppm

Mbps

Transmission Distance 10 km

Note (1). Measured on topside of case front center.

Non-condensing

100Hz to 1MHz

3. Specification of Transmitter

Parameter Symbol Min. Typ . Max. Unit Note

Average Launched Power PO -9 -6 -3 dBm Note (1)
Optical Extinction Ratio ER

Optical Modulation Amplitude OMA

Center Wavelength
Spectrum Width (-20dB)

λ

C

σ

9

195

-7.1

1480 1490 1500 nm DFB Laser

0.88 nm
Side Mode Suppression Ratio SMSR 30 dB
Transmitter OFF Output Power P

Off

-45
Optical Rise/Fall Time tr/tf 260 ps Note (2)
Deterministic Jitter DJ 80 ps
Total Jitter TJ 227 ps Note (3)
Relative Intensity Noise RIN12OMA

-113

Optical Return Loss Tolerance ORLT 12 dB
Transmitter Reflectance -12 dB
Output Eye Mask

{X1,X2,Y1,Y2,Y3}

Compliant with IEEE 802.3ah standard

{0.22,0.375,0.20,0.20,0.30}

Note (1). Launched power (avg.) is power coupled into a single mode fiber.

Note (2). These are unfiltered 20-80% values.

7

Note (3). Measure at 2

-1 NRZ PRBS pattern.

Note (4). Eye Mask definition

dB

uW

dBm

dBm

dB/Hz

Note (4)

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N

+

-

ormalized Amplitude

SPBD-1250B4Q1RT

-

-

-

4. Specification of Receiver

Parameter Symbol Min. Typ . Max. Unit Note

Input Optical Wavelength
Receiver Sensitivity PIN
Input Saturation Power (Overload) P

Receive Sensitivity OMA OMA

LOS-Deassert Power PA - -24 dBm
LOS-Assert Power PD -44 dBm Note (3)
LOS Hysteresis PA-PD 0.5 2 6 dB
Receiver Reflectance -12 dB Note (4)
Stressed Receive sensitivity -15.4 dBm

Stressed Receive sensitivity OMA

Vertical Eye-closure Penalty V ECP 2.6 dB
Deterministic Jitter DJ 170 ps
Total Jitter TJ 266 ps
Output Data Rise/Fall time tr/tf 260 ps Note (5)
Receiver 3dB upper cutoff frequency 1500 MHz

Note (1). Measured with 1310nm, ER=9dB; BER =<10

Note (2). Specified with minimum optical extinction ration of 9dB.

Note (3). When LOS asserted, the data output is Low-level (fixed)

Note (4). When the terminal is viewed from the optical path, the reflection toward the optical path of the

optical signal with a central wavelength of 1260nm to 1360nm transmitted to terminal.

Note (5). These are 20%~80% values

λ

IN

SAT

1260 1360 nm PIN-PD

-23

-3 dBm

5.0

-21.1

44.8

-13.5

-12

@PRBS=27-1 NRZ

dBm Note (1)

uW

dBm

uW

dBm

Note (2)

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SPBD-1250B4Q1RT

5. Electrical Interface Characteristics

Parameter Symbol Min. Typ . Max. Unit Note

Transmitter
Total Supply Current ICC A mA Note (1)
Differential Data Input Swing VDT 500 2400 mV
Differential line input Impedance RIN 80 100 120 Ohm
Transmitter Disable Input-High V
Transmitter Disable Input-Low V
Transmitter Fault Output-High V
Transmitter Fault Output-Low V
Transmitter Fault Pull up Resistor R

2 VCC V Note (2)

DISH

0 0.8 V

DISL

2 VCC+0.3 V

TXFH

0 0.8 V

TXFL

TX_FAULT

4.7 10 k Note (3)

Receiver
Total Supply Current ICC B mA Note (1)
Differential Data Output Swing VDR 400 900 mV
LOS Output Voltage-High V
LOS Output Voltage-Low V
Receiver LOS Load R

2 VCC+0.3 V

LOSH

0 0.8 V

LOSL

4.7 10 k Note (3)

RXLOS

Note (1). A (TX)+ B (RX) = 300mA

(A: Not include termination circuit; B: using a resister of 150 between Data-output and ground)

Note (2). There is an internal 4.7 to 10k pull-up resistor to VccT.

Note (3). Pull up to V

on host Board.

CC

Note (4). Internally AC coupled with CML output, but requires a 100Ohm differential termination at or

internal to Serializer/ Deserializer.

p-p

Note (4)

p-p

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SPBD-1250B4Q1RT

6. Enhanced Digital Diagnostic Interface

The memory map in the following describes an extension to the memory map defined in SFP MSA.

The enhanced interface uses the two wire serial bus address 1010001X(A2h) to provide diagnostic

information about the module’s present operating conditions.

2 wire address 1010000 X (A0h) 2 wire address 1010001 X (A2h)

0 0

Alarm and Warning Thresholds

(56 bytes)

Serial ID Defined by SFP MSA

95
96 96

127

128 128

(96 bytes)

Vender Specific

(32 bytes)

Reserved in SFP MSA

(128 bytes)

55
56

Cal Constants

(40 bytes)

95

Real Time Diagnostic Interface

(24 bytes)

119
120

Vender Specific

127

User Writable EEPROM

(120 bytes)

247

255

7. Digital Diagnostic Monitor Accuracy

Parameter Accuracy Unit Calibration Note

Transceiver Internal Temperature
Power Supply Internal Voltage
TX Bias Current ± 10%
TX Optical Power ± 3dB
RX Optical Power

Temperature and Voltage is measured internal to the transceiver.

Note.

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± 3℃

3%

±

3dB

±

248

255

℃

V Internal VCC=3.3V±5%

mA Internal Specified by nominal bias value
dBm Internal -9 to -3dBm
dBm Internal -23 to -3dBm

5 Revision: S1

Internal

Vender Specific

(8 bytes)

T

C=-40~+85℃

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SPBD-1250B4Q1RT

8. Pin Description

SFP Transceiver Electrical Pad Layout Host Board Connector Pad Layout

Pin Function Definitions

Pin Num. Name Function Plug Seq. Notes

1 VeeT Transmitter Ground 1 Note (1)
2 TX Fault Transmitter Fault Indication 3 Note (2)
3 TX Disable Transmitter Disable 3 Note (3)
4 MOD-DEF2 Module Definition 2 3 Note (4), 2 wire serial ID interface
5 MOD-DEF1 Module Definition 1 3 Note (4), 2 wire serial ID interface
6 MOD-DEF0 Module Definition 0 3 Note (4), Grounded in Module
7 Rate Select Not Connect 3 Function not available
8 LOS Loss of Signal 3 Note (5)

9 VeeR Receiver Ground 1
10 VeeR Receiver Ground 1
11 VeeR Receiver Ground 1
12 RD- Inv. Received Data Out 3 Note (6)
13 RD+ Received Data Out 3 Note (6)
14 VeeR Receiver Ground 1
15 VccR Receiver Power 2 Note (7)
16 VccT Transmitter Power 2 Note (7)
17 VeeT Transmitter Ground 1
18 TD+ Transmit Data In 3 Note (8)
19 TD- Inv. Transmit Data In 3 Note (8)
20 VeeT Transmitter Ground 1

Plug Seq.: Pin engagement sequence during hot plugging.

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SPBD-1250B4Q1RT

Notes:

1) Circuit ground is internally isolated from frame (chassis) ground. Tx GND and Rx GND may be internally isolated

within the TRx module.

2) TX Fault is an open collector/drain output, which should be pulled up with a 4.7K~10K resistor on the host board.

Pull up voltage between 2.0V and VccT+0.3V. The output indicates Low when the transmitter is operating

normally, and High with a laser fault including laser end-of-life. In the low state, the output will be pulled to less

than 0.8V.

3) TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module

with a 4.7 – 10 K  resistor. Its states are:

Low (0 – 0.8V): Transmitter on

(>0.8, < 2.0V): Undefined

High (2.0 – 3.465V): Transmitter Disabled

Open: Transmitter Disabled

4) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10K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

5) LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K – 10K resistor.

Pull up voltage between 2.0V and VccR+0.3V. When high, this output indicates the received optical power is

below the worst-case receiver sensitivity. Low indicates normal operation. In the low state, the output will be

pulled to less than 0.8V.

6) RD-/+: These are the differential receiver outputs. They are AC coupled 100 differential lines which should be

terminated with 100 (differential) at the user SERDES. The AC coupling is done inside the module and is thus

not required on the host board.

7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP

connector pin. Recommended host board power supply filtering is shown below page. Inductors with DC

resistance of less than 1 Ohm should be used in order to maintain the required voltage at the SFP input pin with

3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP

transceiver module will result in an inrush current of no more than 30 mA greater than the steady state value.

8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100 

differential termination inside the module. The AC coupling is done inside the module and is thus not

required on the host board. The inputs will accept differential swings of 500 – 2400 mV (250 – 1200

mV single-ended), though it is recommended that values between 500 and 1200 mV differential (250 –

600 mV single-ended) be used for best EMI performance.

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9. Recommend Interface Circuit

SPBD-1250B4Q1RT

Protocol Vcc

Tx_Disable

Tx_Fault

Rx_LOS

VCC

SerDes ICProtocol IC

PLD / PAL

1uH

1uH

RES1

100 Ohms*

3.3V

0.1uF10uF

RES1

3.3V

RES1 RES1 RES1

RES1 = 4.7k to 10k Ohms

* Depands on SerDes IC used

SFP Host Board Schematic

0.1uF

Tx_Disable

Tx_Fault

TD +

TD -

VeeT

0.1uF10uF

RD +

RD -

Rx_LOS

VeeR

Mod_def 2

Mod_def 1

Mod_def 0

DELTA SFP Module

VccT

10k Ohms

0.01uF

100 Ohms

0.01uF

VccR

0.01uF

0.01uF

Laser Dr iver

Preamp &
Quantizer

EEPROM

Laser Di ode

Photo Diode

Recommended Host Board Supply Filtering Network

DELTA ELECTRONICS, INC.

Design criterion of the capacitor used is the

resonant frequency and its value must be in the

order of the nominal data rate. Short trace

lengths are mandatory.

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10. Outline Dimensions

SPBD-1250B4Q1RT

Class 1 Laser Product

XXXX nm Tx / Rx XXXX nm

FS

Made in x

1040.10 and 1040.11

Complies with 21 CFR

Transmitter Wavelength Latch Color Identifier

1310nm
1490nm

Week (52Weeks/Year) : 1月2日 =01

Black
Violet

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SPBD-1250B4Q1RT

11. Regulatory Compliance

Feature Test M e t h o d Reference Performance

Electrostatic Discharge

(ESD) to the Electrical

Pins

(ESD) to the Simplex

Receptacle

Radio Frequency

Electromagnetic Field

Immunity

Electromagnetic

Interference (EMI)

Laser Eye Safety

Component Recognition

Human Body Model

(HBM)

Machine Model (MM) EIA-JESD22-A115

Contact Discharge IEC/EN 61000-4-2 Electrostatic Discharge

Air Discharge

IEC/EN 61000-4-3

FCC Part 15 Class B

FDA/CDRH

TUV

TUV

UL/CSA

MIL-STD-883E Method 3015.7

EIA-JESD22-A114

IEC/EN 61000-4-2

EN 55022 Class B

(CISPR 22A)

FDA 21CFR 1040.10, 1040.11

IEC/EN 60825-1

IEC/EN 60825-2

IEC/EN 60950

UL 60950

(1) Satisfied with

electrical

characteristics of

product spec.

(2) No physical damage

CDRH File # 0420993

TUV Certificate #

R50032471

UL File # E239394

Appendix A. Document Revision

Version No. Date Description

S0 2006-08-15 Preliminary datasheet
S1 2007-03-12 Change the specification of Optical Rise/Fall Time from 200ps to 260ps.

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