Specification

 

1.25 Gb/s RoHS Compliant Pluggable Multi-mode SFP Transceiver

PH-S8512-1LCD

1.25G 850nm 550m

 

Product Features

  • Hot-pluggable SFP footprint
  • 850nm VCSEL laser transmitter
  • RoHS compliant and Lead Free
  • Up to 550m on 50/125µm MMF,

500m on 62.5/125µm MMF

  • Metal enclosure for lower EMI
  • Single +3.3V power supply
  • Low power dissipation <600mW
  • Commercial operating temperature range:-10°C to +55°C

Applications

  • 1.25Gb/s 1000Base-SX Ethernet
  • 1.063Gb/s Fiber Channel

 

 

General

Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). They simultaneously comply with 1.25Gb/s 1000Base-SX Ethernet and1.063Gb/s Fiber Channel. They are RoHS compliant and lead-free.

I. Pin Descriptions

Pin

Symbol

Name/Description

Ref.

1

VeeT

Transmitter Ground (Common with Receiver Ground)

1

2

TX Fault

Transmitter Fault.

 

3

TX Disable

Transmitter Disable. Laser output disabled on high or open.

2

4

MOD_DEF(2)

Module Definition 2. Data line for Serial ID.

3

5

MOD_DEF(1)

Module Definition 1. Clock line for Serial ID.

3

6

MOD_DEF(0)

Module Definition 0. Grounded within the module.

3

7

Rate Select

No connection required

 

8

LOS

Loss of Signal indication. Logic 0 indicates normal operation.

4

9

VeeR

Receiver Ground (Common with Transmitter Ground)

1

10

VeeR

Receiver Ground (Common with Transmitter Ground)

1

11

VeeR

Receiver Ground (Common with Transmitter Ground)

1

12

RD-

Receiver Inverted DATA out. AC Coupled

 

13

RD+

Receiver Non-inverted DATA out. AC Coupled

 

14

VeeR

Receiver Ground (Common with Transmitter Ground)

1

15

VccR

Receiver Power Supply

 

16

VccT

Transmitter Power Supply

 

17

VeeT

Transmitter Ground (Common with Receiver Ground)

1

18

TD+

Transmitter Non-Inverted DATA in. AC Coupled.

 

19

TD-

Transmitter Inverted DATA in. AC Coupled.

 

20

VeeT

Transmitter Ground (Common with Receiver Ground)

1

Notes:

  1. Circuit ground is internally isolated from chassis ground.
  2. Laser output disabled on TX Disable >2.0V or open, enabled on TX Disable<0.8V.
  3. Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V.

MOD_DEF(0) pulls line low to indicate module is plugged in.

  1. LOS is LVTTL output. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.

Pinout of Connector Block on Host Board

II. Absolute Maximum Ratings

Parameter

Symbol

Min

Typ

Max

Unit

Ref.

Maximum Supply Voltage

Vcc

-0.5

 

+4.0

V

 

Storage Temperature

TS

-40

 

+100

°C

 

Case Operating Temperature

TOP

0

 

+70

°C

 

Relative Humidity

RH

0

 

85

%

1

III. Electrical Characteristics (TOP=25°C, Vcc=3.3Volts)

Parameter

Symbol

Min

Typ

Max

Unit

Ref.

Supply Voltage

Vcc

3.00

 

3.60

V

 

Supply Current

Icc

 

180

300

mA

 

Transmitter

           

Input differential impedance

Rin

 

100

 

Ω

2

Single ended data input swing

Vin, pp

250

 

1200

mV

 

Transmit Disable Voltage

VD

Vcc – 1.3

 

Vcc

V

 

Transmit Enable Voltage

VEN

Vee

 

Vee+ 0.8

V

 

Transmit Disable Assert Time

     

10

us

 

Receiver

           

Single ended data output swing

Vout, pp

250

 

800

mV

3

Data output rise time

tr

   

175

ps

4

Data output fall time

tf

   

175

ps

4

LOS Fault

VLOS fault

Vcc – 0.5

 

VccHOST

V

5

LOS Normal

VLOS norm

Vee

 

Vee+0.5

V

5

Deterministic Jitter Contribution

RXΔDJ

   

80

ps

6

Total Jitter Contribution

RXΔTJ

   

122.4

ps

 

Notes:

  1. Non condensing.
  2. AC coupled.
  3. Into 100 ohm differential termination.
  4. 20 – 80 %
  5. LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
  6. Measured with DJ-free data input signal. In actual application, output DJ will be the sum of input DJ and ΔDJ.

 

IV. Optical Characteristics (TOP=25°C, Vcc=3.3 Volts)

Parameter

Symbol

Min

Typ

Max

Unit

Ref.

Transmitter

           

Output Opt. Power

PO

-9

-

-3

dBm

1

Optical Wavelength

λ

830

850

860

nm

 

Spectral Width

σ

-

-

0.85

nm

 

Side Mode Suppression Ratio

SMSR

30

-

-

dB

 

Optical Rise/Fall Time

tr/tf

-

-

175

ps

2

Deterministic Jitter Contribution

TXΔDJ

-

-

0.07

UI

3

Total Jitter Contribution

TXΔTJ

-

-

0.007

UI

 

Optical Extinction Ratio

ER

9

10

-

dB

 

Receiver

           

Average Rx Sensitivity

RSENS

-

-

-20

dBm

4

Maximum Received Power

RXMAX

-2

-

-

dBm

 

Optical Center Wavelength

λC

770

850

860

nm

 

LOS De-Assert

LOSD

-

-

-24

dBm

 

LOS Assert

LOSA

-35

-

-

dBm

 

LOS Hysteresis

 

0.5

-

-

dB

 

 

Notes:

  1. Class 1 Laser Safety.
  2. Unfiltered, 20-80%.
  3. Measured with DJ-free data input signal .In actual application, output DJ will be the sum of input DJ and ΔDJ.
  4. Measured with PRBS 27-1 at 10-12 BER .

 

V. General Specifications

Parameter

Symbol

Min

Typ

Max

Units

Ref.

Data Rate

BR

-

-

1250

Mb/sec

1

Bit Error Rate

BER

-

-

10-12

 

2

Max. Supported Link Length on

50/125μm MMF @ 1.25G

LMAX

-

-

550

m

3

Notes:

  1. 1.25G and 1.063G compliant.
  2. Tested with a PRBS 27-1 data pattern.
  3. Dispersion limited per FC-PI-2 Rev. 10

VI. Environmental Specifications

Commercial Temperature SFP transceivers have an operating temperature range from 0°C to +70°C case temperature.

 

Parameter

Symbol

Min

Typ

Max

Units

Case Operating Temperature

Top

-10

 

+55

°C

Storage Temperature

Tsto

-40

 

+100

°C

VII. Mechanical Specifications

Small Form Factor Pluggable (SFP) transceivers are compatible with the dimensions defined by the SFP Multi-Sourcing Agreement (MSA).

.

AP-S85123-3CDLM

IX. PCB Layout and Bezel Recommendations