Specification

10Gb/s 850nm Multi-mode SFP+ Transceiver

PRODUCT FEATURES

  • 10Gb/s serial optical interface compliant to 802.3ae 10GBASE-SR
  • 850nm VCSEL transmitter, PIN photo-detector
  • Duplex LC connector
  • Metal enclosure, for lower EMI
  • Electrical interface compliant to SFF-8431

specifications for 10 Gigabit “SFP+”

  • 2-wire interface for management

specifications compliant with SFF 8472

  • Single 3.3V power supply
  • Operating temperature range:-5°C to 70°C

APPLICATIONS

10GBASE-SR/SW 10G Ethernet

STANDARD

  • Compliant with SFF-8472 SFP+ MSA.
  • Compliant to SFP+ SFF-8431 and SFF-8432.
  • Compliant to 802.3ae 10GBASE-SR.
  • RoHS Compliant.

PRODUCT SELECTION

DSPM85192LMS

Absolute Maximum Ratings

Parameter

Symbol

Min

Typ

Max

Unit

Ref.

Maximum Supply Voltage

Vcc

-0.5

 

4.7

V

 

Storage Temperature

TS

-40

 

85

°C

 

Case Operating Temperature

Tcase

-5

 

70

°C

 

Electrical Characteristics (Tcase = -5 to 70℃, VCC = 3.14 to 3.46Volts)

Parameter

Symbol

Min

Typ

Max

Unit

Ref.

Supply Voltage

Vcc

3.14

3.3

3.46

V

 

Supply Current

Icc

 

 

250

mA

 

Transmitter

 

 

 

 

 

 

Input differential impedance

Rin

 

100

 

Ω

1

Single ended data input swing

Vin,pp

180

 

700

mV

 

Transmit Disable Voltage

VD

Vcc–1.3

 

Vcc

V

 

Transmit Enable Voltage

VEN

Vee

 

Vee+ 0.8

V

2

Transmit Disable Assert Time

 

 

 

10

us

 

Receiver

 

 

 

 

 

 

Differential data output swing

Vout,pp

300

 

850

mV

3

Data output rise time

tr

 

 

38

ps

4

Data output fall time

tf

 

 

38

ps

4

LOS Fault

VLOS fault

Vcc–1.3

 

VccHOST

V

5

LOS Normal

VLOS norm

Vee

 

Vee+0.8

V

5

Power Supply Rejection

PSR

100

 

 

mVpp

6

Notes:

  1. Connected directly to TX data input pins. AC coupled thereafter.
  2. Or open circuit.
  3. Into 100 ohms differential termination.
  4. 20 – 80 %
  5. Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
  6. Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through the recommended power supply filtering network.

Optical Characteristics (Tcase = -5 to70, VCC = 3.14 to 3.46 Volts)

Parameter

Symbol

Min

Typ

Max

Unit

Ref.

Transmitter

 

 

 

 

 

 

Output Opt. Pwr

POUT

-6

 

-1

dBm

1

Optical Wavelength

λ

840

850

860

nm

 

Wavelength Temperature Dependance

   

0.08

0.125

nm/°C

 

Spectral Width (RMS)

σ

   

0.45

nm

 

Optical Extinction Ratio

ER

3.0

   

dB

 

Transmitter and Dispersion Peanlty

TDP

   

3.9

dB

 

RIN

RIN

   

-128

dB/Hz

 

Transmitter Jitter (peak to peak)

 

IEEE 802.3.ae requirements

 

Receiver

           

Average Rx Sensitivity @ 10.325G

RSENS3

   

-10

dBm

2

Maximum Input Power

PMAX

0.5

   

dBm

 

Optical Center Wavelength

λC

840

850

860

nm

 

LOS De -Assert

LOSD

   

-14

dBm

 

LOS Assert

LOSA

-30

   

dBm

 

LOS Hysteresis

 

0.5

   

dB

 

Notes:

  1. Class 1 Laser Safety per FDA/CDRH and IEC-825-1 regulations.
  2. With worst-case extinction ratio. Measured with a PRBS 231-1 test pattern, @10.325Gb/s, BER<10-12 .

Pin Assignment

Pin out of Connector Block on Host Board

Pin Descriptions

Pin

Symbol

Name/Description

Ref.

1

VEET

Transmitter Ground (Common with Receiver Ground)

1

2

TFAULT

Transmitter Fault.

2

3

TDIS

Transmitter Disable. Laser output disabled on high or open.

3

4

SDA

2-wire Serial Interface Data Line

4

5

SCL

2-wire Serial Interface Clock Line

4

6

MOD_ABS

Module Absent. Grounded within the module

4

7

RS0

RS0 for Rate Select: Open or Low = Module supports 1.25 Gb/s

High = Module supports 9.95 Gb/s to 10.3125 Gb/s

5

8

LOS

Loss of Signal indication. Logic 0 indicates normal operation.

6

9

RS1

No connection required

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. TFAULT is an open collector/drain output, which should be pulled up with a 4.7kΩ– 10 kΩ resistor on the host board if intended for use. Pull up voltage should be between 2.0V to Vcc + 0.3V. A high output indicates a transmitter fault caused by either the TX bias current or the TX output power exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the output is pulled to <0.8V.
  3. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
  4. Should be pulled up with 4.7kΩ- 10kΩ on host board to a voltage between 2.0V and 3.6V. MOD_ABS pulls line low to indicate module is plugged in.
  5. Transceiver data rate selected through the 2-wire bus in accordance with SFF-8472 Rev10.5. Soft RS0 is set at Bit3, Byte 110, Address A2h. Soft RS0 default state on power up is ‘0’ LOW, and the state is reset following a power cycle. Writing ‘1’ HIGH selects max data rate operation. Transceiver data rate is the logic OR of the input state of the RS0 pin and soft RS0 bit. Thus, if either the RS0 pin OR the soft RS0 bit is HIGH then the selected data rate will be 9.95 and 10.3 Gb/s.
  6. Loss Of Signal is LVTTL. It should be pulled up with 4.7kΩ – 10kΩ on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.

 

Digital Diagnostic Functions

The SFP+ transceivers support the 2-wire serial communication protocol as defined in the SFP MSA1.

 

The standard SFP serial ID provides access to identification information that describes the transceiver’s capabilities, standard interfaces, manufacturer, and other information.

 

Additionally, SFP+ transceivers provide a unique enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular operating parameters are outside of a factory set normal range.

 

The SFP MSA defines a 256-byte memory map in EEPROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X (A0h). The digital diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h), so the originally defined serial ID memory map remains unchanged.

The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through a 2-wire serial interface. When the serial protocol is activated, the serial clock signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into the SFP transceiver into those segments of the E2PROM that are not write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def 2) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially.

Digital diagnostics for the YAM-85192-5LS are internally calibrated by default.

Host - Transceiver Interface Block Diagram

Outline Dimensions

Comply to SFF-8432 rev5.0, the improved Pluggable form factor specification.

Regulatory Compliance

Feature

Reference

Performance

Electrostatic Discharge (ESD) to the Electrical pin(HBM)

MIL-STD-883E Method 3015.7 EIA-JESD22-A114

Class 1

(ESD) to the Simplex Receptacle

IEC/EN 61000-4-2

Compatible with standards

Electromagnetic Interference (EMI)

FCC Part 15 Class B EN 55022 Class B (CISPR 22A)

Compatible with standards

Laser Eye Safety

FDA 21CFR 1040.10, 1040.11 IEC/EN 60825-1,2

Class 1 laser product

Component Recognition

IEC/EN 60950 ,UL

Compatible with standards

ROHS

2002/95/EC

Compatible with standards