Delta Electronics LCP-4250A4CDR User Manual

RoHS Compliant 4.25Gb/s Short Wavelength Tri-Rate SFP Transceiver for Fiber Channel

FEATURES

 Compliant with SFP transceiver SFF-8472

MSA specification and Fiber Channel FC-PI-2

 850nm VCSEL laser  Built-in digital diagnostic monitoring function  Compliant with 4.25/2.125/1.0625 Gb/s Fiber

Channel (400/200/100-M5/M5E/M6-SN-I)

 Compliant with Industry Standard RFT

Electrical Connector and Cage

 Duplex LC connector  Laser Class 1 Product which comply with the

requirements of IEC 60825-1 and IEC 60825-2

Description

The LCP-4250A4CDR series are hot pluggable

3.3V Small-Form-Factor transceiver modules designed expressly for high-speed communication applications that require rates of up to 4.25Gb/s. It is compliant with the Fiber Channel standards FC-PI-2, as well as MSA SFF-8472.

The LCP-4250A4CDR transceivers provide with the LC receptacle that is compatible with the industry standard LC transceiver is also compatible with industry standard RFT connector and cage.

The post-amplifier of the LCP-4250A4CDR also includes a LOS (Loss Of Signal) circuit that provides a TTL logic-high output when an unusable optical signal level is detected.

The LCP-4250A4CDR transceiver is a Class 1 eye safety product. The optical power levels, under normal operation, are at eye safe level.

connector. The

Applications



Tri-Rate 1.063/2.125/4.25 Gb/s Fiber Channel

Up to 400m link over OM3 MMF for 3.072Gbps



CPRI application

Transmission Distances

Data Rate

4.25Gb/s 380m 150m 70m

2.125Gb/s 500m 300m 150m

1.0625Gb/s 860m 550m 300m

OM3 MMF OM2 MMF OM1 MMF

DELTA ELECTRONICS, INC.

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Absolute Maximum Ratings

Parameter Symbol Min. Typ. Max. Unit Note Storage Temperature T Supply Voltage V

-40 85 ºC 0 5 V

Recommended Operating Conditions

Parameter Symbol Min. Typ. Max. Unit Note Case Operating Temperature T Supply Voltage V

Electrical Characteristics

(VCC=3.135V to 3.465V)

Parameter Symbol Min. Typ. Max. Unit Note Total Supply Current I

Transmitter

Transmitter Differential Input Voltage Vin,pp 0.5 2.4 V 2 Transmitter Disable Input-High V Transmitter Disable Input-Low V Transmitter Fault Pull up Resistor R Transmitter Fault Output-High V Transmitter Fault Output-Low V

Receiver

Receiver Differential Output Voltage V Receiver LOS Load R LOS Output Voltage-Low V LOS Output Voltage-High V Output Data Rise/Fall Time tr/ t

Notes:

1. See Ordering information for detail

DISH

DISL

TX_FAULT

TXFH

TXFL

out,pp

RXLOS

LOSH

LOSL

-5 70 ºC 1

3.135 3.465 V

180 300 mA

2 VCC+0.3 V 0 0.8 V

4.7 10 k 3

2 VCC+0.3 V 0 0.8 V

0.3 1 V 4

4.7 10 k 3

2 VCC+0.3 V 0 0.8 V

120 psec 5

2. Internally AC coupled and terminated to 100 Ohm differential load.

3. Pull up to V

4. Internally AC coupled, but requires a 100 Ohm differential termination at or internal to Serializer/ Deserializer.

5. Unfiltered, 20 – 80%.

on host Board.

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Optical Characteristics

(VCC=3.135V to 3.465V, Data Rate=4.25Gb/sec, PRBS=27-1 NRZ, 50/125µm MMF)

Parameter Symbol Min. Typ. Max. Unit Note

Transmitter

Output Optical Power (Avg.) P

Optical Modulation Amplitude @ 4.25 Gb/s @ 2.125 Gb/s

OMA

@ 1.0625 Gb/s Center Wavelength Spectral Width (RMS)

Optical Rise/Fall Time (20% - 80%) tr/ t Relative Intensity Noise RIN -118 dB/Hz

Output Eye

Complies with the ANSI FC-PI Rev. 13 specification, and is class 1 laser eye safety

Receiver

Average Receiver Power P

x (MAX)

Sensitivity in OMA @ 4.25 Gbit/s @ 2.125 Gb/s

@ 1.062 Gb/s Input Optical Wavelength  830 870 nm LOS-De-asserted (Avg.) P LOS-Asserted (Avg.) P

LOS-Hysteresis PD -P Optical Return Loss ORL 12 dB

Notes:

1. Into multimode fiber, 62.5µm or 50µm diameter.

2. Equivalent extinction ratio specification for Fiber Channel. Allows smaller ER at higher average power.

3. Measured at nominal data rate. These are unfiltered 20%~80% values.

4. The sensitivity is tested at a BER of 1×10

-12

or better with an input signal consisting of 27-1 NRZ PRBS.

-9 -3 dBm 1

247 196

µW

156 830 860 nm

0.85 nm

90/90 psec 3

-3 dBm

61 49

uW 4

-19 dBm

-30 dBm

0.5 dB

Mask of the eye diagram for the optical transmit signal

DELTA ELECTRONICS, INC.

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SFP Transceiver Electrical Pad Layout

Pin Function Definitions

Pin Num. Name Function Plug Seq. Notes

1 VeeT Transmitter Ground 1 2 TX Fault Transmitter Fault Indication 3 Note 1

3 TX Disable Transmitter Disable 3

4 MOD-DEF2 Module Definition 2 3 Note 3, 2 wire serial ID interface 5 MOD-DEF1 Module Definition 1 3 Note 3, 2 wire serial ID interface 6 MOD-DEF0 Module Definition 0 3 Note 3, Grounded in Module

7 Rate Select 1&2 or 2&4 Gbit/s 3

8 LOS Loss of Signal 3 Note 5

9 VeeR Receiver Ground 1 Note 6 10 VeeR Receiver Ground 1 Note 6 11 VeeR Receiver Ground 1 Note 6 12 RD- Inv. Received Data Out 3 Note 7 13 RD+ Received Data Out 3 Note 8 14 VeeR Receiver Ground 1 Note 6 15 VccR Receiver Power 2 3.3 ± 5%, Note 7 16 VccT Transmitter Power 2 3.3 ± 5%, Note 7 17 VeeT Transmitter Ground 1 Note 6 18 TD+ Transmit Data In 3 Note 9 19 TD- Inv. Transmit Data In 3 Note 9 20 VeeT Transmitter Ground 1 Note 6

Plug Seq.: Pin engagement sequence during hot plugging.

Note 2 Module disables on high or open

Note 4, Open or Low = 1.063Gb/s, High = 2.125Gb/s or 4.25Gb/s

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