Delta Electronics LCP-8500A4EDR User Manual

Preliminary

LCP-8500A4EDR

RoHS Compliant 8.5Gb/s Short Wavelength SFP+ Transceiver

FEATURES

 Compliant with SFP+ MSA, SFF-8431

specification and Fiber Channel FC-PI-4

 Compliant with SFF-8472 MSA  850nm VCSEL laser  Built-in digital diagnostic monitoring function  Backward compatible to 2G/4G Fiber Channel  Duplex LC connector  Power consumption ＜1W

 Laser Class 1 Product which comply with the

requirements of IEC 60825-1 and IEC 60825-2

Description

The LCP-8500A4EDR is hot pluggable 3.3V Small-Form-Factor transceiver modules designed expressly for high-speed communication applications that require rates of up to 8.5Gb/s.

It is compliant with SFP+ MSA, SFF-8431 specification and Fiber Channel FC-PI-4, as well as MSA SFF-8472.

The LCP-8500A4EDR transceivers provide with the LC receptacle that is compatible with the industry standard LCTM connector. The transceiver is also compatible with industry standard RFT connector and cage.

The post-amplifier of the LCP-8500A4EDR 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-8500A4EDR transceiver is a Class 1 eye safety product. The optical power levels, under normal operation, are at eye safe level.

Applications

High-speed storage area networks



Computer cluster cross-connect



Custom high-speed data pipes



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Preliminary

Absolute Maximum Ratings

Parameter Symbol Min. Typ. Max. Unit Note

Storage Temperature T Supply Voltage V

-40 85 ºC 0 4 V

Relative Humidity RH 5 95 %

Recommended Operating Conditions

Parameter Symbol Min. Typ. Max. Unit Note

Case Operating Temperature T Supply Voltage V

-5 70 ºC

3.135 3.465 V

Data Rate 8.5 9 Gbps

Electrical Characteristics

(VCC=3.135V to 3.465V)

Parameter Symbol Min. Typ. Max. Unit Note

Total Supply Current I

Transmitter

Differential Input Voltage Vin,pp 120 1000 mVppd 1 Data Input Rise/Fall Time 15 40 Ps 2 Transmitter Disable Input-High V Transmitter Disable Input-Low V Transmitter Fault Output-High V Transmitter Fault Output-Low V

DISH

DISL

TXFH

TXFL

Receiver

Differential Output Voltage V

out,pp

Data Output Rise/Fall Time 45 Ps 1 LOS Output Voltage-Low V LOS Output Voltage-High V

RS0, RS1

Notes:

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

LOSH

LOSL

180 300 MA

2 VCC+0.3 V 0 0.8 V 2 VCC+0.3 V 0 0.8 V

300 1000 mVppd 3

2 VCC+0.3 V 0 0.8 V

-0.3 0.8 V 4

2.0 Vcc+0.3 V

LCP-8500A4EDR

2. These are 20%~80% values.

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

4. Shall be pulled low to

VeeT with a ＞30k ohms resistor in the module.

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Preliminary

Optical Characteristics

(VCC=3.135V to 3.465V, Data Rate=8.5Gb/sec, PRBS=27-1 NRZ, 50/125µm MMF)

Parameter Symbol Min. Typ. Max. Unit Note

Transmitter

Output Optical Power (Avg.) P Optical Modulation Amplitude OMA Center Wavelength Spectral Width (RMS)

Optical Rise/Fall Time (20% - 80%) tr/ t RIN12OMA -128 dB/Hz 3

Output Eye

Complies with the ANSI FC-PI-4 Rev. 6.01 specification, and is class 1 laser eye safety

Receiver

Sensitivity in OMA @8.5Gbps @4.25Gbps

@2.125Gbps Input Optical Wavelength λ 840 850 860 nm Average Received Power, max Rmax 0 dBm LOS-De-asserted (Avg.) P LOS-Asserted (Avg.) P LOS-Hysteresis PD -P Optical Return Loss ORL 12 dB

-8.2 -1.8 dBm

302

840 850 860 nm

µW

0.65 nm

50/50 ps 2

76 61

µW

-14 dBm

-30 dBm

0.5 dB

LCP-8500A4EDR

Link Length

Data Rate/Standard Fiber Type

µm MMF

62.5/125

µm MMF

50/125

8.5Gbps

Notes:

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

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

3. Transmitter Dispersion Penalty is measured using the methods specified in the IEEE standard 802.3-2005 Clause 52 except that the transversal filter differential delay is 33 ps.

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

5. Distance, shown in the “Link Length” table, are calculated for worst case fiber and transceiver characteristics based on the optical and electrical specifications shown in this document using techniques utilized in IEEE 802.3. In the nominal case, longer distances are achievable.

µm MMF

50/125

µm MMF

50/125

µm MMF

50/125

-12

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

Modal Bandwidth

@850nm (MHz*km)

200 0.5 to 21 5 500 0.5 to 50 5

900 0.5 to 90 5 1500 0.5 to 120 5 2000 0.5 to 150 5

Distance Range(m)

Notes

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SFP+ Transceiver Electrical Pad Layout

Preliminary

LCP-8500A4EDR

Module Electrical Pin Definition

DELTA ELECTRONICS, INC.

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Preliminary

Pin Logic Symbol Name/Description Note

1 VeeT Module Transmitter Ground 1

2 LVTTL-O TX_Fault Module Transmitter Fault 2

3 LVTTL-I TX_Disable Transmitter Disable; Turns off transmitter laser output 3

4 LVTTL-I/O SDA 2- write Serial Interface Data Line

5 LVTTL-I/O SCL 2- write Serial Interface Clock

6 MOD_ABS Module Absent, connected to VeeT or VeeR in the module 4

Rate Select 0, optionally controls SFP+ module receiver.

7 LVTTL-I RS0

8 LVTTL-O RX_LOS Receiver Loss of Signal Indication 2

9 LVTTL-I RS1 Not Implement

10 VeeR Module Receiver Ground 1

11 VeeR Module Receiver Ground 1

12 CML-O RD- Receiver Inverted Data Output

13 CML-O RD+ Receiver Non-Inverter Data Output

14 VeeR Module Receiver Ground 1

15 VccR Module Receiver 3.3V Supply

16 VccT Module Transmitter 3.3V Supply

17 VeeT Module Transmitter Ground 1

18 CML-I TD+ Transmitter Non-Inverted Data Input

19 CML-I TD- Transmitter Inverted Data Input

20 VeeT Module Transmitter Ground 1

Notes:

1. The module signal ground pins, VeeR and VeeT, shall be isolated from the module case.

2. This pin is an open collector/drain output pin and shall be pulled up with 4.7k-10k ohms to Host_Vcc

on the host board. Pull ups can be connected to multiple power supplies, however the host board

design shall ensure that no module pin has voltage exceeding module VccT/R + 0.5V.

3. This pin is an open collector/drain input pin and shall be pulled up with 4.7k-10k ohms to VccT in the

Module.

4. This pin shall be pulled up with 4.7k-10k ohms to Host_Vcc on the host board.

When High input data rate>4.25GBd and when LOW input

data rate 4.25GBd.≦

LCP-8500A4EDR

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