Delta Electronics LCP-155A4HSRx Series Manuale utente

DELTA ELECTRONICS, INC.

1 Sep., 2006

Rev. 0B

www.deltaww.com

RoHS compliant Small Form Factor Pluggable Transceiver for Fast

Ethernet, ATM, SONET OC-3/SDH STM-1

FEATURES

 Compliant with SFP Transceiver MSA

specification

 Compliant with Intra-office SONET OC-3 /

SDH STM-1 (I-1)

 Compliant with Industry Standard RFT

Electrical Connector and Cage

 Single + 3.3V Power Supply and TTL Logic

Interface

 EEPROM with Serial ID Functionality

 Laser Class 1 Product which comply with the

requirements of IEC 60825-1 and IEC 60825-2

 Duplex LC Connector interface

Description

The LCP-155A4HSRx series is a hot

pluggable 3.3V Small-Form-Factor transceiver

module designed expressly for high-speed

communication applications that require rates of

up to 155Mbit/sec. It is compliant with the ATM,

SONET OC-3/SDH STM-1 standards, as well as

the SFP Multisource Agreement (MSA) except for

TX fault function is not implemented.

The LCP-155A4HSRx 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.

The post-amplifier of the LCP-155A4HSRx

also includes a Loss Of Signal (LOS) circuit that

provides a TTL logic-high output when an

unusable optical signal level is detected.

The LCP-155A4HSRx transceiver is a Class

1 eye safety product. The optical power levels,

under normal operation, are at eye safe level.

Applications

 SONET OC-3/SDH STM-1

 ATM Network

 Fast Ethernet

 Switch to Switch interface

 Switched backplane applications

 File server interface

Performance

 LCP-155A4HSR (H/T) Data Link up to 2km in

62.5/125µm Multi-Mode Fiber.

DELTA ELECTRONICS, INC.

2 Sep., 2006

Rev. 0B

www.deltaww.com

Absolute Maximum Ratings

Parameter Symbol Min. Typ. Max. Unit Note

Storage Temperature Ts -40 85 ºC

Supply Voltage VCC 0 5 V

Recommended Operating Conditions

Parameter Symbol Min. Typ. Max. Unit Note

Case Operating Temperature TC-5 70 ºC

See

Ordering

information

for detail

Supply Voltage VCC 3.135 3.465 V

Electrical Characteristics

(VCC=3.135V to 3.465V)

Parameter Symbol Min. Typ. Max. Unit Note

Total Supply Current ICCT 320 mA

Transmitter

Transmitter Differential Input Voltage VDT 0.5 2.4 V 1

Transmitter Disable Input-High VDISH 2 VCC+0.3 V

Transmitter Disable Input-Low VDISL 0 0.8 V

Receiver

Receiver Differential Output Voltage VDR 0.35 1.3 2 V 2

Receiver LOS Load RRXLOS 4.7 10 k3

LOS Output Voltage-Low VLOSL 0 0.8 V

LOS Output Voltage-High VLOSH 2 VCC+0.3 V

Output Data risetime/falltime tr/tf2.2 ns 4

Notes:

1. Internally AC coupled.

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

Deserializer.

3. Pull up to VCC on host Board

4. These are 20%~80% values

DELTA ELECTRONICS, INC.

3 Sep., 2006

Rev. 0B

www.deltaww.com

Optical Characteristics

(VCC=3.135V to 3.465V, Data Rate=155Mb/sec, PRBS=223-1 NRZ, 62.5/125µm MMF)

Parameter Symbol Min. Typ. Max. Unit Note

Transmitter

Output Optical Power (Avg.) PO-20 -14

dBm

Optical Extinction Ratio ER 9 dB

Center Wavelength λC1310 nm

Spectral Width (RMS) σ

200 nm

Optical Rise /Fall Time tr/tf3 ns 1

Duty Cycle Distortion DCD 0.6 ns

Jitter tJ1.0 ns

Relative Intensity Noise RIN -117 dB/Hz

Output Eye Compliant with ITU-T recommendation G.957

Receiver

Sensitivity (Avg.) PIN -31

dBm 2

Input Optical Wavelength λ1310 nm

LOS-Deasserted (Avg.) PD

-31 dBm

LOS-Asserted (Avg.) PA-48 dBm

LOS-Hysteresis PD-PA0.5 dB

Overload PO-14 dBm

Notes:

1. These are unfiltered 10%~90% values

2. The sensitivity is provided at a BER of 1×10-10 or better with an input signal consisting of 155Mb/s,

223-1 PRBS and ER=9dB.

Mask of the eye diagram for the optical transmit signal

DELTA ELECTRONICS, INC.

4 Sep., 2006

Rev. 0B

www.deltaww.com

SFP Transceiver Electrical Pad Layout

Pin Function Definitions

Pin Num. Name Function Plug Seq. Notes

1 VeeT Transmitter Ground 1

2 TX Fault Non connection 3 Note 1

3 TX Disable Transmitter Disable 3 Note 2

Module disables on high or open

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 Not Connect 3 Function not available

8 LOS Loss of Signal 3 Note 4

9 VeeR Receiver Ground 1 Note 5

10 VeeR Receiver Ground 1 Note 5

11 VeeR Receiver Ground 1 Note 5

12 RD- Inv. Received Data Out 3 Note 6

13 RD+ Received Data Out 3 Note 7

14 VeeR Receiver Ground 1 Note 5

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 5

18 TD+ Transmit Data In 3 Note 8

19 TD- Inv. Transmit Data In 3 Note 8

20 VeeT Transmitter Ground 1 Note 5

Plug Seq.: Pin engagement sequence during hot plugging.

DELTA ELECTRONICS, INC.

5 Sep., 2006

Rev. 0B

www.deltaww.com

Notes:

1) TX Fault is internally connected to TX ground.

2) 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

3) 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 (see Section IV for further details). 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

4) 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 VccT, R+0.3V. When high, this output indicates the received optical power is

below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In

the low state, the output will be pulled to < 0.8V.

5) VeeR and VeeT may be internally connected within the SFP module.

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. The voltage swing on these lines will be between 370 and 2000 mV differential

(185 – 1000 mV single ended) when properly terminated.

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

connector pin. Maximum supply current is 300 mA. Recommended host board power supply filtering is shown

below. Inductors with DC resistance of less than 1 should be used in order to maintain the required voltage at

the SFP input pin with 3.3V supply voltage.

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.

DELTA ELECTRONICS, INC.

6 Sep., 2006

Rev. 0B

www.deltaww.com

Recommend Circuit Schematic

LaserDiode

Photo Diode

1uH

0.1uF10uF

0.1uF

0.01uF

0.1uF10uF

RES1

100 Ohms*

RES1 RES1 RES1

10k Ohms

100 Ohms

VCC

Protocol Vcc

SerDes ICProtocol IC

PLD / PAL

Mod_def 2

Mod_def 1

Mod_def 0

3.3V

DELTA SFP Module

Preamp&

Tx_Di sable

Quantizer

Tx_Fault

TD +

TD -

VeeT

RD +

RD -

Rx_LOS

VeeR

Tx_Di sable

Tx_Fault

Rx_LOS

RES1 = 4.7k to 10k Ohms

VccT

VccR

Laser Driver

* Depands on SerDes IC used

EEPROM

DELTA ELECTRONICS, INC.

7 Sep., 2006

Rev. 0B

www.deltaww.com

Package Outline Drawing for Metal Housing with Bail de-latch

DELTA ELECTRONICS, INC.

8 Sep., 2006

Rev. 0B

www.deltaww.com

SFP timing parameters for SFP management

Parameter Symbol Min. Max. Unit Unit Conditions

TX_DISABLE Assert

time t_off 10 µsec

Time from rising edge of TX_DISABLE to

when the optical output falls below 10% of

nominal

TX_DISABLE

Negate time t_on 1 msec

Time from falling edge of TX_DISABLE to

when the modulated optical output rises

above 90% of nominal

Time to initialize,

including reset of

TX_FAULT

t_init 300 msec From power on or negation of TX_Fault using

TX Disable.

TX Fault Assert

Time

t_fault

100 µsec Time from fault to TX fault on.

TX_DISABLE to

reset t_rest 10 µsec Time TX Disable must be held high to reset

TX_Fault

LOS Assert Time t_loss_on 100 µsec Time from LOS state to Rx LOS assert

LOS Deassert Time t_loss_off 100 µsec Time from non-LOS state to Rx LOS deassert

Serial ID Clock Rate f_serial_clock 100 kHz

DELTA ELECTRONICS, INC.

9 Sep., 2006

Rev. 0B

www.deltaww.com

SFP timing parameters:

Power on initialization of SFP transceiver, TX_DISABLE

negated

Power on initialization of SFP, TX_DISABLE asserted

Initialization during hot plugging of SFP TRANSCEIVER.

Example of initialization during hot plugging, TX_DISABLE

negated.

SFP TX_DISABLE timing during normal operation.

Detection of transmitter safety fault condition Successful recovery from transient safety fault condition

Unsuccessful recovery from safety fault condition Timing of LOS detection

DELTA ELECTRONICS, INC.

10 Sep., 2006

Rev. 0B

www.deltaww.com

LCP-155A4HSRx EEPROM Serial ID Memory Contents (2-Wire Address A0h)

Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII Address Hex ASCII

00 03 25 20 50 53 S 75 SN 100 00 125 00

01 04 26 20 51 52 R 76 SN 101 00 126 00

02 07 27 20 52 20 77 SN 102 00 127 00

03 00 28 20 53 20 78 SN 103 00

04 00 29 20 54 20 79 SN 104 00

05 01 30 20 55 20 80 SN 105 00

06 00 31 20 56 30 81 SN 106 00

07 00 32 20 57 30 82 SN 107 00

08 00 33 20 58 30 83 SN 108 00

09 00 34 20 59 30 84 DC Note 3 109 00

10 00 35 20 60 05 85 DC 110 00

11 03 36 00 61 1E 86 DC 111 00

12 02 37 00 62 00 87 DC 112 00

13 00 38 00 63 CS1 Note 1 88 DC 113 00

14 00 39 00 64 00 89 DC 114 00

15 00 40 4C L 65 1A 90 DC 115 00

16 00 41 43 C 66 05 91 DC 116 00

17 C8 42 50 P 67 05 92 00 117 00

18 00 43 2D - 68 SN Note 2 93 00 118 00

19 00 44 31 1 69 SN 94 00 119 00

20 44 D 45 35 5 70 SN 95 CS2 Note 4 120 00

21 45 E 46 35 5 71 SN 96 00 121 00

22 4C L 47 41 A 72 SN 97 00 122 00

23 54 T 48 34 4 73 SN 98 00 123 00

24 41 A 49 48 H 74 SN 99 00 124 00

Notes:

1) Byte 63(CS1): Check sum of bytes 0-62.

2) Byte 68-83 (SN): Serial number.

3) Byte 84-91 (DC): Date code.

4) Byte 95 (CS2): Check sum of bytes 64-94.

5) Bytes 128-255 had been set hex. 00.

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