Delta Electronics LCP-155 CWDM User Manual

RoHS Compliant Multi-Rate CWDM SFP Transceiver for Fast
Ethernet, ATM and SONET/SDH STM-1/OC-3 with DDM Function

FEATURES

Description

The LCP-155 CWDM series are designed for

coarse wavelength division multiplexing

applications (CWDM) and hot pluggable SFP

transceiver modules that data rates up to 155 Mb/s.

The LCP-155 CWDM series are support Fast

Ethernet, ATM and OC-3/SDH STM-1 standards.

The selectiveness of center wavelength has 1470,

1490, 1510, 1530, 1550, 1570, 1590, and 1610 nm.

The LCP-155 CWDM series are designed to

be compliant with SFF-8472 SFP Multi-source

Agreement (MSA) with digital diagnostic

monitoring functions: Temperature, V

optical power, TX laser bias current, and RX

received optical power.

The post-amplifier of the LCP-155 CWDM

series also includes a Loss of Signal (LOS) circuit

that provides a TTL logic-high output when the

received optical level is below a preset LOS

Assert threshold.

, TX

CC

 Compliant with SFP Transceiver SFF-8472

MSA specification with internal calibration

 Multirate operation from 100Mb/s to 155Mb/s
 Single + 3.3V Power Supply and TTL Logic

Interface

 8 Wavelength (λ) Uncooled CWDM DFB laser

LD transmitter and PIN receiver

 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

Applications

 OC-3/SDH STM-1

 Fast Ethernet and ATM

 Switch to Switch interface

 Switched backplane applications

 File server interface

Performance

 LCP-155D4RxxR: 1470nm to 1610nm CWDM

DFB laser, 29dB link budget

 LCP-155D4VxxR: 1470nm to 1610nm CWDM

DFB laser, 33dB link budget

 LCP-155D4UxxR: 1470nm to 1610nm CWDM

DFB laser, 36dB link budget

DELTA ELECTRONICS, INC.

1 Jun., 2007

Rev. 0F

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 1
Supply Voltage VCC 3.135 3.465 V
Data Rate 155 Mbps

Note 1: See order information

Electrical Characteristics

(VCC=3.3V ± 5%)

Parameter Symbol Min. Typ. Max. Unit Note

Total Supply Current
LCP-155D4xxxR
LCP-155D4xxxRH

I

CCT

LCP-155D4xxxRT

Transmitter

Transmitter Differential Input Voltage VDT 0.5 2.4 V 1
Transmitter Disable Input-High V
Transmitter Disable Input-Low V
Transmitter Fault Pull up Resistor R

TX_FAULT

Transmitter Fault Output-High V
Transmitter Fault Output-Low V

DISH

DISL

TXFH

TXFL

2 V

Vee 0.8 V

4.7 10 k 2

2 V

Vee 0.8 V

Receiver

Receiver Differential Output Voltage VDR 0.35 2 V 3
Receiver LOS Load R
LOS Output Voltage-High V
LOS Output Voltage-Low V

RXLOS

LOSH

LOSL

Output Data Rise/Fall Time tr / t

f

4.7 10 k 2

2 V

Vee 0.8 V

2.5 nsec 4

Notes:

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

300
380
380

CC

CC

CC

mA

V

V

V

2. Pull up to V

on host Board.

CC

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

Deserializer.

4. These are 20%~80% values.

2 Jun., 2007

Rev. 0F

DELTA ELECTRONICS, INC.

www.deltaww.com

Optical Characteristics

Transmitter

=3.3V ± 5%, Data Rate=155Mb/sec, PRBS=2

(V

CC

Parameter Symbol Min. Typ. Max. Unit Note

Output Optical Power (Avg.)
LCP-155D4RxxR
LCP-155D4VxxR
LCP-155D4UxxR

Optical Extinction Ratio ER 9 dB
Center Wavelength

LCP-155D4x47R
LCP-155D4x49R
LCP-155D4x51R
LCP-155D4x53R
LCP-155D4x55R
LCP-155D4x57R
LCP-155D4x59R
LCP-155D4x61R

Spectral Width (-20dB)
Side-mode Suppression Ratio SMSR 30
Optical Rise/ Fall Time
Relative Intensity Noise
Output Eye Compliant with ITU-T G.957

Receiver

=3.3V ± 5%, Data Rate=155Mb/sec, PRBS=2

(V

CC

Parameter Symbol Min. Typ. Max. Unit Note

Sensitivity (Avg.)
LCP-155D4RxxR
LCP-155D4VxxR
LCP-155D4UxxR

Input Optical Wavelength
LOS-Deasserted (Avg.)

LCP-155D4RxxR
LCP-155D4VxxR
LCP-155D4UxxR

LOS-Asserted (Avg.) P
LOS-Hysteresis PA-P
Overload P
Reflectance r -12 dB

Notes:

1. These are unfiltered 20%~80% values.

2. The sensitivity is provided at a BER of 1×10

23

2

-1 PRBS and ER=9dB.

23

-1 NRZ)

P

λ

σ

t

r/tf

-5

-3
0

1464.5

1484.5

1504.5

1524.5

C

1544.5

1564.5

1584.5

1604.5

1470
1490
1510
1530
1550
1570
1590
1610

1 nm

2 nsec 1

0
+2
+5

1477.5

1497.5

1517.5

1537.5

1557.5

1577.5

1597.5

1617.5

dBm

nm

dB

RIN -120 dB/Hz

23

-1 NRZ)

P

λ

P

S

1270 1620 nm

A

-34

-36

-36

-34

-36

dBm 2

dBm

-36

D

D

0

-45 dBm

0.5 dB

-3 dBm

-10

or better with an input signal consisting of 155Mb/s,

DELTA ELECTRONICS, INC.

3 Jun., 2007

Rev. 0F

www.deltaww.com

Mask of the eye diagram for the optical transmit signal

Recommend Circuit Schematic

Protocol Vcc

Tx_Disable

Tx_Fault

Rx_LOS

VCC

SerDes ICProtocol IC

PLD / PAL

1uH

1uH

RES1

100 Ohms*

RES1

3.3V

3.3V

RES1

10uF

RES1

0.1uF

RES1

RES1 = 4.7k to 10k Ohms

* Depands on SerDes IC used

10uF

0.1uF

Tx_Disable

Tx_Fault

TD +

TD -

VeeT

0.1uF

RD +

RD -

Rx_LOS

VeeR

Mod_def 2

Mod_def 1

Mod_def 0

DELTA SFP Module

VccT

10k Ohms

0.01uF

100 Ohms

0.01uF

VccR

0.01uF

0.01uF

Laser Driver

Preamp &
Quantizer

EEPROM

Laser Diode

Photo Diode

DELTA ELECTRONICS, INC.

4 Jun., 2007

Rev. 0F

www.deltaww.com

SFP Transceiver Electrical Pad Layout

Pin Function Definitions

Pin

Num.

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 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.

Name Function

5 Jun., 2007

Plug
Seq.

Notes

Note 2,Module disables on high or
open

www.deltaww.com

Rev. 0F

Notes:

1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10K resistor on

the host board. Pull up voltage between 2.0V and VccT, R+0.3V. When high, output indicates a laser

fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.

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 300mA. Recommended host board power supply

filtering is shown below. Inductors with DC resistance of less than 1 ohm should be used in order to

maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended

supply-filtering network is used, hot plugging of the SFP transceiver module will result in an inrush

current of no more than 30mA greater than the steady state value. VccR and VccT may be internally

connected within the SFP transceiver module.

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 Jun., 2007

Rev. 0F

www.deltaww.com

SFP timing parameters for SFP management

Parameter Symbol Min. Max. Unit Note

TX_DISABLE Assert time t_off 10 µsec 1
TX_DISABLE Negate time t_on 1 msec 2
Time to initialize, including
reset of TX_FAULT
TX Fault Assert Time t_fault 100 µsec 4
TX_DISABLE to reset t_rest 10 µsec 5
LOS Assert Time t_loss_on 100 µsec 6
LOS Deassert Time t_loss_off 100 µsec 7
Serial ID Clock Rate f_serial_clock 100 kHz

Notes:

1) Time from rising edge of TX_DISABLE to when the optical output falls below 10% of nominal.

Time from falling edge of TX_DISABLE to when the modulated optical output rises above 90% of

2)

nominal.

From power on or negation of TX_Fault using TX Disable.

3)

Time from fault to TX fault on.

4)

Time TX Disable must be held high to reset TX_Fault

5)

Time from LOS state to Rx LOS assert

6)

Time from non-LOS state to Rx LOS deassert

7)

t_init 300 msec 3

DELTA ELECTRONICS, INC.

7 Jun., 2007

Rev. 0F

www.deltaww.com

Package Outline Drawing

DELTA ELECTRONICS, INC.

8 Jun., 2007

Rev. 0F

www.deltaww.com

Enhanced Digital Diagnostic Interface

The memory map in the following describes an extension to the memory map defined in SFP MSA.

The enhanced interface uses the two wire serial bus address 1010001X(A2h) to provide diagnostic

information about the module’s present operating conditions.

2 wire address 1010000 X (A0h) 2 wire address 1010001 X (A2h)

0 0

Alarm and Warning Thresholds

(56 bytes)

Serial ID Defined by SFP MSA

95
96 96

127

128 128

(96 bytes)

Vender Specific

(32 bytes)

Reserved in SFP MSA

(128 bytes)

55
56

Cal Constants

(40 bytes)

95

Real Time Diagnostic Interface

(24 bytes)

119
120

Vender Specific

127

User Writable EEPROM

(120 bytes)

247

255

Digital Diagnostic Memory Map Specific Data Field Descriptions

DELTA ELECTRONICS, INC.

248

255

9 Jun., 2007

Vender Specific

(8 bytes)

Rev. 0F

www.deltaww.com

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

Address Hex ASCII Address Hex ASCII Address Hex ASCII

00 03 43 PN 86 DC
01 04 44 PN 87 DC
02 07 45 PN 88 DC
03 00 Note 1 46 PN 89 DC
04 xx 47 PN 90 DC
05 xx 48 PN 91 DC
06 xx 49 PN 92 68
07 00 50 PN 93 B0
08 00 51 PN 94 02
09 00 52 PN 95 CS2 Note 9
10 00 53 PN 96 00

11 03 54 PN 97 00
12 02 55 PN 98 00
13 00 56 30 99 00
14 xx Note 2 57 30 100 00
15 FF Note 3 58 30 101 00
16 00 59 41 102 00
17 00 60 CW Note 5 103 00
18 00 61 CW Note 5 104 00
19 00 62 00 105 00
20 44 D 63 CS1 Note 6 106 00
21 45 E 64 00 107 00
22 4C L 65 1A 108 00
23 54 T 66 00 109 00
24 41 A 67 00 110 00
25 20 68 SN Note 7 111 00
26 20 69 SN 112 00
27 20 70 SN 113 00
28 20 71 SN 114 00
29 20 72 SN 115 00
30 20 73 SN 116 00
31 20 74 SN 117 00
32 20 75 SN 118 00
33 20 76 SN 119 00
34 20 77 SN 120 00
35 20 78 SN 121 00
36 00 79 SN 122 00
37 00 80 SN 123 00
38 00 81 SN 124 00
39 00 82 SN 125 00
40 PN Note4 83 SN 126 00
41 PN 84 DC Note 8 127 00
42 PN 85 DC 128 00 Note 10

Notes:

1) Byte 3~10: Code for electronic compatibility or optical compatibility.

2) Byte 14: Transmission distance in km.

3) Byte 15: Transmission distance in 100m, distance >25.5km: FFh.

4) Byte 40-55: Delta part number.

5) Byte 60-61: The center wavelength of transmitter.

6) Byte 63: Check sum of bytes 0-62.

7) Byte 68-83: Serial number.

10 Jun., 2007

DELTA ELECTRONICS, INC.

Rev. 0F

www.deltaww.com

8) Byte 84-91: Date code.

9) Byte 95: Check sum of bytes 64-94.

10) Byte 128 to 255 had been set hex 00.

Digital Diagnostic Monitoring Interface

Alarm and Warning Thresholds (2-Wire Address A2h)

Address

00-01 2 Temp High Alarm TC (MAX.)+15

#

Bytes

Name Value (Dec.) Unit Note

℃

02-03 2 Temp Low Alarm TC (MIN.)
04-05 2 Temp High Warning T
06-07 2 Temp Low Warning T
08-09 2 Voltage High Alarm Vcc+5%

(MAX.)+10

C

(MIN.)+10

C

Volt
10-11 2 Voltage Low Alarm Vcc-5%
12-13 2 Voltage High Warning Vcc+3%
14-15 2 Voltage Low Warning Vcc-3%
16-17 2 Bias High Alarm IOP*2+35
18-19 2 Bias Low Alarm I
20-21 2 Bias High Warning I
22-23 2 Bias Low Warning I

OP

*2+30

OP

OP

-13

–8

24-25 2 TX Power High Alarm P+3

mA 2

dBm 3
26-27 2 TX Power Low Alarm P-3
28-29 2 TX Power High Warning P+2
30-31 2 TX Power Low Warning P-2
32-33 2 RX Power High Alarm P0+3
34-35 2 RX Power Low Alarm P
36-37 2 RX Power High Warning P
38-39 2 RX Power Low Warning P

S

0

-2

+2

S

dBm 4

40-45 16 Reversed
56-91 36 External Calibration Constants
92-94 3 Reversed

95 1 Checksum 5
96-97 2 Real Time Temperature
98-99 2 Real Time Supply Voltage

100-101 2 Real Time Tx Bias Current
102-103 2 Real Time Tx Optical Power
104-105 2 Real Time Rx Received Power
106-109 4 Reserved

110 1 Optional Status/ Control Bits 6
111 1 Reserved

112- 119 8 Optional Set of Alarm and Warning 7

Notes:

1

: Case Operating temperature.

1) T

C

2) I

: Operating current at room temperature. The min. setting current is 0 mA.

OP

3) P: Operating optical power of transmitter at room temperature.

4) P

: Overload optical power of receiver.

0

11 Jun., 2007

DELTA ELECTRONICS, INC.

Rev. 0F

www.deltaww.com

P

: Sensitivity optical power of receiver.

S

5) Byte 95 contains the low order 8bits of sum of bytes 0-94.

6)

State/ Control Bits

Byte Bit Name Description

110 7 Tx Disable State Digital state of the Tx disable input pin
110 6 Soft Tx Disable Read/ Write bit that allow software disable of laser
110 5 Reserved
110 4 Rate Select tate NA
110 3 Soft Rate Select NA
110 2 Tx Fault Digital state of the Tx fault output pin
110 1 LOS Digital state of the LOS output pin.
110 0 Data_Ready_Bar NA

7)

Optional Set of Alarm and Warning

Byte Bit Name Description

112 7 Temp High Alarm Set when internal temperature exceeds high alarm level
112 6 Temp Low Alarm Set when internal temperature is below low alarm level
112 5 Vcc High Alarm Set when internal supply voltage exceeds high alarm level
112 4 Vcc Low Alarm Set when internal supply voltage is below low alarm level
112 3 Tx Bias High Alarm Set when Tx Bias current exceeds high alarm level
112 2 Tx Bias Low Alarm Set when Tx Bias current is below low alarm level
112 1 Tx Power High Alarm Set when Tx output power exceeds high alarm level
112 0 Tx Power Low Alarm Set when Tx output power is below low alarm level
113 7 Rx Power High Alarm Set when received power exceeds high alarm level
113 6 Rx Power Low Alarm Set when received power is below low alarm level
113 5-0 Reserved
116 7 Temp High Warning Set when internal temperature exceeds high warning level
116 6 Temp Low Warning Set when internal temperature is below low warning level
116 5 Vcc High Warning Set when internal supply voltage exceeds high warning level
116 4 Vcc Low Warning Set when internal supply voltage is below low warning level
116 3 Tx Bias High Warning Set when Tx Bias current exceeds high warning level
116 2 Tx Bias Low Warning Set when Tx Bias current is below low warning level
116 1 Tx Power High Warning Set when Tx output power exceeds high warning level
116 0 Tx Power Low Warning Set when Tx output power is below low warning level
117 7 Rx Power High Warning Set when received power exceeds high warning level
117 6 Rx Power Low Warning Set when received power is below low warning level
117 5-0 Reserved

Digital Diagnostic Monitor Accuracy

Parameter Typical Value Note

Transceiver Temperature
Power Supply Voltage ± 3% 2
TX Bias Current ± 10%
TX Optical Power ± 1.5dB
RX Optical Power ± 3dB 3

Notes:

DELTA ELECTRONICS, INC.

± 3℃

12 Jun., 2007

www.deltaww.com

1

Rev. 0F

1) Temperature is measured internal to the transceiver.

2) Voltage is measured internal to the transceiver.

3)

Valid from –34dBm to -10 dBm.

Regulatory Compliance

Test Item Reference

(#1)

Electromagnetic Interference

EMC

(#2) Immunity：

Radio Frequency
Electromagnetic Field

(#3) Immunity：

Electrostatic Discharge to the
Duplex SC Receptacle

(#4) Electrostatic Discharge to
the Electrical Pins

FCC Class B

EN 55022 Class B

CISPR 22

EN 61000-4-3

IEC 1000-4-3

EN 61000-4-2

IEC 1000-4-2

IEC 801.2

MIL-STD-883C
Method 3015.4

EIAJ#1988.3.2B

Version 2,

Qty’ Evaluation

5

5

(1) Satisfied with electrical characteristics of

product spec.

5

(2) No physical damage

5

DELTA ELECTRONICS, INC.

Machine model

13 Jun., 2007

Rev. 0F

www.deltaww.com

Ordering information for SFP modules

LCP-155D4 X1 X2 X3 X

X1:

Link Budget

R: 29dB
V: 33dB
U: 36dB

X3: RoHS Compliance

R: RoHS Compliant

4

X2:

47: Single-mode 1470nm
49: Single-mode 1490nm
51: Single-mode 1510nm
53: Single-mode 1530nm
55: Single-mode 1550nm
57: Single-mode 1570nm
59: Single-mode 1590nm
61: Single-mode 1610nm

X4: Temperature

Blank: -5 to +70 degree C
H: -10 to +85 degree C
T: -40 to +85 degree C

Wavelength

Revision History

Rev Date Contents

0A Jun., 2006 First release
0B Aug., 2006 Add -10 to +85 and -40 to +85 degree C P/Ns in data sheet

0C Aug., 2006 1. Update A2h design

2. Changed the wavelength range

0D Nov., 2006 Add LCP-155D4UxxR series products in data sheet.

0E Dec., 2006 To change the supply current from 300mA to 380mA for LCP-155D4xxxRH and

LCP-155D4xxxRT.

0F Jun., 2007 To add note 3 for Digital Diagnostic Monitor Accuracy

To modify the Byte 59, 66 and 67 of the A0h EEPROM.

.

DELTA ELECTRONICS, INC.

14 Jun., 2007

Rev. 0F

www.deltaww.com