Delta Electronics LCP-155A4HSRx Series User manual

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
1uH
0.1uF10uF
0.1uF
0.01uF
0.01uF
0.01uF
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
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.