Delta Electronics LCP-2488A4EDRxM User Manual

Page 1
LCP-2488A4EDRxM
RoHS Compliant Multirate Small Form Factor Pluggable Transceiver for SONET OC-48/SDH STM-16 with Digital Diagnostic Function
FEATURES
z Compliant with SFP Transceiver SFF-8472
MSA specification with internal calibration
z Compliant with the 2.125GBd Fiber Channel
FC-PI 200-M5-SN-I Rev.13
z Compliant with the 1.0625GBd Fiber Channel
FC-PI 100-M5-SN-I Rev.13
z Compliant with Specifications for IEEE
802.3z/Gigabit Ethernet
z Single +3.3V Power Supply and TTL Logic
Interface
z Laser Class 1 Product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
z Duplex LC Connector interface
Description
The LCP-2488A4EDRxM is hot pluggable
3.3V Small-Form-Factor transceiver modules
designed expressly for high-speed communication
applications that require rates up to 2.5Gb/s. The
transceiver is data rate transparent, which means it
can comply with Gigabit Ethernet as specified in
IEEE Std 802.3 and Fibre Channel FC-PI 13.0.
They are compatible with SONET OC-48, SONET
OC-12 and SONET OC-3 standards.
The LCP-2488A4EDRxM is designed to be
compliant with SFF-8472 SFP Multi-source
Agreement (MSA) with five digital monitoring
functions: Temperature, V
laser bias current, and RX received optical power.
The post-amplifier of the LCP-2488A4EDRxM
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 optical power, TX
CC
Applications
z SONET OC-48/STM-1
z SONET OC-12/STM-4
z SONET OC-3/STM-16
z Gigabit Ethernet/ Fibre Channel
Performance
z LCP-2488A4EDRxM Data Link up to 300m in
50/125μm Multi-Mode Fiber
DELTA ELECTRONICS, INC.
1 Nov., 2006
Rev. 0A
www.deltaww.com
Page 2
LCP-2488A4EDRxM
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
Note 1: See order information
Electrical Characteristics
(VCC=3.3V ± 5%)
Parameter Symbol Min. Typ. Max. Unit Note Total Supply Current ICCT 250 mA
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 Transmitter Fault Output-High V Transmitter Fault Output-Low V
Receiver
Receiver Differential Output Voltage VDR 0.35 0.7 2 V 3 Receiver LOS Load R LOS Output Voltage-High V LOS Output Voltage-Low V Output Data Rise/Fall Time tr/ tf 200 psec 4
Notes:
1. Internally AC coupled and terminated to 100Ohm differential load.
2 VCC+0.3 V
DISH
0 0.8 V
DISL
TX_FAULT
TXFH
TXFL
RXLOS
LOSH
LOSL
4.7 10 k 2
2 VCC+0.3 V
0 0.8 V
4.7 10 k 2
2 VCC+0.3 V
0 0.8 V
2. Pull up to V
on host Board
CC
3. Internally AC coupled, but requires a 100 Ohm differential termination at or internal to Serializer/
Deserializer.
4. These are 20%~80% values
2 Nov., 2006
Rev. 0A
DELTA ELECTRONICS, INC.
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Page 3
LCP-2488A4EDRxM
Optical Characteristics
(VCC=3.3V ± 5%, Data Rate=2.488Gb/sec, PRBS=223-1 NRZ)
Parameter Symbol Min. Typ. Max. Unit Note
Transmitter
Output Optical Power (Avg.) PO -9.5 -4 dBm Optical Extinction Ratio ER 8.2 dB
C
Center Wavelength Spectral Width (RMS) Optical Rise/Fall Time Relative Intensity Noise
Output Eye
λ
σ
/ tf 150/200 psec 1
t
r
RIN -117 dB/Hz
Complies with the IEEE 802.3z/D2 specification, and is class 1 laser eye safety
Receiver
Sensitivity (Avg.) @ OC-48 @ 2x Fibre Channel @ Gigabit Ethernet
P
IN
@ OC-12 @ OC-3
Input Optical Wavelength
λ
LOS-De-asserted (Avg.) PA -17 dBm LOS-Asserted (Avg.) PD -30 dBm LOS-Hysteresis PA-PD 0.5 dB Overload PO -3 dBm
Notes:
1. These are 20%~80% values
2. Measured with 9dB extinction ratio light source and PRBS 2
3. Measured with 9dB extinction ratio light source and PRBS 2
830 850 860 nm
0.85 nm
-17
-17
-17
-20
-21
dBm
2 3 3 2 2
850 nm
23
-1 test pattern.
7
-1 test pattern.
Amplitude
Amplitude
Optical Pulse Mask with Bessel Fil ter Specified in ITU-T G.957
Optical Pulse Mask with Bessel Fil ter Specified in ITU-T G.957
Mask of the eye diagram for the optical transmit signal
DELTA ELECTRONICS, INC.
1.25
1.25
1.00
1.00
0.75
0.75
0.25
0.25
0.00
0.00
-0.25
-0.25
Mean level of logical “1”
Mean level of logical “1”
Mean level of logical “0”
Mean level of logical “0”
Time
Time
3 Nov., 2006
www.deltaww.com
Rev. 0A
Page 4
SFP Transceiver Electrical Pad Layout
LCP-2488A4EDRxM
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 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.
Note 2 Module disables on high or open
DELTA ELECTRONICS, INC.
4 Nov., 2006
Rev. 0A
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Page 5
LCP-2488A4EDRxM
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 – 10Kresistor 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.
5 Nov., 2006
Rev. 0A
www.deltaww.com
Page 6
Recommend Circuit Schematic
LCP-2488A4EDRxM
Protocol Vcc
Tx_Disable
Tx_Fault
Rx_LOS
VCC
SerDes ICProtocol IC
PLD / PAL
1uH
1uH
RES1
100 Ohms*
3.3V
0.1uF10uF
RES1
3.3V
RES1 RES1 RES1
RES1 = 4.7k to 10k Ohms
* Depands on SerDes IC used
0.1uF
Tx_Disable
Tx_Fault
TD +
TD -
VeeT
0.1uF10uF
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.
6 Nov., 2006
Rev. 0A
www.deltaww.com
Page 7
Package Outline Drawing
LCP-2488A4EDRxM
DELTA ELECTRONICS, INC.
7 Nov., 2006
Rev. 0A
www.deltaww.com
Page 8
LCP-2488A4EDRxM
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.
2)
Time from falling edge of TX_DISABLE to when the modulated optical output rises above 90% of
nominal.
3)
From power on or negation of TX_Fault using TX Disable.
4)
Time from fault to TX fault on.
Time TX Disable must be held high to reset TX_Fault
5)
6)
Time from LOS state to Rx LOS assert
t_init 300 msec 3
7) Time from non-LOS state to Rx LOS deassert
DELTA ELECTRONICS, INC.
8 Nov., 2006
Rev. 0A
www.deltaww.com
Page 9
LCP-2488A4EDRxM
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 (Note)
127
User Writable EEPROM
(120 bytes)
247
255
Digital Diagnostic Memory Map Specific Data Field Descriptions
Note:
1) Write the password (11h, 11h, 11h, 11h) on the bytes of 123-126 of address A2h then the address of
bytes 128-255 (User Writable) can be read and written.
DELTA ELECTRONICS, INC.
248
255
9 Nov., 2006
Vender Spe cific
(8 bytes)
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Rev. 0A
Page 10
LCP-2488A4EDRxM
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 00 47 PN 90 DC 05 00 48 PN 91 DC 06 xx 49 PN 92 68 07 xx 50 PN 93 B0 08 xx 51 PN 94 02 09 xx 52 PN 95 CS2 Note 9 10 xx 53 PN 96 00 11 05 54 PN 97 00 12 19 55 PN 98 00 13 00 56 30 99 00 14 00 57 30 100 00 15 00 58 30 101 00 16 xx Note 2 59 0A 102 00 17 xx Note 3 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 05 109 00 24 41 A 67 05 110 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 16: Link length supported for 50/125μm MM fiber, units of 10 m.
3) Byte 17: Link length supported for 62.5/125μm MM fiber, units of 10 m.
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 Nov., 2006
DELTA ELECTRONICS, INC.
Rev. 0A
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Page 11
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)
LCP-2488A4EDRxM
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 I 18-19 2 Bias Low Alarm I 20-21 2 Bias High Warning I 22-23 2 Bias Low Warning I
OP
OP
OP
OP
+10
-5
+7
-3
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 P 34-35 2 RX Power Low Alarm P 36-37 2 RX Power High Warning P 38-39 2 RX Power Low Warning P
0
S
0
+3
-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) T
: Case Operating temperature
C
: Operating current at room temperature. The min. setting current is 0 mA.
2) I
OP
3) P: Operating optical power of transmitter at room temperature.
: Overload optical power of receiver
4) P
0
1
DELTA ELECTRONICS, INC.
11 Nov., 2006
Rev. 0A
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Page 12
LCP-2488A4EDRxM
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 Ty pical Value Note
Transceiver Temperature Power Supply Voltage ± 3% 2 TX Bias Current ± 10% TX Optical Power ± 1.5dB RX Optical Power ± 3dB
Notes:
DELTA ELECTRONICS, INC.
± 3
12 Nov., 2006
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1
Rev. 0A
Page 13
1) Temperature is measured internal to the transceiver.
2) Voltage is measured internal to the transceiver.
Regulatory Compliance
LCP-2488A4EDRxM
Test Item Reference Qty’
(#1) Electromagnetic Interference EMC
FCC Class B EN 55022 Class B CISPR 22
(#2) Immunity Radio Frequency
Electromagnetic Field
EN 61000-4-3 IEC 1000-4-3
(#3) Immunity Electrostatic Discharge to the
Duplex SC Receptacle
EN 61000-4-2 IEC 1000-4-2 IEC 801.2
(#4) Electrostatic Discharge to the Electrical Pins
MIL-STD-883C Method 3015.4 EIAJ#1988.3.2B Version 2, Machine model
Ordering information for SFP modules
Evaluation
5
5
(1) Satisfied with electrical characteristics of
product spec.
5
(2) No physical damage
5
LCP-2488X1X2X3X4X5X6X7
: Fiber
X
1
A: Multi-mode 850nm
X
: Power Supply Voltage and SD Level
2
4: 3.3V, TTL SD Level
Distance
X
:
3
E: 300m
X
:
4
Digital Diagnostic Function D: DDM series, with digital diagnostic
function
DELTA ELECTRONICS, INC.
X5:
R: RoHS Compliant
X6: Temperature
Blank: -5 to +70 degree C H: -10 to +85 degree C T: -40 to +85 degree C
X
: Rate
7
Blank:
single-rate(2488Mbps)
M: Multi-rate
13 Nov., 2006
Rev. 0A
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