RoHS Compliant 850nm 3.072 / 2.4576Gbps SFP Transceiver for

RoHS Compliant 850nm 3.072 / 2.4576Gbps SFP Transceiver for
OBSAI/CPRI Application with Digital Diagnostic Monitoring Function
FEATURES
z Compliant with SFP transceiver SFF-8472
MSA specification
z 850nm VCSEL laser
z Built-in digital diagnostic monitoring function
z Compliant with OBSAI or CPRI protocols for
wireless base station
z Compliant with Industry Standard RFT
Electrical Connector and Cage
z Duplex LC connector
z Laser Class 1 Product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
Description
Applications
The LCP-3072A4CDRT is hot pluggable 3.3V z Up to 380m link over OM3 MMF for 3.072Gbps
Small-Form-Factor transceiver modules designed
CPRI/OBSAI application
for high-speed communication applications that
z Up to 500m link over OM3 MMF for 2.4576Gbps
require rates up to 3.072Gbps.
CPRI/OBSAI application
The LCP-3072A4CDRT is designed to be
compliant with SFF-8472 SFP Multi-source
Transmission Distances
Agreement (MSA) with digital diagnostic
monitoring functions: Temperature, VCC, TX
OM3
OM2
OM1
Data Rate
MMF
MMF
MMF
optical power, TX laser bias current, and RX
received optical power.
3.072Gbps 380m 150m
70m
The post-amplifier of the LCP-3072A4CDRT
2.4576Gbps 500m 300m
150m
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.
1
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
Absolute Maximum Ratings
Parameter
Storage Temperature
Supply Voltage
Symbol
TS
VCC
Min.
-40
0
Typ.
Max.
85
5
Unit
ºC
V
Note
Symbol
TC
VCC
Min.
-5
3.135
Typ.
Max.
70
3.465
Unit
ºC
V
Note
1
Symbol
ICC
Min.
Typ.
Max.
300
Unit
mA
Note
Vin,pp
VDISH
VDISL
RTX_FAULT
VTXFH
VTXFL
0.5
2
0
4.7
2
0
2.4
VCC+0.3
0.8
10
VCC+0.3
0.8
V
V
V
kΩ
V
V
1
Vout,pp
RRXLOS
VLOSH
VLOSL
tr/ tf
0.3
4.7
2
0
1
10
VCC+0.3
0.8
200
V
kΩ
V
V
psec
3
2
Recommended Operating Conditions
Parameter
Case Operating Temperature
Supply Voltage
Note 1: See order information for detail
Electrical Characteristics
(VCC=3.135V to 3.465V)
Parameter
Total Supply Current
Transmitter
Transmitter Differential Input Voltage
Transmitter Disable Input-High
Transmitter Disable Input-Low
Transmitter Fault Pull up Resistor
Transmitter Fault Output-High
Transmitter Fault Output-Low
Receiver
Receiver Differential Output Voltage
Receiver LOS Load
LOS Output Voltage-Low
LOS Output Voltage-High
Output Data Rise/Fall Time
Notes:
2
4
1.
Internally AC coupled and terminated to 100 Ohm differential load.
2.
Pull up to VCC on host Board.
3.
Internally AC coupled, but requires a 100 Ohm differential termination at or internal to Serializer/ Deserializer.
4.
Unfiltered, 20 – 80%.
2
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
Optical Characteristics
(VCC=3.135V to 3.465V, Data Rate=2.4576Gbps and 3.072Gbps, PRBS=27-1 NRZ)
Parameter
Transmitter
Output Optical Power (Avg.)
Optical Modulation Amplitude
Center Wavelength
Spectral Width (RMS)
Optical Rise/Fall Time (20% - 80%)
Total Jitter(pk-pk)
Relative Intensity Noise
Output Eye
Receiver
Overload in Average Power
Sensitivity in OMA
LOS-De-asserted (Avg.)
LOS-Asserted (Avg.)
LOS-Hysteresis
Optical Return Loss
Symbol
Min.
Typ.
Max.
Unit
Note
PO
-9
dBm
1
247
OMA
2
µW
λ
830
860
nm
σ
0.85
nm
tr/ tf
100
psec
3
TJ
80
psec
RIN
-118 dB/Hz
Complies with the ANSI FC-PI Rev. 13 specification, and is class 1
laser eye safety
P0
PS
PD
PA
PD -PA
ORL
0
61
-19
-30
0.5
12
dBm
uW
dBm
dBm
dB
dB
.
4
Notes:
1. Max output optical power is lesser than Class 1 safety limits (CDRH and EN 60825)
2. Measured with 50/125um multi-mode fiber.
3. Measured at nominal data rate. These are unfiltered 20%~80% values.
4. The sensitivity is tested at a BER of 1×10-12 or better with an input signal consisting of 27-1 NRZ PRBS.
Mask of the eye diagram for the optical transmit signal
3
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
SFP Transceiver Electrical Pad Layout
Pin Function Definitions
Pin Num.
1
2
Name
VeeT
TX Fault
Function
Transmitter Ground
Transmitter Fault Indication
3
TX Disable
Transmitter Disable
4
5
6
MOD-DEF2
MOD-DEF1
MOD-DEF0
Module Definition 2
Module Definition 1
Module Definition 0
7
Rate Select
1&2 or 2&4 Gbit/s
8
9
10
11
12
13
14
15
16
17
18
19
20
LOS
VeeR
VeeR
VeeR
RDRD+
VeeR
VccR
VccT
VeeT
TD+
TDVeeT
Plug Seq.
Notes
1
3
Note 1
Note 2
3
Module disables on high or open
3
Note 3, 2 wire serial ID interface
3
Note 3, 2 wire serial ID interface
3
Note 3, Grounded in Module
Note 4, Open or Low = 1.063Gb/s, High
3
= 2.125Gb/s or 4.25Gb/s
3
Note 5
1
Note 6
1
Note 6
1
Note 6
3
Note 7
3
Note 8
1
Note 6
2
3.3 ± 5%, Note 7
2
3.3 ± 5%, Note 7
1
Note 6
3
Note 9
3
Note 9
1
Note 6
Loss of Signal
Receiver Ground
Receiver Ground
Receiver Ground
Inv. Received Data Out
Received Data Out
Receiver Ground
Receiver Power
Transmitter Power
Transmitter Ground
Transmit Data In
Inv. Transmit Data In
Transmitter Ground
Plug Seq.: Pin engagement sequence during hot plugging.
4
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
Notes:
1)
TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ 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 Ω resistor. Its states are:
3)
Low (0 – 0.8V):
Transmitter on
(>0.8, < 2.0V):
Undefined
High (2.0 – 3.465V):
Transmitter Disabled
Open:
Transmitter Disabled
Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10KΩresistor 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)
In accordance to SFF Committee SFF-8079 Draft Rev. 1.6.
5)
LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ 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.
6)
VeeR and VeeT may be internally connected within the SFP module.
7)
RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be
terminated with 100Ω (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.
8)
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 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 30 mA greater than the
steady state value. VccR and VccT may be internally connected within the SFP transceiver module.
9) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100 Ω
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.
5
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
Recommend Circuit Schematic
VCC
1uH
3.3V
DELTA SFP Module
Protocol Vcc
1uH
10uF
RES1
0.1uF
0.1uF
VccT
10k Ohms
Tx_Disable
Tx_Disable
Tx_Fault
Tx_Fault
TD +
0.01uF
Laser Driver
100 Ohms
Laser Diode
TD -
Protocol IC
0.01uF
VeeT
SerDes IC
VccR
RES1
0.1uF
10uF
RD +
100 Ohms*
Preamp &
Quantizer
0.01uF
RD Rx_LOS
Rate Select
Rx_LOS
Rate Select
Photo Diode
0.01uF
3.3V
30k Ohms
VeeR
RES1
RES1
RES1
PLD / PAL
Mod_def 2
EEPROM
Mod_def 1
Mod_def 0
RES1 = 4.7k to 10k Ohms
* Depands on SerDes IC used
6
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
Package Outline Drawing for Metal Housing with Bail de-latch
Complies with 21 CFR
1040.10 and 1040.11
Made in x
FS
Latch Color Identifier
Black
7
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
SFP timing parameters for SFP management
Parameter
TX_DISABLE Assert time
TX_DISABLE Negate time
Time to initialize, including
reset of TX_FAULT
TX Fault Assert Time
TX_DISABLE to reset
LOS Assert Time
LOS Deassert Time
Serial ID Clock Rate
Symbol
t_off
t_on
Min.
Max.
100
2
Unit
µsec
msec
Note
1
2
t_init
300
msec
3
t_fault
t_rest
t_loss_on
t_loss_off
f_serial_clock
100
µsec
µsec
µsec
µsec
kHz
4
5
6
7
10
100
100
100
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.
5) Time TX Disable must be held high to reset TX_Fault.
6) Time from LOS state to Rx LOS assert.
7) Time from non-LOS state to Rx LOS deassert.
8
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
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)
55
Serial ID Defined by SFP MSA
(96 bytes)
56
Cal Constants
(40 bytes)
95
96
95
96
Real Time Diagnostic Interface
(24 bytes)
119
Vender Specific
(32 bytes)
120
Vender Specific(Note)
127
127
128
128
Reserved in SFP MSA
(128 bytes)
247
248
255
255
User Writable EEPROM
(120 bytes)
Vender Specific
(8 bytes)
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.
9
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
EEPROM Serial ID Memory Contents (2-Wire Address A0h)
Address
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
Hex
03
04
07
00
00
00
00
40
40
0C
00
03
1F
00
00
00
0F
07
00
26
44
45
4C
54
41
20
20
20
20
20
20
20
20
20
20
20
00
00
00
00
4C
43
50
ASCII
Note 1
Note 2
Note 3
D
E
L
T
A
Note4
L
C
P
Address
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
Hex
2D
33
30
37
32
41
34
43
44
52
54
20
20
41
20
20
20
03
52
00
CS1
00
1A
00
00
SN
SN
SN
SN
SN
SN
SN
SN
SN
SN
SN
SN
SN
SN
SN
SN
DC
DC
ASCII
3
0
7
2
A
4
C
D
R
T
Note 5
Note 6
Note 7
Address
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
Hex
DC
DC
DC
DC
DC
DC
68
F0
02
CS2
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
ASCII
Note 8
Note9
Notes:
1)
Byte 16: Link length supported for OM2 MMF, units of 10 m.
2)
Byte 17: Link length supported for OM1 MMF, units of 10 m
3)
Byte 18: Link length supported for OM3 MMF, units of 10 m
4)
Byte 40-55: Delta part number
5)
Byte 63: Check sum of bytes 0-62.
6)
Byte 68-83: Serial number.
7)
Byte 84-91: Date code.
8)
Byte 95: Check sum of bytes 64-94.
10
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
9)
Byte 128 to 255 had been set hex 00.
Digital Diagnostic Monitoring Interface
Alarm and Warning Thresholds (2-Wire Address A2h)
Address
#
Bytes
00-01
02-03
04-05
06-07
08-09
10-11
12-13
14-15
16-17
18-19
20-21
22-23
24-25
26-27
28-29
30-31
32-33
34-35
36-37
38-39
40-45
56-91
92-94
95
96-97
98-99
100-101
102-103
104-105
106-109
110
111
112-119
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
16
36
3
1
2
2
2
2
2
4
1
1
8
Name
Temp High Alarm
Temp Low Alarm
Temp High Warning
Temp Low Warning
Voltage High Alarm
Voltage Low Alarm
Voltage High Warning
Voltage Low Warning
Bias High Alarm
Bias Low Alarm
Bias High Warning
Bias Low Warning
TX Power High Alarm
TX Power Low Alarm
TX Power High Warning
TX Power Low Warning
RX Power High Alarm
RX Power Low Alarm
RX Power High Warning
RX Power Low Warning
Reversed
External Calibration Constants
Reversed
Checksum
Real Time Temperature
Real Time Supply Voltage
Real Time Tx Bias Current
Real Time Tx Optical Power
Real Time Rx Received Power
Reserved
Optional Status/ Control Bits
Reserved
Optional Set of Alarm and Warning
Value (Dec.)
Unit
Note
TC (MAX.)+8
TC (MIN.)-8
TC (MAX.)+3
TC (MIN.)-3
Vcc+0.5
Vcc-0.5
Vcc+0.2
Vcc-0.2
IOP+10
IOP-5
IOP+7
IOP-3
Ph+2
Pl -2
Ph+1
Pl -1
P0+2
PS-2
P0+1
PS-1
℃
1
Volt
mA
2
dBm
3
dBm
4
5
6
7
Notes:
1) TC: Case Operating temperature
2) IOP: Operating current at room temperature. The min. setting current is 0 mA.
3) Ph: Maximum value of transmitter optical power
Pl : Minimum value of transmitter optical power
4) P0: Overload optical power of receiver
PS: Sensitivity optical power of receiver
5) Byte 95 contains the low order 8bits of sum of bytes 0-94
11
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
6)
State/ Control Bits
Byte
110
110
110
110
110
110
110
110
Bit
7
6
5
4
3
2
1
0
Name
Tx Disable State
Soft Tx Disable
Reserved
Rate Select tate
Soft Rate Select
Tx Fault
LOS
Data_Ready_Bar
Description
Digital state of the Tx disable input pin
Read/ Write bit that allow software disable of laser
NA
NA
Digital state of the Tx fault output pin
Digital state of the LOS output pin.
NA
7)
Optional Set of Alarm and Warning
Byte
112
112
112
112
112
112
112
112
113
113
113
116
116
116
116
116
116
116
116
117
117
117
Bit
7
6
5
4
3
2
1
0
7
6
5-0
7
6
5
4
3
2
1
0
7
6
5-0
Name
Temp High Alarm
Temp Low Alarm
Vcc High Alarm
Vcc Low Alarm
Tx Bias High Alarm
Tx Bias Low Alarm
Tx Power High Alarm
Tx Power Low Alarm
Rx Power High Alarm
Rx Power Low Alarm
Reserved
Temp High Warning
Temp Low Warning
Vcc High Warning
Vcc Low Warning
Tx Bias High Warning
Tx Bias Low Warning
Tx Power High Warning
Tx Power Low Warning
Rx Power High Warning
Rx Power Low Warning
Reserved
Description
Set when internal temperature exceeds high alarm level
Set when internal temperature is below low alarm level
Set when internal supply voltage exceeds high alarm level
Set when internal supply voltage is below low alarm level
Set when Tx Bias current exceeds high alarm level
Set when Tx Bias current is below low alarm level
Set when Tx output power exceeds high alarm level
Set when Tx output power is below low alarm level
Set when received power exceeds high alarm level
Set when received power is below low alarm level
Set when internal temperature exceeds high warning level
Set when internal temperature is below low warning level
Set when internal supply voltage exceeds high warning level
Set when internal supply voltage is below low warning level
Set when Tx Bias current exceeds high warning level
Set when Tx Bias current is below low warning level
Set when Tx output power exceeds high warning level
Set when Tx output power is below low warning level
Set when received power exceeds high warning level
Set when received power is below low warning level
Digital Diagnostic Monitor Accuracy
Parameter
Typical Value
Note
± 3℃
± 3%
± 10%
± 1.5dB
± 3dB
1
2
Transceiver Temperature
Power Supply Voltage
TX Bias Current
TX Optical Power
RX Optical Power
Notes:
1)
Temperature is measured internal to the transceiver
2) Voltage is measured internal to the transceiver
12
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
Regulatory Compliance
Feature
Reference
Electromagnetic Interference (EMI)
FCC Part15 Class B
Electrostatic Discharge (ESD)
IEC/EN 61000-4-2
MIL-STD-883E
EIA-JESD22-A115-A
Laser Eye Safety
IEC 60825-1:2001
EN 60825
Component Recognition
IEC/EN 60950-1
UL60950
Ordering information for SFP modules
LCP-3072A4CDRX1
X1: Temperature
Blank: -5 to +70 degree C
H: -10 to +85 degree C
T: -40 to +85 degree C
13
DELTA ELECTRONICS, INC.
2009/5/6
Rev. 0A
www.deltaww.com
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