Proprietary protocol and density applications；Data aggregation and backplane applications
40G BiDi QSFP+ SR4 850nm/900nm 150M LC MMF
Description
The 40 BiDi QSFP+ SR4 100M/150M is a 4x10G hot-pluggable optical transceiver module. It is designed for 100M/150M optical communication applications over multimode fiber using a wavelength of 850nm/900nm via LC connectors. This transceiver is a high performance module for short-range duplex data communication and interconnect applications. It integrates four electrical data lanes in
each direction into transmission over a single LC duplex fiber optic cable. Each electrical lane operates at 10.3125 Gbps and conforms to the 40GE XLPPI interface.
The transceiver internally multiplexes an XLPPI 4x10G interface into two 20Gb/s electrical channels, transmitting and receiving each optically over one simplex LC fiber using bi-directional optics. This results in an aggregate bandwidth of 40Gbps into a duplex LC cable. This allows reuse of the installed LC duplex cabling infrastructure for 40GbE application.
3. Electrical Characteristics (TOP = 0 to 70 °C, VCC = 3.13 to 3.47 Volts)
Parameter
Symbol
Min.
Typical
Max.
Unit
Note
Data Rate per Channel
10.3125
11.2
Gbps
Power Consumption
2.5
3.5
W
Supply Current
0.75
1.0
A
Control I/O Voltage-High
Icc
Vcc
V
Control I/O Voltage-Low
VIH
2.0
0.7
V
Inter-Channel Skew
VIL
0
150
Ps
RESETL Duration
TSK
10
Us
RESETL De-assert time
100
ms
Power On Time
100
ms
Transmitter
Single Ended Output
Voltage Tolerance
0.3
4
V
Common mode Volt.Tolerance
15
mV
Transmit Input Diff Voltage
VI
120
1200
mV
Transmit Input Diff Impedance
ZIN
80
100
120
Data Dependent Input Jitter
DDJ
0.1
UI
Data Input Total Jitter
TJ
0.28
UI
Receiver
Single Ended Output
Voltage Tolerance
0.3
4
V
Rx Output Diff Voltage
Vo
600
800
mV
Rx Output Rise and Fall Voltage
Tr/Tf
35
ps
Total Jitter
TJ
0.7
UI
Deterministic Jitter
DJ
0.42
UI
4. Optical Parameters(TOP = 0 to 70 °C, VCC = 3.14 to 3.46 Volts)
Parameter
Symbol
Min.
Typical
Max.
Unit
Ref.
Transmitter
Optical Wavelength CH1
λ
832
850
868
nm
Optical Wavelength CH2
λ
882
900
918
nm
Spectral Width (RMS)
Pm
0.5
0.65
nm
Average Optical Power per Channel
Pavg
-4
-2.5
+5.0
dBm
Laser Off Power Per Channel
Poff
-30
dBm
Optical Wavelength CH1
ER
3.5
dB
Relative Intensity Noise
Rin
-128
dB/HZ
Optical Return Loss Tolerance
12
dB
Receiver
Optical Center Wavelength CH1
λ
882
900
918
nm
Optical Center Wavelength CH2
λ
832
850
868
nm
Receiver Sensitivity per Channel
R
-6
dBm
Maximum Input Power
PMAX
+0.5
-12
dBm
Receiver Reflectance
Rrx
-14
dB
LOS De-Assert
LOSD
dBm
LOS Assert
LOSA
-30
dBm
LOS Hysteresis
LOSH
0.5
dB
5. Diagnostic Monitoring Interface
Digital diagnostics monitoring function is available on all QSFP+ SR4. A 2-wire serial interface provides user to contact with module. The structure of the memory is shown in flowing. The memory space is arranged into a lower, single page, address space of 128 bytes and multiple upper address space pages. This structure permits timely access to addresses in the lower page, such as Interrupt Flags and Monitors. Less time critical time entries, such as serial ID information and threshold settings, are available with the Page Select function. The interface address used is A0xh and is mainly used for time critical data like interrupt handling in order to enable a one-time-read for all data related to an interrupt situation. After an interrupt, IntL has been asserted, the host can read out the flag field to determine the affected channel and type of flag.
Byte Address
Description
Type
0
ldentifier(1 Byte)
Read Only
1-2
Status (2 Bytes)
Read Only
3-21
lnterrupt Flags (31 Bytes)
Read Only
22-33
Module Monitors (12 Bytes)
Read Only
34-81
Channel Monitors (48 Bytes)
Read Only
82-85
Reserved (4 Bytes)
Read Only
56-97
Control (12 Bytes)
Read Only
98-99
Reserved (2 Bytes)
Read Only
100-106
Module and Channel Masks (7 Bytes)
Read Only
107-118
Reserved (12 Bytes)
Read Only
119-122
Reserved (4 Bytes)
Read Only
123-126
Reserved (4 Bytes)
Read Only
127
Page Select Byte
Read Only
128-175
Module Thresholds (48 Bytes)
Read Only
176-223
Reserved(48 Bytes)
Read Only
224-225
Reserved(2 Bytes)
Read Only
226-239
Reserved(14 Bytes)
Read Only
240-240
Channel Controls (2 Bytes)
Read Only
242-253
Reserved(12 Bytes)
Read Only
254-255
Reserved (2 Bytes)
Read Only
6.EEPROM Serial ID Memory Contents (A0h)
Data
Address
Length
(Byte)
Name of
Length
Description and Contents
6.1 Base ID Fields
128
1
Identifier
Identifier Type of serial Module(D=QSFP+)
129
1
Ext. Identifier
Extended Identifier of Serial Module(90=2.5W)
130
1
Connector
Code of connector type(7=LC)
131-138
8
Specification compliance
Code for electronic compatibility or optical compatibility(40GBASE-LR4)
139
1
Encoding
Code for serial encoding algorithm(5=64B66B)
140
1
BR, Nominal
Nominal bit rate, units of 100 MBits/s(6C=108)
141
1
Extended rateselect Compliance
Tags for extended rate select compliance
142
1
Length(SMF)
Link length supported for SMF fiber in km (28=40KM)
143
1
Length(OM3 50um)
Link length supported for EBW 50/125um fiber(OM3),
units of 2m
144
1
Length(OM2 50um)
Link length supported for 50/125um fiber(OM2),
units of 1m
145
1
Length(OM1 62.5um)
Link length supported for 62.5/125um fiber (OM1),
units of 1m
146
1
Length(Copper)
Link length of copper or active cable, unites of
1m Link length supported for 50/125um fiber (OM4),
units of 2m when Byte 147 declares 850nm VCSEL
as defined in Table 37
147
1
Device tech
Device technology
148-163
16
Vendor name
QSFP+ vendor name: TIBTRONIX (ASCII)
6.2 Base ID Fields
164
1
Extended Module
Extended Module codes for InfiniBand
165-167
3
Vendor OUI
QSFP+ vendor IEEE company ID(000840)
168-183
16
Vendor PN
Part number: hQPL40D (ASCII)
184-185
2
Vendor rev
Revision level for part number provided by vendor
(ASCII) (X1)
186-187
2
Wave length or Copper cable Attenuation
Nominal laser wavelength (wavelength=value/20 in nm)
or copper cable attenuation in dB at 2.5GHz (Adrs 186)
and 5.0GHz (Adrs 187) (65A4=1301)
188-189
2
Wavelength tolerance
Guaranteed range of laser wavelength(+/- value)
from nominal wavelength.
(wavelength Tol.=value/200 in nm) (1C84=36.5)
Indicates which types of diagnostic monitoring are implemented
(if any) in the Module. Bit 1, 0 Reserved (8=Average Power)
221
1
Enhanced Options
Indicates which optional enhanced features
are implemented in the Module.
222
1
Reserved
223
1
CC_EXT
Check code for the Extended ID Fields (addresses 192-222)
6.4 Vendor Specific ID Fields
224-255
32
Vendor Specific EEPROM
7.Timing for Soft Control and Status Functions
Parameter
Symbol
Max
Unit
Conditions
Initialization Time
t_init
2000
ms
Time from power on1, hot plug or rising edge of Reset until the module is fully functional2
Reset Init Assert Time
t_reset_
init
2
μs
A Reset is generated by a low level longer than the minimum reset pulse time present on the ResetL pin.
Serial Bus Hardware
Ready Time
t_serial
2000
ms
Time from power on1 until module responds to data transmission over the 2-wire serial bus
Monitor Data Ready Time
t_data
2000
ms
Time from power on1 to data not ready, bit 0 of Byte 2, deasserted and IntL asserted
Reset Assert Time
t_reset
2000
ms
Time from rising edge on the ResetL pin until the module is fully functional2
LPMode Assert Time
ton_
LPMode
100
μs
Time from assertion of LPMode (Vin:LPMode =Vih) until module power consumption enters lower Power Level
IntL Assert Time
ton_IntL
200
ms
Time from occurrence of condition triggering IntL until Vout:IntL = Vol
IntL Deassert Time
toff_IntL
500
μs
toff_IntL 500 μs Time from clear on read3 operation of associated flag until Vout:IntL = Voh. This includes deassert times for Rx LOS, Tx Fault and other flag bits.
Rx LOS Assert Time
ton_los
100
ms
Time from Rx LOS state to Rx LOS bit set and IntL asserted
Flag Assert Time
ton_flag
200
ms
Time from occurrence of condition triggering flag to associated flag bit set and IntL asserted
Mask Assert Time
ton_mask
100
ms
Time from mask bit set4 until associated IntL assertion is inhibited
Mask De-assert Time
toff_mask
100
ms
Time from mask bit cleared4 until associated IntlL operation resumes
ModSelL Assert Time
ton_
ModSelL
100
μs
Time from assertion of ModSelL until module responds to data transmission over the 2-wire serial bus
ModSelL Deassert Time
toff_
ModSelL
100
μs
Time from deassertion of ModSelL until the module does not respond to data transmission over the 2-wire serial bus
Power_over-ride or
Power-set Assert Time
toff_
Pdown
100
ms
Time from P_Down bit set 4 until module power consumption enters lower Power Level
Power_over-ride or
Power-set De-assert Time
toff_
Pdown
300
ms
Time from P_Down bit cleared4 until the module is fully functional3
8. Pin Assignment
9.Diagram Mechnical Drawing
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