40-Gbps QSFP to 4×10-Gbps SFP Break

UMEC
Photonics Division
40-Gbps QSFP+ to 4×10-Gbps
+
SFP Break-Out Active
Optical Cable
VER: 1.0
Release Date: May / 09 / 2016
PREPARED BY
APPROVAL
CHECK BY
DESIGN BY
JJ.Liu
Jackson
Huang
Universal Microelectronics Co., LTD.
3, 27th RD., Taichung Industrial Park, Taichung, Taiwan
TEL+886-4-23590096
FAX+886-4-23583251
UMEC
Photonics Division
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Change Description
UMEC
Photonics Division
1. Purpose
This document validates solely for the product of UMEC 40-Gbps QSFP+ to 4×10-Gbps SFP+
Break-Out Active Optical Cable (AOC) product specification. This document provides basic
information and electronic characteristics for customer reference only, and subjects to change
without notice.
2. General Description
UMEC’s 40-Gbps QSFP+ to 4×10-Gbps SFP+ Break-Out AOC allows interoperable connections
between a 40Gbps QSFP+ port and 4 separate 10Gbps SFP+ ports, enabling the flexible linkage of
servers, switches, or storages with different port interfaces. This AOC is of high-performance with
full-duplex and aggregate 40-Gbps. Compared with conventional copper cables, longer, lighter, and
flexible AOCs makes the ease of complicated data-center cablings because of its small cable diameter
of only 3-mm. High-quality 850-nm VCSELs and PIN PDs are adopted in this AOC cable with superior
signal integrity and link performance, bringing reliable operation performance.
3. Feature
•
Full-Duplex & 10-Gbps per lane with
maximum aggregate speed of 40-Gbps
•
Bit-Error-Rate (BER) better than 10-12
•
3.3V single power supply
•
Low power consumption of max. 1.5W at
QSFP+ and max. 0.5W at SFP+ side
•
Hot pluggable interface
•
Designed to meet MSA of SFF-8436 (QSFP+),
SFF-8431, and SFF-8472 (SFP+)
•
Programmable EEPROM for serial
identification through I2C interface
•
RoHS compliant
UMEC
Photonics Division
4. Absolute Maximum Rating
Not necessarily applied together. Exceeding these values may cause permanent damage. Functional
operation under these conditions is not implied.
Parameter
Min
Max
Unit
Note
0
70
℃
1
3.3V Power Supply Voltage
-0.5
3.6
V
Data Input Voltage- Single Ended
-0.5
Control Input Voltage
-0.5
3.6
V
5
85
%
Storage Temperature
Relative Humidity
Vcc+0.5
2
Notes:
1. Limited by the fiber cable jacket, not the active ends.
2. Non-condensing.
5. Recommended Operating Conditions
Parameter
Case Operating Temperature
Power Supply Voltage
Min
Typical
0
3.135
Date Rate per Channel
3.3
Max
Unit
70
℃
3.465
V
10.3125
Gbps
10-12
Bit Error Ratio
1
Control Input Voltage High
2
Vcc+0.3
V
Control Input Voltage Low
-0.3
0.8
V
Two Wire Serial (TWS) Interface Clock
Rate
100
kHz
Differential Data Input / Output Load
100
Ohms
Notes:
1. Bit-Error-Rate (BER) is tested with PRBS 231-1 pattern.
Note
UMEC
Photonics Division
6. Electrical Characteristics
QSFP+ Module Electrical Characteristics per 40GBase-SR4
Parameter
Min
Typical
Max
Unit
Transceiver Power Consumption
1.5
W
Transceiver Power Supply Current
420
mA
Transceiver Power-On Initialization
Time
2000
ms
1200
mVpp
Note
Transceiver
1
Transmitter
Data Input Differential Peak-to-Peak
Voltage Swing
dB
2
10
dB
2
J2 Jitter Tolerance
0.17
UI
J9 Jitter Tolerance
0.29
UI
Differential Input Return Loss
Differential to Common Mode Input
Return Loss
Per IEEE 802.3ba, Section 86A.4.1.1
Receiver
Data Output Differential Peak-to-Peak
Voltage Swing
Output Transition Time 20% to 80%
900
200
mVpp
3
ps
28
Differential Output Return Loss
Per IEEE 802.3ba, Section 86A.4.2.1
dB
2
Common Mode Output Return Loss
Per IEEE 802.3ba, Section 86A.4.2.2
dB
2
62
ps
J2 Jitter Output
0.42
UI
J9 Jitter Output
0.65
UI
Output Total Jitter
Eye Mask Coordinates:
Specification Value
UI; mV
X1, X2; Y1, Y2.
0.29, 0.5; 150, 425.
Notes:
1. “Initialization Time” is the time from when the supply voltages reach and remain above the
minimum “Recommended Operating Conditions” to the time when the module enables TWS access. The
module at that point is fully functional.
2. 10M to 11.1 GHz according to IEEE 802.3ba specification.
3. AC-Coupled with 100Ω differential output impedance.
4. Hit ratio= 5 × 10-5 per sample with mask definition per below figure.
4
UMEC
Photonics Division
30mm
SFP+ Module Electrical Characteristics per SFF-8431 MSA Sec. 3.6.2, Tab.
19.
Parameter
Min
Typical
Max
Unit
Transceiver Power Consumption
0.5
W
Transceiver Power Supply Current
140
mA
Transceiver Power-On Initialization
Time
300
ms
1200
mVpp
Note
Transceiver
1
Transmitter
Data Input Differential Peak-to-Peak
Voltage Swing
300
Differential Input Return Loss
-10
dB
2
mVpp
3
2
Receiver
Data Output Differential Peak-to-Peak
Voltage Swing
500
Differential Output Return Loss
-10
dB
Output Rise & Fall Time (20-80)
28
ps
850
Total Jitter
0.7
Eye Mask Coordinates:
UI
Specification Value
UI; mV
X1, X2; Y1, Y2.
0.35, 0.5; 150, 425.
Notes:
1. “Initialization Time” is the time from when the supply voltages reach and remain above the
minimum “Recommended Operating Conditions” to the time when the module enables TWS access. The
module at that point is fully functional.
2. SDD11/22 differential input and output return loss from 0.05G to 3.9G.
3. AC-Coupled with 100Ω differential output impedance.
4. Hit ratio= 5 × 10-5 per sample with mask definition per below figure.
Fig. Rx Electrical Eye Mask Coordinates (TP4) at Hit ratio 5 x 10-5 hits per sample
4
UMEC
Photonics Division
7. Optical Cable Specification
QSFP+ end to break-out region
Parameter
Specification
Minimum Cable Bending
Radius
30 mm
Notes
Cable Cross-Section
Round Cable with 3-mm in Diameter
Dimension
Cable Cover Type
LSZH
1
Cable Length Tolerance
L-m +100/-0 cm
TBD
Parameter
Specification
Notes
Minimum Cable Bending
Radius
30 mm
SFP+ end to break-out region
Cable Cross-Section
Round Cable with 2-mm in Diameter
Dimension
Cable Cover Type
LSZH
Standard Cable Length
1-m +0.1m / -0m
Notes:
1. Cable cover type standard is LSZH. Other types can be available upon request.
TBD
UMEC
Photonics Division
8. Connector Pad Assignments and Descriptions
QSFP+ Connector per SFF-8436
Pin
Logic
1
Symbol
Description
Plug Sequence
Notes
1
GND
Ground
1
2
CML-I
Tx2n
Transmitter Inverted Data Input
3
3
CML-I
Tx2p
Transmitter Non-Inverted Data Input
3
GND
Ground
1
4
5
CML-I
Tx4n
Transmitter Inverted Data Input
3
6
CML-I
Tx4p
Transmitter Non-Inverted Data Input
3
GND
Ground
1
7
8
LVTTL-I
ModSelL
Module Select
3
9
LVTTL-I
ResetL
Module Reset
3
Vcc Rx
+3.3V Power Supply Receiver
2
10
11
LVCMOS-I/O
SCL
2-wire serial interface clock
3
12
LVCMOS-I/O
SDA
2-wire serial interface data
3
GND
Ground
1
13
14
CML-O
Rx3p
Receiver Non-Inverted Data Output
3
15
CML-O
Rx3n
Receiver Inverted Data Output
3
GND
Ground
1
16
17
CML-O
Rx1p
Receiver Non-Inverted Data Output
3
18
CML-O
Rx1n
Receiver Inverted Data Output
3
1
1
2
2
1
UMEC
Photonics Division
Pin
Logic
Symbol
Description
Plug Sequence
Notes
19
GND
Ground
1
1
20
GND
Ground
1
1
21
CML-O
Rx2n
Receiver Inverted Data Output
3
22
CML-O
Rx2p
Receiver Non-Inverted Data Output
3
GND
Ground
1
23
24
CML-O
Rx4n
Receiver Inverted Data Output
3
25
CML-O
Rx4p
Receiver Non-Inverted Data Output
3
GND
Ground
1
26
1
1
27
LVTTL-O
ModPrsL
Module Present
3
28
LVTTL-O
IntL
Interrupt
3
29
Vcc Tx
+3.3V Power supply transmitter
2
2
30
Vcc1
+3.3V Power supply
2
2
LPMode
Low Power Mode
3
GND
Ground
1
31
LVTTL-I
32
33
CML-I
Tx3p
Transmitter Non-Inverted Data Input
3
34
CML-I
Tx3n
Transmitter Inverted Data Input
3
GND
Ground
1
35
36
CML-I
Tx1p
Transmitter Non-Inverted Data Input
3
37
CML-I
Tx1n
Transmitter Inverted Data Input
3
GND
Ground
1
38
1
1
1
Notes:
1. GND is the symbol for signal and supply (power) common for the QSFP+ module. All are common
within the QSFP+ module and all module voltages are referenced to this potential unless otherwise
noted. Connect these directly to the host board signal-common ground plane.
2. Vcc Rx, Vcc1 and Vcc Tx are the receiver and transmitter power supplies and shall be applied
concurrently. Requirements defined for the host side of the Host Edge Card Connector are listed in
Table 6. Recommended host board power supply filtering is shown in Figure 4. Vcc Rx Vcc1 and Vcc
Tx may be internally connected within the QSFP+ module in any combination. The connector pins are
each rated for a maximum current of 500 mA.
UMEC
Photonics Division
30mm
SFP+ Connector Pin per SFF-8431, SFF-8432
Pin
Logic
1
VeeT
2
Tx_Fault
3
Symbol
Description
Plug Sequence
Notes
Module Transmitter Ground
1
LVTTL-O
Not supported.
3
Tx_Disable
LVTTL-I
Not supported.
3
4
SDA
LVTTL-I/O
2-wire Serial Interface Data Line
2
5
SCL
LVTTL-I/O
2-wire Serial Interface Clock
2
6
Mod_ABS
Module Absent
2
7
RS0
LVTTL-I
Not supported.
3
8
Rx_LOS
LVTTL-O
Not supported.
2
9
RS1
LVTTL-I
Not supported.
3
10
VeeR
Module Receiver Ground
1
11
VeeR
Module Receiver Ground
1
12
RD-
CML-O
Receiver Inverted Data Output
13
RD+
CML-O
Receiver Non-Inverted Data Output
14
VeeR
Module Receiver Ground
1
15
VccR
Module Receiver 3.3 V Supply
4
16
VccT
Module Transmitter 3.3 V Supply
4
17
VeeT
Module Transmitter Ground
1
18
TD+
CML-I
Transmitter Non-Inverted Data Input
19
TD-
CML-I
Transmitter Inverted Data Input
20
VeeT
Module Transmitter Ground
1
UMEC
Photonics Division
Notes:
1. Module circuit ground pins are isolated from the module chassis ground.
2. Pullup to VccHost with 4.7k – 10k Ω.
3. No connection required.
4. Power supply filtering circuit required.
UMEC
Photonics Division
9. Mechanical Design Diagram
Unit: mm
UMEC
Photonics Division
30mm
10.
Handling
Care should be taken to restrict exposure to the conditions defined in the Absolute Maximum
Ratings. Put the product in an even and stable location. If the product falls down or drops, it may
cause an injury or malfunction. The cable must not be subject to extreme bends during installation
or while in operation. If you bend the cable at a radius less than the cable minimum bend radius, then
the cable may get damaged. Don’t twist or pull by force ends of the cable, which might cause
malfunction.
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