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- 产品描述
- 产品特征
- 产品参数
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QSFP+ Direct Attach Cables are compliant with the SFF-8436 specifications. SFP+ Direct Attach Cables are compliant with the SFF-8431, SFF-8432 and SFF-8472 specifications. Various choices of wire gauge are available from 30 to 24 AWG with various choices of cable length(up to 7m).
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• Compliant with SFF- 8436, SFF-8431, SFF-8432 and SFF-8472
• Up to 10. 3125Gbps data rate per channel
• Up to 7m transmission
• Operating temperature: -40℃ to +80℃
• Single 3.3V power supply
• RoHS compliant
Benefits
•Cost-effective copper solution
•Lowest total system power solution
•Lowest total system EMI solution
•Optimized design for Signal Integrity
Applications
• 40G Ethernet
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Pin Function Definition
QSFP+ Pin Function Definition
Pin
Logic
Symbol
Description
1
GND
Ground
2
CML-I
Tx2n
Transmitter Inverted Data Input
3
CML-I
Tx2p
Transmitter Non-Inverted Data Input
4
GND
Ground
5
CML-I
Tx4n
Transmitter Inverted Data Input
6
CML-I
Tx4p
Transmitter Non-Inverted Data Input
7
GND
Ground
8
LVTTL-I
ModSelL
Module Select
9
LVTTL-I
ResetL
Module Reset
10
Vcc Rx
+3.3V Power Supply Receiver
11
LVCMOS-
I/O
SCL
2-wire serial interface clock
12
LVCMOS-
I/O
SDA
2-wire serial interface data
13
GND
Ground
14
CML-O
Rx3p
Receiver Non-Inverted Data Output
15
CML-O
Rx3n
Receiver Inverted Data Output
16
GND
Ground
17
CML-O
Rx1p
Receiver Non-Inverted Data Output
18
CML-O
Rx1n
Receiver Inverted Data Output
19
GND
Ground
20
GND
Ground
21
CML-O
Rx2n
Receiver Inverted Data Output
22
CML-O
Rx2p
Receiver Non-Inverted Data Output
23
GND
Ground
24
CML-O
Rx4n
Receiver Inverted Data Output
25
CML-O
Rx4p
Receiver Non-Inverted Data Output
26
GND
Ground
27
LVTTL-O
ModPrsL
Module Present
28
LVTTL-O
IntL
Interrupt
29
Vcc Tx
+3.3V Power supply transmitter
30
Vcc1
+3.3V Power supply
31
LVTTL-I
LPMode
Low Power Mode
32
GND
Ground
33
CML-I
Tx3p
Transmitter Non-Inverted Data Input
34
CML-I
Tx3n
Transmitter Inverted Data Input
35
GND
Ground
36
CML-I
Tx1p
Transmitter Non-Inverted Data Input
37
CML-I
Tx1n
Transmitter Inverted Data Input
38
GND
Ground
SFP+ Pin Function Definition
Pin
Logic
Symbol
Description
1
VeeT
Module Transmitter Ground
2
LVTTL-O
Tx_Fault
Module Transmitter Fault
3
LVTTL-I
Tx_Disable
Transmitter disable; Turns off transmitter laser output
4
LVTTL-I/O
SDA
2-wire Serial Interface Data Line (Same as MOD-DEF2 in INF-8074i)
5
LVTTL-I/O
SCL
2-wire Serial Interface Clock (Same as MOD-DEF1 in INF-8074i)
6
Mod_ABS
Module Absent, connected to VeeT or VeeR in the module
7
LVTTL-I
RS0
Rate Select 0, optionally controls SFP+ module receiver
8
LVTTL-O
Rx_LOS
Receiver Loss of Signal Indication (In FC designated as Rx_LOS and in Ethernet designated as Signal Detect)
9
LVTTL-I
RS1
Rate Select 1, optionally controls SFP+ module transmitter
10
VeeR
Module Receiver Ground
11
VeeR
Module Receiver Ground
12
CML-O
RD-
Receiver Inverted Data Output
13
CML-O
RD+
Receiver Non-Inverted Data Output
14
VeeR
Module Receiver Ground
15
VccR
Module Receiver 3.3 V Supply
16
VccT
Module Transmitter 3.3 V Supply
17
VeeT
Module Transmitter Ground
18
CML-I
TD+
Transmitter Non-Inverted Data Input
19
CML-I
TD-
Transmitter Inverted Data Input
20
VeeT
Module Transmitter Ground
General Product Characteristics
Q/4SFP+ DAC Specifications
Number of Lanes
Tx & Rx
Channel Data Rate
10.3125 Gbps
Operating Temperature
0 to + 70°C
Storage Temperature
-40 to + 85°C
Supply Voltage
3.3 V nominal
Electrical Interface
38 pins edge connector(QSFP+)
20 pins edge connector(SFP+)
Management Interface
Serial, I2C
High Speed Characteristics
Parameter
Symbol
Min
Typ
Max
Units
Notes
Differential Impedance
Zd
90
100
110
Ω
Differential Input Return Loss
SDDXX
<-12+2* SQRT (f) with f in GHz
dB
0.01~4.1GHz
<-6.3+13*
Log10/(f/5.5) with f in GHz
dB
4.1~11.1GHz
Common Mode Output Return Loss
SCCXX
< -7+1.6*f with f in GHz
dB
0.01~2.5GHz
-3
dB
2.5~11.1GHz
Difference Waveform Distortion Penalty
dWDPc
6.75
dB
VMA Loss
L
4.4
dB
VMA Loss to Crosstalk Ratio
VCR
32.5
dB
The connector is compatible with the SFF-8436 to SFF-8432 specification.
Length (m)
able AWG
1
30
3
30
5
26
7
26
Regulatory Compliance
Feature
Test Method
Performance
Electrostatic Discharge (ESD) to the Electrical Pins
MIL-STD-883C Method 3015.7
Class 1(>2000 Volts)
Electromagnetic Interference(EMI)
FCC Class B
Compliant with Standards
CENELEC EN55022 Class B
CISPR22 ITE Class B
RF Immunity(RFI)
IEC61000-4-3
Typically Show no Measurable Effect from a 10V/m Field Swept from 80 to 1000MHz
RoHS Compliance
RoHS Directive 2011/65/EU and it's Amendment Directives 6/6
RoHS 6/6 compliant
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