40G QSFP-SFP Passive Direct Copper Cables

40G QSFP-SFP Passive Direct Copper Cables

1. Applications

  • 40G QSFP+ to 10G SFP+
  • 10G/40Gigabit Ethernet
  • InfiniBand4x SDR, DDR, QDR
  • Switches, Routers, and HBAs
  • Data Centers

2. Features

  • Hybrid cable conforms to the Small Form Factor SFF-8436 and SFF-8431
  • Support for multi-gigabit data rates :1 Gb/s – 10 Gb/s (per channel)
  • Maximum aggregate data rate: 40 Gb/s (4 x 10Gb/s)
  • Hybrid cable link length up to 5m (passive limiting)
  • High-Density QSFP 38-PIN and SFP 20-PIN Connector
  • Power Supply :+3.3V
  • Low power consumption: 0.02 W (typ.)
  • Temperature Range: 0~ 70 °C

3. Description

High Speed 40G QSFP+ to 10G SFP+ Direct Attach Cable copper cable assemblies are a low cost alternative for short reach 4X applications. They are designedto be fully compatible in form factor and optical/electrical connections according to the QSFP Multi-Source Agreement.

QSFP+ connectors provide four channels of data in one pluggable interface. Each channel is capableof transferring data at 10Gbps and supports a total of aggregate 40Gbps as specified for QSFP+. These interconnects have three times the density of SFP+ interconnects(MSA) and have been designed to meet the harshest external operating conditions including temperature, humidityand EMI interference.

QSFP+ cable assemblies are hot swappable and the programmed EEPROM signature enables the host to differentiate between a copper cable assembly and a fiber optic module.

Low power consumption assists in making the passive copper cable assembly an economic solution for withinrack, or rack-to-rack applications.

4. Standard

  • Compliant with electrical standards IEEE 802.3ba
  • Compliant with mechanical standard SFF-8436 and SFF-8431
  • Compliant with EEPROM standard SFF-8472
  • RoHS Compliant

5. Performance Specifications

5.1. Absolute Maximum Ratings

These values represent the damage threshold of the module. Stress in excess of any of the individual Absolute Maximum Ratings can cause immediate catastrophic damage to the module even if all other parameters are within Recommended Operating Conditions.

Table.1 Absolute maximum ratings

Parameter

Symbol

Min

Max

Unit

Maximum Supply Voltage

Vcc

0

3.6

V

Storage Temperature

Ts

-40

85

°C

Relative Humidity

RH

5

95

%

5.2. Recommended Operating Conditions

Table.2 Recommended Operating Conditions

Parameter

Symbol

Min

Typical

Max

Unit

Operating Case Temperature

Standard Tc

0

25

70

°C

Storage Temperature

Ts

0

 

70

°C

Relative Humidity

RH

5

 

95

%

Data Rate

 

 

10/40

 

Gbps

5.3. Product Characteristics

Table.3Product Characteristics

Test Type

Test Item

Target

Reference

 

Differential Impedence 100+/ -10ohm (Rise time of 50 ps (20 %- 80 %)) IEEE Std.802.3ba

Electrical Characteristics

Differential Mode RL Frequency(GHz)0.1-1.01.0-4.1 SDD11 & SDD22(max)-10-(12-2*sqrt(f)) Per table 10 of 1BCable MOL.v 0.68
Differential IL Frequency100MHz200MHz

625MHz

1250MHz

1875MHz

2500MHz

SDD21(min)-8-8

-8.5

-12.1

-14.7

-17

Ref table 43 ofInfinibandArchitecture Spec, V2
NEXT ≥26dB @ 10MHz to 5.0GHz /
Intra-Pair Skew ≤100 ps(TDT Method) Rise time of 35 ps (20 %- 80 %)
Intra-Pair Skew ≤400 ps(TDT Method) Rise time of 35 ps (20%~80 %)

EnvironmentalCharacteristics

 

Operating Temperature -40~85°C Cable operating temp.range
Thermal Shock No evidence of physical damage EIA-364-32 Test
Cyclic Temp. & Humidity No evidence of physical damage EIA-364-31 Method III,Test Cond A
Salt spray 48 hours salt spraying after shell corrosive area less than 5% EIA-364-26
Temperature Life Performance meets the specification requirement EIA-364-17, Method A, Test Cond 3 at 105°±2°C

MechanicalCharacteristics

 

MechanicaIVibration Performance meets the specification requirement EIA-364-28E.11 TC-VII, Test Cond. D 15minutes in X,Y,Z axis.
Cable Flex Performance meets the specification requirement EIA-444-1B
Mechanical Shock Performance meets the specification requirement EIA-364-27B, TG-G. 3 times in 6 directions, 100g, 6ms
Cable plug Insertion 40N Max. Per QSFP MSA Rev 1.0
Cable plug extraction 30N Max. Per QSFP MSA Rev 1.0.
Latch retention force 50N Min. No evidence of physical damage EIA-364-13
Durability 50 Time. No evidence of physical damage EIA-364-09; perform plug&unplug cycles

 

5.4. Pin Definitions

DAC PIN插图 DAC pin 插图2

5.9. Mechanical Dimensions

40G QSFP-SFP 插图

6. Aplication Cautions

6.1. ESD

This transceiver is specified as ESD threshold 1kV for high speed pins and 2kV for all other electrical input pins, tested per MIL-STD-883, Method 3015.4 /JESD22-A114-A (HBM).  However, normal ESD precautions are still required during the handling of this module. This transceiver is shipped in ESD protective packaging. It should be removed from the packaging and handled only in an ESD protected environment.

6.2. LASER SAFTY

This is a Class 1 Laser Product according to IEC 60825-1:1993:+A1:1997+A2:2001.  This product complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated (July 26, 2001)

6.3. Important Notice

DAC 注意事项

Note:

     1)Copper type maximum length recommended at 15 meters;

     2)Various cable lengths available for all types;

     3)Latch/tab available”on top”or”bottom”position.

订单编号插图