100G QSFP28 Direct Attach Cable (DAC) JHA-QSFP28-100G-PCU
QSFP28 Direct Attach Cables are compliant with the SFF-8665 specifications. Various choices of wire gauge are available from 30 to 26 AWG with various choices of cable length (up to 5m).
General Description QSFP28 Direct Attach Cables are compliant with the SFF-8665 specifications. Various choices of wire gauge are available from 30 to 26 AWG with various choices of cable length (up to 5m). Features ◊ Compliant with SFF- 8665 ◊ Up to 28.3125Gbps data rate per channel ◊ Up to 5m transmission ◊ Operating temperature: 0~70℃ ◊ 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 ◊ 100G Ethernet Specification: 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 General Product Characteristics QSFP+ DAC Specifications Number of Lanes Tx & Rx Channel Data Rate 28.3125 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 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 4.1~19GHz Common Mode Output Return Loss SCCXX < -7+1.6*f with f in GHz dB 0.01~12.89GHz -3 dB 12.89~19GHz Difference Waveform Distortion Penalty dWDPc 6.75 dB VMA Loss L 4.4 dB VMA Loss to Crosstalk Ratio VCR 32.5 dB Mechanical Specifications The connector is compatible with the SFF-8665 specificatio Length (m) Cable AWG 1 30 2 30 3 30 5 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