QSFP28 100Gb/s Direct Attached Cable

Intcera’s QSFP28 Direct Attach Cables are compliant with the SFF-8665 specifications. Various choices of wire gauge are available from 30 to 24 AWG with various choices of cable length (up to 5m).

Inquire now

Product description

PRODUCT FEATURES

•Supports 103.125Gb/s and 112.2Gb/s bit rates
•Up to 28.3125Gbps data rate per channel
•Up to 5m transmission
•Compliant with SFF-8636
•Operating temperature: 0~70°C
•Single 3.3V power supply
•Low total system power solution
•Low total system EMI solution
•RoHS compliant

APPLICATIONS

•100G Ethernet
•InfiniBand EDR
•Switches, servers and routers
•Storage area networks

PRODUCT DESCRIPTION

Intcera’s QSFP28 Direct Attach Cables are compliant with the SFF-8665 specifications. Various choices of wire gauge are available from 30 to 24 AWG with various choices of cable length (up to 5m).

Ordering Information

Part Number	Description
QP1H-DP1M30WG	100G QSFP28 DAC passive cable 30AWG 1m
QP1H-DP2M30WG	100G QSFP28 DAC passive cable 30AWG 2m
QP1H-DP3M26WG	100G QSFP28 DAC passive cable 26AWG 3m
QP1H-DP5M26WG	100G QSFP28 DAC passive cable 26AWG 5m

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	ohm
Differential Input Return Loss	SDDXX	<-12+2* SQRT (f) with f in GHz			dB	0.01~4.1GHz
Differential Input Return Loss	SDDXX	<-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
Common Mode Output Return Loss	SCCXX			-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

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

Mechanical Specifications

The connector is compatible with the SFF-8665 specification.

Regulatory Compliance

Item	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 compliant