SHF Communication Technologies AGWilhelm-von-Siemens-Str. 23D • 12277 Berlin • Germany
Phone ++49 30 / 772 05 10 • Fax ++49 30 / 753 10 78
E-Mail: sales@shf.de • Web: http://www.shf.deDatasheet
SHF 408 Mux
100 Gbps Multiplexer ModuleDescription
The SHF 408 MUX is a 2:1 multiplexer which operates at data rates up to 100 Gbps foruse in broadband test setups and telecom transmission systems. Two single ended datachannels are accepted by the multiplexer at a nominal input data rate of 50 Gbps andcombined into a 100 Gbps differential serial data stream. A single ended clock signal witha frequency of half the output data rate (nominally 50 GHz), drives the SHF 408 MUX.A
copy of the divided input clock at a nominal frequency of 25 GHz is provided as an output
signal to drive preceding circuits or pattern generators. Data and clock outputs are DCcoupled ground referenced CML signals with on-chip 50 Ω terminations. The data andclock inputs are AC-coupled and also include 50 Ω terminations.
The multiplexer is supplied as standard with a mains power adaptor and is mounted on an
assembly with two potentiometers. This takes care of the power supply and allows theclock bias and data bias settings to be adjusted.
In addition to the 2:1 multiplexer, we also provide matched pair of driver amplifiers formodulation up to at 100 Gbps. Using our RF/microwave component and expertise, we alsooffer to customize the optical transmitter to generate optical signal formats from 80 to 100Gbps.

Features
••
•
•
•
•

SiGe HBT technology
Supports output data rates from 2 Gbps up to 100 Gbps
Low power consumption: 1 W typ.
Single ended AC-coupled inputs 300…1000 mV
1mm connectors for the 100 Gbps outputs
1.85mm (V compatible) connectors for the data inputs

Applications••

Broadband test setups
Telecom transmission systems prototypingOptions•••

1.85mm male or female (V compatible) connectors at the outputs
Matched driver amplifier pair for E/O conversion up to 100 Gbps using dual-drive Mach
Zehnder modulators
Customization of the optical transmitter

Block diagram

AY

50 Gbps in

100 Gbps outBClock in

50 GHz inYCl/2 out
25 GHz out

SHF reserves the right to change specifications and design without notice - SHF 408 – V002 – 27/Feb/2007

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Preliminary specifications – SHF 408
Parameter

UnitMin.

Typ.

Max.

Data rate

Gbps

250

Eye amplitude

mV300

1000

Return loss

dBConditions

Input parameters (AC coupled)-10

Output parameters
Data bit rate

Gbps

4100

Voltage high level

mV0

Voltage low level

mV

-300

Eye amplitude

mV

300

Rise time

ps

620…80%, at 80Gbps

Fall time

ps

620…80%, at 80Gbps

RMS jitter

fs400

Return loss

dB-10

at 80Gbps, indicatedon oscilloscope

Clock parameters
Input levelmV

Input return lossdB

Clock/2 output level

mV

Clock/2 output return loss

dB500

1000-10300-10Power requirements
Negative supply voltage

V-3.3

Negative supply current

mA

300

Total power dissipation

W1

power supply
included in OptionBA

SHF reserves the right to change specifications and design without notice - SHF 408 – V002 – 27/Feb/2007

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Output waveforms

50 Gbps non-inverted output

50 Gbps inverted output

80 Gbps non-inverted output

80 Gbps inverted output

100 Gbps non-inverted output

100 Gbps inverted output

Measured using Agilent DCA 86100B, sampling module 86118A [70 GHz], precision timebase module86107A, 10 dB attenuator

SHF reserves the right to change specifications and design without notice - SHF 408 – V002 – 27/Feb/2007

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Module outline
Iout

Data Bias(Amplitude adjust)Clock Bias

Vee

11,2 (V (f))

15,2

11,2

7,2

GND

7,2

15,2

11,2

GND

9,6 (K (f))
59,113,228

Y

Y
B
10A

3820

SHF 408

Cl/2Cl40

9,19,118

9,110PortV (f)BV (f)ClV (f)Cl/2K (f)Y

1mm (m), (V (m) optional)Y

1mm (m), (V (m) optional)32

Ø2,7 (x4)34Connector

AAll dimensions in mmAcknowledgment
This project has been co-financed with funds of the EuropeanUnion and the federal state of Berlin - European Fonds for regional
development
SHF reserves the right to change specifications and design without notice - SHF 408 – V002 – 27/Feb/2007

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