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 1037 MUX25 Gbps 2:1 Multiplexer ModuleDescription
The SHF 1037 MUX is a 2:1 multiplexer which operates at data rates up to 25 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 12.5 Gbps andcombined into a 25 Gbps differential serial data stream. A single ended clock signal with afrequency of half the output data rate (nominally 12.5 GHz), drives the SHF 1037 MUX. Alloutputs are DC-coupled ground referenced CML signals with on-chip 50 Ω terminations.
The data and clock 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.

Features••••

GaAs FET technology
Supports output data rates from 2 Gbps up to 25 Gbps
Single ended AC-coupled inputs 500…1000 mVpp
DC coupled complementary outputs

Applications••

Broadband test setups
Telecom transmission systems prototyping

Block diagram

AY

1 – 12.5 Gbps in

2 - 25 Gbps outB
Clock inY

1 – 12.5 GHz in

SHF reserves the right to change specifications and design without notice - SHF 1037 – V001 – 15/Aug/2007

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Preliminary specifications – SHF 1037
Parameter

Unit

Min.

Typ.

Max.

Data rateGbps

112.5

Eye amplitudemV

500

1000

Return loss

dBConditions

Input parameters (AC coupled)t.b.d.

Output parameters (DC coupled)
Data bit rate

Gbps

225

Voltage high level

mV

Voltage low levelmV-300-600

Eye amplitude

mV

300

600

Rise time

pst.b.d.

20…80%, at 25Gbps

Fall time

pst.b.d20…80%, at 25Gbps

RMS jitter

fs

Return loss

dB0800at 25 Gbps, indicatedon oscilloscope-10

Clock parameters
Input frequency

GHz

1

12.5

Input level

mVpp

500

1000

Input return loss

dBt.b.d.

Negative supply voltage

V9V

Negative supply currentmAt.b.d.

Total power dissipation

Wt.b.d.

Power requirements
power supply
included

SHF reserves the right to change specifications and design without notice - SHF 1037 – V001 – 15/Aug/2007

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Output waveforms

25 Gbps non-inverted output

25 Gbps inverted output

10 Gbps non-inverted output

10 Gbps inverted output

Measured using Agilent DCA 86100A, sampling module 86118A [70 GHz], precision timebase module
86107A, + 50GHz cable assembly (0.5m) + 10 dB attenuator

SHF reserves the right to change specifications and design without notice - SHF 1037 – V001 – 15/Aug/2007

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Module outline
7.1

8.6

9.1

2113
7.2

28

YYCl

Clock
BiasB

9.5

A- 5V

19.3
9.3

Ampl.
Adjust+ 5V

36

SHF 1037
2:1 MUX

Data
Bias

19
26.5

9.3

9.5

38

10.3

10.6

18

38

48

26

Ø3(4x)

16.7

Please ensure that adequate coolingof the multiplexer is guaranteed. We
recommend a heat sink with a thermal
resistance of approx. 3 K/W

3363

Bottom view

10.6

66

10.3

PortConnector

A2.92mm female

B2.92mm female

Cl2.92mm female

Y2.92mm female_Y

2.92mm female

All dimensions in mm

SHF reserves the right to change specifications and design without notice - SHF 1037 – V001 – 15/Aug/2007

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