SHF Communication Technologies AG
Wilhelm-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 12102 A28 Gbps Bit Pattern Generator

SHF reserves the right to change specifications and design without notice – SHF 12102 A - V003 – 20.10.2009

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Description
The SHF 12102 A is a bit pattern generator plug-in which generates two differential data streams from 3Gbps up to 28 Gbps.
The operating bit rate is determined by the clock frequency (clock frequency equivalent to the nominaldata rate). The two channels can be programmed individually and allow the production of PRBS signals
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with pattern lengths of 2 -1, 2 -1, 2 -1, 2 -1, 2 -1, 2 -1 and 2 -1. User-programmed patterns can also
be loaded into the instrument.
The instrument is ready for a later upgrade to include an additional differential output to deliver 56 Gbps
signals.
The SHF 12102 A is a plug-in which needs to be installed in a SHF 10000 Series mainframe.

Features•••••••••

Broadband operation from 3 to 28 Gbps
Operation by intuitive software interface
High quality output signals
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31
Seven built-in PRBS patterns: 2 -1, 2 -1, 2 -1, 2 -1, 2 -1, 2 -1, 2 -1
Pattern coding and decoding of DQPSK transmission experiments
31
Real-Time Hardware DQPSK precoding up to 2 -1
Up to 128 MBit user pattern
Two independent, programmable frame trigger outputs
Sub-rate clock outputs

SHF reserves the right to change specifications and design without notice – SHF 12102 A - V003 – 20.10.2009

Page 2/5Specifications – SHF 12102 B
Parameter

Unit

Min.

Typ.

Max.

Comment

Data Outputs
50 ΩConnector Type2.92mm female

Bit rateGbps

328Output levelmV

600

Jitter (RMS)

fs1000on scope display,measured at 28 Gbps
with Agilent 86100A with70 GHz sampling headand precision time baseRise/fall timeps12

20%...80%

800

1000

1AC coupled
fixed value

Clock50 ΩConnector type
Clock input

ruggedized 1.85 mm
male connector
ruggedized 1.85 mm
male connector
ruggedized 2.92 mm
male connector

Clock output
Clock/2, Sel. Clock Output
Clock input frequency

GHz328Input levelV0.6

1

Output levelmV

300
300

S11dB

Output frequency

GHzGHzGHz600
450clockclock/2-10323232814clock
clock/2
sel. Clocksel: can be switchedbetween bitrate/N(N=16,32,64,128,256,512)

Frame Trigger Outputs
Connector Type

1250 ΩSMA female

Output level Frame 1mV

800

AC coupled

Output level Frame 2mV3300

LVTTL-Level

For PRBS pattern only
Clock/2 and selectable clock output signals between fin = 3….6 GHz are enabled with an input signal
slew rate = ~10V / ns

SHF reserves the right to change specifications and design without notice – SHF 12102 A - V003 – 20.10.2009

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Patterns
7

Data patterns

User-programmable pattern

2 -1
92 -1
112 -1152 -1
20
2 -1
23
2 -1
31
2 -1
Mbit

128

64 Mbit per channel

SHF reserves the right to change specifications and design without notice – SHF 12102 A - V003 – 20.10.2009

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Typical output waveforms
Measurements performed using Agilent 86100B Oscilloscope with 70 GHz sampling heads (Agilent 86118A)
and precision time base (Agilent 86107A) at the end of a 0.5m microwave cable assembly and a 10dB
attenuator.

Data @ 5Gbps

Data @ 20Gbps

Data @ 25Gbps

Data @ 28Gbps

SHF reserves the right to change specifications and design without notice – SHF 12102 A - V003 – 20.10.2009

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