Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505

Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

ADSANTEC 32.5Gb/s Pre-Emphasis
Advanced Driver/Amplifier with USB Control Interface
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Four pre-emphasis taps with software controlled weight and inversion
Adjustable data output amplitude and eye quality
Output data eye cross point adjustment
Optional main clock frequency ×2 multiplier
Main clock duty cycle indicators located before and after the multiplier
Opposite and parallel adjustment of the main clock and data delays
Alternate clock input
Differential CML input/output data, and clock interfaces
Selectable main or additional clock at the output with adjustable amplitude
Duty cycle adjustment on clock input
GUI software interfaces with onboard USB
DLL is provided for control with example python code

Fig. 1. PreEmphasis Front Panel

Description
The ADSANTEC Pre-Emphasis unit can be used for test applications, design verification, and R&D
environments. The device incorporates the advanced programmable driver amplifier shown in Fig. 1 withbuilt-in four-tap pre-emphasis, external control circuitry in an integrated instrument box with power
supplies, and USB computer interface. All connectors are female SMA except the Data Output pair,which is 2.92 mm (type K). All device I/O’s are CML.
The ADA contains both digital and analog controls to set signed tap weights for the four delayed copiesof the input signal (set apart one clock from each other by a shift register), which are then summed toproduce the output signal. Other features include a limiting amplifier for the input clock, input clock
doubler, duty cycle, peaking and amplitude controls.

Rev. 1.3.2

1July 2019

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505

Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

The back panel of the instrument is shown in Fig 2. The power ON/OFF switch turns the instrument on
and off, and it combines with an LED to indicate the instrument is powered ON. The +5V DC power
supply (included) connects to the male barrel jack. The USB-B connector (with connectivity indicator)
allows connection to a computer for controlling the instrument through a Windows GUI. Alternatively theunit can be controlled through a DLL. An example python code is provided as one way to use the DLL tocontrol the unit. Matlab, Java, and many more programs can use the DLL. See the user guide for moredetails.

Fig. 2. Rear Panel

Rev. 1.3.2

2July 2019

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505

Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

Data Input
Data In can be used single-ended or differentially.

Data Output
Data Out has a data rate up to 32.5Gbps with controllable eye crossing level, peaking, duty cycle, andamplitude control from 0V to 2.5V differentially.

Clock I/O’s
Clock In is normally a half-rate clock input. A full-rate clock can be used for data rates below 17Gbps by
not using the internal clock doubler. Can be used single-ended or differentially.
Clock Out has adjustable amplitude, and peaking controls. Clock Out is meant as a debugging output
and is not a usable clock.

Terminal Functions
TERMINAL
NameType

Clock In

Clock Out

Data Out +Data Out -Data In +Data In -Rev. 1.3.2DESCRIPTION

High-Speed I/O’sFemale SMA connector; differential clock input; AC coupled
CMLwith internal 50Ohm termination; requires a 50Ohm source
input
impedance
Female SMA connector; single-ended clock output; DCCML
coupled with internal 50Ohm termination; requires externaloutput
50Ohm termination
Female 2.92mm connector; single-ended direct data output;
CML
DC coupled with internal 50Ohm termination. Requires
outputexternal 50Ohm termination.
Female 2.92mm connector; single-ended inverted data output;
CML
DC coupled with internal 50Ohm termination; requires
outputexternal 50Ohm termination.
Female SMA connector; single-ended direct data input DCCML
coupled with internal 50Ohm termination. Requires external
input
50Ohm termination.
Female SMA connector; single-ended direct data input; DCCML
coupled with internal 50Ohm termination; requires external
input
50Ohm termination.

3July 2019

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505

Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

Mechanical Dimensions
PARAMETER
LengthWidthHeight

TYP
12510859UNITmmmmmm

COMMENTS

Fig. 3. 1-Tap Output Eye Diagram at 32Gb/s Data Rate

Fig. 4. PAM4 Output Eye Diagram at 25.8Gb/s (51.6Gbaud/s) Data Rate

Rev. 1.3.2

4July 2019

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505

Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

Fig. 5. PAM4 Output Eye Diagram at 28Gb/s (56Gbaud/s) Data Rate

Fig. 6. PAM4 Output Eye Diagram at 32Gb/s (64Gbaud/s) Data Rate

Rev. 1.3.2

5

July 2019Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505

Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

Electrical Characteristics
PARAMETER

MIN

TYP

MAXUNITCOMMENTS

Clock In
Single-ended Swing
Frequency

100
0.5

200

4.0

Delay Adjustment range

500
4.0

mVPP
GHz

8.125

GHz+/- 30

Full rate clock for data
rates from 1 to 8Gbps
Half rate clock for data
rates from 8 to
16.25Gbps

ps

Data In
Single-ended Swing

100

Data Rate

1200500mVPP

32.5Gbps

Single-Ended

Clock Out
Differential Swing
Frequency
Rise/Fall times

10601840mVPP

1.0-17GHz

320

800

mVPP

18-32GHz

132

GHz
ps

TBD
Data Out

Rev. 1.3.2

Data Rate
Differential Swing

1.00

Rise/Fall times

12136

32.5
2500

Gbps
mVPP

Adjustable14

ps

20% - 80%

July 2019

Advanced Science And Novel Technology Company, Inc.
2790 Skypark Drive Suite 112, Torrance, CA 90505

Offices: 310-530-9400 / Fax: 310-530-9402
www.adsantec.com

Revision History
Revision
1.3.2
1.3.1

Date
07-2019
11-2017

1.2.1
1.1.1

03-2017
07-2016

1.0.1

11-2014

Rev. 1.3.2

Changes
Updated Letterhead
Added PAM4 eye diagrams Gbaud rate
Updated Electrical Characteristics
Added PAM4 eye diagrams
Added DLL capability
Added Terminal Functions
Updated Electrical Characteristics
Removed some figures to standardize document
Initial release7

July 2019