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

ASNT28_1
DC-32GHz Clock Divide-by-4/1-to-512
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Broadband frequency range from 2KHz –32GHz
Minimal insertion jitter
Fast Rise/Fall Times
50% duty cycle for all divide ratios
Selectable divide output up to 512
Selectable divide-by-1 output for buffering
Second divide-by-4 output
Single positive + 3.3V supplyDescription
The ASNT28_1 divider is a multi-purpose divider for test, prototyping, microwave, andcommunication applications. There are two outputs, a fixed div/4 and a selectable 1-to-512 divide
ratio. All inputs and outputs are AC coupled. The input waveform can be single-ended or differential.
Emerson SMA connectors (MFG PN: 142-0761-881) are installed for inputs and outputs. The
selectable divider output can be operated single-ended or differentially. Power is supplied through atwo pin MOLEX connector (MFG P/N: 39-28-1023).

Applications
The ASNT28_1 divider can be used as a prescaler to extend the useful frequency range for triggering.
The second fixed div/4 output can be used to synchronize other devices. The divider can be used indiv/1 mode to buffer low amplitude signals or provide a differential output from a single-ended signal.
The divider can be used as a prescaler for PLL’s or frequency counters.

Rev. 1.6.2

1June 2021

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

Divide Ratio Control
The Div/(1 to 512) output can be configured to output any divide ratio from 1 to 512. All possible
divide ratios are given by the following equation {Div/output = 2n}, where n is an integer from 0 to256. The Divide ratio control contains 8 switches which represent 8 bits. The LSB starts a SW8 andthe MSB ends at SW1. The binary value of zero gives a decimal n value of 256. The binary value of
1, gives a decimal value n value of 1. Ascending binary values increases the decimal value n. Table 1
shows values of n.
Table 1.
DIP SW #87654321
10000000
01000000
11000000
00100000.
.
.
.
.
11111111
00000000
Rev. 1.6.2

2nDivide Ratio

1234255
256
June 2021

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

Divide /1 Switch
Switching the divide-by-1 switch to the off (div/1) position will override any divide ratio that iscurrently set on the divide ratio control and output a divide-by-1. Switching the div/1 switch to the on(div/2-512) position will turn on the divide ratio control.

Functional BlockRev. 1.6.2

3June 2021

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

MinVEEVCC

TypMax0
3.1

3.3

3.5UnitComments

V

External ground

V

IVCC

1150

mA

Power
OperatingTemperature

3.3

W

-25

50

85°C

Input

Frequency

2.0E-6

Single-ended Swing

50400

32GHz

1000

mV

Peak-to-Peak

Output (Div/4)

Frequency

2.0E-6

Single-ended Swing380

Rise/Fall Times

10

Additive Jitter
Duty Cycle

8GHz

400420mV

Peak-to-Peak

1214

ps

20% to 80%

ps

Peak-to-Peak<145%50%55%

For clock signal

Output (1 to 512)

Frequency
Single-ended Swing
Rise/Fall Times
Additive Jitter
Duty Cycle

Rev. 1.6.2

2.0E-6380
400
1012<145% 50%

32420
1455%

4GHz
mV Peak-to-Peak
ps 20% to 80%
ps Peak-to-Peak
For clock signal

June 2021

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
1.6.2
1.5.2
1.5.1
1.4.11.3.1
1.2.1
1.2
1.1

Date
06-2021
07-2019
04-2019
08-201405-201407-201206-201204-20121.002-2012

Rev. 1.6.2

Changes
Updated for use with the ASNT8110-PQB Divider
Updated Letterhead
Added P/N of connectors to board description
Updated Electrical Characteristics
Updated Power Consumption Information
Revised Formatting
Document filename revised
Modified Style
Small corrections
Initial Release

5June 2021