PRL-220A PULSE RESEARCH LAB, PRL-220A Datasheet

Product Description:TTLFreq.Divider(f/2,f/4,f/8,f/16)

PRL-220A

Manufacturer Part Number

PRL-220A

Description

Product Description:TTLFreq.Divider(f/2,f/4,f/8,f/16)

Manufacturer

PULSE RESEARCH LAB

Datasheet

1.PRL-220A.pdf (2 pages)

Specifications of PRL-220A

Rohs Compliant

Lead Free Status / RoHS Status

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APPLICATIONS

PRL-220A ÷ ÷ ÷ ÷ 2, ÷ ÷ ÷ ÷ 4 , ÷ ÷ ÷ ÷ 8 and ÷ ÷ ÷ ÷ 16 TTL FREQUENCY DIVIDER

PRL-240A ÷ ÷ ÷ ÷ 2 and ÷ ÷ ÷ ÷ 10 TTL FREQUENCY DIVIDER

DESCRIPTION

The PRL-220A and PRL-240A are self-contained high-speed TTL frequency dividers capable of operating at clock

frequencies in excess of 100 MHz. The PRL-220A has ÷2, ÷4, ÷8 and ÷16 outputs. The PRL-240A has ÷2 and ÷10

outputs. The input resistance of each unit can be selected to be 500Ω or 50Ω by a toggle switch. Functional block

diagrams of the PRL-220A and PRL-240A are shown in Fig.1 and Fig.2, respectively.

The back-matched 50Ω outputs of these frequency dividers can drive long lines and deliver greater than 2.2V into

50Ω loads. Except for the division ratios, the performance characteristics of both units are identical.

The outputs of these frequency dividers are square waves, except for the ÷10 output in the PRL-240A, and they are

useful for testing High and Low pass filters. The divider outputs are useful as 'scope triggers for viewing multi-

frequency signals. The ÷2 signal is often needed as a control signal for split-cycle timing applications.

Each unit is housed in an attractive 1.3 x 2.9 x 2.9-in. extruded aluminum enclosure and has BNC I/O connectors. A

±8.5V AC/DC Adapter is supplied with each unit.

If mounting is desired, a pair of 35001420 mounting brackets can accommodate two PRL modules of the same

length. A number of PRL modules can also share a single ±8.5V AC/DC adaptor using the PRL-730 or PRL-736

voltage distribution module. Please see the Accessories Section for more detail.

•

Count down signal for 'scope trigger

Control Signal for split cycle timing

Counter Output simulation

Square Wave Generator (Except ÷10 Output)

An Essential Lab Tool for Working with

TTL/CMOS Circuits

PRL-240A

FEATURES

•

100 MHz Toggle Frequency

50 Ω Outputs deliver > 2.2V into 50 Ω loads

TTL/CMOS Compatible Input Levels

50 Ω or 500 Ω Input Resistance

BNC I/O Connectors

Ready-to-Use 1.3 x 2.9 x 2.9-in. Module

includes AC/DC Adapter

1234 Francisco Street, Torrance, CA 90502

Tel: 310-515-5330 Fax: 310-515-0068

PRL-220A

Email:

sales@pulseresearchlab.com

www.pulseresearchlab.com

Related parts for PRL-220A

PRL-220A Summary of contents

Page 1

... PRL-220A ÷ ÷ ÷ ÷ 2, ÷ ÷ ÷ ÷ ÷ ÷ ÷ ÷ 8 and ÷ ÷ ÷ ÷ 16 TTL FREQUENCY DIVIDER PRL-240A ÷ ÷ ÷ ÷ 2 and ÷ ÷ ÷ ÷ 10 TTL FREQUENCY DIVIDER PRL-240A APPLICATIONS • Count down signal for 'scope trigger • ...

Page 2

... Propagation Delay to f/n output ↓ PHL t /t Rise/Fall Times (10%-90 Skew between outputs SKEW Max clock frequency F MAX Size Shipping weight, incl. AC adapter Figure 1A PRL-220A Block Diagram C ≤ ≤ ≤ ≤ T ≤ ≤ ≤ ≤ Min 49.5 495 7.5 103 2 -0.5 2.2 4 ...

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