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

PRL-220A

Manufacturer Part NumberPRL-220A
DescriptionProduct Description:TTLFreq.Divider(f/2,f/4,f/8,f/16)
ManufacturerPULSE RESEARCH LAB
PRL-220A datasheet
 


Specifications of PRL-220A

Rohs CompliantNALead Free Status / RoHS Statusna
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PRL-220A ÷ ÷ ÷ ÷ 2, ÷ ÷ ÷ ÷ 4 , ÷ ÷ ÷ ÷ 8 and ÷ ÷ ÷ ÷ 16 TTL FREQUENCY DIVIDER
PRL-240A ÷ ÷ ÷ ÷ 2 and ÷ ÷ ÷ ÷ 10 TTL FREQUENCY DIVIDER
PRL-240A
APPLICATIONS
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
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.
PRL-220A
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
Email:
sales@pulseresearchlab.com
www.pulseresearchlab.com

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 ...