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LC72140M

PLL Frequency Synthesizers

SANYO -> Panasonic 

Ordering number:ENN4464A

CMOS IC

LC72140, 72140M

PLL Frequency Synthesizers

Overview

The LC72140 and LC72140M are high-performance,

phase-locked loop (PLL) frequency synthesizers that oper-

ate over the VHF, MW and LW wave bands. They feature

excellent frequency tracking, making them ideal as a refer-

ence frequency source for use in AM/FM radio receivers.

The LC72140 and LC72140M operate from a 5V supply.

The LC72140 is available in 24-pin DIPs, and the

LC72140M, in 24-pin MFPs.

Features

• High-speed programmable dividers for

· 10 to 160MHz on FMIN using pulse swallower.

· 0.5 to 40.0MHz on AMIN using pulse swallower and

direct division.

• General-purpose counters (used together with the SD in

IF count mode).

· HCTR for 0.4 to 25.0MHz frequency measurement.

· LCTR for 10 to 500kHz frequency measurement and

1Hz to 20kHz period measurement.

• 4.5 or 7.2MHz crystal.

• Twelve selectable reference frequencies (1, 3, 5, 9, 10,

3.125, 6.25, 12.5, 25, 30, 50 and 100kHz).

• Phase comparator.

· Insensitive band control.

· Unlock detection.

· Sub-charge pump for high-speed locking.

· Deadlock clear circuit.

• C2B input/output data interface.

• Power-ON reset circuit.

• Built-in MOS transistor for a low-pass filter.

• Inputs/outputs (using five general-purpose input/output

ports).

· Maximum of seven inputs.

· Maximum of seven outputs (three n-channel open-drain

and four CMOS outputs).

• 5V supply.

• 24-pin DIP (LC72140) and 24-pin MFP (LC72140M).

Package Dimensions

unit:mm

3067A-DIP24S

[LC72140]

21.0

24

13

1

12

0.9

(0.71)

1.78

0.48

0.95

unit:mm

3112A-MFP24S

24

[LC72140M]

13

SANYO : DIP24S

1

12.5

12

0.15

0.35

1.0 (0.75)

SANYO : MFP24S

Any and all SANYO products described or contained herein do not have specifications that can handle

applications that require extremely high levels of reliability, such as life-support systems, aircraft’s

control systems, or other applications whose failure can be reasonably expected to result in serious

physical and/or material damage. Consult with your SANYO representative nearest you before using

any SANYO products described or contained herein in such applications.

SANYO assumes no responsibility for equipment failures that result from using products at values that

exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other

parameters) listed in products specifications of any and all SANYO products described or contained

herein.

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

71901TN (KT)/50195TH (ID)/80593JN No.4464–1/15

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