CMOS IC

Ordering number : ENN6113A

D0199TH (OT) /O3099TH (OT) /D2598RM (OT) No. 6113-1/22

SANYO Electric Co.,Ltd. Semiconductor Company

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

PLL Frequency Synthesizer

for Portable Equipment Electronic Tuning

LC72122V

Overview

The LC72122V is a low-voltage (1.8 to 3.6 V) PLL

frequency synthesizer IC that allows portable TV

(VHF)/FM/AM tuners to be constructed easily.

Features

• High-speed programmable frequency divider

— FMIN: 10 to 250 MHz ..Pulse swallower

(divide-by-two prescaler built in)

— AMIN: 2 to 40 MHz ......Pulse swallower

0.5 to 10 MHz ...Direct division

• IF counter

— IFIN: 0.4 to 12 MHz ......For use as an AM/FM IF

counter

• Reference frequency

— Selectable from one of nine frequencies (crystal

oscillator: 75 kHz)

1, 2.5, 3, 5, 3.125, 6.25, 12.5, 15, and 25 kHz

• Phase comparator

— Supports dead zone control

— Built-in unlock detection circuit

— Built-in deadlock clear circuit

— Sub-charge pump for fast frequency locking

• Built-in MOS transistor for forming an active low-pass

filter

• I/O ports

— Dedicated output ports: 3

— I/O ports: 2

— Supports clock time base output

• Serial Data I/O

— Supports CCB format communication with the

system controller.

• Operating ranges

— Supply voltage: 1.8 to 3.6 V

— Operating temperature: –20 to +70°C

• Package

—SSOP20

Package Dimensions

unit: mm

3179A-SSOP20

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.

• CCB is a trademark of SANYO ELECTRIC CO., LTD.

• CCB is SANYO’s original bus format and all the bus

addresses are controlled by SANYO.

110

11

6.7

20

0.65

0.22

0.43

0.15

SANYO: SSOP20

[LC72122V]