LC72121V-TLM-E 데이터 시트보기 (PDF) - ON Semiconductor

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LC72121V-TLM-E

PLL Frequency Synthesizers for Electronic Tuning

ON Semiconductor 

Ordering number : EN5815B

LC72121, 72121M,

72121V

CMOS LSI

PLL Frequency Synthesizers

for Electronic Tuning

http://onsemi.com

Overview

The LC72121 and the LC72121M and the LC72121V are high input sensitivity (20 mVrms at 130 MHz) PLL

frequency synthesizers for 3 V systems. These ICs are serial data (CCB) compatible with the LC72131, and

feature the improved input sensitivity and lower spurious radiation (provided by a redesigned ground system)

required in high-performance AM/FM tuners.

Functions

 High-speed programmable divider

— FMIN: 10 to 160 MHz ... Pulse swallower technique

(With built-in divide-by-2 prescaler)

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

0.5 to 10 MHz ... Direct division technique

 IF counter

— IFIN: 0.4 to 15 MHz ... For AM and FM IF counting

 Reference frequency

— One of 12 reference frequencies can be selected

(using a 4.5 or 7.2 MHz crystal element)

1, 3, 5, 9, 10, 3.125, 6.25, 12.5, 15, 25, 50, and 100 kHz

 Phase comparator

— Supports dead zone control.

— Built-in unlocked state detection circuit

— Built-in deadlock clear circuit

 An MOS transistor for an active low-pass filter is built in.

 I/O ports

— Output-only ports: 4 pins

— I/O ports: 2 pins

— Supports the output of a clock time base signal.

 Operating ranges

— Supply voltage: 2.7 to 3.6 V

— Operating temperature: – 40 to 85°C

 Package

— DIP22S, MFP24S, SSOP24

 Comparison with the LC72131/M

— Serial data compatible (CCB)

— Identical pin functions

— Two VSS pins were added.

— The DIP version is pin compatible

(VSS pins were inserted as the DIP22S NC pins.)

— The MFP product provides a modified pin

assignment

(The MFP20 package was replaced by an MFP24

package, and extra VSS pins were added.)

— The SSOP24 is a newly developed package

that has the same pin assignment as the MFP24S

product.

 CCB is ON Semiconductor® ’s original format. All addresses are managed

by ON Semiconductor® for this format.

 CCB is a registered trademark of Semiconductor Components Industries, LLC.

ORDERING INFORMATION

See detailed ordering and shipping information on page 23 of this data sheet.

Semiconductor Components Industries, LLC, 2013

July, 2013

10803AS(OT)/D3098HA(OT)/70398RM(OT) No.5815-1/23

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