LC72122V Datasheet, PDF (1/22 Pages) Sanyo Semicon Device – PLL Frequency Synthesizer for Portable Equipment Electronic Tuning

Ordering number : ENN6113A
CMOS IC
LC72122V
PLL Frequency Synthesizer
for Portable Equipment Electronic Tuning
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
[LC72122V]
20
11
1
10
0.15
6.7
0.22 0.65 0.43
SANYO: SSOP20
• 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.
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
D0199TH (OT) /O3099TH (OT) /D2598RM (OT) No. 6113-1/22