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.
83098HA (OT)/22896HA (OT) No. 5175-1/24
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Overview
The LC72135M is a PLL frequency synthesizer LSI for
tuners in car stereo and similar applications. High-
performance AM/FM tuners can be easily implemented
with this product.
Functions
High-speed programmable dividers
— FMIN: 10 to 160 MHz ..........pulse swallower
(built-in divide-by-two prescaler)
— AMIN: 2 to 40 MHz ..............pulse swallower
0.5 to 10 MHz ...........direct division
IF counter
— HCTR 0.4 to 12 MHz ...........AM/FM IF counter
— LCTR 100 to 500 k Hz.........AM IF counter
Reference frequencies
— Twelve selectable frequencies
(4.5 or 7.2 MHz crystal)
1, 3, 5, 9, 10, 3.125, 6.25, 12.5, 15, 25, 50 and 100 kHz
Phase comparator
— Dead zone control
— Unlock detection circuit
— Deadlock clear circuit
Built-in MOS transistor for forming an active low-pass
filter
I/O ports
— Dedicated output ports: 4
— Input or output ports: 1
— Input ports (LCTR) : 1
— Support clock time base output
Serial data I/O
— Support CCB format communication with the
system controller.
Operating ranges
— Supply voltage........................4.5 to 5.5 V
— Operating temperature............–40 to +85°C
Package
— MFP20
Package Dimensions
unit: mm
3036B-MFP20
SANYO: MFP20
[LC72135M]
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.
CMOS LSI
Ordering number : EN5175A
LC72135M
PLL Frequency Synthesizer for Electronic
Tuning