LC72147V Datasheet, PDF (1/22 Pages) Sanyo Semicon Device – PLL Frequency Synthesizer for Electronic Tuning in Car Audio Systems

Ordering number : ENN6675
CMOS IC
LC72147V
PLL Frequency Synthesizer for Electronic Tuning
in Car Audio Systems
Overview
The LC72147V is a PLL frequency synthesizer for car
audio systems. It can implement high-performance
multifunction tuners and features a crystal oscillator
circuit that supports AM up-conversion, a fast locking
circuit, an A/D converter, and an LA1783/1750 IF counter
buffer control pin.
Functions
• High-speed programmable divider
— FMIN: 10 to 180 MHz: Pulse swallower type
• IF counter
— HCTR: 0.4 to 25 MHz: Frequency measurement
• Crystal oscillator: One of the following 4 frequencies
may be selected: 10.35, 10.25, 7.2, and 4.5 MHz
Reference frequency
— One of 12 frequencies may be selected (when a 7.2
or 4.5 MHz crystal is used)
100^*1, 50, 30^*2, 25, 12.5, 6.25, 3.125, 10, 9^*2, 5, 3^*2,
1 kHz
Notes: 1. Cannot be used when a 10.35 or 10.25 MHz
crystal is used
2. Cannot be used when a 10.25 MHz crystal
is used
• Phase comparator
— Supports dead band control
— Built-in unlock detection circuit
— Sub-charge pump for fast locking
— Built-in deadlock clearing circuit
• Built-in MOS transistor for forming an active low-pass
filter
• I/O ports — General-purpose I/O: 5 pins
— Output: n-channel: 3 pins, CMOS: 2 pins
— IFBC pin (LA1783/1750 IF counter buffer control
pin)
• Serial data I/O
— Supports communication with the controller in the
CCB format.
• Operating ranges
— Supply voltage (V_DD): 4.5 to 6.5 V
— Built-in regulator voltage (Vreg): 3.0 V (±10%)
— Operating temperature: –40 to +85°C
• Package
— SSOP-24
Package Dimensions
unit: mm
3175A-SSOP24
[LC72147V]
24
13
1
12
0.15
8.0
0.22
0.65
0.43 _{SANYO: SSOP24}
• 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
O1300RM (OT) No. 6675-1/22