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LC72146 Datasheet, PDF (1/21 Pages) Sanyo Semicon Device – PLL Frequency Synthesizer for Electronic Tuning | |||
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Ordering number : EN4922C
CMOS LSI
LC72146, 72146M
PLL Frequency Synthesizer
for Electronic Tuning
Overview
The LC72146 is a PLL frequency synthesizer LSI circuit
for electronic tuning in car stereo systems. The LC72146
supports the construction of high-performance, multi-
functional electronic tuning systems for the VHF MW,
and LW bands.
Features
⢠High-speed programmable dividers for
â 10 to 160 MHz on FMIN using pulse swallower
â 0.5 to 40.0 MHz on AMIN using pulse swallower
and direct division
⢠General-purpose counters
â HCTR for 0.4 to 25.0 MHz frequency measurement
â LCTR for 10 to 500 kHz frequency measurement
and 1.0 Hz to 20 Ã 103 kHz period measurement
⢠Reference frequencies: Twelve selectable reference
frequencies (4.5 or 7.2 MHz crystal) 1, 3, 5, 9, 10,
3.125, 6.25, 12.5, 25, 30, 50 and 100 kHz
⢠Phase comparator
â Insensitive band control
â Unlock detection
â Sub-charge pump for high-speed locking
â Deadlock clear circuit
⢠CCB input/output data interface
⢠Power-on reset circuit
⢠Built-in MOS transistor for a low-pass filter
⢠Inputs/outputs (using five general-purpose input/output
ports)
â Maximum of seven inputs (max)
â Maximum of seven outputs (max/four n-channel
open-drain and three CMOS outputs)
â Time-base output for clock (8 Hz)
⢠Operating ranges
â Supply voltage ..................................4.5 to 5.5 V
â Opetating temperature ......................â40 to 85°C
⢠Package
â DIP24S, MFP24S
⢠CCB is a trademark of SANYO ELECTRIC CO., LTD.
⢠CCB is SANYOâs original bus format and all the bus
addresses are controlled by SANYO.
Package Dimensions
unit: mm
3067-DIP24S
[LC72146]
unit: mm
3112-MFP24S
[LC72146M]
SANYO: DIP24S
SANYO: MFP24S
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73096HA (OT)/11095TH (OT) No. 4922-1/21
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