LC72131KMA-AE Datasheet, PDF (1/22 Pages) ON Semiconductor – PLL Frequency Synthesizer

Ordering number : ENA0788A
LC72131K
LC72131KMA
CMOS IC
PLL Frequency Synthesizer
Overview
The LC72131K and LC72131KMA are PLL frequency synthesizers for use in tuners in radio/cassette players.
They allow high-performance AM/FM tuners to be implemented easily.
Features
• High speed programmable dividers
• FMIN: 10 to 160MHz …………………….. pulse swallower (built-in divide-by-two prescaler)
• AMIN: 2 to 40MHz ………………………. pulse swallower
0.5 to 10MHz …………………….. direct division
• IF counter
• IFIN: 0.4 to 12MHz ………………………. AM/FM IF counter
• Reference frequencies
• Twelve selectable frequencies (4.5 or 7.2MHz crystal)
• 100, 50, 25, 15, 12.5, 6.25, 3.125, 10, 9, 5, 3, 1kHz
• 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: 2 • Support clock time base output
• Serial data I/O
• Support CCB format communication with the system controller.
Continued on next page.
• 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.
Semiconductor Components Industries, LLC, 2013
June, 2013
O3112HK 20120919-S00009/51407HKIM 20070328-S00008,S00009 No.A0788-1/22