LC72131 Datasheet | SANYO

Ordering number : EN4921B CMOS LSI LC72131, 72131M AM/FM PLL Frequency Synthesizer Overview The LC72131 and LC72131M are PLL frequency synthesizers for use in tuners in radio/cassette players. They allow high-performance AM/FM tuners to be implemented easily. Package Dimensions unit: mm 3059-DIP22S [LC72131] Applications PLL frequency synthesizer 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 - IFIN: 0.4 to 12 MHz ...........AM/FM 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 k Hz - Phase parator - 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 munication with the system controller. - Operating...