Overview
The LC72151V is a PLL frequency synthesizer for car audio systems. It can implement high-performance multifunction tuners such as RDS tuners and features a fast locking circuit.

Functions
• High-speed programmable divider
— FMIN: 10 to 160 MHz: Pulse swallower type
— AMIN: 2 to 40 MHz: Pulse swallower type
    0.5 to 10 MHz: Direct division type
• IF counter
— HCTR: 0.4 to 25 MHz: for FM IF count
— LCTR: 10 to 500 kHz: for AM IF count
   1.0 to 20 × 103 Hz: for frequency
   measurement
• Reference frequency
— One of 11 frequencies may be selected (when a 10.25 or 10.35 MHz crystal is used)
50, 30*, 25, 12.5, 10, 9*, 6.25, 5, 3.125, 3*, 1 kHz
Note: Cannot be used when a 10.25 MHz crystal is used
• Phase comparator
— Supports dead band control
— Built-in unlock detection circuit
— Built-in deadlock clearing circuit
• Built-in amplifier for forming an active low-pass filter
— Built-in operational amplifier for FM high-speed
locking
— Built-in MOS transistor for AM tuning
• Built-in crystal oscillator output buffer
• I/O ports — General-purpose I/O: 2 pins
— Four input ports (maximum)
— Three output ports (maximum)
• Serial data I/O
— Supports communication with the controller in the CCB format.
• Operating ranges
— Supply voltage: 4.5 to 5.5 V (VDD) 7.5 to 9.5 V (AVDD)
— Operating temperature: –40 to +85°C
• Package
— SSOP30