The LC7218 is a 5V CMOS phase-locked loop (PLL) frequency synthesizer IC designed by Sanyo in a 24-pin dual in-line package (DIP-24). It is optimized for electronic tuning in AM/FM radio and audio-visual (AV) tuner applications, supporting a frequency range up to 160 MHz.
Key Features
- Frequency Range: 0.5 MHz to 160 MHz via built-in programmable dividers (FMIN and AMIN pins).
- Reference Frequencies: Ten selectable reference frequencies (including 1, 5, 9, 10, 3.125, and 6.25 kHz).
- Built-in Functions: Unlock detection circuits, general-purpose counter, and reference frequency circuits.
- I/O Ports: 7 output ports (2 complementary, 5 open-drain) and 2 input ports.
- Operating Voltage: Standard 5V DC (4.5V to 6.5V limits).
- Temperature Range: Industrial grade (-40°C to +85°C).
