Overview

LA1800 for single FM / AM radio circuit, FM Part contains mixing, the local oscillator in the release, frequency, squelch, low-pass Filters, etc .; AM part includes high-level detection, in addition to sound Frequency drive stage and amplifier circuit, with a LA1800 circuit and less Number of peripheral components, can produce a complete radio. The circuit workers

For the power supply voltage range of 2.5V ~ 5V.

The circuit is densely packed in a 22-pin dual in-line package.

main feature

● less external components;

● low power consumption, 5.6mA / FM, 3.2mA / AM;

● low operating voltage, Vccmin = 2.5V.