Datasheet Summary
Ordering number : EN2887C
Monolithic Linear IC
AM / FM-IF / MPX Tuner System for Radio-Casette Recorders, Music Centers
Overview
The LA1805 is a characteristics-improved version of the LA1810, with the same pin assignment and package as those of the LA1810. Improvements are made on the following point:
- Separation (35dB→48dB) and its dependence on freerunning frequency (Sep
- fF Characteristic on page 5).
- FM main distortion (0.8%→0.45%).
- AM detection output (approximately 5dB increased). The constants on five external parts are changed as shown on page 11.
Functions
- FM-IF: IF amp, quadrature detector, soft muting, tuning indicator.
- MPX: PLL stereo decoder,...