LA1831 Overview
EN«98A JSAYO No.4298A Monolithic Linear IC LA1831,1831M Support for AM Stereo and Electronic Tuning Singie Chip Music C e n t e r l C (AM/FM IF + MPX) for Use in pact Radio/Casette Products Overview The LA1831 is a single chip AM/FM IF and MPX tuner IC that supports electronic tuning. This chip was developed for consumer audio systems and is optimal for auto-seek systems based on IF count methods used together with...
LA1831 Key Features
- Major reduction in required adjustments
- FM detector: No adjustments (ceramic discriminator used)
- MPX VCO: No adjustments (ceramic resonator used)
- Tuning indicator pin provided (can be used as a narrow bandwidth stop signal or a muting drive output): SD output
- Supports IF count methods
- Variable FM stop sensitivity and bandwidth
- Built-in AM local oscillator buffer
- Supports AM low-cut control
- Pin patible with the LA1830 (only the DIP
- Built-in IF output function for AM stereo