LA1845N

Ordering number : ENN7185 Monolithic linear IC LA1845N, 1845NM Single-Chip Home Stereo IC Overview The LA1845N/1845NM is designed for use in mini systems and is a single-chip tuner IC that provides electronic tuning functions using SD/IF-count technigue. It incorporates a pilot canceler and an adjustment-free MUX VCO circuit, thus allows additional parts to be reduced. Functions AM: RF amplifier, mixer, oscillator, IF amplifier, detector, AGC, SD, oscillator buffer, IF buffer, stereo IF output, AGC time constant switch FM IF: IF amplifier, quadrature detector, S-meter, SD (signal detection), S-curve detection, IF buffer output MPX: PLL stereo decoder, stereo display, forced monaural, VCO stop, audio muting, adjacent channel interference rejection function, pilot canceler Features Integrated MPX VCO (ceramic resonators are no longer required.) Built-in adjacent channel interference rejection function (114 kHz, 190 kHz) Supports both SD and IF-count techniques ...