LA75503V中文資料三洋數據手冊PDF規(guī)格書

Overview

The LA75503V is an adjustment free VIF/SIF signal processing IC for PAL TV/VCR. It supports 38MHz, 38.9MHz, and 39.5MHz as the IF frequencies, as well as PAL sound multi-system (M/N, B/G, I, D/K), and contains an on-chip sound carrier trap and sound carrier BPF. To adjust the VCO circuit, AFT circuit, and sound filter, 4MHz external crystal or 4MHz external signal is needed.

Features

? Internal VCO adjustment free circuit eliminating need for VCO coil adjustments.

? Internal sound carrier BPF and sound carrier trap enable easy configuration of PAL sound multi-system at low cost.

? Considerably reduces the number of required peripheral parts.

? Use of digital AFT eliminates problem of AFT tolerance.

? Package: SSOP30 (275 mil)

Functions

? VIF amplifier

? VCO adjustment free PLL detection circuit

? Digital AFT circuit

? RF AGC

? Buzz canceller

? Equalizer amplifier

? Internal sound carrier BPF

? Internal sound carrier trap

? PLL-FM detector

? Reference oscillation circuit