LA7555

Ordering number:ENN2927 Monolithic Linear IC LA7555 IF Signal Processing (VIF+SIF) Circuit for TV / VCR Use Overview The LA7555 is a full sync detection method VIF + SIF monolithic linear IC using a PLL. It has excellent 920kHz beat and buzz beat characteristics, making it ideal for use in audio multiplexing and high-quality AV equipment. Functions VIF section · VIF amplifier · Video sync detecton · IF AGC · B/W NC · RG AGC · AFT · VCO · APC DET · Lock DET SIF section · SIF limiter amplifer · FM quadrature detection Audio section · DC attenuator · AF driver Muting · Audio muting (pin 2) · AFT defeat (pin 14) · Audio-Video simultaneous muting (pin 10, 13) Package Dimensions unit:mm 3067A-DIP24S [LA7555] 21.0 24 13 1 0.9 12 (0.71) 1.78 0.48 0.95 Features 24-pin DIP shrink package being the smallest one used for PLL ICs. Excellent 920kHz beat characteristics. Excellent buzz beat characteristics. High-gain VIF amplif...