LA7530N

IF Signal Processing VIFSIF Circuit for TV/VTR Use

Overview

The is an IC containing the VIF section and SIF section on a single chip in the DIP20 package. The use of the small-sized package serves to make VCR tuner units smaller.

As compared with the LA7530, the LA7530N is provided with 2 pins for IF AGC, permitting higher AGC speed. The LA7530N can substitute for the LA7530, but the LA7530 cannot substitute for the LA7530N. For 9V supply, use the LA7533.

Functions

• VIF section :VIF AMP, VIDEO DET, PEAK IF AGC, B/W NOISE CANCELLER, RF AGC, AFT, VIDEO MUTE.

• SIF section : SIF LIMITER AMP, FM DET, SND MUTE.

Features

• High-gain VIF amplifier requiring no preamplifier.

• Higher AGC speed.

• Adjustment-free FM detector because of ceramic discrimi nator-used quadrature detection.

• Possible to mute video, sound for VCR.

• Small-sized package.

• Minimum number of external parts required.