Description

The M52760SP is an IF signal-processing IC designed for VCRs and TVs. It enables the PLL detection system despite its small size compared to conventional quasi-synchronous VIF/SIF detectors. The IC includes IF/RF AGC, SIF limiter, FM detector, and EQ AMP.

Specifications and features

- Video detection output is 2VP-P and has a built-in EQ AMP. - The package is a 20-pin shrink-DIP, suitable for space-saving. - The video detector uses PLL for full synchronous detection circuit, resulting in excellent characteristics of DG, DP, 920kHz beat, and cross color. - Dynamic AGC provides high-speed response with a single filter. - Video IF and sound IF signal processings are separated from each other, using VCO output to obtain intercarrier. This PLL-SPLIT method offers good sound sensitivity and reduces buzz. - AFT output voltage uses the APC output voltage, eliminating the need for VCO coil. - Audio FM demodulation uses a PLL system, providing a wide frequency range without requiring external parts or adjustment. - QIF AMP has a fixed gain and good characteristics for NICAM.

Application Scenarios

This IC is commonly used in TV sets and VCR tuners.

Comparison

- Compact size for space-saving applications. - Excellent characteristics in signal processing, including DG, DP, 920kHz beat, and cross color. - High-speed response with dynamic AGC. - Separate video and sound processing for improved performance. - Wide frequency range in audio FM demodulation without external parts or adjustment. - Fixed gain and good characteristics for NICAM.

- No specific disadvantages mentioned in the product description.