M52342SP

MITSUBISHI ICs (TV) M52342SP PLL-SPLIT VIF/SIF IC DESCRIPTION The M52342SP is IF signal-processing IC for VCRs and TVs. It enable the PLL detection system despite size as small as that of conventional quasi-synchronous VIF/SIF detector, IF/RF AGC, SIF limiter, FM detector, QIF AGC and EQ AMP. RF AGC DELAY AFT OUT 1 2 3 4 5 6 7 8 9 20 EQ F/B 19 APC FILTER 18 VIDEO OUT 17 Vreg. OUT 16 VCO COIL 15 VCO COIL 14 Vcc 13 QIF OUT 12 AFT SW/NPSW 11 LIMITER IN PIN CONFIGURATION (TOP VIEW) FEATURES RF AGC OUT VIF IN VIF IN GND QIF DET IN IF AGC FILTER NFB Video detection output is 2VP-P. It has 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. It produces excellent characteristics of DG, DP, 920kHz beat, and cross color. Dynamic AGC realizes high speed response with only single filter. Video IF and sound IF signal processings are separated from each other. VCO output is used to obtain intercarrier. This PLLSPLIT method and built-in QIF AGC provide good sound sensitivity and reduces buzz. As AFT output voltage uses the APC output voltage, VCO coil is not used. Audio FM demodulation uses PLL system, so it has wide frequency range with no external parts and no adjustment. M52342SP AUDIO OUT 10 Outline 20P2N-A APPLICATION TV sets, VCR tuners RECOMMENDED OPERATING CONDITION In case of VCC and Vreg. out short Supply voltage range...............................................