M52342FP Datasheet, PDF (1/19 Pages) Mitsubishi Electric Semiconductor – PLL-SPLIT VIF/SIF IC

M52342FP
PLL-Split VIF/SIF IC
REJ03F0165-0200
Rev.2.00
Jun 14, 2006
Description
The M52342FP is IF signal-processing IC for VCRs and TVs. It enables 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.
Features
• Video detection output is 2 V_P-P. It has built-in EQ AMP.
• The package is a 24-pin flat package, suitable for space saving.
• The video detector uses PLL for full synchronous detection circuit. It produces excellent characteristics of DG, DP,
920 kHz beat, and cross color.
• Dynamic AGC realizes high-speed response with only single filter.
• Video IF and sound IF signal processing are separated from each other. VCO output is used to obtain intercarrier.
This PLL-SPLIT 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.
Application
TV sets, VCR tuners
Recommended Operating Condition
• In case of V_CC and Vreg. OUT short
 Supply voltage range: 4.75 to 5.25 V
 Recommended supply voltage: 5.0 V
• Incase of Vreg. OUT open
 Supply voltage range: 8.5 to 12.5 V
Rev.2.00 Jun 14, 2006 page 1 of 18