M52390FP

MITSUBISHI ICs (AV COMMON) M52390FP NTSC/PAL ENCODER DESCRIPTION The M52390FP is a single-chip semiconductor integrated circuit which has a function to convert R/G/B signal to NTSC/PAL composite video signal and the superimpose function. PIN CONFIGURATION (TOP VIEW) GND C.Sync IN HHK 3fsc TRAP CLAMP B VCXO APC FILTER VIDEO IN 1 2 3 20 LPF fc CONT. 19 COLOR CONT. 18 R IN 17 G IN 16 B IN 15 Y OUT 14 Y IN 13 Vreg 12 Ys IN 11 VCC FEATURES RGB encode LPF for chroma difference signal is built-in. Cutoff frequency control is possible by connecting a resistor externally. Because VCA circuit is built-in, gain control at chroma block is possible. Carrier leak is on a low level because of built-in high-precision modulation circuit and clamp circuit. Burst signal and sync signal are generated within the IC. Superimpose function Ys IN (control input) is used for switching 2 input signals, VIDEO IN and RGB IN. Because high-speed analog switch is built-in, even microscopic characters can be inserted. Built-in an APC circuit to adjust tint of the parent picture (VIDEO IN) and the RGB encode signal automatically. Overall functions A drive circuit (75Ω) can be configured with one transistor by outputting the video output signal at 2VP-P. This device can be used for both NTSC system and PAL system. CLAMP R 4 5 6 7 8 9 M52390FP VIDEO OUT 10 Outline 20P2N-A (Lead pitch:1.27mm) APPLICATION TV, VCR, monitor, and other AV equipments RECOMMENDED OPERATING CONDITION Supply voltage...