MITSUMI
NTSC PAL Converter
Monolithic IC MM1130
NTSC PAL Converter MM1130
Outline
This is an NTSC/PAL signal switching IC.
In PAL conversion mode, a frequency-converted (fc=4.43MHz) NTSC format chroma signal is phase
converted (R-Y axis component is inverted) every 1 hour by shifting burst signal phase by 45°.
Circuit configuration includes VCO (horizontal sync), VCXO (phase conversion carrier), phase conversion
circuit, switches, amps, etc.
Features
1. PAL conversion with phase conversion performed
2. Two possible phase conversion carriers : crystal oscillation and external input
3. No adjustments
4. Four possible mode selections by CTL and EXT pins
Package
SDIP-22A (MM1130XD)
Applications
1. VCR
Block Diagram