MITSUMI
NTSC
PAL Converter MM1130
NTSC
PAL Converter
Monolithic IC 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擄.
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