MITSMI MM1130XD Datasheet

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°.
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

MITSUMI

NTSC PAL Converter MM1130

Pin Description

Pin no. Pin name Function Internal equivalent circuit diagram

1 chroma IN Inputs chroma signal

2 CTL Mode setting pin

3 C.SYNC IN Inputs composite sync

signal

4 LP2 Time constant connection

pin for H. SYNC APC loop

LPF

5 R H. SYNC APC feedback pin

6 C2 Pin for connecting H.

SYNC APC free run

frequency setting capacitor

7 BGP ADJ Fine tuning of position for

sampling burst signal. Use

open.

MITSUMI

NTSC PAL Converter MM1130

Pin no. Pin name Function Internal equivalent circuit diagram

8 OUT Amp output pin

9 EXT Mode setting pin

10 AMP IN Amp input pin

11 GND1 GND pin

12 CONV.OUT Multiplication circuit output

pin

13 VCC VCC pin.

Inputs 5V.

14 XT1 Carrier (2fsc) oscillation

circuit output pin

15 XT2 Carrier (2fsc) input pin