TV SIGNAL PROCESSOR FOR MULTI SYSTEM

M61201SP

MITSUBISHI ICs (TV)

MITSUBISHI

ELECTRIC

Notice ; This is not a final specification.

Some parametric limits are subject to change.

PRELIMINARY

13

State Diagram of Auto Colour System

State Diagram of 4.43MHz/3.58MHz Selection

PAL-N

PAL-M

fv =60Hz

Locked in

3.575611MHz

Vertical freq.

Chroma APC

fv =50Hz

Vertical freq.

NTSC-M

fv =60Hz

Locked in

3.579545MHz

Vertical freq.

Chroma APC

State Diagram of South American Colour System

3.58MHz

Colour Killer:ON

(by 1 field)

Locked in

3.58MHz

4.43MHz

Locked in

4.43MHz

Reference Crystal

DDS

Chroma APC

Chroma APC

PAL

NTSC

NTSC

PAL

Colour Killer:OFF

(by1 field)

Colour Killer:ON

(by1 field)

PAL

NO

det.

NTSC

NO

det.

State Diagram of Vertical Frequency Identification

FreeRun

60Hz

50Hz

50Hz

Narrow

60Hz

Narrow

50Hz

W ide

60Hz

W ide

Each State trasfers by 3fields

Sync IN

No Sync during

59.2

to

60.5Hz

55.4

to

63.4Hz

47.9

to

50.5Hz

continuous 3 fields

(DDS function quits when chroma APC is locked in 4.43MHz.)

F reeRUN