M52340SP Datasheet, PDF (28/44 Pages) Mitsubishi Electric Semiconductor – PAL/NTSC SYSTEM SHINGLE-CHIP COLOR TV SIGNAL PROCESSOR

MITSUBISHI ICs (TV)
M52340SP
PAL/NTSC SYSTEM SHINGLE-CHIP COLOR TV SIGNAL PROCESSOR
INPUT SIGNAL PARAMETERS INCLUDING INPUT SIGNALS
1. Input signal name is four alphanumeric characters.
Ex.) S S 4 P Standard Signal 4.43MHz PAL system
Fourth character
Third character
Second character
First character
First character:
Standard=S, Nonstandard=V (Modified parts should be specified.)
Second character: Meaning of signal
Third character:
Frequency of burst and chroma
4(4.433619MHz), 3(3.579545MHz) (In case of "S", SECAM standard signal is applied.)
Fourth character:
Color system
N(NTSC), P(PAL)
2. Structure of input color signal
The following figure shows the structure of color signal.
ec
eb(n)
eb
ec(n)
eb(n+1)
ec(n+1)
H.sync
500mVP-P
1. When S (standard) is used as the first character, the standard color bar signal of each system is
applied. H.sync should be added for input clamp. (The frequency of H.sync is fixed according to the
fourth character. P:50Hz, N:60Hz)
2. Amplitude and frequency of burst are represented as eb. In case of standard signal, the amplitude is
285mVP-P and the frequency is shown by the third character.
3. Amplitude and frequency of chroma are represented as ec. In case of standard signal, the amplitude
is 570mVP-P and the frequency is shown by the third character.
4. The following figure shows the phase of a PAL system signal.
R-Y
ec(n)
eb(n)
B-Y
ec(n+1)
eb(n+1)