Proview HV205, Руководство по обслуживанию, Страница: 6 / 46

2005/8/10 V1.0
6
Signal Timing
NTSC : National Television System Committee.
Basic Parameters NTSC M
line/field 525/60
horizontal frequency 15.734 kHz
vertical frequency 60 Hz
color subcarrier freq. 3.579545 MHz
video bandwidth 6.0 MHz
audio carrier 4.5 MHz (FM)
PAL : Phase Alternation Line.
Basic
Parameters
PAL B-G-H PAL I PAL D PAL N PAL M
line/field 625/50 625/50 625/50 625/50 525/60
horizontal
frequency
15.625 kHz 15.625 kHz 15.625 kHz 15.625 kHz 15.734 kHz
vertical
frequency
50 Hz 50 Hz 50 Hz 50 Hz 60 Hz
color
subcarrier
freq.
4.433618 MHz
4.433618
MHz.
4.433618 MHz.
3.582056
MHz.
3.575611 MHz.
video
bandwidth
5.0 MHz 5.5 MHz. 6.0 MHz. 4.2 MHz. 4.2 MHz.
audio
carrier
5.5 MHz. (FM) 6.0 MHz. 6.5 MHz. 4.5 MHz 4.5 MHz.
SECAM: Sequential Couleur Avec Memoire.
Basic Parameters SECAM B-G-H SECAM D-K-K1-L
line/field 625/50 625/50
horizontal frequency 15.625 kHz. 15.625 kHz.
vertical frequency 50 Hz. 50 Hz.
video bandwidth 5.0 MHz 6.0 MHz.
audio carrier 5.5 MHz (AM) 6.5 MHz (AM)
In general, these subsystems are used for broadcast in
B VHF G UHF H UHF I VHF/UHF
D VHF N VHF/UH
F M VHF/UHF K UHF
K1 VHF/UHF L VHF/UH
F
Video Inputs
No Resolution
H-
Freq.(KHz)
V-Freq.(Hz)
Pixel clock
(MHz)
Proposed
1 640 x 480 15.73 60 13.500 NTSC 525i
2 640 x 480 15.63 50 13.500 PAL 625i
3 960 x 483 31.5 60 18.00 SDTV 480i