2-3
2.2.2 CCD Image Sensor
Main difference in CCD adopted with DVC and VHS-C.
(Pixel)
7.15
µ
m
5.55
µ
m
(Pixel)
3.80
µ
m
4.15
µ
m
33% EIS Area
962(H)
711(H)
485(V)
654(V)
Picture Area
13.5MHz
18MHz
510(H)
492(V)
9.54545MHz
(Pixel)
7.3
µ
m
4.7
µ
m
500(H)
582(V)
9.45833MHz
(Pixel)
4.85
µ
m
4.65
µ
m
752(H)
582(V)
14.1875MHz
(Pixel)
3.85
µ
m
3.50
µ
m
33% EIS Area
962(H)
702(H)
575(V)
774(V)
Picture Area
13.5MHz
18MHz
NTSC: effective 630,000 (Image 340,000) pixels PAL: effective 740,000 (Image 400,000) pixels
NTSC: effective250,000 pixels PAL: effective 290,000 pixels
PAL (760H-type): effective 440,000 pixels
510H-type/760H-type 1/4" CCD for VHS-C
960H-type 1/4" CCD (w/ EIS area) for DVC
(GR-DVX7, GR-DVF31/DVL40, GR-DVL300 etc.)
NTSC PAL NTSC PAL PAL (760H)
9.54545MHz
910fH
×
2/3
910fH = 4
×
fsc
Horizontal drive
frequency
9.45833MHz
908fH
×
2/3
14.1875MHz
908fH
DVC VHS-C
18MHz: 1144fH
Picture area:13.5MHz: 858fH
13.5MHz = 18MHz
×
3/4
13.5MHz: DVC format Y signal sampling frequency
f
H
= 15.734264KHz (PAL: 15.625KHz): Horizontal sync frequency
f
SC
= 3.579545MHz (PAL: 4.433618MHz): Color sub-carrier frequency
Fig. 2-2-2 Pixel number and pixel size of various CCD