Ccd Image Sensor - JVC GR-DVA10 Technical Manual

2.2.2 CCD Image Sensor

Main difference in CCD adopted with DVC and VHS-C.
N T S C : effective 630,000 (I m a g e 3 4 0,000) pixels
N T S C : effective250,000 pixels
Horizontal drive
frequency
960H-type 1/4" C C D (w/ EIS area) for DVC
( G R - D V X 7 , G R - D V F 3 1 / D V L 4 0 , G R - D V L 3 0 0 e t c . )
33% EIS Area
Picture Area
711(H)
962(H)
13.5MHz
18MHz
510H-type/760H-type 1/4" CCD for VHS-C
510(H)
9.54545MHz
DVC
NTSC
18MHz: 1144fH
Picture area:13.5MHz: 858fH
13.5MHz = 18MHz × 3/4
13.5MHz: DVC format Y signal sampling frequency
f = 15.734264KHz (PAL: 15.625KHz): Horizontal sync frequency
H
f = 3.579545MHz (PAL: 4.433618MHz): Color sub-carrier frequency
SC
Fig. 2-2-2 Pixel number and pixel size of various CCD
PAL: effective 740,000 (Im a g e 4 0 0,000) pixels
33% EIS Area
Picture Area
(Pixel)
3.80 µ m
PAL: effective 290,000 pixels
(Pixel)
7.15 µ m
PAL (760H-type): effective 440,000 pixels
PAL NTSC
9.54545MHz
910fH × 2/3
910fH = 4 × fsc
2-3
702(H)
962(H)
13.5MHz
18MHz
500(H)
9.45833MHz
752(H)
14.1875MHz
VHS-C
PAL
9.45833MHz
908fH × 2/3
(Pixel)
3.85 µ m
(Pixel)
7.3 µ m
(Pixel)
4.85 µ m
PAL (760H)
14.1875MHz
908fH