GE M
EDICAL
S
YSTEMS
- K
RETZTECHNIK
U
LTRASOUND
D
IRECTION
105844, R
EVISION
1
V
OLUSON
® 730 S
ERVICE
M
ANUAL
3-34
Section 3-6 - System Configuration
3-6-4
Video Specification
Video specifications may be needed to be able to connect laser cameras or other devices to the
Voluson® 730.
Electrical Specifications on VGA Connector
•
Signal Level: 700 mV at 75 Ohm
•
H/V Sync: TTL Level
Table 3-18 Video Specifications VGA Connector
S-Video Output set to:
Timing Parameter
PAL
50Hz
NTSC
60Hz
Visible Resolution
800 x 600
800 x 600
Horizontal Rate [kHz]
47.20
57.10
H Total cycle time [µs]
21.20
17.50
H Sync width [µs]
1.50
1.48
H Back Porch [µs]
2.94
1.84
H Active Video Time [µs]
16.15
13.70
H Front Porch [µs]
0.616
0.512
Hori/-
pos
pos
Vertical Rate [Hz]
75.00
90.00
Vertical Total cycle time [ms]
13.30
11.10
V Sync Width [ms]
0.170
0.140
V Back Porch [ms]
0.276
0.332
V Active Video Time [ms]
12.68
10.48
V Front Porch [ms]
0.174
0.144
Dot Clock [MHz]
49.54
58.39
Table 3-19 Video Specifications for Composite, B/W, S-Video and RGB Connectors
S-Video Output set to:
Timing Parameter
PAL
50Hz
NTSC
60Hz
Visible Resolution
800 x 600
800 x 600
Pixel Clock
17.734475 MHz
= 4* ft.
14.318 MHz
= 4* ft.
Horizontal Total Line
64µs / 1135 Pixel
63.56µs / 910 Pixel
Horizontal Active Display
50.50µs / 902 Pixel
52.50µs / 752 Pixel
Horizontal Front Porch
1.96µs / 35 Pixel
1.62µs / 23 Pixel
Horizontal Sync Width
4.62µs / 82 Pixel
4.68µs / 67 Pixel
Horizontal Back Porch
6.52µs / 116 Pixel
4.76µs / 68 Pixel
Vertical Total Lines
20ms / 312.50 Lines
16.68ms / 262.50 Lines
Vertical Active Lines
18.18ms / 284 Lines
15.22ms / 239.50 Lines
