Grass Valley TTV 1707 - Manuel (Page 112)

112 Chapter 1 - Specifications
Principal characteristics
B1707M00LD
September 2000
THOMSON TTV1707 / CCU DT500
User manual
1.1.2 - Camera
Standards:
PAL 625/50, Digital link
NTSC 525/60, Digital link
Microlens sensors (PAL or NTSC):
IT 4/3 750 pixels - FIT 4/3 750 pixels (PAL only) - Switchable IT: 16/9 4/3 1000 pixels
Switchable FIT: 16/9 4/3 1000 pixels - switchable FIT: 16/9 4/3 1250 pixels
Optical system:
Prism f/1.4 RGB separator with two motor-driven filter wheels. One wheel fitted with 4
density filters (1=Clear, 2=1/4, 3=1/16, 4=1/64) and a wheel with 4 effect filters (A=Clear,
B=Star 4, C=Strong Fog, D=Light Fog)
Note: The effect wheel and wheel drive are optional.
Fitting the optical system:
Standard bayonet mounting
Video processing:
12-bit digital
Signal-to-noise ratio:
Lens closed, Black level = 70 mV, 1000 kHz PH filters and 5 MHz PB filter, g = 1, gain =
0 dB, Contour OFF, Masking OFF => S/N rms on luminance > 60 dB at Channel Control
Unit digital output (after digital-to-analog conversion)
Sensitivity:
Test conditions: 0 dB, White 90% reflectance. Colour temperature 3200°K,
lens aperture = f/8, whatever the type of CCD=1600 lux
Modulation depth at 400 TV lines (5.1 MHz for 4/3 or 6.8 MHz for 16/9):
for luminance: > 55% (Contour OFF) and 100% after correction (Contour ON).
Superpositions (depending on lens used):
Area 1: 20 ns - Area 2: 30 ns - Area 3: 40 ns
Input signals:
1 microphone input