BenQ 9H.Y1277.000, Product Service Manual

Page: 12 / 96

12
2. Characteristics of inputs/outputs
Signal Parameter Min Type Max
RDATA
GDATA
BDATA
Impedance 75 Ohm
Amplitude 0.7 Volts peak-to-peak
Black pedestal 0 Volts
Pixel Clock 110 M Hz
GDATA_SOG Impedance 75 Ohm
Amplitude 1 Volts peak-to-peak
Video amplitude 0.7 Volts peak-to-peak
Sync amplitude 0.3 Volts peak-to-peak
Black pedestal 0 Volts
Pixel Clock 110 M Hz
HDATA Impedance 1 K ohm
Amplitude, low level 0 0.8 volt
Amplitude, high level 2.5 5 Volt
Frequency 31 82 K Hz
VDATA Impedance 1 K ohm
Amplitude, low level 0 0.8 volt
Amplitude, high level 2.5 5 Volt
Frequency 48 85 Hz
SDADATA Amplitude, low level 0 0.8 volt
Amplitude, high level 2.5 5 Volt
SCLDATA Amplitude, low level 0 0.8 volt
Amplitude, high level 2.5 5 Volt
RXD Amplitude -25 25 Volt
TXD Amplitude -25 25 Volt
CVBS
Luminance
Amplitude, total (video+ sync) 1 Volts peak to peak
Amplitude, video 0.7 Volts peak to peak
Amplitude, sync 0.3 Volts peak to peak
Impedance 75 ohm
CVBS Chroma Amplitude 300 m Volts peak to peak
Impedance 75 ohm
3. Electrical Interface Character
Interface Definition
z
15 pin definition of the mini D-sub male for DDC2B protocol
1
5
6
10
11
15
Pin Definition Pin Definition Pin Definition Pin Definition
1 Red video
(Pr)
2 Green Video
(Y)
3 Blue Video
(Pb)
4 NC
5
NC
6 Red Video Return 7 Green Video
Return
8 Blue Video
Return
9 NC 10
Sync. Return
11 Monitor ID
bit 0
12 Bi-directional
data (SDA)
13 Horizontal Sync 14 Vertical Sync 15 Data clock
(SCL)