Video Input Signal Specifications - NEC LCD1550X Service Manual

1.4

Video input signal specifications

•Types of signals
Video signal Analog RGB video signal 0.7Vp-p, digital signal TMDS
Synchronizing Composite synchronizing signal (TTL level positive/negative polarity)
signal Separate synchronizing signal (TTL level positive/negative polarity)
Composite image synchronizing signal (0.3Vp-p Sync On Green negative polarity)
• Analog input signal rating
Signal name
Horizontal synchronizing signal frequency range
Vertical synchronizing signal frequency range
Video clock frequency
Separate/composite synchronizing signal Hi level
Separate/composite synchronizing signal Lo level
Analog video signal level
• Digital input signal rating
Signal name
Horizontal synchronizing signal frequency range
Vertical synchronizing signal frequency range
Video clock frequency
TMDS signal
Specifications
Min. Typical Max.
30.0 60
50 75.1
25.1 78.8
2.5 5.0
0 0.8
0.6 0.7 1.0
Specifications
Min. Typical Max.
30.0 60
50 75.1
25.1 78.8
DVI 1.0 compatible
1 - 11
Unit Remarks
kHz
Hz
MHz
Volt Impedance 2.2kΩ
Volt
Vp-p
Impedance 75kΩ
Unit Remarks
kHz
Hz
MHz
GND for 50Ω impedance