Datasheet

Application information TSH343
10/17
3 Application information
3.1 Using the TSH343 to drive Y-Pb-Pr video components
Figure 25. Shapes of video signals coming from DACs
Figure 26. TSH343 in single supply for any DAC output
1. See the TSH344 datasheet on st.com for more information. It is possible to drive RGB signals with the
TSH344.
10mV
GND
590ns
(44t)
27ns
(2t)
54ns
(4t)
27ns
(2t)
590ns
(44t)
300mV
300mV
Black (30 IRE)
14.8µs (1100t): 1920*1080i
24.3µs (1800t): 1280*720i
•Fclock=74.25MHz
•t=1/Fclock=13.5ns
Synchronization tip
(0 IRE)
White (100 IRE)
0.030V
0.330V
1.030V
700mV
time
Frequency
Amplitude
30MHz
1Vp-p
Pb,B
video
outputs
LPF
LPF
LPF
Cable
Cable
Cable
+5V
75Ω
75Ω
75Ω
TSH343
SO8
Y,G(+synchro)
DAC
DAC
DAC
Pr,R
G
video
outputs
LPF
LPF
LPF
Cable
Cable
Cable
+5V
75Ω
75Ω
75Ω
TSH344
SO8
R
DAC
DAC
DAC
B
HDTV
Digital synchro