TSH344 STMicroelectronics, TSH344 Datasheet - Page 10

• Manufacturer Part Number: TSH344
• Description: 340MHz single-supply triple video buffer
• Manufacturer: STMicroelectronics

Specifications of TSH344

• Bandwidth: 340MHz
• Slew Rate: 740V/ms

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