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TSH345 Datasheet(PDF) 6 Page - STMicroelectronics

Part # TSH345
Description  Triple video buffer with selectable filter for HD and SD video applications
PDF  14 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TSH345 Datasheet(HTML) 6 Page - STMicroelectronics

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Power supply considerations
TSH345
6/14
3
Power supply considerations
Correct power supply bypassing is very important for optimizing performance in low and
high-frequency ranges. Bypass capacitors should be placed as close as possible to the IC
pin (pin 4) to improve high-frequency bypassing. A capacitor (CLF) greater than 100 µF is
necessary to improve the PSRR in low frequencies. For better quality bypassing, you can
add a capacitor of 470 nF (CHF), also placed as close as possible to the IC pin, to improve
the PSRR in the higher frequencies.
Figure 1.
Circuit for power supply bypassing
+VCC
CLF
+
CHF
R in
G in
B in
TSH345
R out
G out
B out
4
5



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