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參數(shù)資料
| 型號： | TSH344IDT |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3 CHANNEL, VIDEO AMPLIFIER, PDSO8 |
| 封裝： | ROHS COMPLIANT, PLASTIC, SOP-8 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 296K |
| 代理商： | TSH344IDT |
TSH344
Application information
11/17
Figure 27.
Details on one channel of the TSH344
Because of the shape of the signal described in Figure 25, we use a very low output rail
triple high-speed buffer. The TSH344 supplied in 5V single power supply features a low
output rail of 60mV (guaranteed by test) on 150
Ω load. It is dedicated for driving RGB
signals without synchronisation (in the case where the synchronization is provided digitally
on the digital bus).
The gain of the TSH344 (gain=2) is internal which makes it possible to remove two resistors
on the BOM. To avoid any perturbation on matching from the DACs output impedance along
a large band of 30MHz in HD, a discrete reconstruction filtering is implemented after the
driver. This filter is matched on 75
Ω. Note that the TSH344 uses a single supply architecture
and it is not AC output coupled (it cannot sink an output current, therefore it is not possible to
implement an output series capacitor).
video line
+5V
1/3 TSH344
(gain=2)
0V
0Volt
5Volt
Low output Rail :
60mV max. tested
(see datasheet p.3: Vol)
DAC
68pF
470nH
75
Ω
75
Ω
TV
STB
0Volt
5Volt
300mV
1V
0Volt
300mV
1V
+
100F
10nF
External resistor.
Load required by
the DAC output
specification
600mV
2V
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TSH345 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Triple video buffer with selectable filter for HD and SD video applications |
| TSH345ID | 功能描述:視頻 IC TRP VID BFF SLCT FLT HD/SD VID APPS RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TSH345IDT | 功能描述:視頻放大器 Triple video buffer w/filter for HD RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
| TSH345IPT | 功能描述:視頻放大器 Triple video buffer w/filter for HD & SD RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
| TSH346 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Triple video buffer/filter for HD video applications |
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