參數(shù)資料
型號(hào): THS3201DGNRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: 1 CHANNEL, VIDEO AMPLIFIER, PDSO8
封裝: GREEN, PLASTIC, MSOP-8
文件頁(yè)數(shù): 9/37頁(yè)
文件大?。?/td> 1116K
代理商: THS3201DGNRG4
SINGLE-SUPPLY OPERATION
+
-
75
75
75
75
75
n Lines
VO(1)
VO(n)
THS3201
75-
Transmission Line
VI
768
768
±7.5 V
ADC DRIVER APPLICATION
_
+
THS3201
49.9
50
Source
VI
+VS
RF
768
RG
768
+VS
2
+VS
2
_
+
THS3201
287
50
Source
VI
VS
RF
576
+VS
2
+VS
2
60.4
RG
50
RT
50
RT
49.9
49.9
VIDEO HDTV DRIVERS
THS3201
47pF
CM
ADC
47pF
1:n
24.9
VS+
RF
VS-
VIN
RG
0.1
F
0.1
F
24.9
ROUT
0.1
F
RT
www.ti.com ............................................................................................................................................................. SLOS416C – JUNE 2003 – REVISED JUNE 2009
The THS3201 has the capability to operate from a
single supply voltage ranging from 6.6 V to 15 V.
When operating from a single power supply, care
must be taken to ensure the input signal and amplifier
are biased appropriately to allow for the maximum
output voltage swing. The circuits shown in Figure 57
demonstrate methods to configure an amplifier in a
manner conducive for single-supply operation.
Figure 58. Video Distribution Amplifier
Application
The THS3201 can be used as a high-performance
ADC driver in applications like radio receiver IF
stages, and test and measurement devices. All
high-performance ADCs have differential inputs. The
THS3201
can
be
used
in
conjunction
with
a
transformer as a drive amplifier in these applications.
and
show
two
different
approaches.
In Figure 59, a transformer is used after the amplifier
to convert the signal to differential. The advantage of
this approach is fewer components are required.
ROUT and RT are required for impedance matching
the transformer.
Figure 57. DC-Coupled Single-Supply Operation
The exceptional bandwidth and slew rate of the
THS3201 matches the demands for professional
video and HDTV. Most commercial HDTV standards
requires a video passband of 30-MHz. To ensure
high signal quality with minimal degradation of
performance, a 0.1-dB gain flatness should be at
least 7x the passband frequency to minimize group
delay
variations—requiring
210-MHz
0.1-dB
frequency flatness from the amplifier. High slew rates
ensure there is minimal distortion of the video signal.
Figure 59. Differential ADC Driver Circuit 1
Component video and RGB video signals require fast
transition times and fast settling times to keep a high
signal quality. The THS8135, for example, is a
In Figure 60, a transformer is used before two
240-MSPS video digital-to-analog converter (DAC)
amplifiers to convert the signal to differential. The two
and has a transition time approaching 4 ns. The
amplifiers then amplify the differential signal. The
THS3201 is a perfect candidate for interfacing the
advantage to this approach is each amplifier is
output of such high-performance video components.
required to drive half the voltage as before. RT is
used to impedance match the transformer.
Copyright 2003–2009, Texas Instruments Incorporated
17
Product Folder Link(s): THS3201
相關(guān)PDF資料
PDF描述
THS3201MDEP 1 CHANNEL, VIDEO AMPLIFIER, PDSO8
THS3201MDGNEP 1 CHANNEL, VIDEO AMPLIFIER, PDSO8
THS3201MDGNREP 1 CHANNEL, VIDEO AMPLIFIER, PDSO8
THS3201MDREP 1 CHANNEL, VIDEO AMPLIFIER, PDSO8
THS3202DRG4 1 CHANNEL, VIDEO AMPLIFIER, PDSO8
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS3201DR 功能描述:高速運(yùn)算放大器 1.8GHz Current Feedback Amplifier RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS3201DRG4 功能描述:高速運(yùn)算放大器 1.8GHz Current Feedback Amplifier RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 電壓增益 dB:116 dB 輸入補(bǔ)償電壓:0.5 mV 轉(zhuǎn)換速度:55 V/us 工作電源電壓:36 V 電源電流:7.5 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
THS3201-EP 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.8-GHz LOW-DISTORTION CURRENT-FEEDBACK AMPLIFIER
THS3201EVM 功能描述:放大器 IC 開(kāi)發(fā)工具 THS3201 Eval Mod RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評(píng)估:IR4302 工作電源電壓:13 V to 23 V
THS3201MDEP(1) 制造商:TI 制造商全稱:Texas Instruments 功能描述:1.8-GHz LOW-DISTORTION CURRENT-FEEDBACK AMPLIFIER