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参数资料
| 型号： | THS3201MDREP |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 1 CHANNEL, VIDEO AMPLIFIER, PDSO8 |
| 封装： | SOIC-8 |
| 文件页数： | 11/29页 |
| 文件大小： | 709K |
| 代理商： | THS3201MDREP |
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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 ..................................................................................................................................................... SGLS283B – APRIL 2005 – REVISED JANUARY 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
is biased appropriately to allow for the maximum
output voltage swing. The circuits shown in Figure 58
demonstrate methods to configure an amplifier in a
manner conducive for single-supply operation
Figure 59. Video Distribution Amplifier
Application
The THS3201 can be used as a high-performance
ADC driver in applications such as 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 60, 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 58. 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
require 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 60. Differential ADC Driver Circuit 1
Component video and RGB video signals require fast
transition times and fast settling times to keep high
signal quality. The THS8135, for example, is a
In Figure 61, a transformer is used before two
240-MSPS video DAC and has a transition time
amplifiers to convert the signal to differential. The two
approaching 4 ns. The THS3201 is a perfect
amplifiers then amplify the differential signal. The
candidate
for
interfacing
the
output
of
such
advantage to this approach is each amplifier is
high-performance video components.
required to drive one half the voltage as before. RT is
used to impedance match the transformer.
Copyright 2005–2009, Texas Instruments Incorporated
19
Product Folder Link(s): THS3201-EP
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相关代理商/技术参数 |
参数描述 |
|---|---|
| THS3201MDREP(1) | 制造商:TI 制造商全称:Texas Instruments 功能描述:1.8-GHz LOW-DISTORTION CURRENT-FEEDBACK AMPLIFIER |
| THS3202 | 制造商:TI 制造商全称:Texas Instruments 功能描述:LOW-DISTORTION HIGH-SPEED VOLTAGE FEEDBACK AMPLIFIER |
| THS3202D | 功能描述:高速运算放大器 2GHz Current Feedback Amplifier RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| THS3202DG4 | 功能描述:高速运算放大器 2GHz Current Feedback Amplifier RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| THS3202DGK | 功能描述:高速运算放大器 2GHz Current Feedback Amplifier RoHS:否 制造商:Texas Instruments 通道数量:1 电压增益 dB:116 dB 输入补偿电压:0.5 mV 转换速度:55 V/us 工作电源电压:36 V 电源电流:7.5 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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