參數(shù)資料
型號： THS3096PWPRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： 1 CHANNEL, VIDEO AMPLIFIER, PDSO14
封裝： GREEN, PLASTIC, TSSOP-14
文件頁數(shù)： 9/44頁
文件大?。?/td> 2108K
代理商： THS3096PWPRG4
www.ti.com
WIDEBAND, INVERTING OPERATION
_
+
RG
402
0.1
F
6.8
F
VS
15 V
50
Source
+
VI
0.1
F
6.8
F
+
+VS
15 V
RF
806
RM
57.6
49.9
50
LOAD
_
+
49.9
50
Source
VI
+VS
RF
909
RG
909
+VS
2
+VS
2
_
+
402
50
Source
VI
VS
RF
806
+VS
2
+VS
2
57.6
RG
RT
49.9
49.9
50
LOAD
50
LOAD
SINGLE SUPPLY OPERATION
VDSL Driver Circuit
SLOS428B – DECEMBER 2003 – REVISED FEBRUARY 2006
Figure 53 shows the THS3092 in a typical inverting
gain
configuration
where
the
input
and
output
impedances and signal gain from Figure 52 are
retained in an inverting circuit configuration.
Figure 53. Wideband, Inverting Gain
Configuration
Figure 54. DC-Coupled, Single-Supply Operation
The THS3092/6 have the capability to operate from a
The THS3092 and THS3096 have the ability to drive
single
supply
voltage
ranging
from
over 200 mA of current with very high voltage swings.
10 V to 30 V. When operating from a single power
Using these amplifiers coupled with the very high
supply, biasing the input and output at mid-supply
slew rate, low distortion, and low noise required in
allows for the maximum output voltage swing. The
VDSL applications, makes for a perfect match. In
circuits shown in Figure 54 shows inverting and
VDSL systems where the receive signal is critical, the
noninverting amplifiers configured for single supply
use of a low transformer ratio is necessary. With this
operations.
low ratio, the output swing required from the line
driver
amplifier
must
increase,
especially
when
driving the VDSL’s full 14.5-dBm power onto the line.
The line driver's low distortion and noise is critical for
the VDSL as the receive bands are intertwined with
the transmit frequency bands up to the 12-MHz VDSL
limit.
Figure 55 shows a traditional hybrid connection
approach for achieving the 14.5-dBm line power
utilizing a 1:1 transformer. Looking at the input to the
amplifiers shows a low-pass filter consisting of two
separate capacitors to ground. There is an argument
that since the signal coming out of the DAC is
fully-differential then a single capacitor (10 pF in this
case) is perfectly acceptable. The problem with this
idea is that many DACs have common-mode energy
due to images around the sampling frequency which
must be filtered before reaching the amplifier. An
amplifier simply amplifies its input–including the
DAC’s images at high frequencies–and pass it
through to the transformer and ultimately to the line,
possibly causing the system to fail EMC compliance.
A
single
capacitor
does
not
remove
these
17
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS3110 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-NOISE, HIGH-VOLTAGE, CURRENT-FEEDBACK, OPERATIONAL AMPLIFIERS
THS3110CD 功能描述:高速運(yùn)算放大器 Sngl Lo-Noise Hi-Vlt Current-Feedback 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
THS3110CDG4 功能描述:高速運(yùn)算放大器 Sngl Lo-Noise Hi-Vlt Current-Feedback 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
THS3110CDGN 功能描述:高速運(yùn)算放大器 Sngl Lo-Noise Hi-Vlt Current-Feedback 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
THS3110CDGNG4 功能描述:高速運(yùn)算放大器 Sngl Lo-Noise Hi-Vlt Current-Feedback 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
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