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参数资料
| 型号： | THS7303PW |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 3 CHANNEL, VIDEO AMPLIFIER, PDSO20 |
| 封装： | GREEN, PLASTIC, TSSOP-20 |
| 文件页数： | 14/60页 |
| 文件大小： | 1980K |
| 代理商： | THS7303PW |
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SLOS479B
– OCTOBER 2005 – REVISED MARCH 2011
APPLICATION INFORMATION
The THS7303 is targeted for video output buffer applications. Although it can be used for numerous other
applications, the needs and requirements of the video signal are the most important design parameters of the
THS7303. Built on the complementary silicon germanium (SiGe) BiCom-3 process, the THS7303 incorporates
many features not typically found in integrated video parts while consuming low power. Each channel
configuration is completely independent of the other channels. This allows for configurations for each channel to
be dictated by the end user and not the device. This results in a highly flexible system for most video systems.
The THS7303 contains the following features:
I2C Interface for easy interfacing to the system.
Single-supply 2.7-V to 5-V operation with low total quiescent current of 16.6 mA with 3.3-V supply and 18.9
mA with 5-V supply.
2:1 input MUX.
Input configuration accepting dc, dc + 135 mV shift, ac bias, or ac sync-tip-clamp selection.
Selectable fifth-order, low-pass filter for DAC reconstruction or ADC image rejection :
– 9-MHz for SDTV NTSC and 480i, PAL/SECAM and 576i, S-Video, and G'B'R' (R'G'B') signals.
– 16-MHz for EDTV 480p and 576p Y’P’BP’R signals, G’B’R’, and VGA signals.
– 35-MHz for HDTV 720p and 1080i Y’P’BP’R signals, G’B’R’, and SVGA/XGA signals.
– Bypass mode for passing HDTV 1080p Y’P’BP’R, G’B’R’, and SXGA/UXGA signals.
Internal fixed gain of 2 V/V (6 dB) buffer that can drive two video lines per channel with dc coupling,
traditional ac coupling, or SAG corrected ac coupling.
Disable mode that reduces quiescent current to as low as 0.1-
μA or a mute function that keeps the THS7303
powered on, but does not allow a signal to pass through.
Signal flow-through configuration using a 20-pin TSSOP package that complies with the latest lead-free
(RoHS compatible) and green manufacturing requirements.
OPERATING VOLTAGE
The THS7303 is designed to operate from 2.7 V to 5 V over a
–40°C to +85°C temperature range. The impact on
performance over the entire temperature range is negligible due to the implementation of thin film resistors and
low-temperature coefficient capacitors.
The power supply pins should have a 0.1-
μF to 0.01-μF capacitor placed as close as possible to these pins.
Failure to do so may result in the THS7303 outputs ringing or oscillating. Additionally, a large capacitor, such as
22
μF to 100 μF, should be placed on the power-supply line to minimize issues with 50/60 Hz line frequencies.
INPUT VOLTAGE
The THS7303 input range allows for an input signal range from ground to (VS+ – 1.4 V). However, as a result of
the internal fixed gain of 2 V/V (6 dB), the output is the limiting factor for the allowable linear input range. For
example, with a 5-V supply, the linear input range is from GND to 3.6 V. Because of the gain, the linear output
range limits the allowable linear input range to be from GND up to 2.5 V.
Copyright
2005–2011, Texas Instruments Incorporated
21
Product Folder Link(s): THS7303
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相关代理商/技术参数 |
参数描述 |
|---|---|
| THS7303PWG4 | 功能描述:视频放大器 3-Ch Low Power Video RoHS:否 制造商:ON Semiconductor 通道数量:4 电源类型: 工作电源电压:3.3 V, 5 V 电源电流: 最小工作温度: 最大工作温度: 封装 / 箱体:TSSOP-14 封装:Reel |
| THS7303PWR | 功能描述:视频放大器 3-Ch Low Power Video RoHS:否 制造商:ON Semiconductor 通道数量:4 电源类型: 工作电源电压:3.3 V, 5 V 电源电流: 最小工作温度: 最大工作温度: 封装 / 箱体:TSSOP-14 封装:Reel |
| THS7303PWRG4 | 功能描述:视频放大器 3-Ch Low Power Video RoHS:否 制造商:ON Semiconductor 通道数量:4 电源类型: 工作电源电压:3.3 V, 5 V 电源电流: 最小工作温度: 最大工作温度: 封装 / 箱体:TSSOP-14 封装:Reel |
| THS730A A2 | 制造商:Tektronix Inc 功能描述:OSCILLOSCOPE DSO/DMM 200MHZ |
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