--- 產(chǎn)品詳情 ---
Diff gain (%) | 0.2 |
Output current (Typ) (mA) | 80 |
Vs (Min) (V) | 2.85 |
Vs (Max) (V) | 5.5 |
Diff phase (deg) | 0.3 |
Operating temperature range (C) | -40 to 85 |
Rating | Catalog |
- Three SDTV Video Amplifiers for CVBS, S-Video, Y'P'BP'R 480i/576i, Y'U'V', or G'B'R' (R'G'B')
- Integrated Low-Pass Filters:
- 5th-Order, 8.5-MHz (-3dB) Butterworth
- -1dB Passband Bandwidth at 7 MHz
- 47 dB Attenuation at 27 MHz
- 5th-Order, 8.5-MHz (-3dB) Butterworth
- Versatile Input Biasing:
- DC-Coupled with 230-mV Output Shift
- AC-Coupled with Sync-Tip Clamp
- Allows AC-Coupled With DC-Biasing
- Built-in 5.2 V/V Gain (14.3 dB)
- +3-V to +5-V Single Supply Operation
- Rail-to-Rail Output:
- Output Swings Within 100 mV of the Rails, Allowing AC- or DC-Output Coupling
- Supports Driving Two Lines per Channel
- Low Total Quiescent Current: 15.6 mA at 3.3 V
- Low Differential Gain/Phase of 0.2%/0.3°
- Lead-free, Green SOIC-8 Package
- APPLICATIONS
- Set Top Box Output Video Buffering
- PVR/DVDR Output Buffering
- USB/Portable Low-Power Video Buffering
DaVinci is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
Fabricated using the revolutionary complementary silicon-sermanium (SiGe) BiCom3 process, the THS7315 is a low-power, single-supply, 3-V to 5-V 3-channel integrated video buffer. It incorporates a 5th-order Butterworth filter that is useful as a digital-to-analog converter (DAC) reconstruction filter or an analog-to-digital converter (ADC) anti-aliasing filter. The 8.5-MHz filter is a perfect choice for SDTV video, including Composite Video Baseband Signals (CVBS), S-Video, Y?U?V?, G?B?R? (R?G?B?), and Y?P?BP?R 480i/576i.
The THS7315 inputs can be either ac- or dc-coupled. The 230-mV output level shift allows for a full sync dynamic range at the output with 0 V input. The ac-coupled modes include a transparent sync-tip clamp option for CVBS, Y', and G'B'R' signals with bottom-level sync. AC-coupled biasing for C'/P'B/P'R channels can easily be achieved by adding an external resistor to VS+.
The THS7315 is the perfect choice for all output buffer applications. Its rail-to-rail output stage with 5.2-V/V gain allows for both ac and dc line driving, making it a perfect choice for DaVinci processors. The ability for each channel to drive two video lines, or 75- loading, allows for maximum flexibility as a video line driver. The 15.6-mA quiescent current at 3.3 V also makes it an excellent choice for USB-powered, portable, or other power-sensitive video applications
The THS7315 is available in a small SOIC-8 package that is lead-free and compliant with green requirements.
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