參數(shù)資料
型號： THS8083-95CPZP
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝： POWER, THERMALLY ENHANCED, PLASTIC, TQFP-100
文件頁數(shù)： 59/61頁
文件大?。?/td> 239K
代理商： THS8083-95CPZP
1–1
1 Introduction
The THS8083 is a solution for digitizing video and graphic signals in RGB or YUV/YCbCr color spaces. The device
supports pixel rates up to 80 MHz or 95 MHz, depending on the speed-grade of the device (THS8083 vs
THS8083-95). Therefore, it can be used for PC graphics digitizing up to the VESA standard of XGA (1024 X 768)
resolution at 75 Hz respectively, 85-Hz screen refresh rate, and in video environments for the digitizing of digital TV
formats, including HDTV.
The THS8083 is powered from a single 3.3-V supply and integrates a triple high-performance A/D converter with
clamping functions and variable gain, independently programmable for each channel. Separate clamping ranges are
provided for RGB and YUV operation modes of the device. The clamp timing window is provided by an external pulse
or can be generated internally.
The programmable gain amplifiers consist of coarse and fine gain control blocks. The THS8083 includes slicing
circuitry on the Y or G input to support sync-on-green or sync-on-luminance extraction. The THS8083 further contains
a completely digital PLL block, consisting of phase-frequency detector (PFD), discrete time oscillator (DTO) and
programmable divider to generate the (sampling) clock from the incoming horizontal sync (HS) signal, depending on
the incoming video resolution. Any pixel rate can be generated in the 10-80/95 MHz range. Moreover, the output
phase of the synthesized clock can be controlled with sub-pixel accuracy (31 uniform settings).
Programmable time constants allow the PLL loop bandwidth to be changed by the integrated PLL loop filter.
Alternatively, the user may bypass the PLL when an external pixel clock is available. Even then the DTO synthesized
clock is still available externally and can therefore be used in other parts of the (graphics) system. Extensive PLL and
input monitoring functions are integrated for typical functionality required in LCD/DMD monitor/projection systems
(input format detection, autocalibration).
All programming of the part is done via an industry-standard normal/fast I2C interface, which supports both reading
and writing of register settings. The THS8083 is available in a space-saving TQFP 100-pin PowerPAD
package.
NOTE:THS8083-95 available from 4Q 2000.
1.1
Features
The THS8083 supports the following features:
Analog Channels – Three digitizing channels, each with independently controllable clamp, PGA, and ADC.
–
Clamp: 256-step programmable RGB or YUV clamping during external or internal clamp timing window
–
PGA: 6-bit coarse/5-bit fine programmable gain amplifier
–
ADC: 8 bit 80 MSPS (THS8083) or 95 MSPS (THS8083-95) A/D converter
–
Composite Sync: Integrated sync-on-green/sync-on-luminance extraction
–
Support for ac-coupled input signals
PLL
–
Fully integrated digital PLL (including loop filter) for pixel clock generation
–
10-80 MHz (THS8083) or 10-95 MHz (THS8083-95) pixel clock generation from reference input
–
Adjustable PLL loop bandwidth for minimum jitter or fast acquisition/wide capture range modes
–
5-bit programmable subpixel accuracy positioning of sampling phase
–
Noise gates on HS input to avoid false PLL updating
PowerPAD is a trademark of Texas Instruments.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS8083A 制造商:TI 制造商全稱:Texas Instruments 功能描述:TRIPLE 8 BIT 80 MSPS 3.3V VIDEO AND GRAPHICS
THS8083A95 制造商:TI 制造商全稱:Texas Instruments 功能描述:TRIPLE 8-BIT, 95MSPS, 3.3V VIDEO AND GRAPHICS
THS8083A95PZP 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 Tr 8B 95MSPS 3.3V Vid & Graphics Dig RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel
THS8083APZP 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 Triple 8B 80 MSPS 3.3V YUV/RGB RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel
THS8083APZP 制造商:Texas Instruments 功能描述:8BIT ADC 80MSPS TRIPLE SMD 8083
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