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參數資料
| 型號： | TVP5150AM1ZQC |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | COLOR SIGNAL DECODER, PBGA48 |
| 封裝： | GREEN, PLASTIC, BGA-48 |
| 文件頁數： | 2/88頁 |
| 文件大小： | 997K |
| 代理商： | TVP5150AM1ZQC |
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SLES209D – NOVEMBER 2007 – REVISED SEPTEMBER 2010
www.ti.com
3
Functional Description
3.1
Analog Front End
The TVP5150AM1 decoder has an analog input channel that accepts two video inputs that are
ac-coupled. The decoder supports a maximum input voltage range of 0.75 V; therefore, an attenuation of
one-half is needed for most input signals with a peak-to-peak variation of 1.5 V. The nominal parallel
termination before the input to the device is recommended to be 75
Ω. See the application diagram in
Figure 6-1 for the recommended configuration. The two analog input ports can be connected as either of
the following:
Two selectable composite video inputs
One S-video input
An internal clamping circuit restores the sync-tip of the ac-coupled video signal to a fixed dc level.
The programmable gain amplifier (PGA) and the automatic gain control (AGC) algorithm work together to
make sure that the input signal is amplified sufficiently to ensure the proper input range for the ADC.
The ADC has nine bits of resolution and runs at a nominal speed of 27 MHz. The clock input for the ADC
comes from the horizontal PLL.
3.2
Composite Processing Block Diagram
The composite processing block processes NTSC/PAL/SECAM signals into the YCbCr color space.
Figure 3-1 shows the basic architecture of this processing block.
Figure 3-1 shows the luminance/chrominance (Y/C) separation process in the TVP5150AM1 decoder. The
composite video is multiplied by subcarrier signals in the quadrature modulator to generate the color
difference signals Cb and Cr. Cb and Cr are then low pass (LP) filtered to achieve the desired bandwidth
and to reduce crosstalk.
An adaptive four-line comb filter separates CbCr from Y. Chrominance is remodulated through another
quadrature modulator and subtracted from the line-delayed composite video to generate luminance.
Brightness, hue, saturation, and sharpness (using the peaking filter) are programmable via I2C.
The Y/C separation is bypassed for S-video input. For S-video, the remodulation path is disabled.
10
Functional Description
Copyright 2007–2010, Texas Instruments Incorporated
Product Folder Link(s): TVP5150AM1
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PDF描述 |
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| TVP5150AM1PBSRG4 | COLOR SIGNAL DECODER, PQFP32 |
| TVP5150APBSR | COLOR SIGNAL DECODER, PQFP32 |
| TVP5150APBS | COLOR SIGNAL DECODER, PQFP32 |
| TVP5150AZQCR | COLOR SIGNAL DECODER, PBGA48 |
| TVP5150AZQC | COLOR SIGNAL DECODER, PBGA48 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TVP5150AM1ZQCR | 功能描述:視頻 IC Ultralo Pwr NTSC/PAL SECAM Vid Decoder RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TVP5150APBS | 功能描述:視頻 IC Ultralo Pwr NTSC/PAL SECAM Vid Decoder RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TVP5150APBSR | 功能描述:視頻 IC Ultralo Pwr NTSC/PAL SECAM Vid Decoder RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TVP5150APBSRG4 | 功能描述:視頻 IC Ultralo Pwr NTSC/PAL SECAM Video Decoder RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| TVP5150PBS | 功能描述:編碼器、解碼器、復用器和解復用器 VERY LOW POWER VIDEO DECODER RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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