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參數資料
型號: TVP5146M2PFPRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 顏色信號轉換
英文描述: COLOR SIGNAL DECODER, PQFP80
封裝: GREEN, PLASTIC, HTQFP-80
文件頁數: 17/107頁
文件大小: 1427K
代理商: TVP5146M2PFPRG4
Functional Description
9
SLES141B—August 2007
TVP5146M2PFP
2
Functional Description
2.1
Analog Processing and A/D Converters
Figure 21 shows a functional diagram of the analog processors and ADCs. This block provides the analog
interface to all video inputs. It accepts up to 10 inputs and performs source selection, video clamping, video
amplification, A/D conversion, and gain and offset adjustments to center the digitized video signal.
Clamp
PGA
10-Bit
ADC
CH4 A/D
PGA
CH1 A/D
PGA
CH2 A/D
PGA
CH3 A/D
Line-Locked
Sampling Clock
TVP5146M2 Analog Front End
VI_4_A
M
U
X
VI_1_A
VI_1_B
VI_1_C
M
U
X
VI_2_A
VI_2_B
VI_2_C
M
U
X
VI_3_A
VI_3_B
VI_3_C
10-Bit
ADC
10-Bit
ADC
10-Bit
ADC
Clamp
Figure 21. Analog Processors and A/D Converters
2.1.1 Video Input Switch Control
The TVP5146M2 decoder has 4 analog channels that accept up to 10 video inputs. The user can configure
the internal analog video switches via the I2C interface. The 10 analog video inputs can be used for different
input configurations, some of which are:
Up to 10 selectable individual composite video inputs
Up to four selectable S-video inputs
Up to three selectable analog YPbPr/RGB video inputs and one CVBS input
Up to two selectable analog YPbPr/RGB video inputs, two S-video inputs, and two CVBS inputs
The input selection is performed by the input select register at I2C subaddress 00h (see Section 2.11.1).
2.1.2 Analog Input Clamping
An internal clamping circuit restores the ac-coupled video signal to a fixed dc level. The clamping circuit
provides line-by-line restoration of the video sync level to a fixed dc reference voltage. The selection between
bottom and mid clamp is performed automatically by the TVP5146M2 decoder.
相關PDF資料
PDF描述
TVP5146M2PFPG4 COLOR SIGNAL DECODER, PQFP80
TVP5146PFPRG4 COLOR SIGNAL DECODER, PQFP80
TVP5146PFP COLOR SIGNAL DECODER, PQFP80
TVP5146PFPR COLOR SIGNAL DECODER, PQFP80
TVP5146PFPG4 COLOR SIGNAL DECODER, PQFP80
相關代理商/技術參數
參數描述
TVP5146PFP 功能描述:視頻 IC 10B High Qual S-Chip Dig 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
TVP5146PFP 制造商:Texas Instruments 功能描述:IC VIDEO DECODER 10BIT 30MSPS HTQFP-80 制造商:Texas Instruments 功能描述:IC, VIDEO DECODER, 10BIT 30MSPS HTQFP-80
TVP5146PFPG4 制造商:Texas Instruments 功能描述:10BIT VIDEO DECODER SMD HTQFP80
TVP5146PFPR 功能描述:視頻 IC NTSC/PAL/SECAM 4x10B Dig Vid Dec 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
TVP5147EVM 功能描述:視頻 IC 開發工具 TVP5147 Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評估:LMH1251 工作電源電壓:5 V
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