參數(shù)資料
型號： TVP5157PNP
廠商： TEXAS INSTRUMENTS INC
元件分類： 顏色信號轉(zhuǎn)換
英文描述： COLOR SIGNAL DECODER, PQFP128
封裝： GREEN, PLASTIC, HTQFP-128
文件頁數(shù)： 45/108頁
文件大?。?/td> 1395K
代理商： TVP5157PNP
VSSA
27-MHz
Crystal
27-MHz CLK
Output to other TVP5158
XTAL_IN pin
27-MHz CLK
Output to other TVP5158
XTAL_IN pin
0 W
SLES243E
– JULY 2009 – REVISED MARCH 2011
3.11 Clock Circuits
An analog clock multiplier PLL is used to generate a system clock from an external 27-MHz crystal
(fundamental resonant frequency) or external clock reference input. A crystal can be connected across
terminals 99 (XTAL_IN) and 101 (XTAL_OUT), or a 1.8-V external clock input can be connected to
terminal 99. Four horizontal PLLs generate the line-locked sample clock for each video decoder core from
the system clock. Four color PLLs generate the color subcarrier frequency for each video decoder core
from the corresponding line-locked clock. Four vertical PLLs generate the field/frame sync for each video
decoder core. A frequency synthesizer generates the 32.768-MHz audio oversampling clock for each
analog audio input from the system clock.
Figure 3-21 shows the reference clock configurations. For the example crystal circuit shown, the external
capacitors must have the following relationship:
CL1 = CL2 = 2CL – CSTRAY
Where CSTRAY is the terminal capacitance with respect to ground, and CL is the crystal load capacitance
specified by the crystal manufacturer.
Figure 3-21. Clock and Crystal Connectivity
Copyright
2009–2011, Texas Instruments Incorporated
Functional Description
41
Product Folder Link(s): TVP5158 TVP5157 TVP5156
相關(guān)PDF資料
PDF描述
TVP5156PNPR COLOR SIGNAL DECODER, PQFP128
TVP5156PNP COLOR SIGNAL DECODER, PQFP128
TVP5158IPNPR COLOR SIGNAL DECODER, PQFP128
TVP5158IPNP COLOR SIGNAL DECODER, PQFP128
TVP5158PNPR COLOR SIGNAL DECODER, PQFP128
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TVP5157PNPR 功能描述:視頻 IC 4Ch NTSC/PAL 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
TVP5158 制造商:TI 制造商全稱:Texas Instruments 功能描述:With Independent Scalers, Noise Reduction, Auto Contrast, and Flexible Output Formatter for Security and Other Multi-Channel Video Applications
TVP5158EVM 功能描述:視頻 IC 開發(fā)工具 TVP5158 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評估:LMH1251 工作電源電壓:5 V
TVP5158IPNP 功能描述:視頻 IC 4Ch NTSC/PAL 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
TVP5158IPNPQ1 制造商:TI 制造商全稱:Texas Instruments 功能描述:With Independent Scalers, Noise Reduction, Auto Contrast, and Flexible Output Formatter for Security and Other Multi-Channel Video Applications
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