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參數資料
| 型號： | ADV7191 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs |
| 中文描述： | 視頻編碼器與六10位DAC和DAC的輸出6視頻編碼器 |
| 文件頁數： | 43/69頁 |
| 文件大小： | 628K |
| 代理商： | ADV7191 |
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ADV7190/ADV7191
–43–
REV. 0
OCR07
OCR06
OCR05
OCR04
OCR03
OCR02
OCR01
OCR00
OCR07
ZERO MUST BE
WRITTEN TO
THIS BIT
CLKOUT
PIN CONTROL
OCR01
0
1
ENSABLED
DISABLED
OCR06
–
OCR04
ONE MUST BE
WRITTEN TO
THESE BITS
OCR03
–
OCR02
ZERO MUST BE
WRITTEN TO
THESE BITS
OCR00
ZERO MUST BE
WRITTEN TO
THIS BIT
Figure 87. Output Clock Register (OCR)
BRIGHTNESS DETECT REGISTER
(Address (SR5–SR0) = 34H)
T
he Brightness Detect Register is an 8-bit-wide register used only
to read back data in order to monitor the brightness/darkness of
the incoming video data on a
fi
eld-by-
fi
eld basis. The brightness
information is read from the I
2
C and based on this information,
the color controls or the gamma correction controls may be
adjusted.
The luma data is monitored in the active video area only. The
average brightness I
2
C register is updated on the falling edge of
every
VSYNC
signal.
O
UTPUT CLOCK REGISTER (OCR 9–0)
(Address (SR4–SR0) = 35H)
T
he Output Clock Register is a 8-bit-wide register. Figure 87
shows the various operations under the control of this register.
O
CR BIT DESCRIPTION
Reserved (OCR00)
A Logic 0 must be written to this bit.
CLKOUT Pin Control (OCR01)
This bit enables the CLKOUT pin when set to 1 and, therefore,
outputs a 54 MHz clock generated by the internal PLL. The
PLL and 4
×
Oversampling have to be enabled for this control to
take effect, (MR61 = 0; MR16 = 1).
Reserved (OCR02–03)
A Logic 0 must be written to these bits.
Reserved (OCR04–06)
A Logic 1 must be written to these bits.
Reserved (OCR07)
A Logic 0 must be written to this bit.
相關PDF資料 |
PDF描述 |
|---|---|
| ADV7191KST | Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs |
| ADV7190 | Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs |
| ADV7192KST | Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs |
| ADV7192 | Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs |
| ADV7194KST | Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADV7191KST | 制造商:Analog Devices 功能描述:Video Encoder 6DAC 10-Bit 64-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:54M 4X STD DEF ENCODER NON-MACRO I.C. - Tape and Reel |
| ADV7191KSTZ | 制造商:Analog Devices 功能描述:Video Encoder 6DAC 10-Bit 64-Pin LQFP 制造商:Analog Devices 功能描述:IC VIDEO ENCODER |
| ADV7192 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs |
| ADV7192KST | 制造商:AD 制造商全稱:Analog Devices 功能描述:Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs |
| ADV7194 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling |
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