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參數(shù)資料
| 型號： | LM1276 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs |
| 中文描述： | 150 MHz的I2C兼容的RGB前置放大器512個字符OSD光盤，512個字符RAM和4 DAC的內(nèi)置 |
| 文件頁數(shù)： | 43/50頁 |
| 文件大小： | 2597K |
| 代理商： | LM1276 |
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Auto Size Registers
(Continued)
Bits 10–0
This is an 11-bit wide register that records the lowest measured value of the vertical back porch in
terms of horizontal line periods during video detect. When no video is detected, the sum of this
register and the vertical flyback or sync should be within 1 line of the total number of lines per
field. Once measurement is completed and the auto size enable bit has cleared itself back to 0, the
measured data is ready to be read by the microcontroller. Reading this register before that may
give erroneous results. This register resets to default values, ready to record new measured values
when the auto size enable bit is set again.
Previous Field Vertical Front Porch Duration:
PREV_V_BP1 (0x858C)
Reserved
RSV
RSV
PREV_V_BP0 (0x858B)
Previous Vertical Front Porch Duration
VFP PREV[10:0]
RSV
RSV
RSV
Bits 10–0
This is an 11-bit wide register that retains the previous lowest measured value of the vertical front
porch during video detect in horizontal line periods from the previous field. It is used when interlace
mode is present, in order to accurately determine the correct parameter value for the frame. When
no video is detected, this register should return a value of zero. Reading this register within less
than one complete field period after the Video Detect Reset may give erroneous results. This
register resets to zero after the Video Detect Reset has been written.
Previous Field Vertical Sync Duration:
V_SYN_PREV (0x858D)
Previous Vertical Sync Duration
VSYNC PREV[7:0]
Bits 7–0
This is an 8-bit wide register that records the previous measured value of the vertical sync during
video detect in horizontal line periods from the previous field. It is used when interlace mode is
present, in order to accurately determine the correct parameter value for the frame. Reading this
register within less than one complete field period after the Video Detect Reset may give
erroneous results. This register resets to zero after the Video Detect Reset has been written.
Previous Vertical Back Porch Duration:
PREV_V_BP1 (0x858F)
Reserved
RSV
RSV
PREV_V_BP0 (0x858E)
Previous Vertical Back Porch Duration
VBP PREV[10:0]
RSV
RSV
RSV
Bits 10–0
This is an 11-bit wide register that records the previous lowest measured value of the vertical back
porch during video detect in horizontal line periods from the previous field. It is used when interlace
mode is present, in order to accurately determine the correct parameter value for the frame. When
no video is detected, this sum of this register and the VSYNC should be with 1 line of the total
number of lines per field. Reading this register within less than one complete field period after the
Video Detect Reset may give erroneous results. This register resets to zero after the Video Detect
Reset has been written.
HiBrite Control Register:
HB CONTROL (0x8590)
FSHEN
INTR_EN
LIMIT
WHDIS
RSV
RSV
RSV
RSV
Bits 3–0
Bit 4
Reserved and should be set to zero.
This bit must be low for the device to display HiBrite Software driven windows. This bit must be set
high for Full Screen HiBrite by the MCU.
Bits 4 and 5 must be both high for Full Screen
HiBrite.
This bit when set high will enable the Full Screen Hi-Brite feature. This bit can be used by the
MCU to highlight the entire screen without the use of the HiBrite software.
This bit must be set to 1 at all times for proper color bar communication.
Bit 5
Bit 6
L
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| LM1276AAA | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs |
| LM1279 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:110 MHz RGB Video Amplifier System with OSD |
| LM12791DL WAF | 制造商:Texas Instruments 功能描述: |
| LM1279A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LM1279AN | 功能描述:IC AMP RGB VIDEO SYSTEM 20-DIP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 應(yīng)用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
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