參數(shù)資料
型號(hào)： ADV7150LS220
廠商： ANALOG DEVICES INC
元件分類： 顯示控制器
英文描述： CMOS 220 MHz True-Color Graphics Triple 10-Bit Video RAM-DAC
中文描述： PALETTE-DAC DSPL CTLR, PQFP160
封裝： POWER, PLASTIC, QFP-160
文件頁(yè)數(shù)： 15/36頁(yè)
文件大?。?/td> 447K
代理商： ADV7150LS220
ADV7150
–15–
REV. A
Pipeline Delay and Onboard Calibration
T he ADV7150 has a fixed number of pipeline delays (t
PD
), so
long as timings t
10
and
τ
-t
11
are met. However, if a fixed pipeline
delay is not a requirement, timings t
10
and
τ
-t
11
can be ignored,
a calibration cycle must be run and there is no restriction on
LOADIN to LOADOUT timing. If timings t
10
and
τ
-t
11
are not
met, the part will function correctly though with an increased
number of pipeline delays, t
PD
+ N CLOCK S (for 4:1 mode
N = 4, for 2:1 mode N = 2, for 1:1 mode N = 0). T he ADV7150
has onboard calibration circuitry which synchronizes pixel data and
LOADIN with the internal ADV7150 clocking signals. Calibra-
tion can be performed in two ways: during the devices initializa-
tion sequence by toggling two bits of the Mode Register, MR10
followed by MR15, or by writing a “1” to Bit CR10 of Command
Register 1 which executes a calibration on every Vertical Sync.
COLOR VIDE O MODE S
T he ADV7150 supports a number of color video modes all at
the maximum video rate.
Command bits CR24–CR27 of Command Register 2 along with
Bit MR11 of Mode Register 1 determine the color mode.
24-Bit “ Gamma” T rue Color
(CR25, CR26, CR27 = 1, 1, 1 and MR11 = 1)
T he part is set to 24-bit/30-bit T rue-Color operation. T he pixel
port accepts 24 bits of color data which is directly mapped to
the Look-Up T able RAM. T he Look-Up T able is configured as
a 256 location by 30 bits deep RAM (10 bits each for Red,
Green and Blue). T he output of the RAM drives the DACs with
30-bit data (10 bits each for Red, Green and Blue). T he RAM is
preloaded with a user determined, nonlinear function, such as a
gamma correction curve.
10
10-BIT
RED DAC
10-BIT
BLUE DAC
RED
256 x 10
GREEN
256 x 10
BLUE
256 x 10
8
10-BIT
GREEN DAC
10
10
8
8
24-BIT
COLOR DATA
24-BIT TO 30-BIT
LOOK-UP TABLE
30-BIT
COLOR DATA
ANALOG VIDEO
OUTPUTS
RED
OUT
GREEN
OUT
BLUE
OUT
Figure 19. 24-Bit to 30-Bit True-Color Configuration
T his mode allows for the display of full 24-bit, Gamma-
Corrected T rue-Color Images.
24-Bit “ Standard” T rue Color
(CR25, CR26, CR27 = 1, 1, 1 and MR11 = 0)
T his mode sets the part into direct 24-bit T rue-Color operation.
T he pixel port accepts 24 bits of color data which is directly
mapped to Look-Up T able RAM. T he Look-Up T able is con-
figured as a 256 location by 24 bits deep RAM (8 bits each for
Red, Green and Blue) and essentially acts as a bypass RAM.
T he output of the RAM drives the DACs with 24-bit data (8
bits each for Red, Green and Blue). T he RAM is preloaded with
a linear function.
T his mode allows for the display of full 24-bit T rue-Color
Images.
8
8-BIT
RED DAC
8-BIT
BLUE DAC
RED
256 x 8
GREEN
256 x 8
BLUE
256 x 8
8
8-BIT
GREEN DAC
8
8
8
8
RED
OUT
GREEN
OUT
BLUE
OUT
24-BIT
COLOR DATA
24-BIT TO 24-BIT
LOOK-UP TABLE
24-BIT
COLOR DATA
ANALOG VIDEO
OUTPUTS
Figure 20. 24-Bit to 24-Bit Direct True-Color Configuration
8-Bit “ Gamma” Pseudo Color
(CR25, CR26, CR27 = X , 0, 0 or X , 1, 0 or X , 0, 1 and
MR11 = 1)
T his mode sets the part into 8-bit Pseudo-Color operation. T he
pixel port accepts 8 bits of pixel data which indexes a 30-bit
word in the Look-Up T able RAM. T he Look-Up T able is con-
figured as a 256 location by 30 bits deep RAM (10 bits each for
Red, Green and Blue). T he output of the RAM drives the
DACs with 30-bit data (10 bits each for Red, Green and Blue).
10
10-BIT
RED DAC
10-BIT
BLUE DAC
RED
256 x 10
GREEN
256 x 10
BLUE
256 x 10
10-BIT
GREEN DAC
10
10
8
RED
OUT
GREEN
OUT
BLUE
OUT
8-BIT PIXEL
DATA
8-BIT TO 30-BIT
LOOK-UP TABLE
30-BIT
COLOR DATA
ANALOG VIDEO
OUTPUTS
Figure 21. 8-Bit to 30-Bit Pseudo-Color Configuration
T his mode allows for the display of 256 simultaneous colors out
of a total palette of millions of addressable colors.
8-Bit “ Standard” Pseudo Color
(CR25, CR26, CR27 = X , 0, 0 or X , 1, 0 or X , 0, 1 and
MR11 = 0)
T his mode sets the part into 8-bit Pseudo-Color operation. T he
pixel port accepts 8 bits of pixel data which indexes a 24-bit
word in the Look-Up T able RAM. T he Look-Up T able is con-
figured as a 256 location by 24 bits deep RAM (10 bits each for
Red, Green and Blue). T he output of the RAM drives the
DACs with 24-bit data (8 bits each for Red, Green and Blue).
8
8-BIT
RED DAC
8-BIT
BLUE DAC
RED
256 x 8
GREEN
256 x 8
BLUE
256 x 8
8-BIT
GREEN DAC
8
8
8
RED
OUT
GREEN
OUT
BLUE
OUT
8-BIT PIXEL
DATA
8-BIT TO 24-BIT
LOOK-UP TABLE
24-BIT
COLOR DATA
ANALOG VIDEO
OUTPUTS
Figure 22. 8-Bit to 24-Bit Pseudo-Color Configuration
T his mode allows for the display of 256 simultaneous colors out
of a total palette of millions of addressable colors.
相關(guān)PDF資料
PDF描述
ADV7183 Video Decoder with 9-Bit ADC(帶9位A/D轉(zhuǎn)換器和自適應(yīng)梳狀濾波器視頻譯碼器)
ADV7184 Multiformat SDTV Video Decoder with Fast Switch Overlay Support
ADV7184BSTZ Multiformat SDTV Video Decoder with Fast Switch Overlay Support
ADV7188 Multiformat SDTV Video Decoder with Fast Switch Overlay Support
ADV7189B Multiformat SDTV Video Decoder
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
adv7150ls85 制造商:Rochester Electronics LLC 功能描述:220MHZ 3X10 BIT VIDEO DAC - Bulk 制造商:Analog Devices 功能描述:
ADV7151 制造商:AD 制造商全稱:Analog Devices 功能描述:CMOS 220 MHz Pseudo-Color Graphics Triple 10-Bit Video RAM-DAC
ADV7151KS110 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC with Color Palette (RAMDAC)
ADV7151KS135 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC with Color Palette (RAMDAC)
ADV7151KS170 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC with Color Palette (RAMDAC)
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*