參數(shù)資料
型號(hào)： ADV7152
廠商： Analog Devices, Inc.
英文描述： CMOS 220 MHz True-Color Graphics Triple 10-Bit Video RAM-DAC(三通道,10位視頻RAM-D/A轉(zhuǎn)換器)
中文描述： 220兆赫的CMOS真彩色圖形三路10位顯存，數(shù)模轉(zhuǎn)換器（三通道，10位視頻RAM的的D / A轉(zhuǎn)換器）
文件頁(yè)數(shù)： 1/32頁(yè)
文件大?。?/td> 322K
代理商： ADV7152
REV. B
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
CMOS 220 MHz True-Color Graphics
Triple 10-Bit Video RAM-DAC
ADV7152
FEATURES
220 MHz, 24-Bit (30-Bit Gamma Corrected) True Color
Triple 10-Bit “Gamma Correcting” D/A Converters
Triple 256
10 (256
30) Color Palette RAM
On-Chip Clock Control Circuit
Palette Priority Select Registers
RS-343A/RS-170 Compatible Analog Outputs
TTL Compatible Digital Inputs
Standard MPU l/O Interface
10-Bit Parallel Structure
8+2 Byte Structure
Programmable Pixel Port: 24-Bit and 8-Bit (Pseudo)
Pixel Data Serializer
Multiplexed Pixel Input Ports; 1:1, 2:1
+5 V CMOS Monolithic Construction
100-Lead Plastic Quad Flatpack (QFP)
Thermally Enhanced to Achieve JC < 1.0 C/W
MODES OF OPERATION
24-Bit True Color (30-Bit Gamma Corrected)
@ 220 MHz
@ 170 MHz
@ 135 MHz
@ 110 MHz
@ 85 MHz
8-Bit Pseudo Color
15-Bit True Color
APPLICATIONS
High Resolution, True Color Graphics
Professional Color Prepress Imaging
GENERAL DESCRIPTION
The ADV7152 (ADV
) is a complete analog output, Video
RAM-DAC on a single CMOS monolithic chip. The part is spe-
cifically designed for use in high performance, color graphics
workstations. The ADV7152 integrates a number of graphic
functions onto one device allowing 24-bit direct True-Color op-
eration at the maximum screen update rate of 220 MHz. The
ADV7152 implements 30-bit True Color in 24-bit frame buffer
designs. The part also supports other modes, including 15-bit
True Color and 8-bit Pseudo or Indexed Color. Either the Red,
Green or Blue input pixel ports can be used for Pseudo Color.
The device consists of three high speed 10-bit video D/A con-
verters (RGB), three 256
10 (one 256
30) color look-up
tables, palette priority selects, a pixel input data multiplexer/
serializer and a clock generator/divider circuit. The ADV7152
implements 1:1 and 2:1 pixel data multiplexing. The onboard
palette priority select inputs enable multiple palette devices to
be connected together for use in multipalette and window
(Continued on page 10)
ADV is a registered trademark of Analog Devices, Inc.
FUNCTIONAL BLOCK DIAGRAM
256-COLOR/GAMMA
PALETTE RAM
10
IOR
48
A
B
24
P
I
X
E
L
P
O
R
T
MUX
2:1
30
RED
256 x 10
MPU PORT
D9 – D0
10 (8+2)
C0
C1
LOADIN
CLOCK
LOADOUT
PRGCKOUT
SCKIN
SCKOUT
CLOCK DIVIDE
&
SYNCHRONIZATION
CIRCUIT
÷32, ÷16, ÷8, ÷4, ÷2
ADDR
(A0-–A15)
REVISION
REGISTER
COMMAND
REGISTERS
(CR1-CR3)
TEST
REGISTERS
(MR1)
VOLTAGE
REFERENCE
CIRCUIT
ADV7152
VREF
RSET
COMP
SYNC
OUTPUT
IPLL
RED (R0–R7),
GREEN (G0–G7),
BLUE (B0–B7)
COLOR DATA
VAA
GND
DATA TO
PALETTES
CONTROL REGISTERS
COLOR REGISTERS
ADDRESS
REGISTER
CLOCK CONTROL
MODE
REGISTER
GREEN
256 x 10
BLUE
256 x 10
PALETTE
SELECTS
(PS0, PS1)
ID
REGISTER
PIXEL MASK
REGISTER
8
CE R/W
IOR
IOG
IOB
10-BIT
GREEN DAC
10
BLUE
REGISTER
RED
REGISTER
ECL TO CMOS
8
2
4
SYNC
BLANK
CLOCK
MUX
2:1
10-BIT
RED DAC
10-BIT
BLUE DAC
GREEN
REGISTER
SYNCOUT
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
Analog Devices, Inc., 1997
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參數(shù)描述
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ADV7152KS170 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)
ADV7152KS85 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)
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