adv7152 Analog Devices, Inc., adv7152 Datasheet
adv7152
Manufacturer Part Number
adv7152
Description
Cmos 220 Mhz True-color Graphics Triple 10-bit Video Ram-dac
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADV7152.pdf
(32 pages)
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a
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.
FEATURES
220 MHz, 24-Bit (30-Bit Gamma Corrected) True Color
Triple 10-Bit “Gamma Correcting” D/A Converters
Triple 256
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
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
MODES OF OPERATION
24-Bit True Color (30-Bit Gamma Corrected)
8-Bit Pseudo Color
15-Bit True Color
10-Bit Parallel Structure
8+2 Byte Structure
@ 220 MHz
@ 170 MHz
@ 135 MHz
@ 110 MHz
@ 85 MHz
RED (R0–R7),
GREEN (G0–G7),
BLUE (B0–B7)
COLOR DATA
PRGCKOUT
10 (256
(PS0, PS1)
LOADOUT
SELECTS
PALETTE
SCKOUT
LOADIN
BLANK
CLOCK
CLOCK
SCKIN
SYNC
B
A
30) Color Palette RAM
24
4
24
CLOCK CONTROL
SYNCHRONIZATION
ECL TO CMOS
32, 16, 8, 4, 2
CLOCK DIVIDE
V
P
X
E
L
P
O
R
T
I
AA
CIRCUIT
48
&
JC
4
< 1.0 C/W
MUX
MUX
2:1
2:1
FUNCTIONAL BLOCK DIAGRAM
REGISTER
ADDRESS
(A0-–A15)
ADDR
CE R/W
8
8
8
2
REGISTER
C0 C1
MODE
(MR1)
CMOS 220 MHz True-Color Graphics
PIXEL MASK
REGISTERS
REGISTER
REGISTER
CONTROL REGISTERS
TEST
256-COLOR/GAMMA
ID
APPLICATIONS
High Resolution, True Color Graphics
Professional Color Prepress Imaging
GENERAL DESCRIPTION
The ADV7152 (ADV
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
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
ADV is a registered trademark of Analog Devices, Inc.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
256 x 10
PALETTE RAM
RED
D9 – D0
MPU PORT
256 x 10
GREEN
10 (8+2)
256 x 10
Triple 10-Bit Video RAM-DAC
BLUE
REGISTERS
COMMAND
(CR1-CR3)
REGISTER
REVISION
10
10
10
PALETTES
DATA TO
REGISTER
RED
®
GREEN DAC
BLUE DAC
) is a complete analog output, Video
RED DAC
30
10-BIT
10-BIT
10-BIT
REGISTER
COLOR REGISTERS
REFERENCE
10 (one 256
OUTPUT
GREEN
SYNC
VOLTAGE
CIRCUIT
ADV7152
GND
REGISTER
BLUE
ADV7152
(Continued on page 10)
30) color look-up
IOR
IOR
IOG
IOG
IOB
IOB
I
SYNCOUT
V
R
C
PLL
REF
SET
OMP
Fax: 617/326-8703
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