ADV473KP110 Analog Devices, ADV473KP110 Datasheet

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ADV473KP110

Manufacturer Part Number
ADV473KP110
Description
Manufacturer
Analog Devices
Datasheet

Specifications of ADV473KP110

Case
PLCC68
Dc
93+

Available stocks

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Part Number
Manufacturer
Quantity
Price
Part Number:
ADV473KP110ES
Manufacturer:
AD
Quantity:
5 510
Part Number:
ADV473KP110ES
Manufacturer:
VISHAY
Quantity:
5 510
a
REV. A
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.
ADV is a registered trademark of Analog Devices Inc.
*Personal System/2 and VGA are trademarks of International Business Machines Corp.
FEATURES
ADV478/ADV471 (ADV
IBM PS/2,* VGA*/XGA* Compatible
135 MHz Pipelined Operation
Triple 8-Bit D/A Converters
Triple 256
Three 15
On-Board Voltage Reference
RS-343A/RS-170 Compatible Analog Outputs
TTL Compatible Digital Inputs and Outputs
Sync on All Three Channels
Programmable Pedestal (0 or 7.5 IRE)
Standard MPU l/O Interface
+5 V CMOS Monolithic Construction
68-Pin PLCC Package
APPLICATIONS
High Resolution Color Graphics
True-Color Visualization
CAE/CAD/CAM
Image Processing
Desktop Publishing
OVERLAYS
GREEN
BLUE
RED
8 Overlay Registers
BLANK
CLOCK
SYNC
8 (256
OL0
OL3
S0
G0
G7
S1
R0
R7
B0
B7
8
8
8
4
MODE CONTROL
24) Color Palette RAM
REGISTERS
®
O
P
X
E
L
P
R
T
I
) Register Level Compatible
8
8
8
SWITCHING
MATRIX &
PIXEL MASK
REGISTERS
PIXEL
MASK
FUNCTIONAL BLOCK DIAGRAM
8
8
8
RED
REG
15 x 8 RAM
256 x 8
OVERLAY PALETTE
8
RAM
RED
8
15 x 8 RAM
MPU PORT
GREEN
256 x 8
GREEN
RAM
D0–D7
REG
CMOS 135 MHz True-Color Graphics
15 x 8 RAM
8
8
8
PALETTE
256 x 8
COLOR
BLUE
RAM
BLUE
REG
GENERAL DESCRIPTION
The ADV473 is a complete analog output, Video RAM-DAC
on a single CMOS monolithic chip. The part is specifically
designed for true-color computer graphics systems.
The ADV473 integrates a number of graphic functions onto one
device allowing 24-bit direct true-color operation at the maxi-
mum screen update rate of 135 MHz. It can also be used in
other modes, including 15-bit true color and 8-bit pseudo or in-
dexed color. The ADV473 is fully PS/2 and VGA register level
compatible. It is also capable of implementing IBM’s XGA
standard.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
8
8
MODES
24-Bit True Color
8-Bit Pseudo Color
15-Bit True Color
8-Bit True Color
SPEED GRADES
135 MHz, 110 MHz
80 MHz, 66 MHz
8
8
8
8
8
8
ADDRESS
REG
RD
SWITCHER
PALETTE/
OVERLAY
Triple 8-Bit Video RAM-DAC
PALETTE
COLOR
WR
RS0 RS1
CONTROL LOGIC
8
8
8
MPU & PIXEL
PORT
D
A
C
O
R
P
T
RS2
V
REFIN
8
8
8
GENERATOR
REFERENCE
REFERENCE
ADV473
VOLTAGE
CONTROL
VOLTAGE
V
CIRCUIT
GREEN
REFOUT
BLUE
DAC
RED
DAC
DAC
(Continued on page 4)
ADV473
Fax: 617/326-8703
OPA
CR2
IOR
IOG
IOB
CR0
CR1
CR3

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ADV473KP110 Summary of contents

Page 1

... System/2 and VGA are trademarks of International Business Machines Corp. REV. A 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 ...

Page 2

ADV473–SPECIFICATIONS Parameter STATIC PERFORMANCE Resolution (Each DAC) Accuracy (Each DAC) Integral Nonlinearity Differential Nonlinearity Gray Scale Error Coding DIGITAL INPUTS Input High Voltage, V INH Input Low Voltage, V INL Input Current Input Capacitance DIGITAL OUTPUTS ...

Page 3

TIMING CHARACTERISTICS 135 MHz 110 MHz Parameter Version Version fmax 135 110 ...

Page 4

... Analog output short circuit to any power supply or common can indefinite duration. ORDERING GUIDE Temperature No. of Package Model Speed Range ADV473KP135 135 MHz +70 C ADV473KP110 110 MHz +70 C ADV473KP80 80 MHz +70 C ADV473KP66 66 MHz +70 C NOTE * All devices are packaged in a 68-pin plastic leaded (J-lead) chip carrier. ...

Page 5

PIN FUNCTION DESCRIPTION BLANK Composite Blank Control Input (TTL Compatible). A logic zero drives the analog outputs to the blanking level latched on the rising edge of CLOCK. When BLANK is a logical zero, the pixel and overlay ...

Page 6

ADV473 TERMINOLOGY BLANKING LEVEL The level separating the SYNC portion from the video portion of the waveform. Usually referred to as the front porch or back porch IRE units the level which will shut off the ...

Page 7

ADDRa,b (Counts Modulo 3) ADDR0-7 (Counts Binary) Overlay Color Writes The MPU writes to the address register (selecting OVERLAY REGISTER write mode, RS2 = 1, RS1 = 0 and RS0 = 0) with the address of the overlay register to ...

Page 8

ADV473 Command Register (CR) The ADV473 has an internal command register (CR). This reg- ister is 8 bits wide, CR0–CR7 and is directly mapped to the MPU data bus on the part, D0–D7. The command register can be written to ...

Page 9

VIDEO MODES 24-Bit True-Color Mode Twenty-four bits of RGB color information may be input into the ADV473 every clock cycle. The 24 bits of pixel information are input via the R0–R7, G0–G7, and B0–B7 inputs. R0–R7 ad- dress the red ...

Page 10

ADV473 MA V 26.67 1.000 92.5 IRE 9.05 0.340 7.5 IRE 7.62 0.286 40 IRE 0.00 0.000 NOTE: 75 DOUBLY TERMINATED LOAD, SETUP = 7.5 IRE, V RS-343A LEVELS AND TOLERANCES ASSUMED ON ALL LEVELS. Figure 5. Composite Video Output ...

Page 11

PC BOARD LAYOUT CONSIDERATIONS The layout should be optimized for lowest noise on the ADV473 power and ground lines by shielding the digital inputs and pro- viding good decoupling. The lead length between groups of V and GND pins should ...

Page 12

... GND should be as close as pos- sible to the ADV473 to minimize reflections. For more information on circuit board design and layout, see application note entitled “Design and Layout of a Video Graph- ics System for Reduced EMI” available from Analog Devices, Publication No. E1309-15-10/89. POWER SUPPLY DECOUPLING 0.1 F ...

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