ADV453KN40 Analog Devices Inc, ADV453KN40 Datasheet

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ADV453KN40

Manufacturer Part Number
ADV453KN40
Description
Manufacturer
Analog Devices Inc
Datasheet

Specifications of ADV453KN40

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GENERAL DESCRIPTION
The ADV453 is a complete analog video output RAM-DAC on
a single monolithic chip. It is specifically designed for high reso-
lution color graphics systems. The part contains a 256
color lookup table, a 3
video D/A converters. The ADV453 is capable of simulta-
neously displaying up to 259 colors, 256 from the lookup table
and three from the overlay registers, out of a total color palette
of 16.8 million addressable colors.
The three overlay registers allow for implementation of overlay-
ing cursors, pull down menus and grids. There is an indepen-
dent, asynchronous MPU bus which allows access to the color
lookup table without affecting the input of video data via the
pixel port. The ADV453 is capable of generating RGB video
output signals which are compatible with RS-343A and RS-170
video standards, without requiring external buffering.
The ADV453 is fabricated in a +5 V CMOS process. Its mono-
lithic CMOS construction ensures greater functionality with low
power dissipation. The part is packaged in both a 0.6", 40-pin
DIP and a 44-pin plastic leaded (J-lead) chip carrier, PLCC.
**VGA is a trademark of International Business Machines Corp.
**Macintosh II is a registered trademark of Apple Computer Inc.
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
66 MHz Pipelined Operation
Triple 8-Bit D/A Converters
256 24 Color Palette RAM
3 24 Overlay Registers
RS-343A/RS-170 Compatible Outputs
40-Pin DIP or Small 44-Pin PLCC Package
Power Dissipation: 1000 mW
APPLICATIONS
High Resolution Color Graphics
CAE/CAD/CAM Applications
Image Processing
Instrumentation
Desktop Publishing
AVAILABLE CLOCK RATES
66 MHz
40 MHz
5 V CMOS Monolithic Construction
24 overlay palette as well as triple 8-bit
24
CMOS 66 MHz Monolithic 256 24
PRODUCT HIGHLIGHTS
1. Fast video refresh rate, 66 MHz.
2. Compatible with a wide variety of high resolution color
3. Three overlay registers allow for implementation of overlay-
4. Guaranteed monotonic. Integral and differential nonlineari-
5. Low glitch energy, 50 pV secs.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
graphics systems including VGA* and Macintosh II.**
ing cursors, pull down menus and grids.
ties guaranteed to be a maximum of 1 LSB.
FUNCTIONAL BLOCK DIAGRAM
Color Palette RAM-DAC
ADV453
Fax: 617/326-8703

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ADV453KN40 Summary of contents

Page 1

FEATURES 66 MHz Pipelined Operation Triple 8-Bit D/A Converters 256 24 Color Palette RAM 3 24 Overlay Registers RS-343A/RS-170 Compatible Outputs 5 V CMOS Monolithic Construction 40-Pin DIP or Small 44-Pin PLCC Package Power Dissipation: 1000 mW APPLICATIONS High ...

Page 2

ADV453–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 C IN DIGITAL OUTPUTS ...

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TIMING CHARACTERISTICS Parameter 66 MHz Version f 66 MAX 100 ...

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... Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. DIP ORDERING GUIDE Temperature + 0 Model Range ADV453KN66 +70 C ADV453KN40 +70 C ADV453KP66 +70 C ADV453KP40 + Plastic DIP Plastic Leaded Chip Carrier. Symbol Min Typ Max V 4 ...

Page 5

PIN FUNCTION DESCRIPTION Pin Mnemonic Function BLANK Composite blank control input (TTL compatible). A logic zero on this control input drives the analog outputs to the blanking level, as shown in Table V. The BLANK signal is latched on the ...

Page 6

ADV453 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

The three overlay registers can be accessed in the same way as the color palette RAM. The overlays are selected using C0 and C1 according to Table I. When accessing the overlay color reg- isters, the address register increments following ...

Page 8

ADV453 Frame Buffer Interface The P0–P7, OL0 and OL1 inputs are used to address the color palette RAM and overlay registers, as shown in Table IV. These inputs are latched on the rising edge of CLOCK and address any of ...

Page 9

Description White Level Video Video to Blank Black Level Black to Blank Blank Level SYNC Level NOTE 1 Typical with full Scale IOG = 26.67 mA BOARD LAYOUT CONSIDERATIONS The ADV453 is optimally designed for lowest noise perform- ...

Page 10

ADV453 Figure 6. ADV453 Typical Connection Diagram and Component List Supply Decoupling Noise on the analog power plane can be further reduced by the use of multiple decoupling capacitors, see Figure 6. Optimum performance is achieved by the use of ...

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REV. B OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 40-Pin Plastic DIP (N-40A) 44-Terminal Plastic Leaded Chip Carrier (P-44A) –11– ADV453 ...

Page 12

ADV453 –12– REV. B ...

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