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參數資料
| 型號： | ADV7122 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 80 MHz, Triple 10-Bit Video DACs(80MHz,三通道10位視頻D/A轉換器) |
| 中文描述： | 80兆赫，三路10位視頻數模轉換器（為80MHz，三通道10位視頻的D / A轉換器） |
| 文件頁數： | 1/12頁 |
| 文件大小： | 166K |
| 代理商： | ADV7122 |
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
80 MHz, Triple 10-Bit Video DACs
ADV7121/ADV7122
Analog Devices, Inc., 1996
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
Fax: 617/326-8703
ADV7121 FUNCT IONAL BLOCK DIAGRAM
PIXEL
INPUT
PORT
IOR
IOG
IOB
R0
R9
CLOCK
10
ADV7121
V
REF
G0
G9
10
B0
B9
10
FS
ADJUST
10
10
10
V
AA
REFERENCE
AMPLIFIER
COMP
DAC
DAC
RED
REGISTER
BLUE
REGISTER
GREEN
REGISTER
DAC
GND
ADV7122 FUNCT IONAL BLOCK DIAGRAM
PIXEL
INPUT
PORT
IOR
IOG
IOB
R0
R9
CLOCK
10
SYNC
ADV7122
GND
G0
G9
10
B0
B9
10
BLANK
FS
ADJUST
10
10
10
V
AA
REFERENCE
AMPLIFIER
COMP
DAC
DAC
RED
REGISTER
BLUE
REGISTER
CONTROL
REGISTER
GREEN
REGISTER
DAC
SYNC
CONTROL
V
REF
FEATURES
80 MHz Pipelined Operation
Triple 10-Bit D/A Converters
RS-343A/RS-170 Compatible Outputs
TTL Compatible Inputs
+5 V CMOS Monolithic Construction
40-Pin DIP Package (ADV7121)
44-Pin PLCC Package (ADV7122)
48-Lead TQFP (ADV7122)
APPLICATIONS
High Definition Television (HDTV)
High Resolution Color Graphics
CAE/CAD/CAM Applications
Image Processing
Instrumentation
Video Signal Reconstruction
Direct Digital Synthesis (DDS)
I/Q Modulation
SPEED GRADES
80 MHz
50 MHz
30 MHz
ADV is a registered trademark of Analog Devices, Inc.
*Speed grades up to 140 MHz are also available on special request.
Please contact Analog Devices or its representatives for details.
GE NE RAL DE SCRIPT ION
T he ADV7121/ADV7122 (ADV
) is a video speed, digital-to-
analog converter on a single monolithic chip. T he part is specifi-
cally designed for high resolution color graphics and video
systems including high definition television (HDT V). It is also
ideal for any application requiring a low cost, high speed DAC
function especially in communications. It consists of three, high
speed, 10-bit, video D/A converters (RGB), a standard T T L input
interface and high impedance, analog output, current sources.
T he ADV7121/ADV7122 has three separate, 10-bit, pixel input
ports, one each for red, green and blue video data. A single +5 V
power supply, an external 1.23 V reference and pixel clock input is
all that is required to make the part operational. T he ADV7122
has additional video control signals, composite
SYNC
and
BLANK
.
T he ADV7121/ADV7122 is capable of generating RGB video
output signals which are compatible with RS-343A, RS-170 and
most proposed production system HDT V video standards, in-
cluding SMPT E 240M.
T he ADV7121/ADV7122 is fabricated in a +5 V CMOS pro-
cess. Its monolithic CMOS construction ensures greater func-
tionality with low power dissipation. T he ADV7121 is packaged
in a 0.6", 40-pin plastic DIP package. T he ADV7122 is pack-
aged in a 44-pin plastic leaded (J-lead) chip carrier, PLCC,
and 48-lead thin quad flatpack (T QFP).
PRODUCT HIGHLIGHT S
1. Fast video refresh rate, 80 MHz.
2. Guaranteed monotonic to 10 bits. T en bits of resolution al-
lows for implementation of linearization functions such as
gamma correction and contrast enhancement.
3. Compatible with a wide variety of high resolution color
graphics systems including RS-343A/RS-170 and the pro-
posed SMPT E 240M standard for HDT V.
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| ADV7122JP50 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Video DAC without Color Palette |
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| ADV7122KP30 | 制造商:Rochester Electronics LLC 功能描述:TRIPLE 10 BIT VIDEO DAC - Bulk |
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