参数资料
| 型号： | EVAL-ADV7195EB |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/36页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADV7195 |
| 标准包装： | 1 |
| 主要目的： | 视频，视频处理 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADV7195 |
| 主要属性： | 多格式顺序扫描/HDTV 编码器，3 个 11 位 ADC |
| 次要属性： | 内部测试样式发生器，带颜色控制 |
| 已供物品： | 板 |
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a
FEATURES
INPUT FORMATS
Multiformat Progressive Scan/HDTV
Encoder with Three 11-Bit DACs
and 10-Bit Data Input
ADV7195
FUNCTIONAL BLOCK DIAGRAM
YCrCb in 2
10-Bit (4:2:2) or 3
10-Bit (4:4:4) Format-
SHARPNESS
Compliant to SMPTE-293M (525p), ITU-R.BT1358
(625p), SMPTE274M (1080i), SMPTE296M (720p)
and Any Other High-Definition Standard Using
FILTER CONTROL
AND
ADAPTIVE
FILTER CONTROL
CGMS
MACROVISION
ADV7195
11-BIT+
Async Timing Mode
RGB in 3 10 Bit (4:4:4) Format
OUTPUT FORMATS
YPrPb Progressive Scan (EIA-770.1, EIA-770.2)
YPrPb HDTV (EIA-770.3)
RGB Levels Compliant to RS-170 and RS-343A
Y0–Y9
Cr0–Cr9
Cb0–Cb9
TEST PATTERN
GENERATOR
AND
DELAY
AND
GAMMA
CORRECTION
CHROMA
4:2:2
TO
4:4:4
(SSAF)
CHROMA
4:2:2
TO
LUMA
SSAF
2 INTER-
POLATION
SYNC
DAC
11-BIT
DAC
11-BIT
DAC
DAC A (Y)
DAC B
DAC C
11-Bit + Sync (DAC A)
4:4:4
(SSAF)
11-Bit DACs (DAC B, DAC C)
CLKIN
HORIZONTAL
SYNC
PROGRAMMABLE FEATURES
Internal Test Pattern Generator with Color Control
Y/C Delay ( )
SYNC
VERTICAL
SYNC
BLANKING
RESET
TIMING
GENERATOR
I 2 C MPU
PORT
GENERATOR
DAC CONTROL
BLOCK
V REF
RESET
COMP
Gamma Correction
Individual DAC On/Off Control
54 MHz Output (2
Oversampling)
Sharpness Filter with Programmable Gain/Attenuation
Programmable Adaptive Filter Control
Undershoot Limiter
VBI Open Control
I 2 C ? Filter
CGMS-A (525p)
2-Wire Serial MPU Interface
Single Supply 3.3 V Operation
52-MQFP Package
APPLICATIONS
Progressive Scan/HDTV Display Devices
MPEG at 81 MHz
Progressive Scan/HDTV Projection Systems
Digital Video Systems
High Resolution Color Graphics
Image Processing/Instrumentation
Digital Radio Modulation/Video Signal Reconstruction
GENERAL DESCRIPTION
The ADV7195 is a triple high-speed, digital-to-analog encoder
on a single monolithic chip. It consists of three high-speed video
D/A converters with TTL-compatible inputs.
The ADV7195 has three separate 10-bit-wide input ports that
accept data in 4:4:4 10-bit YCrCb or RGB or 4:2:2 10-bit YCrCb.
This data is accepted in progressive scan format at 27 MHz or
HDTV format at 74.25 MHz or 74.1758 MHz. For any other
high-definition standard but SMPTE293M, ITU-R BT.1358,
SMPTE274M or SMPTE296M the Async Timing Mode can
be used to input data to the ADV7195. For all standards, exter-
nal horizontal, vertical, and blanking signals or EAV/SAV codes
control the insertion of appropriate synchronization signals into
the digital data stream and therefore the output signals.
The ADV7195 outputs analog YPrPb progressive scan format
complying to EIA-770.1, EIA-770.2; YPrPb HDTV complying
to EIA-770.3; RGB complying to RS-170/RS-343A.
The ADV7195 requires a single 3.3 V power supply, an
optional external 1.235 V reference and a 27 MHz clock in
Progressive Scan Mode or a 74.25 MHz (or 74.1758 MHz)
clock in HDTV mode.
In Progressive Scan Mode, a sharpness filter with programmable
gain allows high-frequency enhancement on the luminance signal.
Programmable Adaptive Filter Control, which may be used,
allows removal of ringing on the incoming Y data. The ADV7195
supports CGMS-A data control generation.
The ADV7195 is packaged in a 52-lead MQFP package.
I 2 C is a registered trademark of Philips Corporation.
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 that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 www.analog.com
Fax: 781/326-8703 ? Analog Devices, Inc., 2002
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