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參數(shù)資料
| 型號： | ADV7344 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Multiformat Video Encoder Six 14-Bit Noise Shaped Video DACs |
| 中文描述： | 多格式視頻編碼器6 14位噪聲整形視頻DAC |
| 文件頁數(shù)： | 4/88頁 |
| 文件大?。?/td> | 1078K |
| 代理商： | ADV7344 |
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ADV7344
DETAILED FEATURES
Rev. 0 | Page 4 of 88
High definition (HD) programmable features
(720p/1080i/1035i)
4× oversampling (297 MHz)
Internal test pattern generator
Color and black bar, hatch, flat field/frame
Fully programmable YCrCb to RGB matrix
Gamma correction
Programmable adaptive filter control
Programmable sharpness filter control
CGMS (720p/1080i) and CGMS Type B (720p/1080i)
Dual data rate (DDR) input support
EIA/CEA-861B compliance support
Enhanced definition (ED) programmable features
(525p/625p)
8× oversampling (216 MHz output)
Internal test pattern generator
Color and black bar, hatch, flat field/frame
Individual Y and PrPb output delay
Gamma correction
Programmable adaptive filter control
Fully programmable YCrCb to RGB matrix
Undershoot limiter
Macrovision Rev 1.2 (525p/625p)
CGMS (525p/625p) and CGMS Type B (525p)
Dual data rate (DDR) input support
EIA/CEA-861B compliance support
Standard definition (SD) programmable features
16× oversampling (216 MHz)
Internal test pattern generator
Color and black bar
Controlled edge rates for start and end of active video
Individual Y and PrPb output delay
Undershoot limiter
Gamma correction
Digital noise reduction (DNR)
Multiple chroma and luma filters
Luma-SSAF filter with programmable gain/attenuation
PrPb SSAF
Separate pedestal control on component and
composite/S-Video output
VCR FF/RW sync mode
Macrovision Rev 7.1.L1
Copy generation management system (CGMS)
Wide screen signaling
Closed captioning
EIA/CEA-861B compliance support
GENERAL DESCRIPTION
The ADV7344 is a high speed, digital-to-analog video encoder
in a 64-pin LQFP package. Six high speed, NSV, 3.3 V, 14-bit
video DACs provide support for composite (CVBS), S-Video
(YC), and component (YPrPb/RGB) analog outputs in either
standard definition (SD), enhanced definition (ED) or high
definition (HD) video formats.
The ADV7344 has a 30-bit pixel input port that can be
configured in a variety of ways. SD video formats are supported
over a SDR interface and ED/HD video formats are supported
over SDR and DDR interfaces. Pixel data can be supplied in
either the YCrCb or RGB color spaces.
The ADV7344 also supports embedded EAV/SAV timing codes,
external video synchronization signals, and I
2
C and SPI
communication protocols.
In addition, simultaneous SD and ED/HD input and output is
supported. 216 MHz (SD and ED) and 297 MHz (HD)
oversampling ensures that external output filtering is not
required, while full-drive DACs ensure that external output
buffering is not required.
Cable detection and DAC auto power-down features keep
power consumption to a minimum.
Table 1 lists the video standards directly supported by the
ADV7344.
Table 1. Standards Directly Supported by the ADV7344
1
Frame
Rate (Hz)
720 × 240
P
59.94
720 × 288
P
50
720 × 480
I
29.97
Resolution
I/P
2
Clock Input
(MHz)
27
27
27
Standard
ITU-R
BT.601/656
ITU-R
BT.601/656
NTSC Square
Pixel
PAL Square
Pixel
SMPTE 293M
BTA T-1004
ITU-R BT.1358
ITU-R BT.1358
ITU-R BT.1362
ITU-R BT.1362
SMPTE 240M
SMPTE 240M
SMPTE 296M
720 × 576
I
25
27
720 × 480
I
29.97
24.54
720 × 576
I
25
29.5
720 × 483
720 × 483
720 × 483
720 × 576
720 × 483
720 × 576
1920 × 1035
1920 × 1035
1280 × 720
P
P
P
P
P
P
I
I
P
59.94
59.94
59.94
50
59.94
50
30
29.97
60, 50, 30,
25, 24
23.97,
59.94,
29.97
30, 25
29.97
30, 25, 24
23.98,
29.97
24
27
27
27
27
27
27
74.25
74.1758
74.25
1280 × 720
P
74.1758
SMPTE 296M
1920 × 1080
1920 × 1080
1920 × 1080
1920 × 1080
I
I
P
P
74.25
74.1758
74.25
74.1758
SMPTE 274M
SMPTE 274M
SMPTE 274M
SMPTE 274M
1920 × 1080
1
Other standards are supported in the ED/HD nonstandard timing mode.
2
I = interlaced, P = progressive.
P
74.25
ITU-R BT.709-5
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