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參數(shù)資料
| 型號： | AD7183 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Advanced Video Decoder with 10-Bit ADC and Component Input Support |
| 中文描述： | 先進的視頻解碼器，10位ADC和組件輸入支持 |
| 文件頁數(shù)： | 14/41頁 |
| 文件大小： | 484K |
| 代理商： | AD7183 |
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ADV7183
OUTPUT INTERFACE
Mode Selection Overview
The ADV7183 supports three output interfaces: LLC-compatible
synchronous pixel interface, the CAPI interface, and the SCAPI
interface. When the part is configured in the synchronous pixel
interface mode, pixel and control data are output synchronous with
LLC1 (8-bit mode) or LLC2 (16-bit mode). In this mode control
and timing information for field, vertical blanking, and horizontal
blanking identification may also be encoded as control codes.
When configured in CAPI or SCAPI mode only the active
pixel data is output synchronous with the CLKIN (asynchronous
FIFO clock). The pixels are output via a 512-pixel deep, 20-bit
wide FIFO. HACTIVE and VACTIVE are output on independent
pins. HACTIVE will be active during the active viewable period
of a video line and VACTIVE will be active during the active
viewable period of a video field. CAPI and SCAPI modes will
always output data in 16-bit, so this mode of operation cannot be
used when an 8-bit or 10-bit output interface is required. After
power-up, the ADV7183 will default to the LLC-compatible
8-bit CCIR656 4:2:2 @ LLC.
Synchronous Pixel Interface
When the output is configured for an 8-bit pixel interface, the
data is output on the pixel output port P[15:8]. In this mode,
8 bits of chrominance data will precede 8 bits of luminance
data. New pixel data is output on the pixel port after each
rising edge of LLC1. When the output is configured for a 16-
bit pixel interface, the luminance data is output on P[15:8]
and the chrominance data on P[7:0]. In this mode the data is
output with respect to LLC2. Figure 20 shows the basic timing
relationship for this mode.
PIXEL DATA
P15-8[7:0]
SAV
00
LLC1
LLC2
PIXEL DATA
P7-0[7:0]
SAV
FF
SAV
SAV
XY
Y0
Y1
Y2
Y3
Y4
Cb0
Cr0
Cb1
Cr1
Cb2
00
Figure 20. Synchronous Pixel Interface, 16-Bit Example
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