VC0736 datasheet(18/127 Pages) NEXTCHIP

tên linh kiện	VC0736

Giải thích chi tiết về linh kiện	4-CH AHD2.0 RX and 9-CH Audio Codec

PDF	127 Pages

Scroll/Zoom	100%

nhà sản xuất	NEXTCHIP [NEXTCHIP Co,Ltd]

Trang chủ	https://www.nextchip.com/en/

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18 / 127 page

NVP6124

Data sheet

02.11.2015 (REV 0.2)

16/125

4-CH AHD2.0 RX and 9-CH Audio Codec

2.9. Output Format

NVP6124 supports a format of standard ITU-R BT.656/1120(like) Ports of 4 is synchronized by

each output clock(VCLK1~VCLK4). Phase of clock is controlled by VCLK_SEL(BANK1,

0xCC~0xCF[6:4]) and VCLK_DLY_SEL(BANK1, 0xCC~0xCF[3:0]).

2.9.1. ITU-R BT.656/1120(like) Format

Codes of SAV and EAV are injected into data stream of ITU-R BT.656/1120(like) to indicate a

start and a end of active. Note that a number of pixel for 1H active line is always constant

regardless of the actual incoming line length. Therefore, variance of analog input signal is

applied to a blank section except codes of EAV and SAV. Figure 2.7 shows data stream of

ITU-R BT.656/1120(like) format. If length of 1H of analog input signal increase or decrease,

number of pixel of 'A' increase or decrease.

VCLK

VDO[7:0]

FF’h

EAV Code

SAV Code

Active number of pixel Data

HACTIVE

00’h 00’h XY’h 80’h 10’h

80’h 10’h FF’h 00’h 00’h XY’h

Figure 2.7. Region of active is constant

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