參數(shù)資料
型號(hào): ADV7311KST
廠商: Analog Devices Inc
文件頁(yè)數(shù): 29/84頁(yè)
文件大?。?/td> 0K
描述: IC VID ENC 6-12BIT DAC'S 64LQFP
產(chǎn)品變化通告: ADV7xxx Obsolescence 16/Jan/2012
標(biāo)準(zhǔn)包裝: 1
類(lèi)型: 視頻編碼器
應(yīng)用: DVD,SD/HD
電壓 - 電源,模擬: 2.5V
電壓 - 電源,數(shù)字: 2.5V
安裝類(lèi)型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-LQFP(14x14)
包裝: 托盤(pán)
REV. A
ADV7310/ADV7311
–35–
HD TIMING RESET
A timing reset is achieved by toggling the HD timing reset control
bit [Subaddress 14h, Bit 0] from 0 to 1. In this state the horizontal
and vertical counters will remain reset. When this bit is set back
to 0, the internal counters will commence counting again.
The minimum time the pin has to be held high is one clock
cycle; otherwise, this reset signal might not be recognized. This
timing reset applies to the HD timing counters only.
Table V. Async Timing Mode Truth Table
Reference
P_HSYNC
P_VSYNC
P_BLANK*
Reference
in Figure 29
1
→ 0
0
0 or 1
50% point of falling edge of trilevel horizontal sync signal
a
00
→ 1
0 or 1
25% point of rising edge of trilevel horizontal sync signal
b
0
→ 1
0 or 1
0
50% point of falling edge of trilevel horizontal sync signal
c
10 or 1
0
→ 1
50% start of active video
d
10 or 1
1
→ 0
50% end of active video
e
*When async timing mode is enabled, P_BLANK, Pin 25, becomes an active high input. P_BLANK is set to active low at Address 10h, Bit 6.
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