參數(shù)資料
型號: VSP2265
英文描述: 10-Bit. 25 Msps CCD Signal Processor for Digital Cameras with V/H Timing Generator
中文描述: 10位。 25 Msps的CCD信號處理器為數(shù)碼相機與V /小時時序發(fā)生器
文件頁數(shù): 28/87頁
文件大小: 1303K
代理商: VSP2265
Theory of Operation
24
SLES056
December 2002
VSP2265
2.23 TG Pixel-Rate Operation
2.23.1
High-Speed Pulse Adjustment
For a high-speed pulse, the CCD signal sampling time is adjustable (see serial data addresses from 001100
to 010111). The default value is set as follows.
R
SHP (Default)
CCD
SHP (Adjustment)
SHD (Default)
SHD (Adjustment)
0 ns
8.2~14.8 ns
(25-MHz Operation)
1.2~10.2 ns
15.2~24.2 ns
24.2~33.2 ns 35.2~44.2 ns
2.23.2
Default Timing Value
R: Standard reset duration is 25% of cycle.
SHP: Standard rise point is 50% of cycle, based on a 3-ns CCD signal delay. Actual delay depends on
the system.
SHD: Standard rise point is 100% of cycle, based on a 3-ns CCD signal delay. Actual delay depends on
the system.
H1: Standard duration is 50% of cycle.
H1 and H2 are complementary. The crossover point of the H1 rising edge and H2 falling edge should be
higher than VDD/2.
H2: Standard duration is 50% of cycle.
ADCCK: Standard rise and fall points are 25% and 75% of cycle respectively, based on a 3-ns CCD signal
delay.
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