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參數(shù)資料
| 型號： | XRD98L62EVAL |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 21/37頁 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD XRD98L62 |
| 標準包裝： | 1 |
| 系列： | * |
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XRD98L62
28
Rev. P2.00
Preliminary
Figure 17. Pixel Rate Clock Timing with RSTreject=1
CCD Signal
SBLK
SPIX
ADCLK
Reset Reject
Switches Turn OFF
Video
Level
φ3
Black
Level
Aperture delays
One of the most difficult tasks in designing a digital
camera is optimizing the pixel timing for the CCD, CDS
and ADC. We have included the programmable aper-
ture delay function to help simplify this job.
There are two serial interface registers, DelayA &
DelayB, used to program the aperture delays. Each
register is divided into 3 delay parameters. Each delay
parameter is 3 bits wide. Each delay parameter can be
set to add from 0ns to 7ns of delay.
The delays are added to the clock signals after the
polarity control. This means the definition of leading
edge and trailing edge depends on the polarity control
bit for each clock. For the default case, SBLKpol=0 &
SPIXpol=0, the leading edge is the falling edge and the
trailing edge is the rising edge.
DelayA[2:0] controls the delay added to the leading
edge of SBLK.
This positions the falling edge of
internal signal
φ1.
DelayA[5:3] controls the delay added to the trailing
edge of SBLK. This positions the rising edge of
internal signal
φ1.
DelayB[2:0] controls the delay added to the leading
edge of
φ2. This positions the falling edge of internal
signal
φ2.
DelayB[5:3] controls the delay added to the trailing
edge of SPIX. This positions the rising edge of
internal signal
φ2.
DelayB[8:6] is only used when SPIXopt=0. It controls
the delay from the trailing edge of SBLK to the start
of the internal
φ2 control. This delay is in addition to
DelayA[5:3], the SBLK trailing edge delay.
DelayA[8:6] controls the delay added to ADCLK. This
is a simple delay, it adds the same delay to both the
rising and falling edges of ADCLK to create
φ4.
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| XRD98L62ZEVAL | 功能描述:數(shù)據轉換 IC 開發(fā)工具 Eval Board (Solder) XRD98L62AIV RoHS:否 制造商:Texas Instruments 產品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
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| XRD98L63AIVTR-F | 制造商:Exar Corporation 功能描述:AFE General Purpose 1ADC 12-Bit 3V 48-Pin TQFP T/R 制造商:Exar Corporation 功能描述:XRD98L63AIVTR-F |
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