Preliminary CDS 12-bit ADC Hot Pixel Clipper Pixel Averager + - + Coarse Accumulator Fine Accumulator Offset Calibration" />
參數(shù)資料
型號: XRD98L62EVAL
廠商: Exar Corporation
文件頁數(shù): 14/37頁
文件大?。?/td> 0K
描述: EVAL BOARD XRD98L62
標準包裝: 1
系列: *
21
Rev. P2.00
XRD98L62
Preliminary
CDS
12-bit ADC
Hot Pixel
Clipper
Pixel
Averager
+
-
+
Coarse
Accumulator
Fine
Accumulator
Offset Calibration Logic
12
PGA
Reg
Hold, FastCal
OB[7:0]
PGA[9:0]
DB[11:0]
CDAC
FDAC
+
Black Level
Offset Calibration
Loop
DNS[1:0]
ManCAL
CDAC, FDAC
From Serial
Interface
Registers
CCD
signal
OB Lines[7:0]
Wait[11:0]
DNS
Filter
Black Level Offset Calibration
Figure 8. Black Level Offset Calibration Block Diagram
Chip Reset
The chip includes a Power-On-Reset function (POR)
so when the power supplies are turned on the chip will
always power up with default values in all registers.
There are two methods to force a chip reset. The first
is to write a “1” to the RESET bit in the reset register.
This will reset the chip, and after a delay of about 10
ns, the reset bit will automatically clear itself. The
second reset method is to force the RESET pin high.
This will reset the chip until the RESET pin goes low
again. The RESET pin has an internal pull down.
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