參數(shù)資料
型號(hào): AD9821KST
廠(chǎng)商: ANALOG DEVICES INC
元件分類(lèi): ADC
英文描述: Complete 12-Bit 40 MSPS Imaging Signal Processor
中文描述: 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP48
封裝: 1.40 MM, PLASTIC, MS-026BBC, LQFP-48
文件頁(yè)數(shù): 8/16頁(yè)
文件大小: 277K
代理商: AD9821KST
REV. 0
–8–
AD9821
IMAGER MODE AND AUX MODE TIMING
DATACLK
OUTPUT
DATA
VIN+
N
N+1
N+2
N+8
N+9
N–10
N–9
N–8
N–1
N
t
OD
t
H
VIN–
NOTES:
1. VIN+ AND VIN– SIGNALS ARE SAMPLED AT DATACLK RISING EDGES (CAN BE INVERTED USING THE CONTROL REGISTER).
2. INTERNAL SAMPLING DELAY (APERTURE)
t
ID
IS TYPICALLY 3 ns.
3. OUTPUT DATA LATENCY IS NINE DATACLK CYCLES.
t
CONV
t
ID
Figure 5. Imager Mode Timing
IMAGER
SIGNAL
EFFECTIVE PIXELS
CLPOB
OPTICAL BLACK PIXELS
HORIZONTAL
BLANKING
EFFECTIVE PIXELS
PBLK
NOTES:
1. CLPOB WILL OVERWRITE PBLK. PBLK WILL NOT AFFECT CLAMP OPERATION IF OVERLAPPING CLPOB.
2. PBLK SIGNAL IS OPTIONAL.
3. DIGITAL OUTPUT DATA WILL BE ALL ZEROS DURING PBLK. OUTPUT DATA LATENCY IS NINE DATACLK CYCLES.
OUTPUT
DATA
EFFECTIVE PIXEL DATA
OB PIXEL DATA
EFFECTIVE DATA
Figure 6. Typical Imager Mode Line Clamp Timing
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