參數(shù)資料
型號(hào)： AD9826
廠商： Analog Devices, Inc.
英文描述： Complete 16-Bit Imaging Signal Processor
中文描述： 完整的16位影像信號(hào)處理器
文件頁(yè)數(shù)： 17/20頁(yè)
文件大?。?/td> 159K
代理商： AD9826
AD9826
–17–
REV. A
Analog Inputs—
SHA Mode Operation
Figure 14 shows the analog input configuration for the SHA
mode of operation. Figure 15 shows the internal timing for the
sampling switches. T he input signal is sampled when CDSCLK 2
transitions from high to low, opening S1. T he voltage on the
OFFSET pin is also sampled on the falling edge of CDSCLK 2,
when S2 opens. S3 is then closed, generating a differential out-
put voltage representing the difference between the sampled
input voltage and the OFFSET voltage. T he input clamp is
disabled during SHA mode operation.
INPUT
SIGNAL
CML
CML
VINR
AD9826
OFFSET
S1
4pF
S3
S2
4pF
OPTIONAL DC
OFFSET (OR
CONNECT
TO GND)
VING
VINB
Figure 14. SHA-Mode Input Configuration (All Three
Channels Are Identical)
CDSCLK2
Q3
(INTERNAL)
S3 OPEN
S1, S2 OPEN
S1, S2 CLOSED
S1, S2 CLOSED
S3 CLOSED
S3 CLOSED
Figure 15. SHA-Mode Internal Switch Timing
Figure 16 shows how the OFFSET pin may be used in a CIS
application for coarse offset adjustment. Many CIS signals have
dc offsets ranging from several hundred millivolts to more than
1 V. By connecting the appropriate dc voltage to the OFFSET
pin, the CIS signal will be restored to “zero.” After the large dc
offset is removed, the signal can be scaled using the PGA to
maximize the ADC’s dynamic range.
SHA
SHA
SHA
VINR
VING
VINB
OFFSET
RED
GREEN
BLUE
VRED FROM
CIS MODULE
AVDD
R1
R2
DC OFFSET
RED-
OFFSET
GREEN-
OFFSET
BLUE-
OFFSET
AD9826
0.1 F
Figure 16. SHA-Mode Used with External DC Offset
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD9826_12 制造商:AD 制造商全稱:Analog Devices 功能描述:Complete 16-Bit Imaging Signal Processor
AD9826-EB 制造商:Analog Devices 功能描述:- Bulk
AD9826KRS 制造商:Analog Devices 功能描述:AFE Video 1ADC 16-Bit 5V 28-Pin SSOP Tube 制造商:Analog Devices 功能描述:IC 16-BIT SIGNAL PROCESSOR
AD9826KRSRL 制造商:Analog Devices 功能描述:AFE Video 1ADC 16-Bit 5V 28-Pin SSOP T/R
AD9826KRSZ 功能描述:IC IMAGE SGNL PROC 16BIT 28-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測(cè)器接口 系列:- 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:管件
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