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參數資料
| 型號： | AD9826KRS |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 消費家電 |
| 英文描述： | Complete 16-Bit Imaging Signal Processor |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| 封裝： | 5.30 MM, SSOP-28 |
| 文件頁數： | 17/20頁 |
| 文件大小： | 159K |
| 代理商： | AD9826KRS |
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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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數字 輸出類型:數字 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） 供應商設備封裝:20-TSSOP 包裝:管件 |
| AD9826KRSZRL | 功能描述:IC IMAGE SGNL PROC 16BIT 28-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關文件:Automotive Product Guide 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數字 輸出類型:數字 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） 供應商設備封裝:20-TSSOP 包裝:管件 |
| AD9828JST | 制造商:Analog Devices 功能描述: |
| AD9828JSTRL | 制造商:Analog Devices 功能描述: |
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