參數(shù)資料
型號： XRD9824
廠商： Exar Corporation
英文描述： 14-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control
中文描述： 14位線性獨聯(lián)體/ CCD傳感器信號處理器與串行控制
文件頁數(shù)： 27/32頁
文件大小： 283K
代理商： XRD9824
XRD9824
27
Rev. 2.00
Serial Load Control Registers
The serial load registers are controlled by a three wire
serial interface through the bi-directional parallel port
to reduce the pin count of this device. When SYNCH
is set to high, the output bus is tri-stated and the serial
interface is activated. DB7/LD, DB5/SCLK and DB6/
SDATA are the three input signals that control this
process. The DB7/LD signal is set low to initiate the
loading of the internal registers.
There are internal registers that are accessed via an
11-bit data string. Data is shifted in on the rising edge
of SCLK and loaded to the registers on the rising edge
of LD. The data on pin DB6/SDATA is latched
automatically after eleven DB5/SCLKs have been
counted. If eleven clocks are not present on DB5/
SCLK before the DB7/LD signal returns high, no data
will be loaded into the internal registers. If more than
11 clocks are present on DB5/SCLK, the additional
clocks will be ignored. The data corresponding to the
first eleven DB5/SCLKs will be loaded only.
The first three MSBs choose which internal register will
be selected. The remaining 8 LSBs contain the data
needed for programming the internal register for a
particular configuration.
Power-Up State of the Internal Registers
The control register settings upon initial power-up are
for CIS, DC Coupled configuration (VRT is set to
internal, Input DC Reference=AGND and the input to
the ADC is selected through the RED channel). Gain
is unity and Offset is set to zero. The test modes are
disabled in the power-up state.
DB6/SDATA
DB5/SCLK
SYNCH
S2
S1
S0
D7
D2
D1
D0
DB7/LD
tdl
tdz
tsclkw
tds tdh
Figure 21. Write Timing
相關PDF資料
PDF描述
XRD9824ACD 14-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control
XRD9825 16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control
XRD9825ACD 16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control
XRD9825ACU 16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control
XRD9826ACD 16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control
相關代理商/技術參數(shù)
參數(shù)描述
XRD9824ACD 制造商:EXAR 制造商全稱:EXAR 功能描述:14-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control
XRD9824ACD-F 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
XRD9824ACU 功能描述:模數(shù)轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
XRD9825 制造商:EXAR 制造商全稱:EXAR 功能描述:16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control
XRD9825ACD 制造商:EXAR 制造商全稱:EXAR 功能描述:16-Bit Linear CIS/CCD Sensor Signal Processor with Serial Control
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