參數(shù)資料
型號(hào)： XRD9814B
廠商： Exar Corporation
英文描述： 3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors
中文描述： 3通道14/16-Bit線陣CCD /獨(dú)聯(lián)體傳感器信號(hào)處理器
文件頁(yè)數(shù)： 16/53頁(yè)
文件大?。?/td> 736K
代理商： XRD9814B
XRD9814B/9816B
16
Rev. 1.00
VSAMP Timing
This allows the user to select one of two VSAMP timing
controls. Timing Option #2 allows the rising edge of
VSAMP to occur approximately one-half ADCCLK
earlier than Option #1. This does not affect internal
timing and is provided only to allow additional flexibility
in the external timing control. Timing Option #2 is
available only in the 3-channel mode of operation (See
timing diagrams Figure 3 and Figure 4).
Configuration Register #2
The bit assignment and definition for this register is
detailed in the Configuration Register #2 Definition
Table. A diagnostic read-back mode allows gain,
offset and configuration data to be output as the 8 or 10
MSBs on the digital output bus depending on the
selection of OUTSEL (see Reading Register Data
session for details). Additional bits are used to enable
a low-power stand-by state and manufacturing test
mode.
Digital Reset
Setting this bit to one resets all registers to all zeros.
Test Mode
This is a reserved bit for testing and must be set to 0
in all writes to Configuration Register #2.
Stand-By Mode
Setting this bit to one forces the circuit into a low-power
standby mode. Configuration, offset and gain registers
remain unchanged in stand-by mode. Pull OEB High
to set DB<15:0> to high impedance during stand-by
mode.
Read Back Mode
This is a special diagnostic mode which can aid in the
debugging of new system designs. Setting this bit to 1
allows all configuration, gain and offset register con-
tents to be output on the data output bus (explained
below).
Reading Register Data
In order to enter read-back mode, set configuration
register #2, PB0 to 1. Follow the write timing in Figures
17 and 18.
In order to read a specific register, shift in 3-bits of
register address data (MSB first), followed by 10
dummy data bits. In the case of reading back configu-
ration register #2, PB0 has to stay 1 and cannot be a
dummy.
In order to exit read-back mode perform a write to
configuration register 2, PB0=0.
(OUTSEL = 0) In read-back mode the A/D output is
bypassed and internal register data is output to the 10
most significant bits of the data output bus. The
remaining LSB bits should be ignored. Register data
will be valid after the load pin goes high.
(OUTSEL = 1) In nibble mode, the output bus is limited
to 8-bits. Therefore, in read-back mode, the 8 MSBs
are valid when ADCCLK is high, and the 2 LSBs are
valid when ADCCLK is low. Configuring and exiting the
read-back mode is done in the same manner of
OUTSEL = 0.
Important:
The entire byte of register #2 is re-written when
exiting the readback mode. If any bits of configuration
register #2 were programmed prior to entering the read-
back mode, they must be re-programmed when exiting
read-back. See Figure 19 for read-back timing.
PGA Gain Settings
The gain for each color input is individually program-
mable from 1 to 10 in 1024 linear steps.
001 XXXXXXXXX1
010 XXXXXXXXXX
011 XXXXXXXXXX
100 XXXXXXXXXX
101 XXXXXXXXXX
110 XXXXXXXXXX
111 XXXXXXXXXX
Cfig2
Red Gain
Grn Gain
Blu Gain
Red Offset
Grn Offset
001 XXXXXXXXXX
Cfig1
Blu Offset
Address Data
Register
Read-Back Registers and Address
相關(guān)PDF資料
PDF描述
XRD9814BCV 3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors
XRD9816BCV 3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors
XRD9818 3-CHANNEL 16-BIT LINEAR CCD/CIS SENSOR SIGNAL PROCESSOR
XRD9818ACG 3-CHANNEL 16-BIT LINEAR CCD/CIS SENSOR SIGNAL PROCESSOR
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRD9814BCV 制造商:EXAR 制造商全稱:EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors
XRD9816ACV 制造商:EXAR 制造商全稱:EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors
XRD9816B 制造商:EXAR 制造商全稱:EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors
XRD9816BCV 制造商:EXAR 制造商全稱:EXAR 功能描述:3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors
XRD9816BCV-F 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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