參數(shù)資料
型號(hào)： XRD9816B
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)： 21/53頁(yè)
文件大小： 736K
代理商： XRD9816B
XRD9814B/9816B
21
Rev. 1.00
Minimum Capacitance (CDS Line Mode)
In general, the minimum value coupling capacitance is
limited by the amount of droop which can occur before
the input voltage range of the input amplifier is ex-
ceeded. The input capacitor droop is related to the
input bias current by:
Vdroop
Ibias n T
C
=
where I
= input bias current
n = number of pixels per line
T = pixel period
If the minimum input voltage is allowed to equal the 0V
input voltage of the XRD9814B/9816B, the maximum
allowable droop will be equal to the clamp level minus
the difference between the black and video levels. For
example, if Vc=4V, and the CCD video output is -2V
relative to the black level the maximum allowable
droop is equal to 2V.
Using the previous equation and assuming T=500ns,
n=3000
Note:
These are the absolute minimum capacitor require-
ments. As stated for pixel-mode, a minimum value of 68pF
is recommended.
Minimum Capacitance (S/H Line Mode)
Unlike Line or Pixel CDS modes voltage droop across
a line appears as an absolute error and is the dominant
factor in determining the minimum coupling capacitor
size.
C
Ibias n T
V
min =
× ×
e
Maximum Capacitance (S/H Line Mode)
The maximum capacitance is determined by the
amount of time allowed to charge the coupling capaci-
tor. In order to minimize the charging time, the maxi-
mum capacitor can be set to the minimum value as
previously calculated. In this case the time required to
charge the capacitor is:
(
)
t
Rs
Rc
C
Vr
Vc
V
=
+
×
-
min ln
e
where t = clamp pulse - width (
SYNCH
)
Rc = clamp resistance
Rs = signal source - resistance
Vr = input reference level
Vc = XRD9814B/9816B clamp voltage
V
ε
= error voltage
Cmin = coupling capacitor
Assuming that Vr=.5 Vc=0V, V
ε
=12.5uV, Rc=100
,
Rs=500
and C=1.2uF, the minimum clamp period is
equal to 1.9mS.
C
nA
ns
V
min =
×
×
10
3000 500
2
= 7.5pF
where I
=input bias current
n=number of pixels per line
Assuming n=3000, T=500nS, I=10nA and Ve=12.5uV,
the minimum required capacitor is 1.2uF.
相關(guān)PDF資料
PDF描述
XRD9814B 3-Channel 14/16-Bit Linear CCD/CIS Sensor Signal Processors
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
XRD9816EVAL 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 Eval Board for XRD9816BCV RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
XRD9818 制造商:EXAR 制造商全稱:EXAR 功能描述:3-CHANNEL 16-BIT LINEAR CCD/CIS SENSOR SIGNAL PROCESSOR
XRD9818ACG 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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*