參數(shù)資料
型號(hào)： LTC6601IUF-2#PBF
廠商： Linear Technology
文件頁(yè)數(shù)： 25/40頁(yè)
文件大?。?/td> 0K
描述： IC DRVR FILTER/ADC LN 20-QFN
標(biāo)準(zhǔn)包裝： 91
頻率 - 截止或中心： 27MHz
濾波器數(shù)： 3
濾波器階數(shù)： 2nd
電源電壓： 2.7 V ~ 5.25 V
安裝類型： 表面貼裝
封裝/外殼： 20-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 20-QFN 裸露焊盤（4x4）
包裝： 管件
產(chǎn)品目錄頁(yè)面： 1323 (CN2011-ZH PDF)
LTC6601-2
31
66012f
APPLICATIONS INFORMATION
COMPLEX FILTER CONFIGURATIONS
A Modied 2nd Order Lowpass Filter Topology
The basic lter topology of Figure 3 can be modied as
shown in Figure 13. The Figure 13 circuit includes an
impedance path between the two summing nodes (the
circuit nodes common to resistors R1, R2 and R3). A
resistor and/or a capacitor connection between the sum-
ming nodes provide even more exibility, and enhance
the lter design options (the fO and Q equations shown
in Figure 13 reduce to equations of Figure 3 if C3 is zero
and R4 is innite).
The modied second order lter topology provides for
setting the Q value (with R4) without changing the fO
value and increasing the passband gain to greater than
one without changing the Q value (in the Q equation of
Figure 13 the value of Q does not change if the value of
the [1 + GAIN + 2(R2/R4)] denominator factor does not
change). Using R4 to set the Q value allows the option
to design the –3dB frequency (f3dB). If the Q value varies
and the fO value is constant then the f3dB frequency var-
ies in a second order lowpass function (refer to the f3dB
equation of Figure 13).
Figures 14 to 17 show additional circuits highlighting the
use of R4 or C3 in the modied second order cicuit to
set the f3dB frequency to 13MHz, 19MHz, 22.7MHz and
24.6MHz respectively.
The design procedure for a specied f3dB frequency is
as follows:
1 Using the chosen C1, C2 and C3 values calculate the
fO value.
2. Using fO of step 1 and the specied f3dB calculate the
Q value.
3. Calculate the R4 value using the Q value of step 3.
4. Calculate the required external resistor REXT value for
the R4 value in step 3. Example, in Figure 14 the Q
value for f3dB = 5MHz is 0.54, the required R4 resistor
is 350Ω, the R4A and R4B resistors are the internal
100Ω and the REXT resistor is 150Ω [REXT = R4 – (R4A
+ R4B)].
Note: The modied second order lter topology requires
the use of at least two of the three input resistor pairs (two
of the three 400Ω, 200Ω and 100Ω pairs).
相關(guān)PDF資料
PDF描述
VE-21Y-IW-F4 CONVERTER MOD DC/DC 3.3V 66W
LTC1067CGN#PBF IC FILTR BLDNGBLK R-R DUAL16SSOP
LTC1067CS#PBF IC FILTR BLDNGBLK R-R DUAL16SOIC
VE-21Y-IW-F1 CONVERTER MOD DC/DC 3.3V 66W
DS72612RP100FPV IC SUPERH MPU ROMLESS 176LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC6601IUF-2TRPBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Low Power, Low Distortion, 5MHz to 27MHz, Pin Confi gurable Filter/ADC Driver
LTC6602 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Matched, High Frequency Bandpass/Lowpass Filters
LTC6602CUF#PBF 功能描述:IC FILTER BANDPASS/LOWPASS 24QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR)
LTC6602CUF#TRPBF 功能描述:IC FILTER BANDPASS/LOWPASS 24QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 濾波器 - 有源 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1,000 系列:- 濾波器類型:連續(xù)時(shí)間，帶通低通 頻率 - 截止或中心:150kHz 濾波器數(shù):4 濾波器階數(shù):8th 電源電壓:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR)
LTC6602CUF-PBF 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Matched, High Frequency Bandpass/Lowpass Filters
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

*
*
*