參數(shù)資料
型號(hào): MAX7490EEE+
廠商: Maxim Integrated Products
文件頁數(shù): 4/18頁
文件大小: 0K
描述: IC FILTER SW CAP DUAL 16-QSOP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 100
濾波器類型: 通用開關(guān)電容器
頻率 - 截止或中心: 40kHz
濾波器數(shù): 2
濾波器階數(shù): 2nd
電源電壓: 4.5 V ~ 5.5 V
安裝類型: 表面貼裝
封裝/外殼: 16-SSOP(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-QSOP
包裝: 管件
產(chǎn)品目錄頁面: 1424 (CN2011-ZH PDF)
MAX7490/MAX7491
Dual Universal Switched-Capacitor Filters
12
______________________________________________________________________________________
Mode 2 Design Equations
Mode 2N
Figure 5 shows the configuration of Mode 2N. This
mode extends the topology of Mode 3A to Mode 2,
where the highpass and lowpass outputs are summed
through two external resistors, RH and RL, to create a
lowpass notch filter that has higher frequency than the
one in Mode 2. Mode 2 is most useful in lowpass elliptic
designs. When cascading the sections of the
MAX7490/MAX7491, the highpass and lowpass outputs
can be summed directly into the inverting input of the
next section. Only one external op amp is needed.
Mode 2N Design Equations
f
R
f
fR
R
Q
R
Hf
Hz
R
RR
O
CLK
n
CLK
H
L
ON
G
H
G
L
=+
→=
+
+
100
1
2
4
100
1
3
2
1
2
4
0
2
1
4
42
1()
f
R
f
Q
R
H
R
RR
H
R
Hf
Hz
R
RR
Hat f
f
R
O
CLK
n
CLK
OLP
OBP
ON
CLK
=+
=
=+
=
+
=
→=
+
==
100
1
2
4
100
3
2
1
2
4
2
1
4
42
3
1
0
2
1
4
42
2
1
2
()
(/ )
Σ
LP
BP
S
HP/N
R3
R4
R2
R1
VIN
CC
COM
LOWPASS
NOTCH
OUTPUT
+
-
RH
RL
RG
Figure 5. Mode 2N, 2nd-Order Filter Providing a Lowpass Notch Output
Σ
LP
BP
S
HP/N
R3
R4
R2
R1
VIN
CC
COM
+
-
Figure 4. Mode 2, 2nd-Order Filter Providing a Highpass
Notch, Bandpass, and Lowpass Outputs
相關(guān)PDF資料
PDF描述
MAX292CSA+ IC FILTER LOWPASS 8-SOIC
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參數(shù)描述
MAX7490EEE+ 功能描述:有源濾波器 Dual Universal Switched-Cap RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube
MAX7490EEE+T 功能描述:有源濾波器 Dual Universal Switched-Cap RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube
MAX7490EEE-T 功能描述:有源濾波器 RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube
MAX7491CEE 功能描述:有源濾波器 RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube
MAX7491CEE+ 功能描述:有源濾波器 Dual Universal Switched-Cap RoHS:否 制造商:Maxim Integrated 通道數(shù)量:1 截止頻率:150 KHz 電源電壓-最大:11 V 電源電壓-最小:4.74 V 最大工作溫度:+ 85 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube