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參數(shù)資料
| 型號： | MAX7491EEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運(yùn)動控制電子 |
| 英文描述： | 4-Bit D-type Registers with 3-State Outputs 16-CDIP -55 to 125 |
| 中文描述： | DUAL SWITCHED CAPACITOR FILTER, BUTTERWORTH/BESSEL/ELLIPTIC, UNIVERSAL, PDSO16 |
| 封裝： | 0.150 INCH, 0.025 INCH PITCH, QSOP-16 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大?。?/td> | 343K |
| 代理商： | MAX7491EEE |
M
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, R
H
and R
L
, 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
f
R
R
R
R
f
f
Q
R
R
R
R
H
f
Hz
0
R
R
R
R
R
R
R
R
R
O
CLK
100
n
CLK
100
H
L
ON
G
H
G
L
=
+
=
+
=
+
→
=
+
+
1
2
4
1
3
2
1
2
4
2
1
4
4
2
1
(
)
f
f
R
R
f
f
Q
R
R
R
R
H
R
R
R
R
R
R
R
H
H
f
Hz
0
R
R
R
R
R
H
at f
(
f
R
O
CLK
100
n
CLK
100
3
2
OLP
OBP
ON
ON
CLK
=
+
=
=
+
=
+
=
→
=
+
=
=
1
2
4
1
2
4
2
1
3
1
4
4
2
2
1
4
4
2
2
2
1
2
(
)
/ )
Σ
∫
∫
LP
BP
S
HP/N
R3
R4
R2
R1
V
IN
C
C
COM
COM
LOWPASS
NOTCH
OUTPUT
+
-
R
H
R
L
R
G
Figure 5. Mode 2N, 2nd-Order Filter Providing a Lowpass Notch Output
Σ
∫
∫
LP
BP
S
HP/N
R3
R4
R2
R1
VIN
C
C
COM
+
-
Figure 4. Mode 2, 2nd-Order Filter Providing a Highpass
Notch, Bandpass, and Lowpass Outputs
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7491EEE+ | 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 |
| MAX7491EEE+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 |
| MAX7491EEE-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 |
| MAX749C/D | 功能描述:顯示驅(qū)動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| MAX749CPA | 功能描述:顯示驅(qū)動器和控制器 Digitally Adjustable LCD Bias Supply RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
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