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參數(shù)資料
| 型號： | MAX7480 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Parallel-Load 8-Bit Shift Registers 20-LCCC -55 to 125 |
| 中文描述： | 八階、低通、巴特沃茲、開關(guān)電容濾波器 |
| 文件頁數(shù)： | 8/8頁 |
| 文件大小： | 87K |
| 代理商： | MAX7480 |
M
8th-Order, Lowpass, Butterworth,
S witc hed-Capac itor Filter
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8
_____________________Maxim Integrated Produc ts, 120 S an Gabriel Drive, S unnyvale, CA 94086 408-737-7600
1999 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
Anti-Aliasing and Post-DAC Filtering
When using the MAX7480 for anti-aliasing or post-DAC
filtering, synchronize the DAC and the filter clocks. If
the clocks are not synchronized, beat frequencies may
alias into the passband.
The high clock-to-corner frequency ratio (100:1) also
eases the requirements of pre- and post-SCF filtering.
At the input, a lowpass filter prevents the aliasing of fre-
quencies around the clock frequency into the pass-
band. At the output, a lowpass filter attenuates the
clock feedthrough.
A high clock to corner-frequency ratio allows a simple
RC lowpass filter, with the cutoff frequency set above
the SCF corner frequency to provide input anti-aliasing
and reasonable output clock attenuation.
Harmonic Distortion
Harmonic distortion arises from nonlinearities within the
filter. These nonlinearities generate harmonics when a
pure sine wave is applied to the filter input. Table 1 lists
the MAX7480’s typical harmonic-distortion values with
a 10k
load at T
A
= +25°C.
V
DD
V+ = +2.5V
V- = -2.5V
IN
CLK
GND
INPUT
OUTPUT
OUT
0.1
μ
F
CLOCK
*DRIVE SHDN TOV- FOR LOW-POWER SHUTDOWN MODE.
SHDN
COM
OS
0.1
μ
F
MAX7480
*
V+
V-
Figure 4. Dual-Supply Operation
5th
3rd
-89
-68
-93
-73
200
100
f
CLK
(kHz)
4th
2nd
-85
-91
TYPICAL HARMONIC DISTORTION (dB)
-82
-89
4
2
1
MAX7480
V
IN
(Vp-p)
f
C
(kHz)
FILTER
400
200
f
IN
(Hz)
Table 1. Typical Harmonic Distortion
TRANSISTOR COUNT: 1116
Chip Information
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX7480EPA | Parallel-Load 8-Bit Shift Registers 16-CDIP -55 to 125 |
| MAX7480ESA | Parallel-Load 8-Bit Shift Registers 16-CFP -55 to 125 |
| MAX748A | Synchronous 4-Bit Up/Down Binary Counters 20-LCCC -55 to 125 |
| MAX748AEWE | Circular Connector; No. of Contacts:26; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:17; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:17-26 RoHS Compliant: No |
| MAX763ACPA | 3.3V, Step-Down, Current-Mode PWM DC-DC Converters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX7480EPA | 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 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7480EPA+ | 功能描述:有源濾波器 8th-Order Lowpass Butterworth 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 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7480ESA | 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 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7480ESA+ | 功能描述:有源濾波器 8th-Order Lowpass Butterworth 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 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
| MAX7480ESA+T | 功能描述:有源濾波器 8th-Order Lowpass Butterworth 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 安裝風格:Through Hole 封裝 / 箱體:PDIP N 封裝:Tube |
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