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MAX7401 Datasheet(数据表) 6 Page - Maxim Integrated Products

部件型号  MAX7401
说明  8th-Order, Lowpass, Bessel, Switched-Capacitor Filters
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制造商  MAXIM [Maxim Integrated Products]
网页  http://www.maxim-ic.com
标志 MAXIM - Maxim Integrated Products

MAX7401 Datasheet(HTML) 6 Page - Maxim Integrated Products

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8th-Order, Lowpass, Bessel,
Switched-Capacitor Filters
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VDD = +5V for MAX7401, VDD = +3V for MAX7405; fCLK = 100kHz; SHDN = VDD; VCOM = VOS = VDD / 2; TA = +25°C; unless otherwise
noted.)
0.96
0.98
0.97
1.00
0.99
1.03
1.02
1.01
1.04
-40
0
-20
20
40
60
80
100
NORMALIZED OSCILLATOR FREQUENCY
vs. TEMPERATURE
TEMPERATURE (°C)
COSC = 390pF
MAX7405
MAX7401
-90
-70
-80
-50
-60
-40
-30
-10
-20
0
012
A
B
345
MAX7401
THD PLUS NOISE vs.
INPUT SIGNAL AMPLITUDE
AMPLITUDE (Vp-p)
NO LOAD
(SEE TABLE A)
-90
-70
-80
-50
-60
-40
-30
-10
-20
0
012345
MAX7401
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE AND RESISTIVE LOAD
AMPLITUDE (Vp-p)
RL = 500Ω
RL = 1kΩ
RL = 10kΩ
fIN = 200Hz
fC = 1kHz
MEASUREMENT BW = 22kHz
TRACE
fIN
(Hz)
fC
(kHz)
A
1000
5
B
200
1
fCLK
(kHz)
500
100
MEASUREMENT
BANDWIDTH (kHz)
80
22
Table A. THD Plus Noise vs. Input
Signal Amplitude Test Conditions
-90
-70
-80
-40
-50
-60
-10
-20
-30
0
0
1.0
0.5
1.5
2.0
2.5
3.0
MAX7405
THD PLUS NOISE vs.
INPUT SIGNAL AMPLITUDE
AMPLITUDE (Vp-p)
B
NO LOAD
(SEE TABLE A)
A
-90
-70
-80
-40
-50
-60
-10
-20
-30
0
0
1.0
0.5
1.5
2.0
2.5
3.0
MAX7405
THD PLUS NOISE vs. INPUT SIGNAL
AMPLITUDE AND RESISTIVE LOAD
AMPLITUDE (Vp-p)
fIN = 200Hz
fC = 1kHz
MEASUREMENT BW = 22kHz
RL = 500Ω
RL = 1kΩ
RL = 10kΩ




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