Rainbow Electronics MAX7491 - Manual (Page 17)

MAX7490/MAX7491
Dual Universal Switched-Capacitor Filters
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NB/HPB
INVB INVA V IN
V DD
f CLK = 1MHz
NA/HPA
OUT
R1B
200k
R3B
200k
R2B
10k
R3A
200k
R2A
10k
R1
200k
LPA
BPA
LPB
BPB
C1
0.1
µF
C2
0.1
µF
SHDN
V DD
GND
SA SB
COM
EXTCLK
CLK
MAX7490
MAX7491
4TH-ORDER 10kHz
BANDPASS FILTER
-40
-30
-25
-20
-15
-10
-5
0
5
8 9 10 11 12
4TH-ORDER 10kHz BANDPASS FILTER
FREQUENCY RESPONSE
FREQUENCY (kHz)
GAIN (dB)
-35
Typical Application Circuit