Datasheet
LTC1064
13
1064fb
8th Order Chebyshev Lowpass Filter with a Passband
Ripple of 0.1dB and Cutoff Frequency up to 100kHz
TYPICAL APPLICATIO S
U
INV B
HPB/NB
BPB
LPB
SB
AGND
V
+
SA
LPA
BPA
HPA/NA
INV A
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
INV C
HPC/NC
BPC
LPC
SC
V
–
CLK
50/100
LPD
BPD
HPD
INV D
LTC1064
R22
R32
R42
R23
R33
R43
R13
R14
R12
R44
R34
R24
R11
V
IN
5V TO 8V
0.1µF
–5V TO –8V
5V TO 8V
V
OUT
1064 TA11
R41
R31
R21
0.1µF
RESISTOR VALUES:
R11 = 100.86k R21 = 16.75k R31 = 23.6k R41 = 99.73k
R12 = 25.72k R22 = 20.93k R32 = 45.2k R42 = 25.52k
R13 = 16.61k R23 = 10.18k R33 = 68.15k R43 = 99.83k
R14 = 13.84k R24 = 11.52k R34 = 17.72k R44 = 25.42k
FOR f
CLK
> 3MHz, ADD C2 = 10pF ACROSS R42
C3 = 10pF ACROSS R43
C4 = 10pF ACROSS R44
WIDEBAND NOISE = 170µV
RMS
f
CLK
= 5MHz
Amplitude Response
INPUT FREQUENCY (Hz)
10k
GAIN (dB)
15
0
–15
–30
–45
–60
–75
–90
–105
100k 1M
1064 TA12
V
S
= ±8V
f
CLK
= 5MHz
PASSBAND RIPPLE = 0.1dB