LTC1064CSW View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1064CSW' PDF : 20 Pages View PDF
TYPICAL APPLICATIO S
Dual 4th Order Bessel Filter with 140kHz Cutoff Frequency
R12
VIN1
8V
R11
VIN2
R22
R32
R42
0.1µF
R41
R31
R21
R13
1 INV B
INV C 24
2 HPB/NB HPC/NC 23
R23
3 BPB
BPC 22
R33
4 LPB
LPC 21
R43
5 SB
SC 20
6 AGND
V– 19
7 V+
8 SA
LTC1064 CLK 18
7MHz
CLOCK
50/100 17 8V
9 LPA
10 BPA
11 HPA/NA
12 INV A
LPD 16
BPD 15
R44
HPD 14
R34
INV D 13
R24
R14
VOUT1
–8V
0.1µF
VOUT2
RESISTOR VALUES:
R11 = 14.3k R21 = 13k
R12 = 15.4k R22 = 15.4k
R13 = 3.92k R23 = 20k
R14 = 3.92k R24 = 20k
R31 = 7.5k
R32 = 7.5k
R33 = 27.4k
R34 = 6.8k
WIDEBAND NOISE = 64µVRMS
R41 = 10k
R42 = 10k
R43 = 40k
R44 = 10k
1064 TA15
8th
Order
Linear
Phase
(Bessel)
Filter
with
fCLK
f –3dB
=
65
1
R11
VIN1
5V TO 8V
FROM R13
PIN 20
R21
R31
R41
0.1µF
R43
R33
R23
R12
1 INV B
INV C 24
2 HPB/NB HPC/NC 23
R22
3 BPB
BPC 22
R32
4 LPB
LPC 21
R42
5 SB
SC 20
6 AGND
V– 19
7 V+
8 SA
LTC1064 CLK 18
fCLK
≤ 7MHz
50/100 17 TO V+
9 LPA
10 BPA
11 HPA/NA
12 INV A
LPD 16
BPD 15
R44
HPD 14
R34
INV D 13
R24
R14
TO R13
–5V TO –8V
0.1µF
VOUT
RESISTOR VALUES:
R11 = 34.8k R21 = 34.8k
R12 = 10.5k R22 = 45.3k
R13 = 12.7k R23 = 34.8k
R14 = 20k R24 = 34.8k
R31 = 14.3k
R32 = 22.1k
R33 = 24.3k
R34 = 13.3k
WIDEBAND NOISE = 70µVRMS
R41 = 40.2k
R42 = 39.2k
R43 = 20k
R44 = 20k
1064 TA17
LTC1064
Amplitude Response
15
0
– 15
–30
–45
–60
–75
–90 VS = ±8V
fCLK = 7MHz
–105
10k
100k
INPUT FREQUENCY (Hz)
1M
1064 TA16
Amplitude Response
15
0
– 15
–30
–45
–60
–75 VS = ±8V
fCLK = 4.5MHz
–90 fCLK = 50% DUTY CYCLE
f–3dB = 70kHz
–105
10k
100k
INPUT FREQUENCY (Hz)
1M
1064 TA18
1064fb
15
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