LTC1064
20
1064fb
INPUT FREQUENCY (kHz)
10
GAIN (dB)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
20
30 40 50
1064 TA22
60 70
BW
V
S
= ±8V
f
CLK
= 4MHz
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
R14
R13
R44
R34
R24
8V
0.1µF
C3
C1
–8V
f
CLK
≤ 5MHz
V
OUT
V
IN1
1064 TA21
R12
R31
R21
RESISTOR VALUES:
R11 = 50k R21 = 5k R31 = 50k R
G
= 68.1k
R12 = 15.4k R22 = 10k R32 = 88.7k R42 = 48.7k R
L4
= 10k (0.1%)
R13 = 10k R23 = 10k R33 = 100k R
H4
= 10k (0.1%)
R14 = 9.09k R24 = 10k R34 = 63.4k R44 = 12.4k
R
L4
0.1%
0.1µF
R
G
R
H4
0.1%
R11
C2
–
+
LT1056
C1 = C2 = C3 = 15pF
THE NOTCH DEPTH FROM
5kHz TO 30kHz IS 50dB
WIDEBAND NOISE = 300µV
RMS
TYPICAL APPLICATIO S
U
RELATED PARTS
PART NUMBER DESCRIPTION COMMENT
LTC1061 Triple Universal Filter Building Block Three Filter Building Blocks in a 20-Pin Package
LTC1068 Series Quad Universal Building Blocks f
CLK
:f
O
= 25:1, 50:1, 100:1 and 200:1
LTC1164 Low Power, Quad Universal Filter Building Block Low Noise, Low Power Pin-for-Pin LTC1064 Compatible
LTC1264 High Speed, Quad Universal Building Block Up to 250kHz Center Frequency
Clock-Tunable, 30kHz to 90kHz 8th Order Notch Filter
Providing Notch Depth in Excess of 60dB
Amplitude Response
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 1989
LT/LT 0905 REV B • PRINTED IN USA
