LTC1064
典型应用
双4阶贝塞尔滤波器具有140kHz截止频率
R13
R12
V
IN1
R22
R32
R42
1
2
3
4
5
6
8V
0.1F
7
8
9
R41
R31
R11
V
IN2
R21
10
11
12
INV B
HPB / NB
BPB
LPB
SB
AGND
V
+
SA
LPA
BPA
HPA / NA
INV一
LTC1064
INV
HPC / NC
BPC
LPC
SC
V
–
CLK
24
23
22
21
20
19
R23
R33
15
0
– 15
增益（dB ）
18 7MHz的
时钟
17
50/100
8V
16
LPD
R44
15
BPD
R34
14
HPD
R24
13
INV
R14
电阻值：
R11 = 14.3k R21 = 13K
R12 = 15.4k R22 = 15.4k
R13 = R23 3.92k = 20K
R14 = 3.92k R24 = 20K
R31 = 7.5K
R32 = 7.5K
R33 = 27.4k
R34 = 6.8K
宽带噪声= 64μV
RMS
8阶线性相位（贝塞尔）与过滤器
R11
V
IN1
R21
R31
R41
1
2
3
4
5
6
INV B
HPB / NB
BPB
LPB
SB
AGND
V
+
SA
LPA
BPA
HPA / NA
INV一
LTC1064
HPC / NC
BPC
LPC
SC
V
–
CLK
增益（dB ）
5V至8V
0.1F
7
8
9
R43
R33
10
11
12
从
20 PIN
R13
R23
电阻值：
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
宽带噪声= 70μV
RMS
14
U
振幅响应
R43
V
OUT1
–8V
0.1F
–30
–45
–60
–75
–90
V
S
=
±8V
f
CLK
= 7MHz的
100k
输入频率（Hz）
1M
1064 TA16
V
OUT2
–105
10k
R41 = 10K
R42 = 10K
R43 = 40K
R44 = 10K
1064 TA15
f
CLK
65
=
f
–3dB
1
R12
15
0
– 15
–30
–45
–60
–75
–90
–105
10k
振幅响应
INV
24
23
22
21
20
19
18
17
16
15
14
13
R44
R34
R24
R14
f
CLK
≤7MHz
到V
+
R22
R32
R42
TO R13
-5V TO -8V
0.1F
50/100
LPD
BPD
HPD
INV
V
OUT
V
S
=
±8V
f
CLK
= 4.5MHz
f
CLK
50％的占空比
f
–3dB
=为70kHz
100k
输入频率（Hz）
1M
1064 TA18
R41 = 40.2k
R42 = 39.2k
R43 = 20K
R44 = 20K
1064 TA17
