LTC1164-6(Rev0) 查看數據表（PDF） - Linear Technology
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LTC1164-6
(Rev.:Rev0)
(Rev.:Rev0)
Linear Technology
LTC1164-6 Datasheet PDF : 12 Pages
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LTC1164-6
TYPICAL APPLICATI S
8th Order Low Power, Clock-Tunable Elliptic Filter with
Active RC Input Anti-Aliasing Filter and Output Smoothing Filter
C2
0.022µF
R1
1.15k
VIN
C1
0.1µF
R2
R3
76.8k 5.62k
C3
0.001µF
+
1/2
LT1013
–
fC = 1kHz
ATTENUATION AT 10kHz = –48dB
NOTES:
1. CLOCK-TUNABLE OVER ONE DECADE
OF CUTOFF FREQUENCY.
2. BOTH INPUT AND OUTPUT RC ACTIVE
FILTERS ARE 0.1dB CHEBYSHEV FILTERS
WITH 1kHz RIPPLE BANDWIDTH.
1
14
2
13
3
12
V+
4 LTC1164-6 11
0.1µF 5
10
6
9
7
8
100Hz ≤ fC ≤ 1kHz
10kHz ≤ fCLK ≤ 100kHz
fCLK
V–
R1
16.9k
V–
0.1µF
R2
97.6k
C2
0.001µF
–
1/2
LT1013
+
C1
0.0047µF
fC = 1kHz
ATTENUATION AT 10kHz = –30dB
VOUT
1164-6 TA10
R1
789Ω
VIN
C1
0.01µF
5V
0.1µF 15k
+
1µF
10k
Single 5V, 16th Order Lowpass Filter
fCUTOFF = 10kHz
1
14
2
13
3
12
4 LTC1164-6 11
5
IC1
10
6
9
7
8
5V
5V
0.1µF
1
14
2
13
3
12
4 LTC1164-6 11
5
IC2
10
6
9
7
8
5V
R2
7.89k
VOUT
C2
0.001µF
VS = SINGLE 5V, IS = 5mA TYP
16TH ORDER LOWPASS FILTER
FIXED fCUTOFF, fCLK = 540kHz
fCUTOFF = 10kHz
(fCLK/fC) = 54:1
1/2πR1C1 = 1/2πR2C2 = 2fCUTOFF
1k
fCLK
Gain vs Frequency
10
0
– 10
– 20
– 30
– 40
– 50
– 60
VS = SINGLE 5V
IS = 5mA, 16TH ORDER
–70 ELLIPTIC LOWPASS
fCLK = 540kHz
–80 fCUTOFF = 10kHz
– 90
1
10
FREQUENCY (kHz)
30
1164-6 TA04
1164-6 TA03
THD + Noise vs Frequency
– 40
–45 VS = SINGLE 5V
IS = 5mA, 16TH ORDER
–50 ELLIPTIC LOWPASS
– 55
VIN = 0.5VRMS
fCLK = 540kHz
–60 fC = 10kHz
– 65
– 70
– 75
– 80
– 85
– 90
1
5
10
FREQUENCY (kHz)
1164-6 TA05
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
11
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