ltc1164-6 Linear Technology Corporation, ltc1164-6 Datasheet - Page 10

• Manufacturer Part Number: ltc1164-6
• Description: Low Power 8th Order Pin Selectable Elliptic Or Linear Phase Lowpass Filter
• Manufacturer: Linear Technology Corporation

LTC1164-6
10
TYPICAL
V
V
0.1µF
IN
+
8th Order Elliptic Lowpass Filter (f
0.1µF
0.1µF
V
5V
V
IN
5V
IN
–10
–20
–30
–40
–50
–60
–70
–80
–90
10
0
789Ω
1µF
A
R1
8th Order 20kHz Cutoff, Elliptic Filter Operating with a Single 5V Supply and Driving 1k, 1000pF Load
1
0.01µF
0.1µF
+
PPLICATI
V
I
ELLIPTIC LOWPASS
f
f
S
CLK
CUTOFF
S
C1
= 5mA, 16TH ORDER
= SINGLE 5V
1
2
3
4
5
6
7
10k
6.65k
= 540kHz
Gain vs Frequency
= 10kHz
LTC1164-6
15k
10k
FREQUENCY (kHz)
1
2
3
4
5
6
7
LTC1164-6
1
2
3
4
5
6
7
14
13
12
11
10
O
9
8
LTC1164-6
10
U
Single 5V, 16th Order Lowpass Filter f
IC1
f
S
CLK
CLK
14
13
12
11
10
9
8
1164-6 TA04
/ f
f
CLK
C
5V
) = 100:1
1k
14
13
12
11
10
9
8
30
1164-6 TA07
0.1µF
V
1k
OUT
V
–
5V
f
= 1MHz
CLK
10k
5V
0.1µF
5V
51.1k
510pF
2
3
1
2
3
4
5
6
7
8th Order Linear Phase Lowpass Filter (f
–
+
LT1200
V
V
0.1µF
LTC1164-6
5V
IN
+
CUTOFF
7
4
IC2
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
1k
= 10kHz
1
14
13
12
11
10
9
8
THD + Noise vs Frequency
V
IS = 5mA, 16TH ORDER
ELLIPTIC LOWPASS
V
f
f
CLK
C
S
IN
= 10kHz
= SINGLE 5V
= 0.5V
1
2
3
4
5
6
7
= 540kHz
1000pF
V
7.89k
R2
LTC1164-6
OUT
RMS
5V
FREQUENCY (kHz)
V
16TH ORDER LOWPASS FILTER
FIXED f
f
(f
1/2πR1C1 = 1/2πR2C2 = 2f
CUTOFF
S
CLK
= SINGLE 5V, I
NOTES:
1. TOTAL SUPPLY CURRENT I
2. FLAT PASSBAND UP TO 18kHz,
3. THD + NOISE ≤ –70dB,
/f
(EXCLUDING OUTPUT LOAD CURRENT)
f
1V
C
1164-6 TA03
–3dB
C2
0.001µF
CUTOFF
) = 54:1
= 10kHz
P-P
14
13
12
11
10
9
8
V
= 20kHz
OUT
≤ V
, f
5
IN
CLK
f
S
CLK
≤ 3V
= 5mA TYP
= 540kHz
CLK
1164-6 TA05
P-P
, f
/ f
CUTOFF
IN
10
C
= 1kHz
) = 160:1
1164-6 TA08
0.1µF
V
S
V
OUT
= 4mA
–
1164-6 TA09
11646fa