LTC1068IG Linear Technology, LTC1068IG Datasheet - Page 24

• Manufacturer Part Number: LTC1068IG
• Description: IC FILTR BUILDNG BLK QUAD 28SSOP
• Manufacturer: Linear Technology

Specifications of LTC1068IG

• Filter Type: Universal Switched Capacitor
• Frequency - Cutoff Or Center: 50kHz
• Number Of Filters: 4
• Max-order: 8th
• Voltage - Supply: 3.14 V ~ 11 V, ±3.14 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LTC1068 Series
TYPICAL APPLICATIONS
V
5V
24
IN
R11 36.5k
Passband – 3dB at (0.8)(f
Low Power Applications. Maximum f
LTC1068-50 8th Order Linear Phase Bandpass, f
1.74k
1µF
R61
R43 12.1k
R33 26.7k
R31 30.1k
R41 10.7k
R21 10k
R23 10k
0.1µF
15.8K
4.99k
R51
R
L3
FilterCAD Custom Inputs for f
10
11
12
13
14
1
2
3
4
5
6
7
8
9
2nd ORDER SECTION
CENTER
INV B
HPB/NB
NC
NC
SA
LPA
BPA
HPA/NA
INV A
BPB
LPB
SB
AGND
V
+
LTC1068-50
R
R
H1
H3
Supply
U
) and (1.2)(f
18.2k
D
B
C
A
47.5k
HPC/NC
HPD/ND
INV C
INV D
CENTER
BPC
BPD
LPC
CLK
LPD
SC
NC
NC
SD
V
–
28
27
26
25
24
23
22
21
20
19
18
17
16
15
CENTER
= 25kHz with a Single 5V
11.6756
10.8117
f
8.7384
9.6415
O
(kHz)
CENTER
) for Single Supply
C
R44 22.1k
R34 28k
R24 10k
= 10kHz
R22 11.3k
R32 29.4k
R
R
R42 10k
H2
L2
= f
17.8k
84.5k
4.0091
4.6752
4.2066
3.6831
CLK
Q
1068 TA21
/40,
f
19.1786
16.0127
4.0678
N
V
400kHz
(kHz)
OUT
TYPE
HPN
LPN
LPN
BP
– 20
– 30
– 40
– 60
–10
– 50
– 70
– 80
10
0
MODE
2
2b
2n
2n
2
4
6
8
Gain vs Frequency
10 12
FREQUENCY (kHz)
14
16
18
20
22
24
1068 TA22
1068fb
26
28