LTC1068IG Linear Technology, LTC1068IG Datasheet - Page 21

• 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

TYPICAL APPLICATIONS
Passband – 3dB at (0.88)(f
V
LTC1068 8th Order Linear Phase Bandpass, f
IN
26.1k
R11
5V
4.99k
19.6k
12.1k
R21
R31
R41
10.7k
14.7k
4.99k
R43
R33
R23
14.7k
f
R
CENTER
L3
0.1µF
FilterCAD Custom Inputs for f
10
11
12
= 40kHz with ±5V Supplies
1
2
3
4
5
6
7
8
9
2nd ORDER SECTION
INV B
HPB/NB
BPB
LPB
SB
AGND
V
SA
LPA
BPA
HPA/NA
INV A
CENTER
+
63.4k
7.5k
LTC1068
R
R
H1
L1
U
) and (1.12)(f
B
C
A
D
40.2k
HPD/ND
HPC/NC
R
H3
INV C
INV D
BPD
BPC
LPD
LPC
CLK
SC
SD
V
–
24
23
22
21
20
19
18
17
16
15
14
13
1.28MHz
CENTER
4.99k
CENTER
R24
R52
4.99k
R54
4.99k
28.7k
11.3122
f
R34
8.2199
9.9188
8.7411
O
4.99k
21.5k
(kHz)
R22
R32
C
R64 17.8k
V
= 10kHz
). Maximum
= f
OUT
16.2k
R62
7.5k
R
CLK
B2
0.1µF
–5V
/128,
2.6702
3.3388
2.1125
5.0830
1068 TA15
Q
24-Lead Package
21.1672
f
4.4025
N
(kHz)
–10
–20
–30
–40
–50
–60
–70
–80
–90
TYPE
10
HPN
LPN
0
BP
BP
1
MODE
Gain vs Frequency
3a
1b
3a
1b
FREQUENCY (kHz)
LTC1068 Series
10
1068 TA16
100
21
1068fb