LTC1067-50IGN View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1067-50IGN' PDF : 20 Pages View PDF
LTC1067/LTC1067-50
TYPICAL APPLICATIONS
1kHz Linear Phase Bandpass Filter
5V
R11
60.4k
VIN
R61
40.2k
0.1µF
R51
4.99k
R31, 56.2k
R21, 10k
1 V+
16
CLK
2 NC
15
AGND
3 V+
V– 14
4 SA
13
SB
5
LTC1067
LPA
LPB
12
6 BPA
11
BPB
7
10
HPA/NA HPB/NB
8 INV A
9
INV B
RB1, 36.5k
100kHz
–5V
0.1µF
R42, 80.6k
R32, 53.6k
R22, 10k
VS
±5V
MAXIMUM
FREQUENCY 5kHz
CENTER
5V (OR ±2.5V) 3V (OR ±1.5V)
2.5kHz
2.2kHz
VOUT
1067 TA06a
Gain and Group Delay vs Frequency
10
5
0
GAIN
–5
–10
3.0
DELAY
–15
2.5
–20
2.0
–25
1.5
–30
1.0
–35
0.5
–40
600
760 920 1080 1240
FREQUENCY (Hz)
0
1400
1067 TA06b
Sine Burst Response
INPUT
(500mV/DIV)
OUTPUT
(50mV/DIV)
5ms/DIV
1067 TA06c
Single Supply, 4th Order Bandpass Filter
fCENTER = fCLK/64, – 3dB BW = fCENTER/20
5V
R61
0.1µF
7.32k
1µF
R51
4.99k
R11
267k
VIN
R31, 255k
R21, 4.99k
1 V+
16
CLK
2 NC
15
AGND
3 V+
V– 14
4 SA
13
SB
5
LTC1067-50
LPA
LPB
12
6 BPA
11
BPB
7 HPA/NA
10
HPB/NB
8 INV A
9
INV B
RB1, 115k
64kHz
R52 R62
4.99k 8.66k
R32, 255k
R22, 4.99k
VS
SINGLE 5V
SINGLE 3.3V
SINGLE 3V
MAXIMUM fCENTER
12kHz
7.5kHz
5.5kHz
VS
SINGLE 5V
SINGLE 3.3V
SINGLE 3V
VOUT
NOISE
(FILTER INPUT AT V +/2)
426 µVRMS
333 µVRMS
290 µVRMS
1067 TA07a
18
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