LTC1562 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1562' PDF : 28 Pages View PDF
TYPICAL APPLICATIONS (Advanced)
LTC1562
9th Order 22kHz Lowpass Elliptic Filter
RIN1A
140k
VIN
V+
RIN2 249k
RIN1B
69.8k
CIN1
390pF
RQ1 95.3k
R21 324k
CIN2 33pF
CIN3
27pF
1
INVB
2
V1B
3
V2B
20
INVC
19 RQ2 182k
V1C
18 R22 226k RIN3
V2C
536k
5 V+ LTC1562 V – 16
0.1µF
V–
R23 196k
RQ3 392k
6
SHDN
8
V2A
9
V1A
15
AGND
13 R24 649k
V2D
12 RQ4 66.5k
V1D
10
INVA
11
INVD
RIN4 301k
CIN4 56pF
1562 F14a
TO
PIN 10
V–
0.1µF
VOUT
SCHEMATIC INCLUDES PIN NUMBERS FOR 20-PIN PACKAGE.
PINS 4, 7, 14, 17 (NOT SHOWN) ALSO CONNECT TO V –
10
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
5
Amplitude Response
10
FREQUENCY (kHz)
50
1562 TA14b
Noise + THD vs Frequency
– 40
VIN = 1.65VRMS = 4.6VP-P
– 45 VS = ± 5V
– 50
– 55
– 60
– 65
– 70
– 75
– 80
– 85
– 90
1
10
20
FREQUENCY (kHz)
1562 TA14c
25
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