Datasheet

LTC1068 Series
24
1068fc
TYPICAL APPLICATIONS
LTC1068 8th Order Linear Phase Bandpass, f
CENTER
= f
CLK
/100,
Passband –3dB at (0.7)(f
CENTER
) and (1.3)(f
CENTER
), Superior Sinewave
Burst Response, Maximum f
CENTER
= 60kHz with ±5V Supplies
FilterCAD Custom Inputs for f
C
= 10kHz
2nd ORDER SECTION f
0
(kHz) Q f
N
(kHz) Q
N
TYPE MODE
B 10.1389 0.7087 1.7779 HPN 3a
C 9.8654 0.5540 44.7214 LPN 3a
A 9.8830 0.5434 27.7227 LPN 3a
D 12.4097 1.5264 BP 3
Gain vs Frequency
24-Lead Package
INV B INV C
241
HPB/NB
HPC/NC
23
2
SB SC
205
R21
14.7k
R22
18.2k
BPB BPC
223
R31
10k
R32
10k
LPA LPD
169
R43
21.5k
R44
10k
BPA BPD
1510
R33
11.3k
R34
17.8k
HPA/NA HPD/ND
1411
INV A INV D
1312
R23
21k
R24
15.4k
LPB
LPC
214
R41
14.3k
R42
18.7k
R11
11k
V
IN
R
L1
348k
R
L2
10k
R
H2
200k
R
H1
11k
R
H3
95.3k
R
L3
12.4k
V
OUT
AGND V
–
196
V
+
f
CLK
18
7
SA SD
17
8
5V
–5V
1MHz
LTC1068
0.1µF
0.1µF
1068 TA19
FREQUENCY (kHz)
1
GAIN(dB)
10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
10 100
1068 TA20