LTC6601CUF-2#TRPBF Linear Technology, LTC6601CUF-2#TRPBF Datasheet - Page 22

• Manufacturer Part Number: LTC6601CUF-2#TRPBF
• Description: IC FILTER/ADC DVR LP LD 20-QFN
• Manufacturer: Linear Technology

Specifications of LTC6601CUF-2#TRPBF

• Frequency - Cutoff Or Center: 27MHz
• Number Of Filters: 3
• Max-order: 2nd
• Voltage - Supply: 2.7 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 20-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Filter Type: -

LTC6601-2
A GALLERY OF BASIC FILTER TOPOLOGIES
Tables 2 through 10 list (sorted by Gain) a hundred possible
fi lter topologies that can be easily implemented with the
LTC6601. The tables also list the LTC6601-2 approximate
midband (1MHz) spot noise e
sistor, R1 (with the BIAS pin pulled to V
Table 2. Gain of 7 Filter Confi gurations
Table 3. Gain of 6 Filter Confi gurations
Table 4. Gain of 5 Filter Confi gurations
APPLICATIONS INFORMATION
22
V/V
V/V
V/V
7.0
7.0
7.0
7.0
6.0
6.0
6.0
6.0
6.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
GAIN
GAIN
GAIN
16.902
16.902
16.902
16.902
15.563
15.563
15.563
15.563
15.563
13.979
13.979
13.979
13.979
13.979
13.979
13.979
13.979
dB
dB
dB
f
f
f
O
O
o
10.38
10.38
11.36
10.38
9.57
8.96
8.12
9.57
8.67
8.12
7.47
9.40
8.67
8.12
7.98
7.47
6.96
(MHz)
(MHz)
(MHz)
in
referred to the input re-
f
f
f
–3dB
–3dB
–3dB
10.36
12.10
10.03
12.52
12.78
10.07
11.25
7.43
7.49
7.67
9.59
6.07
9.67
7.67
6.46
8.16
5.50
+
(MHz)
(MHz)
(MHz)
). The gains for
0.539
0.771
1.175
0.656
0.684
1.071
0.634
0.870
0.592
0.614
0.936
0.594
0.849
1.290
0.591
0.779
0.579
Q
Q
Q
these topologies range from 1V/V to 7V/V. The Qs listed
are within the range of 0.54 and 1.72. The f
in the range of 6.96MHz and 22.71MHz, and the –3dB
frequencies listed range from 5.5MHz to 27.5MHz. For
all fi lters listed, R3 = 125Ω. Figures 7 to 10 show how to
pin-strap each fi lter confi guration.
R1 (Ω)
R1 (Ω)
R1 (Ω)
57.14
57.14
57.14
57.14
66.67
66.67
66.67
66.67
66.67
80.00
80.00
80.00
80.00
80.00
80.00
80.00
80.00
R2 (Ω)
400.00
400.00
400.00
400.00
R2 (Ω)
400.00
400.00
400.00
400.00
400.00
R2 (Ω)
400.00
400.00
400.00
400.00
400.00
400.00
400.00
400.00
C1 (pF)
C1 (pF)
C1 (pF)
58.75
58.75
58.75
58.75
58.75
58.75
79.85
48.2
48.2
48.2
48.2
48.2
69.3
48.2
48.2
69.3
69.3
C2 (pF)
C2 (pF)
C
114.8
130.9
130.9
114.8
114.8
130.9
130.9
114.8
130.9
114.8
130.9
130.9
97.6
97.6
81.5
97.6
97.6
2
(pF)
O
s listed are
(nV/√Hz)
(nV/√Hz)
nV/√Hz
6.1
6.1
6.1
6.1
6.2
6.2
6.2
6.2
6.2
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
e
e
e
in
in
in
66012f