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LTC1264-7CS Datasheet(PDF) 7 Page - Linear Technology

Part # LTC1264-7CS
Description  Linear Phase, Group Delay Equalized, 8th Order Lowpass Filter
PDF  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1264-7CS Datasheet(HTML) 7 Page - Linear Technology

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7
LTC1264-7
CC
HARA TERISTICS
A
TYPICALPERFOR
CE
INPUT AMPLITUDE (VRMS)
50m
0.1
1
1264-7 G26
VS = SINGLE 5V
fCLK = 500kHz
fIN = 1kHz
–90
–80
–50
–70
–65
–55
–40
–45
–60
–75
–85
A
B
A. PIN 3 AT 2.5V
B. PIN 3 AT 2V
THD + Noise vs Input
TOTAL POWER SUPPLY VOLTAGE (V)
0
48
44
40
36
32
28
24
20
16
12
8
4
0
2
6
12
16
1264-7 G28
20
4
8
10
14
18
22 24
–55°C
25°C
125°C
fCLK = 1MHz
Power Supply Current vs Power
Supply Voltage
Table 1. Passband Gain and Phase
VS = ±7.5V, (fCLK/fC) = 25:1, TA = 25°C
FREQUENCY (kHz)
GAIN (dB)
PHASE (DEG)
fCLK = 1MHz (Typical Unit)
0.000
0.064
180.00
10.000
0.064
81.14
20.000
0.058
–19.18
30.000
– 0.639
–120.63
40.000
– 2.741
– 221.78
fCLK = 2MHz (Typical Unit)
0.000
– 0.006
180.00
20.000
– 0.006
79.42
40.000
– 0.164
– 22.13
60.000
– 0.958
–124.09
80.000
– 3.003
– 225.01
fCLK = 3MHz (Typical Unit)
0.000
– 0.067
180.00
30.000
– 0.067
77.49
60.000
– 0.287
– 25.54
90.000
– 0.944
– 128.51
120.000
– 2.545
– 230.19
fCLK = 4MHz (Typical Unit)
0.000
– 0.031
180.00
40.000
– 0.031
75.23
80.000
– 0.078
– 30.06
120.000
– 0.332
– 135.27
160.000
– 1.275
– 239.76
fCLK = 5MHz (Typical Unit)
0.000
0.073
180.00
50.000
0.073
71.77
100.000
0.365
– 37.11
150.000
0.686
– 146.19
200.000
0.521
– 255.85
Table 2. Passband Gain and Phase
VS = ±7.5V, (fCLK/fC) = 50:1, TA = 25°C
FREQUENCY (kHz)
GAIN (dB)
PHASE (DEG)
fCLK = 1MHz (Typical Unit)
0.000
– 0.048
180.00
5.000
– 0.048
84.51
10.000
– 0.351
– 10.87
15.000
– 1.253
– 105.53
20.000
– 3.348
– 199.61
fCLK = 2MHz (Typical Unit)
0.000
– 0.008
180.00
10.000
– 0.008
83.39
20.000
– 0.237
– 13.09
30.000
– 1.105
– 108.91
40.000
– 3.238
– 204.09
fCLK = 3MHz (Typical Unit)
0.000
0.044
180.00
15.000
0.044
81.04
30.000
– 0.065
– 18.64
45.000
– 0.863
– 118.48
60.000
– 3.022
– 217.67
fCLK = 4MHz (Typical Unit)
0.000
0.071
180.00
20.000
0.071
78.04
40.000
0.039
– 25.06
60.000
– 0.664
– 128.54
80.000
– 2.755
– 231.42
fCLK = 5MHz (Typical Unit)
0.000
0.089
180.00
25.000
0.089
74.36
50.000
0.141
– 32.41
75.000
– 1.437
– 139.33
100.000
– 2.421
– 246.01
Phase Matching vs Frequency
FREQUENCY (fCUTOFF/FREQUENCY)
0
3
4
5
0.8
1264-7 G27
2
1
0
0.2
0.4
0.6
1.0
PHASE DIFFERENCE BETWEEN
ANY TWO UNITS (SAMPLE OF
50 REPRESENTATIVE UNITS)
VS ≥ ±5V
fCLK ≤ 2.5MHz
(fCLK/fC) = 25:1 OR 50:1
TA = 0°C TO 70°C



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