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LT10647FB_15 Datasheet, PDF (8/16 Pages) Linear Technology – Linear Phase, 8th Order Lowpass Filter
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LTC1064-7
TYPICAL PERFOR A CE CHARACTERISTICS
Table 1. Passband Gain and Phase
VS = ±7.5V, (fCLK/ fC) = 50:1, TA = 25°C
FREQUENCY (kHz)
fCLK = 1MHz (Typical Unit)
0.000
5.000
10.000
15.000
20.000
fCLK = 2MHz (Typical Unit)
0.000
10.000
20.000
30.000
40.000
GAIN (dB)
– 0.086
– 0.086
– 0.334
– 1.051
– 3.316
– 0.131
– 0.131
– 0.442
– 1.108
– 3.115
fCLK = 3MHz (Typical Unit)
0.000
15.000
30.000
45.000
60.000
fCLK = 4MHz (Typical Unit)
0.000
20.000
40.000
60.000
80.000
fCLK = 5MHz (Typical Unit)
0.000
25.000
50.000
75.000
100.000
– 0.156
– 0.156
– 0.459
– 0.941
– 2.508
– 0.121
– 0.121
– 0.292
– 0.476
– 1.539
– 0.045
– 0.045
– 0.006
0.185
– 0.356
Table 2. Passband Gain and Phase
VS = ±7.5V, (fCLK/ fC) = 100:1, TA = 25°C
FREQUENCY (kHz)
fCLK = 1MHz (Typical Unit)
0.000
2.500
5.000
7.500
10.000
fCLK = 2MHz (Typical Unit)
0.000
5.000
10.000
15.000
20.000
fCLK = 3MHz (Typical Unit)
0.000
7.500
15.000
22.500
30.000
GAIN (dB)
– 0.203
– 0.203
– 0.741
– 1.831
– 4.451
– 0.152
– 0.152
– 0.575
– 1.501
– 3.973
– 0.123
– 0.123
– 0.481
– 1.312
– 3.654
PHASE (DEG)
180.00
73.54
– 33.60
– 140.81
– 249.30
180.00
72.88
– 34.71
– 141.99
– 250.45
180.00
72.54
– 35.01
– 141.95
– 250.53
180.00
72.12
– 35.75
– 142.92
– 252.63
180.00
70.85
– 38.25
– 146.77
– 259.27
PHASE (DEG)
180.00
74.07
– 31.71
– 136.47
– 240.17
180.00
73.79
– 32.47
– 138.11
– 243.84
180.00
73.32
– 33.64
– 140.14
– 247.11
FREQUENCY (kHz)
fCLK = 4MHz (Typical Unit)
0.000
10.000
20.000
30.000
40.000
fCLK = 5MHz (Typical Unit)
0.000
12.500
25.000
37.500
50.000
GAIN (dB)
– 0.116
– 0.116
– 0.436
– 1.171
– 3.353
– 0.097
– 0.097
– 0.351
– 0.951
– 2.999
Table 3. Passband Gain and Phase
VS = ±5V, (fCLK/ fC) = 50:1, TA = 25°C
FREQUENCY (kHz)
fCLK = 0.5MHz (Typical Unit)
0.000
2.500
5.000
7.500
10.000
fCLK = 1MHz (Typical Unit)
0.000
5.000
10.000
15.000
20.000
fCLK = 1.5MHz (Typical Unit)
0.000
7.500
15.000
22.500
30.000
fCLK = 2MHz (Typical Unit)
0.000
10.000
20.000
30.000
40.000
fCLK = 2.5MHz (Typical Unit)
0.000
12.500
25.000
37.500
50.000
fCLK = 3MHz (Typical Unit)
0.000
15.000
30.000
45.000
60.000
GAIN (dB)
– 0.081
– 0.081
– 0.345
– 1.063
– 3.283
– 0.071
– 0.071
– 0.322
– 1.036
– 3.284
– 0.095
– 0.095
– 0.392
– 1.075
– 3.155
– 0.127
– 0.127
– 0.447
– 1.041
– 2.856
– 0.126
– 0.126
– 0.411
– 0.864
– 2.397
– 0.102
– 0.102
– 0.292
– 0.546
– 1.769
8
PHASE (DEG)
180.00
72.49
– 35.21
– 142.33
– 250.12
180.00
71.00
– 38.08
– 146.51
– 256.13
PHASE (DEG)
180.00
73.71
– 33.31
– 140.36
– 248.52
180.00
73.44
– 33.83
– 141.13
– 249.68
180.00
73.03
– 34.53
– 141.89
– 250.45
180.00
72.81
– 34.70
– 141.77
– 250.24
180.00
72.61
– 34.91
– 141.88
– 250.62
180.00
72.23
– 35.64
– 142.96
– 252.73
10647fb
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