Datasheet

AD9260
Rev. C | Page 7 of 44
DIGITAL FILTER CHARACTERISTICS
–120
–100
–80
–60
–40
–20
0
MAGNITUDE (dB)
0.4 0.60 0.2 0.8 1.0 1.2
FREQUENCY (NORMALIZED TO π)
00581-C-002
Figure 2. 8x FIR Filter Frequency Response
–120
–100
–80
–60
–40
–20
0
MAGNITUDE (dB)
0.4 0.60 0.2 0.8 1.0 1.2
FREQUENCY (NORMALIZED TO π)
00581-C-003
Figure 3. 4x FIR Filter Frequency Response
–120
–100
–80
–60
–40
–20
0
MAGNITUDE (dB)
0.4 0.60 0.2 0.8 1.0 1.2
FREQUENCY (NORMALIZED TO π)
00581-C-004
Figure 4. 2x FIR Filter Frequency Response
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
NORMALIZED OUTPUT RESPONSE
200 3000 100 400 500 600
CLOCK PERIODS (RELATIVE TO CLK)
00581-C-005
Figure 5. 8x FIR Filter Impulse Response
–0.2
0
0.2
0.4
0.6
0.8
1.0
NORMALIZED OUTPUT RESPONSE
CLOCK PERIODS (RELATIVE TO CLK)
0 102030405060708090100110
00581-C-006
Figure 6. 4x FIR Filter Impulse Response
–0.2
0
0.2
0.4
0.6
0.8
1.0
NORMALIZED OUTPUT RESPONSE
0 5 10 15 20 25
CLOCK PERIODS (RELATIVE TO CLK)
00581-C-007
Figure 7. 2x FIR Filter Impulse Response