PCM1808
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SLES177A–APRIL 2006–REVISED AUGUST 2006
TYPICAL PERFORMANCE CURVES OF INTERNAL FILTERS (Continued)
All specifications at TA = 25°C, VCC = 5 V, VDD = 3.3 V, master mode, fS = 48 kHz, system clock = 512 fS, 24-bit data, unless
otherwise noted.
DECIMATION FILTER FREQUENCY RESPONSE (Continued)
PASS-BAND RIPPLE CHARACTERISTICS
TRANSITION BAND CHARACTERISTICS
0.2
0.0
0
−1
−2
−3
−4
−5
−6
−7
−8
−9
−10
−0.2
−0.4
−0.6
−0.8
−1.0
–4.13 dB at 0.5 f
S
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.45 0.46 0.47 0.48 0.49 0.50 0.51 0.52 0.53 0.54 0.55
Normalized Frequency [× f ]
Normalized Frequency [× f ]
S
S
G003
G004
Figure 3.
Figure 4.
HIGH-PASS FILTER FREQUENCY RESPONSE
HPF STOP-BAND CHARACTERISTICS
HPF PASS-BAND CHARACTERISTICS
0.2
0.0
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
−0.2
−0.4
−0.6
−0.8
−1.0
0.0
0.1
0.2
0.3
0.4
0
1
2
3
4
Normalized Frequency [× f /1000]
Normalized Frequency [× f /1000]
S
S
G005
G006
Figure 5.
Figure 6.
7
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