Datasheet

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High-Pass Filter Frequency Response
Frequency [× f
S
/1000]
−1.0
−0.8
−0.6
−0.4
−0.2
0.0
0.2
0 1 2 3 4
Amplitude – dB
G005
Frequency [× f
S
/1000]
−100
−90
−80
−70
−60
−50
−40
−30
−20
−10
0
0.0 0.1 0.2 0.3 0.4
Amplitude – dB
G006
ANALOG FILTER
Antialiasing Filter Frequency Response (at PGA Gain = –5.5 dB)
−6.5
−6.4
−6.3
−6.2
−6.1
−6.0
−5.9
−5.8
−5.7
−5.6
−5.5
f – Frequency – kHz
Amplitude – dB
0.1 1 10 1k100
G007
−50
−45
−40
−35
−30
−25
−20
−15
−10
−5
0
f – Frequency – kHz
Amplitude – dB
1 10 100 10k1k
f
–3dB
= 300 kHz
G008
PCM1850A
PCM1851A
SLES173 – MARCH 2006
TYPICAL PERFORMANCE CURVES OF INTERNAL FILTER (continued)
All specifications at T
A
= 25 ° C, V
CC
= 5 V, V
DD
= 3.3 V, master mode, f
S
= 48 kHz, system clock = 256 f
S
, 24-bit data (unless
otherwise noted).
AMPLITUDE AMPLITUDE
vs vs
FREQUENCY FREQUENCY
Figure 5. HPF Pass-Band Characteristics Figure 6. HPF Stop-Band Characteristics
AMPLITUDE AMPLITUDE
vs vs
FREQUENCY FREQUENCY
Figure 7. Antialiasing Filter Pass-Band Figure 8. Antialiasing Filter Stop-Band
Characteritics Characteritics
10
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