PCM1800
SBAS071B–OCTOBER 2000–REVISED AUGUST 2008 ............................................................................................................................................... www.ti.com
TYPICAL PERFORMANCE CURVES FOR INTERNAL FILTERS
All specifications at TA = 25°C, VDD = VCC = 5 V, slave mode, fS = 44.1 kHz, 20-bit input data, and SYSCLK = 384 fS, unless
otherwise noted
DECIMATION FILTER
OVERALL CHARACTERISTICS
STOP-BAND ATTENUATION CHARACTERISTICS
0
−50
0
−25
−100
−150
−200
−50
−75
−100
0
8
16
24
32
0.00
0.25
0.50
0.75
1.00
Normalized Frequency [× f Hz]
Normalized Frequency [× f Hz]
S
S
G010
G011
Figure 10.
Figure 11.
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
0.45
0.47
0.49
0.51
0.53
0.55
Normalized Frequency [× f Hz]
Normalized Frequency [× f Hz]
S
S
G012
G013
Figure 12.
Figure 13.
All specifications at TA = 25°C, VDD = VCC = 5 V, slave mode, fS = 44.1 kHz, 20-bit input data, and SYSCLK = 384 fS, unless
10
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