TYPICAL CHARACTERISTICS
(Cont.)
DIGITAL FILTER
OVERALL FREQUENCY CHARACTERISTIC
0
PASSBAND RIPPLE CHARACTERISTIC
0
–20
–0.2
–40
–0.4
dB
dB
–60
–0.6
–80
–0.8
–100
0 0.4536f
S
1.3605f
S
2.2675f
S
3.1745f
S
4.0815f
S
Frequency (Hz)
–1
0
0.1134f
S
0.2268f
S
Frequency (Hz)
0.3402f
S
0.4535f
S
DE-EMPHASIS FREQUENCY RESPONSE (44.1kHz)
0
–2
–4
–6
–8
–10
–12
0
5k
10k
15k
20k
25k
Frequency (Hz)
DE-EMPHASIS FREQUENCY RESPONSE (48kHz)
0
–2
–4
–6
–8
–10
–12
0
5k
10k
15k
20k
25k
Frequency (Hz)
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
0
Level (dB)
Error (dB)
DE-EMPHASIS ERROR (44.1kHz)
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
0
4999.8375
9999.675
Frequency (Hz)
DE-EMPHASIS ERROR (48kHz)
14999.5125
19999.35
Error (dB)
Level (dB)
5442
10884
Frequency (Hz)
16326
21768
PCM1727
SBAS077A
www.ti.com
5
TI [ TEXAS INSTRUMENTS ]
