3.3.3 Digital Filter Characteristics
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ADC Filter Characteristics ( TI DSP 250 f Mode Operation )
s
Passband
0.05 dB
0.416 f
Hz
Hz
dB
dB
s
Stopband
−6 dB
0.5 f
s
Passband ripple
Stopband attenuation
0.05
f > 0.584 f
−60
s
ADC Filter Characteristics ( TI DSP 272 f and Normal Mode Operation )
s
Passband
0.05 dB
−6 dB
0.4535 f
s
Hz
Hz
dB
dB
Stopband
0.5 f
s
Passband ripple
0.05
Stopband attenuation
ADC High-Pass Filter Characteristics
f > 0.5465 f
−60
s
−3 dB,
f
f
f
f
f
f
= 44.1 kHz
= 48 kHz
3.7
4.0
Hz
Hz
Hz
Hz
Hz
Hz
s
−3 dB,
s
s
s
s
s
−0.5 dB,
−0.5 dB,
−0.1 dB
−0.1 dB,
= 44.1 kHz
= 48 kHz
10.4
11.3
21.6
23.5
Corner frequency
= 44.1 kHz
= 48 kHz
DAC Filter Characteristics (48-kHz Sampling Rate)
Passband
0.03 dB
−6 dB
0.416 f
Hz
Hz
dB
dB
s
Stopband
0.5 f
s
Passband ripple
0.03
0.03
Stopband attenuation
f > 0.584 f
−50
s
DAC Filter Characteristics (44.1-kHz Sampling Rate)
Passband
0.03 dB
−6 dB
0.4535 f
s
Hz
Hz
dB
dB
Stopband
0.5 fs
−50
Passband ripple
Stopband attenuation
f > 0.5465 f
s
3−11
TI [ TEXAS INSTRUMENTS ]
