ADSP-BF525C_15 Datasheet, PDF (30/36 Pages) Analog Devices – Blackfin Embedded Processor with Codec

ADSP-BF522C/ADSP-BF523C/ADSP-BF524C/ADSP-BF525C/ADSP-BF526C/ADSP-BF527C
Digital Filter Characteristics
Table 22. Digital Filter Characteristics
Parameter
Conditions
ADC FILTER
Pass Band
±0.04 dB
–6 dB
Pass Band Ripple
Stop Band
Stop Band Attenuation
f > 0.567 × f_S
High-Pass Filter Corner Frequency –3 dB
–0.5 dB
–0.1 dB
DAC FILTER
Pass Band
±0.04 dB
–6 dB
Pass Band Ripple
Stop Band
Stop Band Attenuation
Codec Clock Tolerance
f > 0.565 × f_S
Frequency Range
Jitter Tolerance
CONVERTER FILTER RESPONSE
Min
Typical Max
Unit
0
0.445 × f_S Hz
0.5 × f_S
Hz
±0.04 dB
0.555 × f_S
Hz
–61
dB
3.7
Hz
10.4
Hz
21.6
Hz
0
0.445 × f_S Hz
0.5 × f_S
Hz
±0.04 dB
0.555 × f_S
Hz
–61
dB
8.0
13.8
MHz
50
pS
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
FREQUENCY (f_S)
Figure 23. ADC Digital Filter Frequency Response, Sampling Rate = 48 kHz
0.05
0.04
0.03
0.02
0.01
0
−0.01
−0.02
−0.03
−0.04
−0.05
0
0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
FREQUENCY (f_S)
Figure 24. ADC Digital Filter Ripple, Sampling Rate = 48 kHz
Rev. A | Page 30 of 36 | March 2010