Datasheet

3–2
3.3.2 ADC Digital Filter, T
A
= 25°C, AV
DD
= DV
DD
= 3.3 V ± 10%, f
s
= 44.1 kHz
(see Notes 3 and 4)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
ADC Decimation Filter (LPF)
Pass band 20 kHz
Pass band ripple ±0.01 dB
Stop band 24.1 kHz
Stop band attenuation 80 dB
Group delay 720 µs
ADC High-Pass Filter (HPF)
Pass band (–3 dB) 0.87 Hz
Deviation from linear phase 20 Hz to 20 kHz 1.23 degree
NOTES: 3. All the terms characterized by frequency, scale with the chosen sampling frequency, f
s
.
4. See Figure 4–6 through Figure 4–9 for performance curves on the ADC digital filter.
3.3.3 Analog-to-Digital Converter, T
A
= 25°C, AV
DD
= DV
DD
= 3.3 V, f
s
= 44.1 kHz
(see Note 3)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
SNR Signal-to-noise ratio (EIAJ) A-weighted 100 dB
Dynamic range A-weighted, –60 dB, 1 kHz 100 dB
Signal-to-noise + distortion ratio 20 Hz to 20 kHz 86 dB
Power supply rejection ratio 1 kHz, See Note 5 50 dB
Idle channel tone rejection 120 dB
Intermodulation distortion –80 dB
ADC crosstalk 100 dB
Overall ADC frequency response 20 Hz to 20 kHz –0.1 0.1 dB
Gain error 5%
Gain matching ±0.02 dB
Full-scale differential input voltage 3.6 V
pp
CMRR Common mode rejection ratio 100 dB
NOTES: 3. All the terms characterized by frequency, scale with the chosen sampling frequency, f
s
.
5. Measured with a 50 mV peak sine wave.
3.3.4 DAC Interpolation Filter, T
A
= 25°C, AV
DD
= DV
DD
= 3.3 V + 10%, f
s
= 44.1 kHz
(see Notes 3 and 6)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Pass band 0 20 kHz
Pass band ripple ±0.005 dB
Stop band 24.1 kHz
Stop band attenuation 28.8 kHz to 3 MHz 75 dB
Group delay 700 µs
NOTES: 3. All the terms characterized by frequency, scale with the chosen sampling frequency, f
s
.
6. See Figure 4–4 and Figure 4–5 for performance curves of the DAC digital filter.