ADAU1381BCPZ Analog Devices Inc, ADAU1381BCPZ Datasheet - Page 18
ADAU1381BCPZ
Manufacturer Part Number
ADAU1381BCPZ
Description
IC AUDIO CODEC STEREO LN 32LFCSP
Manufacturer
Analog Devices Inc
Type
Stereo Audior
Datasheet
1.ADAU1381BCBZ-RL.pdf
(84 pages)
Specifications of ADAU1381BCPZ
Data Interface
Serial, SPI™
Resolution (bits)
24 b
Number Of Adcs / Dacs
2 / 2
Sigma Delta
No
S/n Ratio, Adcs / Dacs (db) Typ
97 / 100
Dynamic Range, Adcs / Dacs (db) Typ
96.5 / 100
Voltage - Supply, Analog
1.8 V ~ 3.65 V
Voltage - Supply, Digital
1.63 V ~ 3.65 V
Operating Temperature
-25°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-VFQFN, CSP Exposed Pad
Audio Codec Type
Stereo
No. Of Adcs
2
No. Of Dacs
2
No. Of Input Channels
3
No. Of Output Channels
3
Adc / Dac Resolution
24bit
Adcs / Dacs Signal To Noise Ratio
100dB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
ADAU1381
Figure 16. DAC Interpolation Filter Pass-Band Ripple, 64× Oversampling,
–0.05
–0.10
–0.15
–0.20
–100
–100
0.20
0.15
0.10
0.05
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
0
Figure 17. DAC Interpolation Filter, 128× Oversampling,
0
0
0
Figure 15. DAC Interpolation Filter, 64× Oversampling,
0.1
0.1
0.05
0.2
0.2
0.10
FREQUENCY (NORMALIZED TO
FREQUENCY (NORMALIZED TO
FREQUENCY (NORMALIZED TO
0.3
0.3
Normalized to f
Normalized to f
Normalized to f
0.15
0.4
0.4
0.20
0.5
0.5
0.6
0.6
0.25
S
S
S
0.7
0.7
0.30
f
f
f
S
S
S
)
)
)
0.8
0.8
0.35
0.9
0.9
0.40
1.0
1.0
Rev. B | Page 18 of 84
Figure 18. DAC Interpolation Filter Pass-Band Ripple, 128× Oversampling,
Figure 20. DAC Interpolation Filter Pass-Band Ripple, Double-Rate Mode,
–0.01
–0.02
–0.03
–0.04
–0.05
–0.05
–0.10
–0.15
–0.20
–100
0.05
0.04
0.03
0.02
0.01
0.20
0.15
0.10
0.05
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
0
0
0
0
Figure 19. DAC Interpolation Filter, Double-Rate Mode,
0.05
0.1
0.05
0.10
0.2
0.10
FREQUENCY (NORMALIZED TO
FREQUENCY (NORMALIZED TO
FREQUENCY (NORMALIZED TO
0.15
0.3
Normalized to f
Normalized to f
Normalized to f
0.15
0.20
0.4
0.25
0.20
0.5
0.30
0.6
0.25
S
S
S
0.35
0.7
0.30
f
f
f
S
S
S
0.40
)
)
)
0.8
0.35
0.45
0.9
0.50
0.40
1.0