ADAU1381BCPZ Analog Devices Inc, ADAU1381BCPZ Datasheet - Page 5
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
Parameter
DIFFERENTIAL MICROPHONE INPUT TO
BEEP TO LINE OUTPUT PATH
Left/Right Microphone PGA Gain
Left/Right Microphone PGA Mute
Interchannel Gain Mismatch
Offset Error
Gain Error
Interchannel Isolation
Power Supply Rejection Ratio
ADC PATH
Full-Scale Input Voltage (0 dB)
Dynamic Range
Total Harmonic Distortion + Noise
Signal-to-Noise Ratio
Left/Right Microphone PGA Mute
Interchannel Gain Mismatch
Offset Error
Gain Error
Interchannel Isolation
Common-Mode Rejection Ratio
Full-Scale Input Voltage (0 dB)
Total Harmonic Distortion + Noise
Signal-to-Noise Ratio
Range
Attenuation
Attenuation
With A-Weighted Filter (RMS)
No Filter (RMS)
With A-Weighted Filter (RMS)
No Filter (RMS)
With A-Weighted Filter (RMS)
No Filter (RMS)
Test Conditions/Comments
AVDD = 3.3 V
AVDD = 3.3 V; mute set by Register
0x400E, Bit 1, and Register 0x400F, Bit 1
AVDD = 3.3 V
AVDD = 3.3 V
CM capacitor = 10 μF
AVDD = 3.3 V, 100 mV p-p at 217 Hz
AVDD = 3.3 V, 100 mV p-p at 1 kHz
Scales linearly with AVDD
AVDD = 1.8 V
AVDD = 3.3 V
AVDD = 1.8 V
AVDD = 3.3 V
AVDD = 1.8 V
AVDD = 3.3 V
AVDD = 1.8 V
AVDD = 3.3 V
AVDD = 1.8 V
AVDD = 3.3 V
AVDD = 1.8 V
AVDD = 3.3 V
AVDD = 3.3 V; mute set by Register
0x400E, Bit 1, and Register 0x400F, Bit 1
AVDD = 3.3 V
AVDD = 3.3 V
AVDD = 3.3 V, 100 mV rms, 20 kHz
Scales linearly with AVDD
AVDD = 1.8 V
AVDD = 3.3 V
−3 dBFS input, measured at AOUTL pin,
beep gain set to 0 dB
AVDD = 1.8 V
AVDD = 3.3 V
AVDD = 1.8 V
AVDD = 3.3 V
AVDD = 1.8 V
AVDD = 3.3 V
AVDD = 3.3 V
AVDD = 3.3 V
−60 dB input
−3 dBFS
AVDD = 3.3 V
AVDD = 3.3 V
AVDD = 3.3 V, 100 mV rms, 1 kHz
Rev. B | Page 5 of 84
Min
0
94
92
Typ
−98
50
0.25
−1
−98
−55
−55
AVDD/3.3
0.55 (1.56)
1.0 (2.83)
96
99.2
92
96.5
−84
−85
96
100
92
97
−98
50
0.25
−1
−85
−60
−45
AVDD/3.3
0.55 (1.56)
1.0 (2.83)
−88
−88
99
105
96
102
Max
32
ADAU1381
Unit
dB
dB
mdB
mV
%
dB
dB
dB
V rms
V rms (V p-p)
V rms (V p-p)
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
mdB
mV
%
dB
dB
dB
V rms
V rms (V p-p)
V rms (V p-p)
dB
dB
dB
dB
dB
dB