adau1381 Analog Devices, Inc., adau1381 Datasheet - Page 5

• Manufacturer Part Number: adau1381
• Description: Low-noise Stereo Codec With Enhanced Recording And Playback Processing
• Manufacturer: Analog Devices, Inc.

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)
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
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
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
Test Conditions/Comments
−60 dB input
−3 dBFS
AVDD = 3.3 V, 100 mV rms, 1 kHz
Rev. A| 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