ADAU1361BCPZ-R7 datasheet(6/80 Pages) AD

6 / 80 page

ADAU1361

Data Sheet

Rev. D | Page 6 of 80

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

Interchannel Isolation

Common-Mode Rejection Ratio

100 mV rms, 1 kHz

100 mV rms, 20 kHz

MICROPHONE BIAS

MBIEN = 1

Bias Voltage

0.65 × AVDD

AVDD = 1.8 V, MBI = 1

1.17

AVDD = 3.3 V, MBI = 1

2.145

0.90 × AVDD

AVDD = 1.8 V, MBI = 0

1.62

AVDD = 3.3 V, MBI = 0

2.97

Bias Current Source

AVDD = 3.3 V, MBI = 0, MPERF = 1

Noise in the Signal Bandwidth

AVDD = 3.3 V, 1 kHz to 20 kHz

MBI = 0, MPERF = 0

nV/√Hz

MBI = 0, MPERF = 1

nV/√Hz

MBI = 1, MPERF = 0

nV/√Hz

MBI = 1, MPERF = 1

nV/√Hz

DIGITAL-TO-ANALOG CONVERTERS

DAC performance excludes mixers and

headphone amplifier

DAC Resolution

All DACs

Bits

Digital Attenuation Step

0.375

Digital Attenuation Range

DAC TO LINE OUTPUT

Full-Scale Output Voltage (0 dB)

Scales linearly with AVDD

AVDD/3.3

V rms

AVDD = 1.8 V

0.50 (1.41)

V rms (V p-p)

AVDD = 3.3 V

0.92 (2.60)

V rms (V p-p)

Analog Volume Control Step

Line output volume control

0.75

Analog Volume Control Range

Line output volume control

−57

Mute Attenuation

−87

Dynamic Range

20 Hz to 20 kHz, −60 dB input, line

output mode

With A-Weighted Filter (RMS)

AVDD = 1.8 V

AVDD = 3.3 V

101

No Filter (RMS)

AVDD = 1.8 V

93.5

AVDD = 3.3 V

Total Harmonic Distortion + Noise

−1 dBFS, line output mode

AVDD = 1.8 V

−90

AVDD = 3.3 V

−92

Signal-to-Noise Ratio

Line output mode

With A-Weighted Filter (RMS)

AVDD = 1.8 V

AVDD = 3.3 V

101

No Filter (RMS)

AVDD = 1.8 V

93.5

AVDD = 3.3 V

Power Supply Rejection Ratio

CM capacitor = 20 μF

100 mV p-p @ 217 Hz

100 mV p-p @ 1 kHz

Gain Error

Interchannel Gain Mismatch

0.005

Offset Error

Interchannel Isolation

1 kHz, 0 dBFS input signal

100

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