Data Sheet ADAU1328
Rev. B | Page 3 of 32
SPECIFICATIONS
TEST CONDITIONS
Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase deviation specifications.
Supply Voltages (AVDD, DVDD) 3.3 V
Temperature Range
1
As specified in Table 1
Master Clock 12.288 MHz (48 kHz f
S
, 256 × f
S
mode)
Input Sample Rate 48 kHz
Measurement Bandwidth 20 Hz to 20 kHz
Word Width 24 bits
Load Capacitance (Digital Output) 20 pF
Load Current (Digital Output) ±1 mA or 1.5 kΩ to ½ DVDD supply
Input Voltage HI 2.0 V
Input Voltage LO 0.8 V
1
Functionally guaranteed at −40°C to +85°C case temperature.
ANALOG PERFORMANCE SPECIFICATIONS
Specifications guaranteed at 25°C (ambient).
Table 1.
Parameter Conditions Min Typ Max Unit
ANALOG-TO-DIGITAL CONVERTERS
ADC Resolution All ADCs 24 Bits
Dynamic Range 20 Hz to 20 kHz, −60 dB input
No Filter (RMS) 98 102 dB
With A-Weighted Filter (RMS) 100 105 dB
Total Harmonic Distortion + Noise
Gain Error −10 +10 %
Interchannel Gain Mismatch −0.25 +0.25 dB
Offset Error −10 0 +10 mV
Gain Drift 100 ppm/°C
CMRR 100 mV rms, 1 kHz 55 dB
100 mV rms, 20 kHz 55 dB
Input Resistance 14 kΩ
Input Capacitance 10 pF
Input Common-Mode Bias Voltage 1.5 V
DIGITAL-TO-ANALOG CONVERTERS
Dynamic Range 20 Hz to 20 kHz, −60 dB input
No Filter (RMS) 98 104 dB
With A-Weighted Filter (RMS)
With A-Weighted Filter (Avg) 108 dB
Total Harmonic Distortion + Noise 0 dBFS
Single-Ended Version Two channels running −92 dB
Eight channels running −86 −75 dB
Full-Scale Output Voltage
Gain Error −10 +10 %
Interchannel Gain Mismatch −0.2 +0.2 dB
Offset Error −16 −4 16 mV
Gain Drift −30 30 ppm/°C
Interchannel Isolation 100 dB
