Datasheet

ADAU1966 Data Sheet
Rev. D | Page 4 of 52
SPECIFICATIONS
Performance of all channels is identical, exclusive of the interchannel gain mismatch and interchannel phase deviation specifications.
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 high = 2.0 V, input voltage low = 0.8 V, analog audio output resistive load = 3100 Ω per pin, unless otherwise noted.
ANALOG PERFORMANCE SPECIFICATIONS
Specifications guaranteed at AVDDx = 5 V and an ambient temperature of 25°C. Supply voltages = AVDDx = 5 V, DVDD = 2.5 V,
ambient temperature
1
(T
A
) = 25°C, unless otherwise noted.
Table 1.
Parameter Test Conditions/Comments Min Typ Max Unit
DIGITAL-TO-ANALOG CONVERTERS
Dynamic Range 20 Hz to 20 kHz, −60 dB input
No Filter (RMS) 105 115.5 dB
With A-Weighted Filter (RMS) 108 118 dB
Total Harmonic Distortion + Noise 0 dBFS −90 dB
Two channels running, −1 dBFS −98 dB
16 channels running, −1 dBFS −98 −85 dB
Full-Scale Differential Output Voltage 3.00 (±8.49) V rms (V p-p)
Gain Error −10 +10 %
Offset Error −25 −6 +25 mV
Gain Drift
−30
+30
ppm/°C
Interchannel Isolation 100 dB
Interchannel Phase Deviation 0 Degrees
Volume Control Step 0.375 dB
Volume Control Range 95.25 dB
De-emphasis Gain Error ±0.6 dB
Output Resistance at Each Pin
33
Ω
REFERENCE VOLTAGES
Temperature Sensor Reference Voltage TS_REF pin 1.50 V
Common-Mode Reference Output CM pin 2.14 2.25 2.29 V
External Reference Voltage Source CM pin 2.25 V
TEMPERATURE SENSOR
Temperature Accuracy −3 +3 °C
Temperature Readout Range −60 +140 °C
Temperature Readout Step Size 1 °C
Temperature Sample Rate 0.25 6 Hz
REGULATOR
Input Supply Voltage VSUPPLY pin 3.0 5 5.5 V
Regulated Output Voltage VSENSE pin 2.26 2.50 2.59 V
1
Functionally guaranteed at −40°C to +125°C case temperature.