Specifications

ADAU1592
Rev. A | Page 3 of 24
SPECIFICATIONS
AVDD = 3.3 V, DVDD = 3.3 V, PVDD = 15 V, ambient temperature = 25°C, load impedance = 6 , clock frequency = 24.576 MHz,
measurement bandwidth = 20 Hz to 20 kHz, unless otherwise specified.
AUDIO PERFORMANCE
Table 1.
Parameter Min Typ Max Unit Test Conditions/Comments
OUTPUT POWER
1
1 kHz
12 W 1% THD + N, 8 Ω
15 W 10% THD + N, 8 Ω
14.5 W 1% THD + N, 6 Ω
18 W 10% THD + N, 6 Ω
19.5 W 1% THD + N, 4 Ω
24 W 10% THD + N, 4 Ω
EFFICIENCY 87 % @ 18 W, 6 Ω
R
DS-ON
@ T
CASE
= 25°C
Per High-Side Transistor 0.28 Ω @ 100 mA
Per Low-Side Transistor 0.25 Ω @ 100 mA
THERMAL CHARACTERISTICS
Thermal Warning Active
2
135 °C Die temperature
Thermal Shutdown Active 150 °C Die temperature
OVERCURRENT SHUTDOWN ACTIVE 5 6 A Peak current
PVDD UNDERVOLTAGE SHUTDOWN 5.1 V
INPUT LEVEL FOR FULL-SCALE OUTPUT Full-scale output @ 1% THD + N
1.0 V
rms
PGA gain = 0 dB
0.5 V
rms
PGA gain = 6 dB
0.25 V
rms
PGA gain = 12 dB
0.125 V
rms
PGA gain = 18 dB
TOTAL HARMONIC DISTORTION + NOISE (THD + N) 0.005 % 1 kHz, P
OUT
= 1 W, PGA gain = 0 dB
SIGNAL-TO-NOISE RATIO (SNR) 99 101 dB A-weighted, referred to 1% THD + N output
DYNAMIC RANGE (DNR) 99 101 dB A-weighted, measured with −60 dBFS input
CROSSTALK (LEFT TO RIGHT OR RIGHT TO LEFT) −90 dB @ full-scale output voltage, 1% THD + N, 1 kHz
AMPLIFIER GAIN PVDD = 15 V, 6 Ω
PGA = 0 dB 19 dB
PGA = 6 dB 25 dB
PGA = 12 dB 31 dB
PGA = 18 dB 37 dB
OUTPUT NOISE VOLTAGE PVDD = 15 V, 6 Ω
PGA = 0 dB 78 μV
PGA = 6 dB 100 μV
PGA = 12 dB 158 μV
PGA = 18 dB 280 μV
POWER SUPPLY REJECTION RATIO (PSRR) 65 dB
20 Hz to 20 kHz, 1.5 V p-p ripple, inputs
ac-coupled to AGND
1
Output powers above 12 W at 4 Ω and above 18 W at 6 Ω are not continuous and are thermally limited by the package dissipation.
2
Thermal warning flag is for indication of device T
J
reaching close to shutdown temperature.