Audio Amplifiers

Class D


All ICs are RoHS compliant.

* Status: P - mass production, S - samples, UD - under development, N - not recommended for new design.

Chip Description Supply
  voltage  
[V]		 Output
power		   SNR   Operating
temperature
[°C]		    Package    Status *
NAU82011VG
 (696 kB) 		Mono Class-D audio amplifier
  • variable voltage gain ≤ 26 dB with using external input resistors
  • signal inputs in single-ended or differential mode
  • Chip Enable input
  • current and thermal protection
  • pop/click suppression
  • stand-by current <1 µA
 2.5 – 5.5 3.1 W / 4 Ω
at 5 V and THD+N <10%		 103 dB -40 – +85 WLCSP-9 P
NAU82011WG
 (555 kB) 		Mono Class-D audio amplifier
  • variable voltage gain ≤ 26 dB with using external input resistors
  • signal inputs in single-ended or differential mode
  • Chip Enable input
  • current and thermal protection
  • pop/click suppression
  • stand-by current <1 µA
 2.5 – 5.5 2.9 W / 4 Ω
at 5 V and THD+N <10%		 103 dB -40 – +85 MSOP-8 P
NAU82028VG
 (1054 kB) 		Mono filter-free Class-D audio amplifier
  • variable voltage gain in the range from +12 dB to -20.5 dB using 2-wire interface
  • signal inputs in single-ended or differential mode
  • Chip Enable input
  • current and thermal protection
  • pop/click suppression
  • stand-by current <1 µA
 2.5 – 5.5 3.1 W / 4 Ω
at 5 V and THD+N <10%		 101 dB -40 – +85 WLCSP-9 P
NAU82039VG
 (783 kB) 		Mono Class-D audio amplifier
  • fixed voltage gain 12 dB
  • signal inputs in single-ended or differential mode
  • Chip Enable input
  • current and thermal protection
  • pop/click suppression
  • stand-by current <1 µA
 2.5 – 5.5 3.2 W / 4 Ω
at 5 V and THD+N <10%		 103 dB -40 – +85 WLCSP-9 P
NAU8214
 (1327 kB) 		Stereo filter-free Class-D audio amplifier
  • 5 selectable voltage gain settings (0 / 6 / 12 / 18 / 24 dB)
  • signal inputs in single-ended or differential mode
  • Chip Enable input
  • current and thermal protection
  • pop/click suppression
  • max power limiting function (speaker protection) set by using external resistor
  • stand-by current <1 µA
 2.5 – 5.5 2.9 W / 4 Ω
at 5 V and THD+N <10%		 103 dB -40 – +85 QFN-20
SOP-8		 P
NAU8223
 (1007 kB) 		Stereo filter-free Class-D audio amplifier
  • 5 selectable voltage gain settings (0 / 6 / 12 / 18 / 24 dB)
  • signal inputs in single-ended or differential mode
  • Chip Enable input
  • current and thermal protection
  • pop/click suppression
  • stand-by current <1 µA
 2.5 – 5.5 3.1 W / 4 Ω
at 5 V and THD+N <10%		 103 dB -40 – +85 QFN-20 P
NAU8224
 (753 kB) 		Stereo filter-free Class-D audio amplifier
  • variable voltage gain in the range from +24 dB to -62 dB using 2-wire interface
  • signal inputs in single-ended or differential mode
  • Chip Enable input
  • current and thermal protection
  • pop/click suppression
  • stand-by current <1 µA
 2.5 – 5.5 3.1 W / 4 Ω
at 5 V and THD+N <10%		 101 dB -40 – +85 QFN-20 P
NAU83P20
 (1226 kB) 		Stereo high power high efficiency Class-D audio amplifier
  • signal inputs in single-ended or differential mode
  • multiple output configurations
    • 2-channel BTL outputs (2 x 20 W)
    • 4-channel single ended outputs (4 x 10 W)
    • 2-channel single ended + 1-channel BTL outputs (2 x 10 W + 20 W)
  • Chip Enable input
  • current and thermal protection
  • pop/click suppression
  • stand-by current <1 µA
 8 – 24 2 x 20 W / 8 Ω
at THD+N <10%		 105 dB 0 – +70 QFN-48 P