IC-Hersteller Richtek

IC-Hersteller (96)

Richtek RT9120 | Demoboard EVB_RT9120SGQV

Class-D Digital Audio Amplifier

Details

TopologieClass D Audio Amplifier
Eingangsspannung4.5-26.4 V
Schaltfrequenz8-192 kHz
IC-Revision00

Beschreibung

The RT9120S is a high efficiency, I2S-input, stereo channel audio power amplifier delivering maximum 2x30W into 8Ω BTL speaker loads. It can deliver over 94% power efficiency at 2x10W and eliminate the need for heatsink. The built-in anti-pop functions can reduce the speaker’s pop noise under all kind of scenarios. Built-in protection circuits can provide over-temperature, over-current, over voltage, under-voltage protections and report error status. The RT9120S is a 3-wired device receiving all clocks from external sources with standard I2S, Left-justified, Rightjustified or TDM formats. It can support wide input sampling rate from 8kHz to 192kHz.

Eigenschaften

  • Wide Input Supply Range: 4.5V to 26.4V
  • Support 1.8V, 3.3V I/O
  • I2S, LJ, RJ, Digital Audio Interface- 2x20W at into 8 BTL at 20V
  • 2x9W at into 8 BTL at 12V
  • SNR Up to 106dB
  • THD + N is 0.03% at 1W
  • 60V Noise Floor
  • Efficiency Up to 92% at 2x10W for 8
  • Sampling Frequency from 8kHz to 192kHz
  • Built-In Anti-Pop Function for BTL BD Modulations
  • Flexible Input Mixer
  • Programmable Coefficients for DRC Filters and Supporting Multi-Compression Ratios
  • Built-In DC Blocking Filters
  • Built-in Thermal Fold Back Control
  • Protection Features: UVLO, OVP, OCP, OTP and DCP
  • Filter-Less Application
  • VQFN-32L Thermally-Enhanced Package
  • RoHS Compliant and Halogen Free

Typische Anwendungen

  • Consumer Electronics
  • Communication & Enterprise
  • Automotive & e-Mobility
  • Industrial

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
MaterialLR
(µH)
Muster
7443321000SPEC
8 Dateien WE-HCC SMT-Hochstrominduktivität 10 9.6 9.1 11.3 16.7 Ferrite 7.5
Artikel Nr. Daten­blatt Simu­lation
7443321000SPEC
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads ProduktserieL
(µH)
IRP,40K
(A)
ISAT1
(A)
ISAT,30%
(A)
RDC max.
(mΩ)
MaterialLR
(µH)
Muster