Richtek RT9120 | Demoboard EVB_RT9120SGQV

Description

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.

Features

• 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

Typical applications

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

More information

• IC product information