RT9121
RT9121 is 30W Stereo channel audio power amplifier manufactured by Richiek.
Description
The RT9121 is a high efficiency, I2S-input, stereo channel audio power amplifier delivering 2x30W into 8 BTL speaker loads. It can deliver over 94% power efficiency and eliminate the need for heat-sink.
Built-in protection circuits can provide over-temperature, overcurrent, overvoltage, DC and undervoltage protections and report error status. The RT9121 is an I2S device receiving all clocks from external sources. It can support both master and slave mode with wide input sampling rate from 8k Hz to 192k Hz. A fully programmable data path routes these channels to the internal speaker drivers.
The RT9121 features three band DRC and flexible multi-band biquads for anti-clipping, power limiting, and speaker equalization.
Ordering Information
Package Type QV: VQFN-48L 6x6 (V-Type)
Lead Plating System G: Green (Halogen Free and Pb Free)
Note:
Richtek products are:
- Ro HS pliant and patible with the current requirements of IPC/JEDEC J-STD-020.
- Suitable for use in Sn Pb or Pb-free soldering processes.
Features
- Flexible Power Supply Range
- PVDD from 4.5V to 26.4V
- DVDD and I/O, 1.8V or 3.3V
- Support Wide Range Audio Format
- Bit Resolution Up to 32 Bits
- Support TDM Up to 32 Bit
- Sampling Frequency from 8k Hz to 192k Hz
- Excellent Audio Performance
- 2x30W at into 8 BTL at 24V
- SNR 110d B
- Efficiency 94%
- Built-in Programmable DSP Function
- 40 Programmable Biquads for Speaker Equalization
- Programmable Coefficients for DRC Filters and Supporting Multi-pression Ratios
- Programmable 256-taps FIR
- Excellent Self-Protection
- UVLO, OVP, OCP, thermal foldback, OTP and DCP
- Built-In DC Blocking Filters
- Filter-Less Application
- Hifi-3 DSP Process, 160k B SRAM
- Adjustable PWM frequency up to 1.5MHz
- VQFN-48L Thermally-Enhanced Package
- Ro HS pliant and Halogen Free
Applications
- LCD-TV
- Monitors
- Home Audio
- Amusement...
