STA559BW is a 5-volt, 2-amp, 2.1-channel high-efficiency digital audio system. It features a wide range of supply voltage, multiple power output configurations, FFX with high SNR and dynamic range, selectable input sample rates, I2C control, and more.
The STA559BW is a high-efficiency digital audio system designed for 5V applications, offering three power output configurations including 2.1-channel binary PWM. It features a wide supply voltage range of 4.5V to 16V and supports selectable input sample rates from 32kHz to 192kHz.
The device includes advanced audio processing capabilities such as digital gain/attenuation, individual channel and master volume control, and two independent limiters/compressors. It supports various audio presets, including crossover filters and anti-clipping modes, and is available in a PowerSSO-36 EPD package.
| Supply voltage | 4.5 V to 16 V |
|---|---|
| Power output configuration 1 | 2 channels of ternary PWM (2 x 3 W into 4 Ω at 5 V) + PWM output |
| Power output configuration 2 | 2 channels of ternary PWM (2 x 3 W into 4 Ω at 5 V) + ternary stereo line-out |
| Power output configuration 3 | 2.1 channels of binary PWM (left, right, LFE) |
| Input sample rates | 32 to 192 kHz |
| Digital gain/attenuation range | +48 dB to -80 dB |
| Signal-to-noise ratio | 100 dB |
The device offers three configurations: 2 channels of ternary PWM plus PWM output, 2 channels of ternary PWM plus stereo line-out, or 2.1 channels of binary PWM.
The device supports a wide-range supply voltage from 4.5 V to 16 V.
Yes, it provides digital gain/attenuation ranging from +48 dB to -80 dB with 0.5-dB/step resolution.