Drive.A.2
Dual-channel audio output driver for the Drive.A.2 tile (DAC63202W smart DAC + 2x TPA2028D1 Class-D amplifiers). Supports I2C and SPI bus access via tiles_pal_t.
(DAC63202W smart DAC + 2x TPA2028D1 Class-D amplifiers). Supports I2C and SPI bus access via tiles_pal_t. @version 2.0.0
The Drive.A.2 tile provides two independent audio output channels, each consisting of a 12-bit DAC channel feeding a 3W Class-D amplifier.
DAC features (DAC63202W): - 12-bit resolution, dual channel - Voltage output with configurable gain (1x, 1.5x, 2x, 3x, 4x) - Internal 1.21V reference or VDD/external reference - Built-in waveform generation: sine, triangle, sawtooth - I2C (up to 1 MHz) or SPI (up to 50 MHz), auto-detected at boot
Amplifier features (TPA2028D1, x2): - 3W into 4 ohm, 880 mW into 8 ohm per channel - I2C-programmable gain: -28 dB to +30 dB in 1 dB steps - AGC with configurable compression, attack/release/hold times - Both amplifiers share I2C address 0x58 — writes affect both