ST TDA7803A-ZST

The TDA7803A is a single chip quad bridge amplifier in advance I²S CD technology integrating: a full D/A converter, direct connection to I²S (or TDM) and p MOSFET output stages. The integrated D/A converter allows the performance to reach an outstanding 115 dB S/N ratio with more than 110 dB of dynamic range. Moreover the TDA7803A integrates an innovative high efficiency concept, optimized also for uncorrelated music signals, designed to be compatible to battery modulation for class - G systems. Thanks to this concept, the dissipated “output power” under average listening conditions is reduced up to 50% when compared to the conventional class AB solutions. The TDA7803A integrates also a programmable PLL that is able to lock at the input frequencies of 64*Fs for all the input configurations. The device is equipped with a full I²C diagnostics array that communicates the status of each speaker through the I²C bus. The same I²C bus allows to control several configurations of the device. The TDA7803A is able to play music down to 6 V supply voltage - so it is compatible with the so - called 'start stop' battery profile recently adopted by several car manufacturers.

• AEC - Q100 qualified
• 24 - bit digital processing, 115 dB dynamic range (A - weighted)
• SB - I (SB - improved) high efficiency
• Highest non - class D efficiency
• 4×27W output power @ 4 Ω, THD = 10%; 4×47W output power @ 2 Ω, THD = 10%
• 4×27W 4 Ω @ 14.4V, 4×22W 2 Ω @ 14.4V, THD = 1%
• Flexible mode control
• Full I²C bus driver, 4 addresses selectable (only for PowerSO - 36 package option)
• Independent from I²S
• Selectable digital gains for very - low noise
• Line - out function
• Digital diagnostic with DC and AC load detections
• 48 kHz, 44.1 kHz, 96 kHz, 192 kHz sampling rates
• Start - stop compatibility (1.8V/3.3V)
• Flexible (8 + 8ch)
• I²S standard
• Programmable via CMOS compatible enable pin
• Pop free in mute