Texas Instruments (TI) today announced three analog-input Class-D stereo amplifiers to meet the needs of sound bars, automotive solutions, portable docks, and LCD TVs. The TPA3116D2, TPA3118D2, and TPA3130D2 feature the industry's highest programmable switching rate and the widest power supply for high quality, high efficiency audio output. These devices are pin-to-pin and software compatible and support single-layer printed circuit boards (PCBs), helping designers reuse uniform layouts across multiple designs for cost savings.
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Key features and benefits of TPA3116D2, TPA3118D2 and TPA3130D2:
• 4.5 V to 26 V The industry's widest supply voltage allows line power and battery power to work simultaneously on the same board, extending the battery life of the bar and portable speakers;
• Efficient heat dissipation FET supports 30 W x 2 operation (no heat sink required) or heat sink 50 W x 2 operation (TPA3116D2 only);
• 400 KHz to 1.2 MHz The industry's highest programmable switching rate supports filterless inductor operation and interference cancellation for clear, distortion-free audio;
• Closed loop design provides excellent power supply rejection ratio (PSRR) and slower waveform switch edge rates for improved EMI immunity;
• The industry's best RDS(on) at 120 W x 2 is 20% lower than the leading competing products, improving efficiency by reducing operating impedance.
Tools and Support The evaluation boards and SPICE models for the TPA3116D2, TPA3118D2, and TPA3130D2 help designers easily evaluate system-level performance and quickly integrate these amplifiers into their product designs.
Availability The TPA3116D2, TPA3118D2 and TPA3130D2 are available now in a 10 mm x 6 mm 32-pin HTSSOP package.
Complete signal chain designers of high-quality audio processing can process digital input audio using the TI PCM510x Series audio codec and then provide it to the TPA3116D2, TPA3118D2, and TPA3130D2. The PCM510x family features ultra-low out-of-band noise and high jitter rejection, as well as a zero-infrared transient noise architecture that supports soft and analog mute.
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