Product Overview
The TAS5760M is a 55 W stereo closed-loop digital-input Class-D audio amplifier from Texas Instruments, designed for cost-effective high-performance audio applications. Operating from a single 4.5 V to 26.4 V power supply, it delivers 0.03% THD+N at 1 kHz and 105 dB SNR with its closed-loop architecture providing improved PSRR and higher damping factor. The device supports stereo bridge-tied load (BTL) or mono parallel bridge-tied load (PBTL) configurations and accepts I2S, left-justified, and right-justified serial audio inputs at sample rates of 32, 44.1, 48, 88.2, and 96 kHz. Both hardware pin control and software I2C control modes are available, with integrated digital clipper, selectable gain options, and adjustable switching frequency (384 kHz or 768 kHz). Offered in a thermally enhanced 48-pin HTSSOP package, the TAS5760M is pin-to-pin compatible with the TAS5760xx family, enabling easy design scalability.
Key Specifications
| Audio Input | Digital (I2S / LJ / RJ) |
| Architecture | Class-D (Closed-loop) |
| Output Power (Stereo BTL) | Up to 55 W / channel (10% THD+N) |
| Output Power (Mono PBTL) | Up to 114 W (10% THD+N) |
| THD+N @ 1 kHz | 0.03% (at 1 W, 8Ω) |
| SNR (A-weighted) | 105 dB |
| Idle Channel Noise | 100 µVrms (A-weighted) |
| Power Supply (PVDD) | 4.5 V to 26.4 V |
| Sample Rate Range | 32 kHz to 96 kHz |
| Switching Frequency | 384 kHz / 768 kHz (selectable) |
| Load Impedance | 2Ω to 8Ω |
| MOSFET Rds(on) | 120 mΩ |
| Control Interface | Hardware pins + I2C software |
| Operating Temperature | -25°C to +85°C |
| Package | HTSSOP-48 (12.5 x 8.1 mm) |
Features
- 55 W stereo / 114 W mono PBTL Class-D amplifier
- Closed-loop architecture for improved PSRR and damping factor
- 0.03% THD+N, 105 dB SNR, 100 µVrms idle noise
- Single I2S stereo input (32-96 kHz sample rates)
- Hardware pin control + I2C software control modes
- Integrated digital output clipper
- Programmable I2C address (2 options)
- Adjustable switching frequency: 384 kHz / 768 kHz
- Selectable speaker gain options
- 120 mΩ output MOSFET on-resistance
- Comprehensive protection: clock error, DC, short-circuit, over-temperature, programmable over-current
- Pin-compatible TAS5760xx family
- Thermally enhanced HTSSOP-48 package
- RoHS compliant, lead-free
Applications
- Flat-panel LCD/LED TVs and display monitors
- Soundbars and audio docking stations
- PC speakers and desktop audio
- Bluetooth and wireless speakers
- General-purpose audio amplification
- Home theater systems
- Gaming consoles and accessories
- Multimedia projectors