Overview
The TAS5805M, produced by Texas Instruments, is a high-efficiency, stereo, closed-loop Class-D amplifier designed to offer a cost-effective digital-input solution with low power dissipation and enhanced audio performance. This device integrates an advanced audio processor and supports a 96 kHz architecture, enabling advanced audio process flows such as sample rate conversion (SRC), volume control, audio mixing, and multi-band dynamic range compression (DRC). The TAS5805M features TI's proprietary Hybrid Modulation scheme, which significantly reduces quiescent current, thereby extending battery life in portable audio applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | HTSSOP (PWP), 28 pins |
| Operating Temperature Range | -25°C to 85°C |
| Power Supply Range (PVDD) | 4.5 V to 26.4 V |
| Digital and I/O Voltage | 1.8 V or 3.3 V |
| Output Power (Stereo Mode) | 2 × 23 W (8-Ω, 21 V, THD+N=1%) |
| Output Power (Mono Mode) | 45 W (4-Ω, 21 V, THD+N=1%) |
| Total Harmonic Distortion + Noise (THD+N) | ≤ 0.03% at 1 W, 1 kHz, PVDD = 12 V |
| Signal-to-Noise Ratio (SNR) | ≥ 107 dB (A-weighted) |
| Quiescent Current | 16.5 mA at PVDD = 13.5 V |
| Sample Rates | 32, 44.1, 48, 88.2, 96 kHz |
Key Features
- Supports multiple output configurations: stereo and mono modes.
- Excellent audio performance with low THD+N and high SNR.
- Flexible power supply configurations: PVDD from 4.5 V to 26.4 V, and DVDD/I/O at 1.8 V or 3.3 V.
- Flexible audio I/O: supports I2S, LJ, RJ, TDM, and 3-wire digital audio interface.
- Integrated audio processor with advanced features: SRC, volume control, audio mixing, multi-band DRC, full-band AGL, THD manager, and level meter.
- TI's proprietary Hybrid Modulation scheme for low quiescent current.
- Advanced EMI suppression technology allowing inductor-less operation with ferrite bead filters.
- Integrated self-protection features: over-current error, over-temperature warning/error, under/over-voltage lock-out.
- I2C software control for easy system integration and reduced solution size.
Applications
- LCD TV, OLED TV
- Wireless speakers, smart speakers with voice assistants
- Soundbars, wired speakers, bookshelf stereo systems
- Desktop PCs, notebook PCs
- AV receivers, smart home and IoT appliances
Q & A
- What is the TAS5805M?
The TAS5805M is a high-efficiency, stereo, closed-loop Class-D amplifier from Texas Instruments.
- What are the key output power specifications of the TAS5805M?
The TAS5805M can deliver 2 × 23 W in stereo mode and 45 W in mono mode.
- What is the operating temperature range of the TAS5805M?
The operating temperature range is -25°C to 85°C.
- What are the supported sample rates for the TAS5805M?
The device supports sample rates of 32, 44.1, 48, 88.2, and 96 kHz.
- What is the quiescent current of the TAS5805M?
The quiescent current is 16.5 mA at PVDD = 13.5 V.
- Does the TAS5805M support inductor-less operation?
- What are some of the integrated self-protection features of the TAS5805M?
The device includes over-current error, over-temperature warning/error, under/over-voltage lock-out, and adjacent pin to pin short protection.
- How does the TAS5805M enhance audio performance?
The device features advanced audio processing including SRC, volume control, audio mixing, multi-band DRC, full-band AGL, THD manager, and level meter.
- What are some common applications for the TAS5805M?
- How is the TAS5805M controlled and configured?
