Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Output Power | 2 × 23 W into 8 Ω at 21 V / 1% THD+N stated; 45 W mono into 4 Ω |
| Power Supply | PVDD 4.5 V to 26.4 V; DVDD/I/O 1.8 V or 3.3 V |
| Digital Audio | I²S, LJ, RJ and TDM; 32–96 kHz sample rates; no MCLK required |
| Audio Performance | ≥107 dB A-weighted SNR stated; THD+N ≤0.03% at 1 W / 1 kHz stated condition |
| Processing | Multiband DRC/AGL, biquads, mixer/crossbar, thermal foldback and other DSP functions |
| Control | I²C software configuration |
| Protection | Overcurrent, overtemperature warning/error, UVLO/OVLO |
| Exact Package / Packing | HTSSOP (PWP), 28 pins; 2000-piece large reel; −25°C to +85°C; marking 5805 |
Product Overview
TAS5805MPWPR combines a digital audio interface, closed-loop Class-D power stage and substantial audio processing in one device. It can accept I²S/TDM directly, so systems with a digital audio processor can avoid a separate DAC before the power amplifier.
The internal processing includes EQ/biquads, multiband dynamics, mixer/crossbar functions and thermal management. Those features move speaker tuning and protection into software, making register/DSP configuration part of the product definition rather than only the PCB BOM.
At lower PVDD and appropriate speaker/cable conditions, TI supports reduced-passive or ferrite-bead output filtering. EMC validation still depends on the actual cable length, enclosure and regulatory target.
For related devices, see HKEQGOO’s Audio Amplifiers category.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | Texas Instruments |
| Exact MPN | TAS5805MPWPR |
| Output Power | 2 × 23 W into 8 Ω at 21 V / 1% THD+N stated; 45 W mono into 4 Ω |
| Power Supply | PVDD 4.5 V to 26.4 V; DVDD/I/O 1.8 V or 3.3 V |
| Digital Audio | I²S, LJ, RJ and TDM; 32–96 kHz sample rates; no MCLK required |
| Audio Performance | ≥107 dB A-weighted SNR stated; THD+N ≤0.03% at 1 W / 1 kHz stated condition |
| Processing | Multiband DRC/AGL, biquads, mixer/crossbar, thermal foldback and other DSP functions |
| Control | I²C software configuration |
| Protection | Overcurrent, overtemperature warning/error, UVLO/OVLO |
| Exact Package / Packing | HTSSOP (PWP), 28 pins; 2000-piece large reel; −25°C to +85°C; marking 5805 |
| Manufacturer Status | Active / Production |
| Part Marking | 5805 |
Functional Highlights
Digital input removes a DAC/analog line stage
Signal remains digital until the amplifier modulation/power stage, reducing analog routing and conversion components.
Integrated DSP can implement speaker tuning and protection
EQ, DRC and thermal foldback can be version-controlled in firmware, enabling one hardware platform to support different speaker/enclosure configurations.
Design Considerations
- Validate DSP coefficients and register image as part of firmware release control.
- Calculate output power from PVDD, speaker impedance and allowed THD, not just the 23-W headline.
- Test filterless/ferrite-bead operation against real speaker cable EMC conditions before production.
Product Status and Exact Order Code
Texas Instruments lists TAS5805MPWPR as Active / Production; HTSSOP (PWP), 28 pins; 2000-piece large tape and reel; −25°C to +85°C; marking 5805.
Related Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. After an order is placed, physical product, label, packaging, and Date Code photos may be provided where appropriate.
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