Exact device and ordering identity
TAS5827RHBR is a digitally controlled, closed-loop stereo Class-D audio amplifier with integrated digital audio processing in a 32-pin RHB VQFN package. It accepts digital audio over serial interfaces and drives loudspeakers through a high-efficiency output stage. This is not an analog-input headphone amplifier: its I2S/TDM source, boot configuration and output filter must be designed into the audio system. The RHB package and control-mode selection are key to sourcing the correct version for an existing soundbar or powered-speaker PCB.
Operating and control considerations
Output-power headlines need precise conditions. TI lists two channels at 47 W into 6 Ω with a 25 V power rail at 1% THD+N, while 57 W into 6 Ω is quoted at 10% THD+N; the latter must not be advertised as a clean-audio continuous power rating. Power depends on load impedance, supply and thermal management. TI supports common audio sample rates up to 192 kHz and I2S, left/right-justified or TDM inputs, plus on-chip dynamic processing and an optional Class-H envelope-tracking interface to external power conversion. The >90% efficiency figure reflects specified test conditions, and PVDD and low-voltage logic supplies use different operating ranges. Hardware-control mode differs from software initialization through I2C.
Package, sourcing and engineering trade-offs
When seeking replacements, compare output bridge configuration (BTL versus PBTL), digital-audio input formats, clocking, register map, DSP/DRC function, PVDD and I/O rails, heatsinking and the 5 × 5 mm RHB exposed pad. A nominally higher-power amplifier can sound worse or trip protection sooner on the actual enclosure/load. RFQs should state TAS5827RHBR, impedance of the loudspeaker, target THD+N, supply voltage, heat path, audio interface and firmware initialization requirement.
Manufacturer-verified selection specifications
| Selection parameter | TI-verified value | Engineering condition |
|---|---|---|
| Power 6ohm | 2 × 47W, BTL Mode(6Ω, 25V, THD+N=1%) | Refer to exact manufacturer operating conditions |
| Power 4ohm | 2 × 45W, BTL Mode(4Ω, 21V, THD+N=1%) | Refer to exact manufacturer operating conditions |
| Audio rates | Supports 32, 44.1, 48, 88.2, 96, 192kHz sample rates | Refer to exact manufacturer operating conditions |
| Audio protocol | I2S, LJ, RJ, 4- 16 channels TDM input | Refer to exact manufacturer operating conditions |
| Efficiency | > 90% power efficiency | Refer to exact manufacturer operating conditions |
| Power supply | PVDD: 4.5V to 26.4V | Refer to exact manufacturer operating conditions |
| Signal noise | SNR ≥ 110dB (A-weighted) | Refer to exact manufacturer operating conditions |
| Catalog package | VQFN-32-EP(5×5) | Match exact TI mechanical drawing before footprint or replacement approval |
Procurement and datasheet
Request a quotation for TAS5827RHBR using the complete orderable number, target quantity and package requirement. Stock, pricing and delivery timing require a direct RFQ confirmation; no on-page availability or price is promised. Source-listed alternative candidates, where present, are for engineering evaluation and do not establish drop-in compatibility.
