TAS5101DAP - 2x15W True Digital Stereo Class D Power Stage | Texas Instruments
Référence : TAS5101DAP ✓ ActifTAS5101DAP Présentation
A digital audio power amplifier converts audio data into a full-power digital PWM stream that is then reproduced by a switching output stage. Because the signal stays in the digital domain until the final switching transistors, distortion products do not accumulate through an analog chain, and amplifier performance becomes a function of the digital word stream rather than of analog linearity. Within the amplifier IC category, the TAS5101DAP sits between a digital audio host (for example TAS5000PFB) and the loudspeaker, forming the output-power stage of a true digital amplification system.
Key features include TI equibit technology for channel-to-channel matching, greater than 90 % power efficiency that shrinks the required power supply and heat sink, single-ended output configuration for simplified speaker connection, and a low-profile surface-mount HTSSOP-32 footprint with an exposed pad for thermal dissipation. Dynamic range above 95 dB in a TDAA system means the power stage contributes very little of its own noise to the overall audio path.
Technically, the device is a true digital amplifier rather than a self-contained analog-input Class D codec. It requires an external PWM-capable digital audio processor, and the host must supply the 3.3 V stereo PWM signal. Because there is no analog input stage, there is no analog volume control inside the part; gain and volume are handled upstream in the digital domain, which is what allows the power stage to remain a small, efficient, and reproducible module.
Typical applications include powered loudspeakers, home theater and active speaker systems, digital mixer consoles, multi-room networked audio amplifiers, soundbar and flat-panel television audio, and professional monitor amplifiers where the 2 x 15 W per channel capability and high efficiency keep thermal mass and cost low.
The key design consideration is heat: even at 90 % efficiency, a 30 W stereo output dissipates several watts in the output stage, so the exposed pad must be soldered to a generously sized ground copper pour, and the host must be able to deliver a clean 3.3 V PWM stream with matched channel timing. Place the decoupling capacitors directly across the supply and ground pins on the pad side of the package to keep switching current loops tight.
This page combines manufacturer specification data, a parameter-by-parameter drop-in comparison, and practical layout and thermal guidance that goes beyond the basic orderable information normally published for this amplifier.
Alternatives de remplacement direct pour TAS5101DAP — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec TAS5101DAP (même facteur de forme et même empreinte) — différant par Mounting Type, Number of Channels.
TAS5101IDAPG4
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
TAS5102DAP
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
TAS5111DAP
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
TAS5103DAP
✅ Remplacement direct ⚠️ Spécifications non vérifiéesContactez-nous pour le prix
Voir la fiche technique →TAS5101DAP Valeurs maximales et caractéristiques électriques
| Output Power per Channel | 15 W RMS into 4 ohm |
| Number of Channels | 2 (stereo) |
| Amplifier Class | Class D (true digital PWM power stage) |
| Input Format | Stereo PWM, 3.3 V |
| Configuration de sortie | Single-ended |
| Dynamic Range | >95 dB (TDAA system) |
| Total Harmonic Distortion + Noise (THD+N) | 0.1 % at 1 kHz, 15 W RMS into 4 ohm |
| Power Efficiency | >90 % into 8 ohm load |
| Boîtier | 32-pin HTSSOP (DAP) with exposed pad |
| Nombre de broches | 32 pins |
| Package Width | 0.240 in (6.10 mm) |
| Type de montage | Surface mount, gull wing terminal form |
| Temperature Grade | Commercial |
Guide de configuration des broches du TAS5101DAP 0.240 in (6.10 mm)
Configuration des broches du TAS5101DAP (boîtier 0.240 in (6.10 mm)). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour TAS5101DAP.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
TAS5101DAP convient pour 6 applications: Powered Speaker and Home Theater Amplifier, Digital Audio Mixer and Console Output Stage, Networked and Multi-Room Audio Amplifier, Soundbar and Flat-Panel Television Audio, PC and USB Audio Amplification, Powered Monitor and Studio Reference Speakers.
Powered Speaker and Home Theater Amplifier
The TAS5101DAP suits powered speakers and home theater amplifiers because it delivers 2 x 15 W RMS into 4 ohm with 0.1 % THD+N at 1 kHz and greater than 95 dB dynamic range in a TDAA system. A TAS5000PFB-class host converts the source audio into a 3.3 V stereo PWM stream that the power stage amplifies directly to the drivers. The advantage over an analog Class D design is that gain, volume, and EQ stay in the digital domain, so noise pickup and channel imbalance are minimized and settings are reproducible. Efficiency above 90 % into 8 ohm keeps the power supply small and the heat sink modest, which matters in a slim cabinet behind a wall or under a TV stand.
Recommandé
Digital Audio Mixer and Console Output Stage
In a digital mixer, mixing happens in the digital domain and the TAS5101DAP serves purely as the power output stage, which keeps the signal path free of analog distortion. Its 15 W per channel into 4 ohm suits stage monitors and small powered cabinets, and the greater than 90 % efficiency into 8 ohm load lets several channels share one supply without thermal overload. The device requires no analog volume control inside the module, so fader moves, mute, and gain staging are handled digitally by the host, which also removes trim-pot drift and noise. Because the output is single-ended, only one differential input/output filter network per channel is required on the board.
Recommandé
Networked and Multi-Room Audio Amplifier
Networked amplifiers stream digital audio over a network, decode it in the host processor, and then need a power stage that does not add audible noise to the stream. The TAS5101DAP is a natural fit because its greater than 95 dB dynamic range in a TDAA system contributes negligible self-noise, and the digital gain path prevents analog hiss from accumulating between the decoder and the speaker. With 2 x 15 W per channel and greater than 90 % efficiency into 8 ohm, a single module can drive typical living-room or kitchen speakers from a compact enclosure. The host controls volume and channel routing, so multiple rooms can share one power supply while keeping per-room gain independent.
Recommandé
Soundbar and Flat-Panel Television Audio
Soundbar and flat-panel designs have thin enclosures with little room for heat sinking, which is exactly where a high-efficiency digital power stage pays off. The TAS5101DAP converts more than 90 % of DC input into audio power into 8 ohm, so a 2 x 15 W amplifier module fits in a fraction of the space a linear amplifier would need, and the 32-pin HTSSOP with exposed pad mounts directly to a PCB ground pour rather than a bolted heat sink. Single-ended outputs reduce the number of output filter components compared with bridge-tied stages. In these products the digital host also handles Dolby-style decoding, loudness compensation, and speaker protection, so the power stage only needs to reproduce the PWM stream faithfully.
Recommandé
PC and USB Audio Amplification
PC-based playback chains usually terminate in a headphone or line-level output that cannot drive speakers directly, so a digital power stage provides the bridge between a USB or PC audio source and passive speakers. In this chain, the TAS5101DAP takes the 3.3 V stereo PWM signal from the digital audio host and produces 2 x 15 W into 4 ohm, delivering 0.1 % THD+N at 1 kHz and greater than 95 dB dynamic range so quiet passages remain free of added hiss. The digital host manages volume, so no analog potentiometer is needed and the amplifier can be muted or attenuated entirely in the digital domain. The exposed-pad package also keeps the assembly compact for desktop and active-monitor form factors.
Recommandé
Powered Monitor and Studio Reference Speakers
Near-field studio monitors demand low distortion and repeatable channel balance at moderate levels, which the TAS5101DAP provides through its 0.1 % THD+N at 15 W RMS into 4 ohm and the equibit channel-matching technology. Because the gain and balance are applied digitally upstream, there is no analog trim or dual-amp offset to drift over time, and both channels share identical signal paths and thermal conditions. Efficiency above 90 % into 8 ohm means the monitor amplifier runs cool even during long listening sessions, protecting both the driver and the PCB. The 32-pin HTSSOP exposed-pad package also simplifies the mechanical design of an active monitor where the amplifier sits directly behind the driver on a rigid board.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour TAS5101DAP — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | TAS5101IDAPG4 | TAS5102DAP | TAS5111DAP | TAS5103DAP |
|---|---|---|---|---|---|
| Package | 32-pin HTSSOP (DAP) with exposed pad | 32-pin HTSSOP (DAP) with exposed pad - same | 32-pin HTSSOP (DAP) with exposed pad - same | 32-pin HTSSOP (DAP) with exposed pad - same | 32-pin HTSSOP (DAP) with exposed pad - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Amplifier Class | Class D, true digital PWM power stage | Class AB - different topology | Class D, true digital PWM power stage | Class D, true digital PWM power stage | Class D, true digital PWM power stage |
| Input Interface | Stereo PWM, 3.3 V | Analog input - different host interface | Stereo PWM, 3.3 V | Stereo PWM, 3.3 V | Stereo PWM, 3.3 V |
| Required Companion Host | TAS50xx digital audio host (PWM output) | Analog source, no TAS50xx host required | TAS50xx digital audio host (PWM output) | TAS50xx digital audio host (PWM output) | TAS50xx digital audio host (PWM output) |
Principaux différenciateurs
- True digital power path eliminates analog input stages and volume control (vs TAS5101IDAPG4)
- High efficiency supports sealed and compact enclosures (vs TAS5101IDAPG4)
- Documented low distortion at rated output (vs TAS5102DAP)
- Digital channel matching through equibit technology (vs TAS5101IDAPG4)
Notes de conception
The exposed pad is the primary heat path and the electrical ground reference. Estimated: at 30 W total stereo output with 90 % efficiency, about 3.3 W must be dissipated (P_loss = P_out x (1/eta - 1) = 30 W x (1/0.9 - 1) = 3.3 W). Solder the pad to a continuous ground pour covering at least the full pad area plus a generous copper spill on all layers, and route the supply and ground planes directly to the pad rather than through thin traces, so the switching current loop stays short and the junction temperature rise stays low.
Place the local supply and ground decoupling capacitors directly on the pins they serve, with the ground termination at the exposed pad and the shortest possible via connection into the ground plane. Keep the two PWM input traces away from the speaker output nets and the exposed pad edge, because the PWM edges are fast and carry high di/dt. The single-ended outputs need a proper LC output filter network tuned for the switching frequency; place it close to the output pins and keep the filter loop area small to limit radiated emissions and EMI pickup.
Size the host and the local supply rails so the switching stage is never starved during peak transients. Estimated: with 15 W RMS into 4 ohm per channel the output current peaks near 2.7 A per channel, and because the stage is single-ended with a switching supply current drawn from the rail, the supply must be sized for the full 30 W audio output plus loss. Provide separate, well-decoupled supply paths to the digital input side and the power output side so switching current does not modulate the 3.3 V PWM reference that carries the audio signal.
Do not treat this device as a self-contained amplifier. It has no analog input and no internal volume control, so wiring an analog line-level signal directly to the input pins will not produce audio, and analog gain staging in front of it must be avoided. Also confirm that the host processor drives the PWM stream at the level and phase relationship the device expects, and that the output filter is matched to the PWM switching frequency. A mismatched filter shows up as audible hiss or as instability at low frequency.
Informations de conformité
The device is a commercial-grade TI audio power stage with no automotive qualification indicated. The G4 orderable code denotes the lead-free green finish, but RoHS, REACH, halogen-free, and conflict-minerals statements should be confirmed against the manufacturer material declaration for the exact orderable code. AEC-Q100 does not apply to a commercial-grade part.
