TAS5825M Texas instruments

TAS5825M

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TAS5825M

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Описание

The TAS5825M is a stereo high-performance closed-loop Class-D with an integrated audio processor and up to 192-kHz support.The powerful audio DSP core supports several advanced audio process flows such as 2×15 BQs, 3-Band DRC, Full-band AGL (Automatic Gain Limiter), Smart Amplifier Algorithm (Thermal and Excursion Protection), Bass enhancement, Spatializer, THD manager, PVDD Tracking, and Thermal Foldback. The TAS5825M has a 48-kHz or 96-kHz architecture with an integrated SRC (Sample Rate Convertor) that detects the input sample rate and auto-converts the input sample to the DSP target sample rate to avoid audio artifacts.

Flexible audio I/O:
- Supports 32, 44.1, 48, 88.2, 96, 192 kHz sample rates
- I²S, LJ, RJ, or TDM
- SDOUT for audio monitoring, sub-channel or echo cancellation
- Supports 3-wire digital audio interface (no MCLK required)
High-efficiency Class-D operation
- > 90% Power efficiency, 90 mΩ R_DS(on)
- Low quiescent current, <20 mA at PVDD=12V
Supports multiple output configurations
- 1 × 53 W, 1.0 Mode (4-Ω, 22 V, THD+N=1%)
- 1 × 65 W, 1.0 Mode (4-Ω, 22 V, THD+N=10%)
- 2 × 30 W, 2.0 Mode (8-Ω, 24 V, THD+N=1%)
- 2 × 38 W, 2.0 Mode (8-Ω, 24 V, THD+N=10%)
Excellent audio performance:
- THD+N ≤ 0.03% at 1 W, 1 kHz, PVDD = 12 V
- SNR ≥ 110 dB (A-weighted), ICN ≤ 35 µVRMS
Flexible processing features
- 3-Band advanced DRC + AGL，2 × 15 BQs,
- Sound field spatializer (SFS), level meter
- 96-kHz, 192-kHz processor sampling
- Dynamic EQ, Bass enhancement and speaker thermal/excursion protection
Flexible power supply configurations
- PVDD: 4.5 V to 26.4 V
- DVDD and I/O: 1.8 V or 3.3 V
Excellent integrated self-protection:
- Over-current error (OCE)
- Cycle-by-cycle current limit
- Over-temperature warning (OTW)
- Over-temperature error (OTE)
- Under and over-voltage lock-out (UVLO/OVLO)
Easy system integration
- I²C Software control
- Reduced solution size
  - Small 5 x 5 mm Package
  - Fewer passives required compared to open-loop devices
  - No bulky electrolytic capacitors or large inductors required for most applications

Audio input type	Digital Input
Architecture	Class-D, Smart Amp
Speaker channels (max)	Stereo
Rating	Catalog
Power stage supply (max) (V)	26.4
Power stage supply (min) (V)	4.5
Load (min) (Ω)	4
Output power (W)	38
SNR (dB)	111
THD + N at 1 kHz (%)	0.02
Iq (typ) (mA)	14.8
Control interface	Software
Closed/open loop	Closed
Analog supply (min) (V)	4.5
Analog supply (max) (V)	26.4
Sampling rate (max) (kHz)	192
Operating temperature range (°C)	-25 to 85