TAS5755M Texas instruments

TAS5755M

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TAS5755M

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Описание

The TAS5755M is a single-chip flexible digital audio solution with integrated processing that supports 2.1 (2 speakers + subwoofer), 2.0 or stereo (2 speakers) and mono (high power speaker) modes. Its high efficiency, low 80 mΩ RDSON and pad-up package allows the device to output up to 2 × 50 W or 1 × 100 W. TAS5755M leverages 2 full H-bridges which are used for each channel in stereo mode. In 2.1 mode, TAS5755M runs 2 independent speaker channels using 2 half-bridges while using a full-bridge to drive a subwoofer. Finally, in mono mode, TAS5755M supports pre-filter parallel bridge tied load (PBTL) using only one filter stage to reduce total system size and cost. TAS5755M has integrated audio processing. It includes: signal mixing, DC blocking filters, 2 × 8 + 1 × 2 biquads for equalization. Power limiting is implemented by leveraging a two-band log-style DRC and a separate single-band DRC for the subwoofer channel.

Reduced Sol
- Single-chip 2.1, 2.0 and Mono Mode Capable
- Single-filter in Mono (PBTL) Mode.
- Pad-up Package and 80 mΩ R_DSON Enhances Thermal Performance
High Output Power capable:
- 2 × 19 W +1 × 50 W in 2.1 mode
  (2 × 4 Ω + 1 × 6 Ω, 24 V)
- 2 × 50 W in 2.0 mode (2 × 6 Ω, 24 V)
- 1 × 100 W in Mono Mode (1 × 2 Ω, 24 V)
- Wide Voltage Range: 8 V to 26.4 V
Audio Performance Audio:
- THD+N ≤ 0.05% at 1 kHz (R_SPK = 8 Ω, POUT = 1 W, PVDD = 18 V)
- ICN ≤ 50 µVRMS
- Crosstalk ≤ - 67 dB
- SNR ≥ 104 dB
- BD Modulation Available, for Improved Audio Performance and Efficiency.
Integrated Audio Processing:
- 2 × 8 + 1 × 2 Biquads
- Two-band + Single-band configurable Dynamic Range Control (DRC)
- License-Free 3D Effects
- Signal Mixing and DC blocking filter
- Automatic Rate Detection
Integrated Self-protection
- Thermal Protection
- Over-current Limit Protection
- Under-voltage Protection

Audio input type	Digital Input
Architecture	Class-D
Speaker channels (max)	3
Rating	Catalog
Power stage supply (max) (V)	26.4
Power stage supply (min) (V)	8
Load (min) (Ω)	4
Output power (W)	50
SNR (dB)	104
THD + N at 1 kHz (%)	0.05
Iq (typ) (mA)	32
Control interface	I2C, Software
Closed/open loop	Open
Analog supply (min) (V)	3
Analog supply (max) (V)	3.6
Sampling rate (max) (kHz)	48
Operating temperature range (°C)	0 to 125