TAS2563 Texas instruments

TAS2563

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TAS2563

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Описание

The TAS2563 is a digital input Class-D audio amplifier optimized for efficiently driving high peak power into small loudspeakers. The Class-D amplifier is capable of delivering 6.1 W of peak power into a 4 Ω load at battery voltage of 3.6 V using the integrated 11.5V Class-H boost, or 10W peak power into 4Ω load in boost bypass mode using external 12V supply.An on-chip, low-latency DSP supports Texas Instruments SmartAmp speaker protection algorithms. The integrated current and voltage sense provide for real-time monitoring of the loudspeakers, which permits pushing peak sound pressure levels (SPL) while keeping speakers from being damaged.The integrated look-ahead Class-H boost dynamically adjusts boost voltage during playback, increasing efficiency and saving battery life in battery-powered systems. For regulated wall-powered systems, TAS2563 also features a boost bypass mode, supporting supply voltages of up to 16V for even higher output power.Two PDM microphone inputs simplify audio signal chain for two-way audio systems, interfacing digital microphones with the host processor. A battery tracking peak voltage limiter with brown-out protection prevents systems shutdowns by optimizing amplifier headroom over the entire charge cycle.

Key Features
- 11.5 V, 12-step Look-Ahead Class-H boost
- Integrated DSP
- Full Scale Ultrasonic Output to 40kHz
- 2 PDM Microphone inputs
Powerful Class-D Audio Amplifier :
- 6.1 W 1% THD+N (4 Ω, 3.6 V)
- 5 W 1% THD+N (8 Ω, 3.6 V)
- 10 W 1% THD+N (4 Ω, 12 V)
Protection Features:
- Real-Time I/V-Sense Speaker Protection
- Speaker Thermal & Over-Excursion Protection
- Short and Open Load Protection
- Thermal and Over-Current Protection
Advanced Audio Processing
- Dedicated Real-Time DSP with:
  - 10-Band Equalizer
  - 3-Band Dynamic EQ
  - Dynamic Range Compression
  - Psychoacoustic Bass
Flexible Interfaces and Control :
- I²S/TDM: 8 Channels of 32 Bit up to 96 KSPS
- I²C: Selectable Addresses with Fast Mode+
- Inter-Chp Communication Bus (DSBGA)
- 8 kHz to 96 kHz Sample Rates
Power Efficiency and Flexibility :
- 83.5% Efficiency at 1W
- <1uA HW Shutdown VBAT Current
- Boost-Bypass Mode
Power Supplies and Management
- VBAT: 2.5 V to 5.5 V
- VDD: 1.62 V to 1.95 V
- PVDD: VBAT to 13 V (QFN)
- PVDD: VBAT to 16 V (DSBGA)
- IOVDD: 1.65 V to 3.6 V
- VBAT Tracking Peak Voltage Limiter
- Advanced Brown Out Prevention

Audio input type	Digital Input
Architecture	Class-D Boosted, Smart Amp
Speaker channels (max)	Mono
Rating	Catalog
Power stage supply (max) (V)	16
Power stage supply (min) (V)	2.7
Load (min) (Ω)	3.2
Output power (W)	6.1
SNR (dB)	112.5
THD + N at 1 kHz (%)	0.01
Iq (typ) (mA)	2.7
Control interface	I2C
Closed/open loop	Closed
Analog supply (min) (V)	2.7
Analog supply (max) (V)	5.5
Sampling rate (max) (kHz)	96
PSRR (dB)	100
Operating temperature range (°C)	-40 to 85