Texas Instruments TAS2521 Evaluation Module TAS2521EVM TAS2521EVM Scheda Tecnica
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TAS2521EVM
SLAS687A – FEBRUARY 2013 – REVISED FEBRUARY 2013
Digital Input Class-D Speaker Amplifier with Embedded miniDSP and mono headphone
amplifier
Check for Samples:
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INTRODUCTION
1.1
Features
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• Digital Input Mono Speaker Amp
1.2
Applications
• Instruction-Programmable Embedded miniDSP
•
Portable Audio Devices
• Supports 8-kHz to 192-kHz Sample Rates
•
White goods
• Mono Class-D BTL Speaker Driver (2 W Into
•
Portable Navigation Devices
4
Ω
or 1.7 W Into 8
Ω
)
• Mono Headphone Driver
1.3
Description
• Two Single-Ended Inputs With Output Mixing
and Level Control
The TAS2521 is a low power digital input speaker
• Embedded Power-on-Reset
amp with support for 24-bit digital I2S data mono
• Integrated LDO
playback.
• Built-in Digital Audio Processing Blocks With
In addition to driving a speaker amp upto 4-
Ω
, the
User-Programmable Biquad Filters
device also features a mono headphone driver and a
• Integrated PLL Used for Programmable Digital
fully programmable miniDSP for signal processing.
Audio Processor
The digital audio data format is programmable to
• I
2
S, Left-Justified, Right-Justified, DSP, and
work with popular audio standard protocols (I
2
S,
TDM Audio Interfaces
left/right-justified) in master, slave, DSP and TDM
• I
2
C and SPI control with auto-increment
modes. The fully programmable miniDSP can support
• Full Power-Down Control
several functions such equalization for audio, multi-
• Power Supplies:
band DRC, tone generation and several other user
– Analog: 1.5 V–1.95 V
defined functions. An on-chip PLL provides the high-
– Digital Core: 1.65 V–1.95 V
speed clock needed by the digital signal-processing
– Digital I/O: 1.1 V–3.6 V
block. The volume level can be controlled by register
– Class-D: 2.7 V–5.5 V (SPKVDD
≥
AVDD)
control. The audio functions are controlled using the
• 24-Pin QFN Package (4mm × 4mm)
I
2
C™ serial bus or SPI bus. The device includes an
on-board LDO that runs off the speaker power supply
to handle all internal device analog and digital power
needs. The included POR as power-on-resetcircuit
reliably resets the device into its default state so no
external reset is required at normal usage; however,
the device does have a reset pin for more complex
system initialization needs. The device also includes
two analog inputs for mixing and muxing in both
speaker and headphone analog paths.
to handle all internal device analog and digital power
needs. The included POR as power-on-resetcircuit
reliably resets the device into its default state so no
external reset is required at normal usage; however,
the device does have a reset pin for more complex
system initialization needs. The device also includes
two analog inputs for mixing and muxing in both
speaker and headphone analog paths.
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products conform to
Copyright © 2013, Texas Instruments Incorporated
specifications per the terms of the Texas Instruments standard warranty. Production
processing does not necessarily include testing of all parameters.
processing does not necessarily include testing of all parameters.