TAS2505 Datasheet, PDF (1/30 Pages) Texas Instruments – Digital Input Mono Speaker Amp

TAS2505
www.ti.com
SLAS778A – FEBRUARY 2013 – REVISED FEBRUARY 2013
Digital Input Class-D Speaker Amplifier with Audio Processing and mono headphone
amplifier
Check for Samples: TAS2505
1 INTRODUCTION
1.1 Features
•12 Digital Input Mono Speaker Amp
• Supports 8-kHz to 96-kHz Sample Rates
• Mono Class-D BTL Speaker Driver (2 W Into
4 Ω or 1.7 W Into 8 Ω)
• Mono Headphone Driver
• Two Single-Ended Inputs With Output Mixing
and Level Control
• Embedded Power-on-Reset
• Integrated LDO
• Programmable Digital Audio Processing Blocks
for Bass Boost, Treble, EQ With up to Six
Biquads for Playback
• Integrated PLL Used for Programmable Digital
Audio Processing Blocks
• I²S, Left-Justified, Right-Justified, DSP, and
TDM Audio Interfaces
• I²C Control and SPI control with auto-increment
• Full Power-Down Control
• Power Supplies:
– Analog: 1.5 V–1.95 V
– Digital Core: 1.65 V–1.95 V
– Digital I/O: 1.1 V–3.6 V
– Class-D: 2.7 V–5.5 V (SPKVDD ≥ AVDD)
• 24-Pin QFN Package (4mm × 4mm)
1.2 Applications
• Portable Audio Devices
• White goods
• Portable Navigation Devices
1.3 Description
The TAS2505 is a low power digital input speaker
amp with support for 24-bit digital I2S data mono
playback.
In addition to driving a speaker amp upto 4-Ω, the
device also features a mono headphone driver and a
programmable digital-signal processing block. The
digital audio data format is programmable to work
with popular audio standard protocols (I²S, left/right-
justified) in master, slave, DSP and TDM modes. The
programmable digital-signal processing block can
support Bass boost, treble, or EQ functions. An on-
chip PLL provides the high-speed clock needed by
the digital signal-processing block. The volume level
can be controlled by register control. The audio
functions are controlled using the I²C™ 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.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
I²C is a trademark of NXP B.V. Corporation.
2
PRODUCTION DATA information is current as of publication date. Products conform to
specifications per the terms of the Texas Instruments standard warranty. Production
processing does not necessarily include testing of all parameters.
Copyright © 2013, Texas Instruments Incorporated