TAS5721_17 Datasheet, PDF (1/78 Pages) Texas Instruments – Digital Audio Power Amplifier With EQ, DRC, 2.1 Support, and Headphone/Line Driver

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
TAS5721
SLOS739A – JULY 2012 – REVISED MARCH 2016
TAS5721 Digital Audio Power Amplifier With EQ, DRC, 2.1 Support, and Headphone/Line
Driver
1 Features
•1 Audio Input/Output
– 10 W x 2 into 8 Ω With PVDD = 24 V
– 8 W x 2 + 12 W x 1 into 8 Ω With PVDD = 24
V
– Supports 2.0, Single Device 2.1, and Mono
Modes
– Supports 8-kHz to 48-kHz Sample Rate
(LJ/RJ/I²S)
– Integrated DirectPath™ Headphone Amplifier
and 2 V_RMS Line Driver
• Audio/PWM Processing
– Independent Channel Volume Controls With
24-dB to Mute in 0.5 dB Steps
– Separate Dynamic Range Control for Satellite
and Sub Channels
– 21 Programmable Biquads for Speaker EQ
– Programmable Two-Band Dynamic Range
Control
– Support for 3D Effects
• General Features
– I²C™ Serial Control Interface Operational
Without MCLK
– Configurable I²C Address (0x34 or 0x36)
– Automatic Sample Rate Detection
– Thermal and Short-Circuit Protection
– Wide PVDD Supply Range (4.5 V to 24 V)
2 Applications
LED/LCD TVs, Soundbar, Docking Stations, PC
Speakers
3 Description
The TAS5721 is an efficient, digital-input audio
amplifier for driving 2.0 speaker systems configured
as a bridge tied load (BTL), 2.1 systems with two
satellite speakers and one subwoofer, or in PBTL
systems driving a single speaker configured as a
parallel bridge tied load (PBTL). One serial data input
allows processing of up to two discrete audio
channels and seamless integration to most digital
audio processors and MPEG decoders. The device
accepts a wide range of input data formats and
sample rates. A fully programmable data path routes
these channels to the internal speaker drivers.
The TAS5721 is a slave-only device, receiving all
clocks from external sources. The TAS5721 operates
with a PWM carrier frequency between a 384-kHz
switching rate and a 288-KHz switching rate,
depending on the input sample rate. Oversampling,
combined with a fourth-order noise shaper, provides
a flat noise floor and excellent dynamic range from 20
Hz to 20 kHz.
An integrated ground centered DirectPath™
combination headphone amplifier and 2V_RMS line
driver is integrated in the TAS5721.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TAS5721
HTSSOP (48)
12.50 mm × 6.10
mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Output Power vs. PVDD in 2.0 Mode
Signal Processing Flow
14 ^{TA = 25°C}
12
10
8
6
RL = 8Ÿ THD+N = 1%
4
RL = 8Ÿ THD+N = 10%
RL = 6Ÿ THD+N = 1%
2
RL = 6Ÿ THD+N = 10%
RL = 4Ÿ THD+N = 1%
RL = 4Ÿ THD+N = 10%
0
8
10 12 14 16 18 20 22 24
Supply Voltage (V)
C001
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.