TAS5731M_15 Datasheet, PDF (1/81 Pages) Texas Instruments – TAS5731M 2 × 30-W Digital Audio Power Amplifier With DSP and 2.1 Mode

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TAS5731M
SLOS838C – JULY 2013 – REVISED AUGUST 2015
TAS5731M 2 × 30-W Digital Audio Power Amplifier With DSP and 2.1 Mode
1 Features
•1 2-Ch I²S Input; 8-kHz to 48-kHz f_S
• 30-W Stereo, 8 Ω/24 V (THD+N = 10%)
• Up to 90% Efficient Operation
• Wide 8-V to- 24-V Supply Range; 3.3-V Digital
Supply
• Single-Device 2.1 Support (2 × SE + 1 × BTL)
• 80-mΩ R_DS(on) Device That Can Support 2-Ω SE
and 4-Ω BTL Modes
– 12 V, 2 Ω, 8 W With SE mode
– 12 V, 4 Ω, 15 W With BTL mode
• Speaker EQ (8 BQ per Channel), 2× DRCs
• Pin-to-Pin Compatible With the TAS5727 and
TAS5731
• Benefits:
– Direct Connect to Digital Processor
– High Output Power From a Standard Supply
– Eliminates the Need for Heat Sink
– Advanced Processing Improves Audio
Experience
2 Applications
• LCD TV
• LED TV
• Sound Bar
space
Power vs Supply Voltage (2.0 BTL Mode)
40
2.0 BTL Mode
35
R_L = 8Ÿ
T_A = 25ƒC
3 Description
The TAS5731M is a 30-W, efficient, digital-audio
stereo power amplifier for driving stereo bridge-tied
speakers. 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 and data rates. A fully programmable data
path routes these channels to the internal speaker
drivers.
The TAS5731M is a slave-only device receiving all
clocks from external sources. The TAS5731M
operates with a PWM carrier between a 384-kHz
switching rate and a 352-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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TAS5731M
HTQFP (48)
7.00 mm × 7.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Power vs Supply Voltage (PBTL Mode)
80
PBTL Mode
70
R_L = 4Ÿ
T_A = 25ƒC
30
60
25
50
20
40
15
30
10
5
0
8
2 Layer Continuous Power
4 Layer Continuous Power
Instantaneous Power
10 12 14 16 18 20 22 24
Supply Voltage (V)
C014
20
10
0
8
2 Layer Continuous Power
4 Layer Continuous Power
Instantaneous Power
10 12 14 16 18 20 22 24
Supply Voltage (V)
C039
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.