TAS5727_16 Datasheet, PDF (1/70 Pages) Texas Instruments – Digital Audio Power Amplifier

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TAS5727
SLOS670A – NOVEMBER 2010 – REVISED MAY 2016
TAS5727 25-W Digital Audio Power Amplifier With EQ and DRC
1 Features
•1 Audio Input and Output
– 25 W Into an 8-Ω Load From a 20-V Supply
– Wide PVDD Range, From 8 V to 26 V
– Supports BTL Configuration With 4-Ω Load
– Efficient Class-D Operation Eliminates Need
for Heatsinks
– One Serial Audio Input (Two Audio Channels)
– I²C Address Selection Pin (Chip Select)
– Single Output Filter PBTL Support
– Supports 44.1-kHz to 48-kHz Sample Rate
(LJ/RJ/I²S)
• Audio and PWM Processing
– Independent Channel Volume Controls With
Gain of 24 dB to Mute With 0.125-dB
Resolution Steps
– Programmable Two-Band Dynamic-Range
Control
– 18 Programmable Biquads for Speaker EQ
and Other Audio-Processing Features
– Programmable Coefficients for DRC Filters
– DC Blocking Filters
• General Features
– I²C Serial Control Interface Operational
Without MCLK
– Requires Only 3.3 V and PVDD
– No External Oscillator: Internal Oscillator for
Automatic Rate Detection
– Surface-Mount, 48-Pin HTQFP Package
– Thermal and Short-Circuit Protection
– 106-dB SNR, A-Weighted
– AD, BD, and Ternary Modulation
– Up to 90% Efficient
– PWM Level Meter to Measure the Digital
Power Profile
• Benefits
– EQ: Speaker Equalization Improves Audio
Performance
– Two-Band DRC: Dynamic Range
Compression. Can Be Used As Power Limiter.
Enables Speaker Protection, Easy Listening,
Night-Mode Listening
– Autodetect: Automatically Detects Sample-
Rate Changes. No Need for External
Microprocessor Intervention
2 Applications
• LCD TV, LED TV, Soundbar
3 Description
The TAS5727 is a 25-W, efficient, digital-audio 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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TAS5727
HTQFP (48)
7.00 mm × 7.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Functional View
SDIN
Serial
Audio
Port
Digital Audio Processor
(DAP)
S
R
C
MCLK
SCLK
LRCLK
Sample Rate
Autodetect
and PLL
SDA
SCL
Serial
Control
Terminal Control
Microcontroller
Based
System
Control
Click and Pop
Control
4^th
Order
Noise
Shaper
and
PWM
2´ HB
FET Out
OUT_A
OUT_B
2´ HB
FET Out
OUT_C
OUT_D
Protection
Logic
B0262-06
Copyright © 2016 Texas Instruments Incorporated
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.