TAS5825P Amplifier Datasheet

TAS5825P Datasheet, PDF, Equivalent


Part Number

TAS5825P

Description

High Efficiency Closed-Loop Class-D Audio Amplifier

Manufacture

etcTI

Total Page 30 Pages
Datasheet
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TAS5825P
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TAS5825P
SLASET9 – OCTOBER 2019
TAS5825P 4.5 V to 26.4 V, 38 W Stereo, Digital Input, High Efficiency Closed-Loop Class-D
Audio Amplifier with Hybrid-Pro Algorithm
1 Features
1 High-efficiency Class-D operation with Hybrid-Pro:
– Approximately 50% longer battery life
compared to fixed supply voltage solutions
– > 90% Power efficiency, 90 mΩ RDSon
– Low quiescent current, < 20 mA at 12 V PVDD
• Supports multiple output configurations:
– 1 × 53 W, 1.0 Mode (4-Ω, 22 V, THD+N=1%)
– 1 × 65 W, 1.0 Mode (4-Ω, 22 V, THD+N=10%)
– 2 × 30 W, 2.0 Mode (8-Ω, 24 V, THD+N=1%)
– 2 × 38 W, 2.0 Mode (8-Ω, 24 V, THD+N=10%)
• Excellent audio performance:
– THD+N 0.03% at 1 W, 1 kHz, PVDD = 12 V
– SNR 110 dB (A-weighted), ICN 35 µVRMS
• Flexible audio I/O:
– Supports 32, 44.1, 48, 88.2, 96 kHz SR
– Supports I2S, LJ, RJ, TDM format
– Supports 3-wire digital audio interface
• Flexible processing features:
– 3-Band advanced DRC + AGL, 2 × 15 BQs
– PVDD sensing to avoid clipping distortion while
voltage rail drops
– Up to 4 ms lookahead delay buffer for Hybrid-
Pro algorithm audio signal tracking
– Optional 8 or 16 Hybrid-Pro DC-DC control
steps with max 10 ms peak sample hold
• Flexible power supply configurations:
– PVDD: 4.5 V to 26.4 V
– DVDD and I/O: 1.8 V or 3.3 V
• Excellent integrated self-protection:
– Over-current error (OCE)
– Cycle-by-cycle current limit
– Over-temperature warning (OTW)
– Over-temperature error (OTE)
– Under, over-voltage lock-out (UVLO, OVLO)
• Easy System Integration:
– I2C Software Control
– Reduced solution size:
– Small 5 × 5 mm package
– Fewer passives required compared to
open-loop Class-D devices
– No bulky electrolytic capacitors or large
inductors required for most applications
1
2 Applications
Battery-powered speaker
Set-top box (STB)
Soundbar or Subwoofer
Wireless or Bluetooth speaker
Heat or efficiency sensitive audio system
3 Description
TAS5825P is a stereo high-efficiency Closed-Loop
audio Class-D audio amplifier with an advanced
Hybrid-Pro algorithm to improve system efficiency
and reduce heat without clipping distortion.
The supply voltage (PVDD) of an audio amplifier is
normally provided by a DC-DC converter. Compared
with a fixed PVDD, a variable PVDD that fluctuates
based on the audio signal significantly improves
efficiency, lowers idle current, and reduces heat.
The powerful audio DSP core of TAS5825P
implements a proprietary algorithm called Hybrid-Pro.
The Hybrid-Pro algorithm detects the upcoming audio
power demand and provides a PWM control signal for
the former DC-DC converter via the Hybrid-Pro
feedback pin (HPFB). The TAS5825P supports up to
4 ms of delay buffer to look ahead at the audio signal
and prevent audio clipping distortion. In various
experiments, the TAS5825P increased the runtime of
1S and 2S batteries by greater than 50% while
continuously playing music.
Device Information(1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TAS5825P
VQFN (32) RHB 5.00 mm × 5.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Audio Signal
TAS5825P
Hybrid-Pro Control Algorithm
Hybrid-Pro
Delay Buffer
8-bit ADC
PVDD Sensing
Digital to PWM
Hybrid PWM
Modulation
AMP Left
AMP Right
Battery V_battery
PVDD Feedback Loop Control
DC-DC Converter
FB
LPF &
Matching Resistor
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.

TAS5825P
TAS5825P
SLASET9 – OCTOBER 2019
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 5
7.1 Absolute Maximum Ratings ...................................... 5
7.2 ESD Ratings.............................................................. 5
7.3 Recommended Operating Conditions....................... 5
7.4 Thermal Information .................................................. 5
7.5 Electrical Characteristics........................................... 6
7.6 Timing Requirements ................................................ 9
7.7 Typical Characteristics ............................................ 10
8 Parameter Measurement Information ................ 27
9 Detailed Description ............................................ 28
9.1 Overview ................................................................. 28
9.2 Functional Block Diagram ....................................... 28
9.3 Feature Description................................................. 29
9.4 Device Functional Modes........................................ 35
9.5 Programming and Control ....................................... 40
9.6 Register Maps ......................................................... 46
10 Application and Implementation........................ 80
10.1 Application Information.......................................... 80
10.2 Typical Applications ............................................. 82
11 Power Supply Recommendations ..................... 87
11.1 DVDD Supply ........................................................ 87
11.2 PVDD Supply ........................................................ 88
12 Layout................................................................... 89
12.1 Layout Guidelines ................................................. 89
12.2 Layout Example .................................................... 91
13 Device and Documentation Support ................. 93
13.1 Device Support...................................................... 93
13.2 Receiving Notification of Documentation Updates 93
13.3 Community Resources.......................................... 94
13.4 Trademarks ........................................................... 94
13.5 Electrostatic Discharge Caution ............................ 94
13.6 Glossary ................................................................ 94
14 Mechanical, Packaging, and Orderable
Information ........................................................... 94
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
DATE
October 2019
REVISION
*
NOTES
Initial release.
2 Submit Documentation Feedback
Product Folder Links: TAS5825P
Copyright © 2019, Texas Instruments Incorporated


Features Product Folder Order Now Technical Doc uments Tools & Software Support & Com munity TAS5825P SLASET9 – OCTOBER 20 19 TAS5825P 4.5 V to 26.4 V, 38 W Stere o, Digital Input, High Efficiency Close d-Loop Class-D Audio Amplifier with Hyb rid-Pro Algorithm 1 Features •1 High -efficiency Class-D operation with Hybr id-Pro: – Approximately 50% longer ba ttery life compared to fixed supply vol tage solutions – > 90% Power efficien cy, 90 mΩ RDSon – Low quiescent curr ent, < 20 mA at 12 V PVDD • Supports multiple output configurations: – 1 53 W, 1.0 Mode (4-Ω, 22 V, THD+N=1%) – 1 × 65 W, 1.0 Mode (4-Ω, 22 V, T HD+N=10%) – 2 × 30 W, 2.0 Mode (8-Ω , 24 V, THD+N=1%) – 2 × 38 W, 2.0 Mo de (8-Ω, 24 V, THD+N=10%) • Excellen t audio performance: – THD+N ≤ 0.03 % at 1 W, 1 kHz, PVDD = 12 V – SNR 110 dB (A-weighted), ICN ≤ 35 µVRM S • Flexible audio I/O: – Supports 32, 44.1, 48, 88.2, 96 kHz SR – Suppo rts I2S, LJ, RJ, TDM format – Supports 3-wire digital audio interface • Flexible processing features: – 3-Band .
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