TAS5827中文資料德州儀器數(shù)據(jù)手冊PDF規(guī)格書

1 Features

? Supports multiple output configurations

– 2 × 57-W, BTL Mode(6-Ω, 25-V, THD+N=10)

– 2 × 55-W, BTL Mode(4-Ω, 21-V, THD+N=10)

– 2 × 47-W, BTL Mode(6-Ω, 25-V, THD+N=1)

– 2 × 45-W, BTL Mode(4-Ω, 21-V, THD+N=1)

– 1 × 112-W, PBTL Mode(3-Ω, 25-V,

THD+N=10)

– 1 × 94-W, PBTL Mode(3-Ω, 25-V, THD+N=1)

? Flexible audio I/O:

– Supports 32, 44.1, 48, 88.2, 96, 192-kHz

sample rates

– I2S, LJ, RJ, 4- 16 channels TDM input

– SDOUT for audio monitoring, sub-channel, or

echo cancellation

– Supports 3-wire digital audio interface (no

MCLK required)

? High-efficiency Class-D modulation

– > 90 power efficiency, 70 mΩ RDSon

? Excellent audio performance:

– THD+N ≤ 0.03 at 1 W, 1 kHz, PVDD = 12 V

– SNR ≥ 110 dB (A-weighted), ICN ≤ 40 μVrms

? Flexible processing features

– 3-Band advanced DRC + 2 EQs + AGL + 2

EQs

– 12 BQs per channel, level meter

– 96-kHz, 192-kHz processor sampling

– Mixer, volume, dynamic EQ, output crossbar

– PVDD sensing and Class-H algorithm audio

signal tracking

? 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 supports 4

selectable OC levels

– Over-temperature warning (OTW)

– Over-temperature error (OTE)

– Under and over-voltage lock-out (UVLO/OVLO)

– PVDD voltage drop detection

? Easy system integration

– I2C Software Control ( TAS5827 supports both

Fast and Fast Plus mode) or Hardware Mode

– Fewer passives required compared to openloop

devices

2 Applications

? Battery-powered speaker

? Wireless bluetooth speakers

? Soundbars and subwoofers

? Smart speaker

3 Description

The TAS5827 is a stereo high-performance, closedloop

Class-D with integrated audio processor and up

to 192-kHz audio support.

After startup with Software Control Mode, TAS5827

not only implements classic BQs, 3-Band DRC, AGL,

but also proprietary audio envelope tracking Class-H

control algorithm. The Class-H algorithm detects the

required audio power demand and provides a PWM

format control signal to the DC-DC converter via the

GPIO pin. The TAS5827 supports a delay buffer up

to 5 ms in BTL mode or 10 ms in PBTL mode, Class-

H control significantly helps to increase the system

efficiency.

When setting the device into Hardware control mode,

TAS5827 supports selecting switching frequency,

analog gain, BTL/PBTL mode and cycle by cycle

current limit threshold through pin configuration. This

mode is designed to eliminate end system software

driver integration efforts.