Datasheet
0,1
1
10
tal Harmonic Distortion - %
4Ohm (6kHz)
4Ohm(1kHz)
TOTAL HARMONIC DISTORTION+NOISE
VS
OUTPUT POWER
0,001
0,01
0,1
1
10
0,01 1 100
THD+N - Total Harmonic Distortion - %
P
O
- Output Power - W
4Ohm (6kHz)
4Ohm(1kHz)
TOTAL HARMONIC DISTORTION+NOISE
VS
OUTPUT POWER
TC = 75 C
CONFIG = BTL
TAS5611
www.ti.com
SLAS681A –DECEMBER 2009–REVISED APRIL 2010
125W STEREO / 250W MONO PurePath™ HD ANALOG-INPUT POWER STAGE
Check for Samples: TAS5611
1
FEATURES
APPLICATIONS
• Home Theater Systems
23
• PurePath™ HD Enabled Integrated Feedback
Provides:
• AV Receivers
• DVD/Blu-ray Receivers
– Signal Bandwidth up to 80kHz for High
Frequency Content From HD Sources
• Mini Combo System
• Active Speakers and Subwoofers
– Ultralow 0.03% THD at 1W into 4Ω
– Flat THD at all Frequencies for Natural
DESCRIPTION
Sound
– 80dB PSRR (BTL, No Input Signal) The TAS5611 is a high performance analog input
Class D amplifier with integrated closed loop
– >100dB (A weighted) SNR
feedback technology (known as PurePath™ HD) with
– Click and Pop Free Startup
the ability to drive up to 125W
(1)
Stereo into 4 to 8 Ω
• Pin compatible with TAS5630, TAS5615 and
Speakers from a single 32.5V supply.
TAS5613
PurePath™ HD technology enables traditional
• Multiple Configurations Possible on the Same
AB-Amplifier performance (<0.03% THD) levels while
PCB With Stuffing Options:
providing the power efficiency of traditional class D
amplifiers.
– Mono Parallel Bridge Tied Load (PBTL)
– Stereo Bridge Tied Load (BTL)
Unlike traditional Class D amplifiers, the distortion
curve only increases once the output levels move into
– 2.1 Single Ended Stereo Pair and Bridge
clipping. PurePath™ HD Power PAD™
Tied Load Subwoofer
PurePath™ HD technology enables lower idle losses
• Total Output Power at 10%THD+N
making the device even more efficient.
– 250W in Mono PBTL Configuration into 2Ω
– 125W per Channel in Stereo BTL
Configuration into 4Ω
• Total Output Power in BTL configuration at
1%THD+N
– 130W Stereo into 3Ω
– 105W Stereo into 4Ω
– 70W Stereo into 6Ω
– 55W Stereo into 8Ω
• >90% Efficient Power Stage With 60-mΩ
Output MOSFETs
• Self-Protection Design (Including
Undervoltage, Overtemperature, Clipping, and
Short-Circuit Protection) With Error Reporting
• EMI Compliant When Used With
Recommended System Design
• Two Thermally Enhanced Package Options:
(1) Achievable output power levels are dependent on the thermal
– PHD (64-Pin QFP)
configuration of the target application. A high performance
– DKD (44-Pin PSOP3)
thermal interface material between the package exposed
heatslug and the heat sink should be used to achieve high
output power levels.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2PurePath, Power PAD are trademarks of Texas Instruments.
3All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 2009–2010, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.