TAS5701 POWER AMPLIFIER Datasheet

TAS5701 Datasheet, PDF, Equivalent


Part Number

TAS5701

Description

20-W STEREO DIGITAL AUDIO POWER AMPLIFIER

Manufacture

etcTI

Total Page 28 Pages
Datasheet
Download TAS5701 Datasheet


TAS5701
TAS5701
www.ti.com
SLOS559A – JUNE 2008 – REVISED AUGUST 2010
20-W STEREO DIGITAL AUDIO POWER AMPLIFIER
Check for Samples: TAS5701
FEATURES
1
• Audio Input/Output
– 20-W Into an 8-Load From an 18-V Supply
– Wide PVDD Range (0 V to 21 V)
– Efficient Class-D Operation Eliminates
Need for Heat Sinks
– Two Serial Audio Inputs (3 Audio channels)
– Supports 32-kHz to 192-kHz Sample Rates
(LJ/RJ/I2S)
– Line-Level Subwoofer PWM Outputs
• Audio/PWM Processing
– BD (Filter-free) Modulation Supporting
Bridge-Tied Loads ONLY
– 4-Step Volume Control (0 dB, 6 dB, 12 dB,
18 dB)
– All Channels Share Same Control
– Soft Mute (50% Duty Cycle)
– DC Blocking Filters
– Fixed Maximum Modulation Limit At 97.7%
100-dB SNR – Measured at Maximum
Output With THD+N = 1%, 1 kHz,
A-Weighted Noise, Gain = 0 dB
– THD < 0.1% at 1/2 Rated Power
• General Features
– 5-V Tolerant Inputs (See pin list for details
on which inputs are 5-V tolerant)
– Shutdown Mode for Low Power
Consumption
– Thermal and Short-Circuit Protection
– Autodetect: Automatically Detect
Sample-Rate Changes – No Need for
External Microprocessor Intervention
DESCRIPTION
The TAS5701 is a 20-W efficient, digital audio power
amplifier for driving stereo bridge-tied speakers. Two
serial data inputs support up to 3 discrete audio
channels. The SDIN1 input is routed to the internal
left and right outputs. The SDIN2 input is dedicated to
the SUB_PWM± outputs.
The TAS5701 is a clock slave-only device receiving
clocks from external sources. The TAS5701 operates
at a 384-kHz switching rate for 32-, 48-, 96-, and
192-kHz data and 352.8-kHz switching rate
44.1-,88.2-, and 176.4-kHz data. The 8×
oversampling combined with the fourth-order noise
shaper provides a flat noise floor and excellent
dynamic range from 20 Hz to 20 kHz.
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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008–2010, Texas Instruments Incorporated

TAS5701
TAS5701
SLOS559A – JUNE 2008 – REVISED AUGUST 2010
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
SIMPLIFIED APPLICATION DIAGRAM
3.3 V
12 V
0 V–21 V
DVDD
GVDD
PVDD
Digital
Audio
Source
Control
Inputs
LRCLK
SCLK
MCLK_IN
SDIN1
SDIN2
GAINx (2 pins)
FORMATx (3 pins)
MUTE
RESET
PDN
OUT_A
BSA
BSB
OUT_B
OUT_C
BSC
BSD
OUT_D
Left
Right
12 V
TAS5132
0 V–21 V
Loop
Filter
PLL_FLTP
PLL_FLTM
SUB_PWM+
SUB_PWM–
BKND_ERR
VALID
SIN+
SIN–
FAULT
RESET
SOUT+
SOUT–
Subwoofer
B0264-08
2 Submit Documentation Feedback
Product Folder Link(s): TAS5701
Copyright © 2008–2010, Texas Instruments Incorporated


Features TAS5701 www.ti.com SLOS559A – JUNE 2 008 – REVISED AUGUST 2010 20-W STEREO DIGITAL AUDIO POWER AMPLIFIER Check fo r Samples: TAS5701 FEATURES 1 • Audi o Input/Output – 20-W Into an 8-Ω L oad From an 18-V Supply – Wide PVDD R ange (0 V to 21 V) – Efficient Class- D Operation Eliminates Need for Heat Si nks – Two Serial Audio Inputs (3 Audi o channels) – Supports 32-kHz to 192- kHz Sample Rates (LJ/RJ/I2S) – Line-L evel Subwoofer PWM Outputs • Audio/PW M Processing – BD (Filter-free) Modul ation Supporting Bridge-Tied Loads ONLY – 4-Step Volume Control (0 dB, 6 dB, 12 dB, 18 dB) – All Channels Share S ame Control – Soft Mute (50% Duty Cyc le) – DC Blocking Filters – Fixed M aximum Modulation Limit At 97.7% – 100-dB SNR – Measured at Maximum Out put With THD+N = 1%, 1 kHz, A-Weighted Noise, Gain = 0 dB – THD < 0.1% at 1/ 2 Rated Power • General Features – 5-V Tolerant Inputs (See pin list for details on which inputs are 5-V tolerant) – Shutdown Mode for Low Power Consumption – Thermal and Short-Circu.
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