Texas Instruments TPA3200D1 User Manual
W mono digital input audio amplifier, Features description
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FEATURES
DESCRIPTION
LRCK
1.0 mF
Control
Inputs
DGND
Gain Select
+5V
Channel Select
{
BCK
GAIN0
VCOM
DATA
FORMAT
SCLK
GAIN1
LR_SEL
VDD
SHUTDOWN
VCLAMP
PGND
Shutdown Control
+18V
MUTE
DEMP
ZERO
AVCC
10 mF
{
Zero Input Flag
FLT1
FLT2
22 nF
COSC
AGND
ROSC
VREF
BYPASS
220 pF
1 mF
1 mF
120 kW
0.22 mF
BSN
51 W
OUTN
0.22 mF
BSP
OUTP
51 W
PVCC
Digital Audio
Processor
TPA3200D1
I
2
S or 16-bit RJ
TAS3103
TPA3200D1
SLOS442A – MAY 2005 – REVISED JULY 2005
20-W MONO DIGITAL INPUT AUDIO AMPLIFIER
•
Digital Interface
The TPA3200D1 is a 20-W (per channel) efficient,
digital audio power amplifier for driving a bridged-tied
– 24-bit Resolution
speaker. The TPA3200D1 can drive a speaker with
– Supports I
2
S and 16-Bit Word
an impedance as low as 4
Ω
. The high efficiency of
Right-Justified Digital Input Formats
the TPA3200D1 (85%) eliminates the need for an
– Multiple Sampling Frequencies:
external heat sink.
5 kHz – 200 kHz
The digital input accepts 16-24 bit data in I
2
S format
– 8x Oversampling Digital Filter
or 16-bit word right-justified. A digital filter performs
– Soft Mute
an 8x interpolation function. Other features include
soft mute, a zero input detect output flag for power
•
Power Amplifier
conscious designs, and power saving shutdown
– 20-W into an 8-
Ω
Load from an 18-V Supply
mode.
– Efficient Operation Eliminates Need for Heat
Sinks
– Three Selectable, Fixed Gain Settings
– Thermal and Short-Circuit Protection
Simplified Application Circuit
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.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2005, 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.
Document Outline
- FEATURES
- DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- DISSIPATION RATINGS
- RECOMMENDED OPERATING CONDITIONS
- ELECTRICAL CHARACTERISTICS
- FORMAT CHARACTERISTICS
- ELECTRICAL CHARACTERISTICS
- OPERATING CHARACTERISTICS
- TYPICAL CHARACTERISTICS
- APPLICATION INFORMATION
- SYSTEM CLOCK INPUT
- AUDIO SERIAL INTERFACE
- ZERO FLAG
- REGISTER CONTROL
- OVERSAMPLING RATE CONTROL
- VCOM OUTPUT
- CLASS-D OPERATION
- SHORT-CIRCUIT PROTECTION
- THERMAL PROTECTION
- THERMAL CONSIDERATIONS: OUTPUT POWER AND MAXIMUM AMBIENT TEMPERATURE
- GAIN SETTING VIA GAIN0 AND GAIN1 INPUTS
- POWER SUPPLY DECOUPLING
- BSN AND BSP CAPACITORS
- BSN AND BSP RESISTORS
- VCLAMP CAPACITOR
- MIDRAIL BYPASS CAPACITOR
- VREF DECOUPLING CAPACITOR
- SWITCHING FREQUENCY
- SHUTDOWN OPERATION
- USING LOW-ESR CAPACITORS
- PRINTED-CIRCUIT BOARD (PCB) LAYOUT