鈥?/div>
Digital Interface
鈥?24-bit Resolution
鈥?Supports I
2
S and 16-Bit Word
Right-Justified Digital Input Formats
鈥?Multiple Sampling Frequencies:
5 kHz 鈥?200 kHz
鈥?8x Oversampling Digital Filter
鈥?Soft Mute
Power Amplifier
鈥?20-W into an 8-鈩?Load from an 18-V Supply
鈥?Efficient Operation Eliminates Need for Heat
Sinks
鈥?Three Selectable, Fixed Gain Settings
鈥?Thermal and Short-Circuit Protection
DESCRIPTION
The TPA3200D1 is a 20-W (per channel) efficient,
digital audio power amplifier for driving a bridged-tied
speaker. The TPA3200D1 can drive a speaker with
an impedance as low as 4
鈩?
The high efficiency of
the TPA3200D1 (85%) eliminates the need for an
external heat sink.
The digital input accepts 16-24 bit data in I
2
S format
or 16-bit word right-justified. A digital filter performs
an 8x interpolation function. Other features include
soft mute, a zero input detect output flag for power
conscious designs, and power saving shutdown
mode.
鈥?/div>
Simplified Application Circuit
TAS3103
I
2
S or 16-bit RJ
22 nF
DATA
SCLK
FLT1
FLT2
VCOM
VREF
LRCK
BYPASS
Control
Inputs
1
mF
220 pF
COSC
MUTE
DEMP
GAIN0
GAIN1
SHUTDOWN
LR_SEL
ZERO
VCLAMP
+5V
+18V
VDD
PVCC
AVCC
DGND
PGND
1.0
mF
ROSC
120 kW
10
mF
1
mF
Digital Audio
Processor
BCK
{
{
FORMAT
TPA3200D1
AGND
0.22
mF
BSN
51
W
OUTN
OUTP
51
W
BSP
0.22
mF
Gain Select
Shutdown Control
Channel Select
Zero Input Flag
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.
PRODUCT PREVIEW information concerns products in the forma-
tive or design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the
right to change or discontinue these products without notice.
Copyright 漏 2005, Texas Instruments Incorporated
PRODUCT PREVIEW
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