TAS5729MD Datasheet, PDF (1/58 Pages) Texas Instruments – 12W I²S Input Class-D Amplifier with Digital Audio Processor and DirectPath™ HP / Line Driver

DCA-48 (TSSOP)
12.5mm ´ 8.1mm
TAS5729MD
www.ti.com
SLOS836A – MAY 2013 – REVISED JUNE 2013
12W I²S Input Class-D Amplifier with Digital Audio Processor
and DirectPath™ HP / Line Driver
Check for Samples: TAS5729MD
FEATURES
1
•23 Audio I/O Configuration:
– Single Stereo I²S Input
– Stereo BTL or Mono PBTL Operation
– 8 to 48 kHz Sample Rates
– Headphone Amplifier / Line Driver
• Audio Digital Signal Processing:
– Digital Equalization
– Two-band Automatic Gain Limiting
– Coarse and Fine Volume Control
– PWM Level Meter
• General Operational Features:
– I²C Software Control with Programmable I²C
Address (1010100[^R/_W] or 1010101[^R/_W])
– AD, BD, Ternary Modulation
– Overtemp, Undervoltage, Clock, and
Overcurrent Protection
• Audio Performance (PVDD = 18 V, R_LOAD = 8 Ω)
– Idle Channel Noise = 56 µVrms
– THD+N at 1 W, 1 kHz, = 0.15 %
– SNR = 105 dB (ref. to 0dBFS)
APPLICATIONS
• LCD/LED TV and Multi-Purpose Monitors
• Sound Bars, Docking Stations, PC Audio
• Consumer Audio Equipment
Power at 10% THD+N vs PVDD
15
BTL
T_A = 25°C
10
5
RL = 8Ÿ THD+N = 1%
RL = 8Ÿ THD+N = 10%
0
8
10 12 14 16 18 20 22 24
Supply Voltage (V)
C001
NOTE: Dashed lines represent thermally limited
region.
DVDD AVDD ANA_REG1 ANA_REG2 DIG_REG DRVDD DR_CN DR_CP DRVSS
PVDD
GVDD_REG
MCLK
SCLK
LRCLK
SDIN
DR_INA
DR_INB
Analog Supply
Regulators
Digital Supply Regulator
Serial
Audio
Port
Digital Audio Processor
Digital Equalizer, Two-Band
AGL, Coarse/Fine Volume
Control, THD Manager, PWM
Level Meter
Stereo HP / Line Driver
DR_INx
DRVDD
DR_OUTx
DRVSS
Charge Pump
Open Loop
Digital PWM
Modulator
Clock
Monitoring
Gate Drive
Regulator
PWM Power Stage
Gate
Drives
Full Bridge
Power
Stage A
Gate
Drives
Full Bridge
Power
Stage B
Over-
Current
Protection
Die Temp. Monitor
Internal Control Registers and State Machines
SPK_OUTA
SPK_OUTB
SPK_OUTC
SPK_OUTD
DR_OUTA
DR_OUTB
ADR / SPK_FAULT
DR_SDI PDN RST ^{SCL SDA}
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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.
DirectPath is a trademark of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
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 © 2013, Texas Instruments Incorporated