TAS5760LD Datasheet, PDF (1/54 Pages) Texas Instruments – General Purpose I2S Input Class D Amplifier with DirectPath™ Headphone / Line Driver

DCA-48 (TSSOP)
12.5mm ´ 8.1mm
TAS5760LD
www.ti.com
SLOS781 – JULY 2013
General Purpose I²S Input Class D Amplifier with DirectPath™ Headphone / Line Driver
Check for Samples: TAS5760LD
FEATURES
1
•23 Audio I/O Configuration:
– Single Stereo I²S Input
– Stereo Bridge Tied Load (BTL) or Mono
Parallel Bridge Tied Load (PBTL) Operation
– 32, 44.1, 48, 88.2, 96 kHz Sample Rates
– Headphone Amplifier / Line Driver
• General Operational Features:
– Selectable Hardware or Software Control
– Integrated Digital Output Clipper
– Programmable I²C Address (1101100[^R/W] or
1101101[^R/W])
– Closed Loop Amplifier Architecture
– Adjustable Switching Frequency for
Speaker Amplifier
• Robustness Features:
– Clock Error, DC and Short Circuit
Protection
– Over Temperature and Programmable
Overcurrent Protection
• Audio Performance (PVDD = 12V, R_SPK = 8Ω,
SPK_GAIN[1:0] Pins = 01)
– Idle Channel Noise = 65 µVrms (A-Wtd)
– THD+N = 0.09 % (at 1 W, 1 kHz)
– SNR = 100 dB A-Wtd (Ref. to THD+N = 1%)
APPLICATIONS
• LCD/LED TV and Multi-Purpose Monitors
• Sound Bars, Docking Stations, PC Audio
• General Purpose Audio Equipment
Power at 10% THD+N vs PVDD
40
R_L = 4 Ω
35
R_L = 6 Ω
R_L = 8 Ω
30
4 Ω Thermal Limit
6 Ω Thermal Limit
25
8 Ω Thermal Limit
THD+N = 10%
20
15
10
5
0
4
6
8
10
12
14
16
Supply Voltage (V)
G001
NOTE: Thermal Limits were determined via the
TAS5760xxEVM
DVDD
DRVDD
ANA_REG
AVDD PVDD
GVDD_REG
SFT_CLIP
MCLK
SCLK
LRCK
SDIN
Internal
Voltage
Supplies
DRVDD
Serial
Audio
Port
Digital
Boost
&
Volume
Control
Internal Reference
Regulators
Internal Gate
Drive Regulator
Digital
Clipper
Closed Loop Class D Amplifier
Digital to
PWM
Conversion
Analog
Gain
Soft
Clipper
Gate
Drives
Gate
Drives
Full Bridge
Power Stage
A
Full Bridge
Power Stage
B
Over-
Current
Protection
SPK_OUTA+
SPK_OUTA-
SPK_OUTB+
SPK_OUTB-
DR_INA+
DR_INA-
DR_INB+
DR_INB-
Clock Monitoring
DirectPath^TM Ground
Centered Headphone /
Line Driver
DRVDD
Charge Pump
Die
Temp. Monitor
Internal Control Registers and State Machines
DR_OUTA DR_OUTB DRVSS DR_CP DR_CN _PBTL/ SPK_GAIN0 SPK_GAIN1 _{SPK_SD SPK_FAULT} SPK_SLEEP/ FREQ/
SCL
ADR
SDA
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.
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