TAS5760LD_15 Datasheet, PDF (1/68 Pages) Texas Instruments – TAS5760LD General-Purpose I2S Input Class-D Amplifier With DirectPath™ Headphone and Line Driver

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TAS5760LD
SLOS781A – JULY 2013 – REVISED JULY 2015
TAS5760LD General-Purpose I2S Input Class-D Amplifier With DirectPath™ Headphone
and Line Driver
1 Features
•1 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
– Overtemperature and Programmable
Overcurrent Protection
• Audio Performance (PVDD = 12 V, R_SPK = 8 Ω,
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%)
2 Applications
• LCD/LED TV and Multipurpose Monitors
• Sound Bars, Docking Stations, PC Audio
• General-Purpose Audio Equipment
3 Description
The TAS5760LD is a stereo I2S input device which
includes hardware and software (I²C) control modes,
integrated digital clipper, several gain options, and a
wide power supply operating range to enable use in a
multitude of applications. The TAS5760LD operates
with a nominal supply voltage from 4.5 to 15 VDC.
The device has an integrated DirectPath™
headphone amplifier and line driver to increase
system level integration and reduce total solution
costs.
An optimal mix of thermal performance and device
cost is provided in the 120-mΩ R_DS(ON) of the output
MOSFETs. Additionally, a thermally enhanced 48-Pin
TSSOP provides excellent operation in the elevated
ambient temperatures found in modern consumer
electronic devices.
The entire TAS5760xx family is pin-to-pin compatible
in the 48-Pin TSSOP package. Alternatively, to
achieve the smallest possible solutions size for
applications where pin-to-pin compatibility and a
headphone or line driver are not required, a 32-Pin
TSSOP package is offered for the TAS5760M and
TAS5760L devices. The I²C register map in all of the
TAS5760xx devices are identical, to ensure low
development overhead when choosing between
devices based upon system-level requirements.
Device Information⁽¹⁾
PART NUMBER PACKAGE
BODY SIZE (NOM)
TAS5760LD
HTSSOP (48) 12.50 mm × 6.10 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Functional Block Diagram
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
Digital
Clipper
Internal Reference
Regulators
Internal Gate
Drive Regulator
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
Output Power 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
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.