Texas Instruments TAS5733L Manual

TAS5733L - Digital Input Audio Power Amplifier with EQ and 3-Band AGL
1 Features
• Audio Input/Output
1
– One-Stereo Serial Audio Input
– Supports 44.1-kHz and 48-kHz Sample Rates
(LJ/RJ/I²S)
– Supports 3-Wire I²S Mode (no MCLK required)
– Automatic Audio Port Rate Detection
– Supports BTL and PBTL Configuration
– P = 10 W @ 10% THD+N
OUT
– PVDD = 12 V, 8 Ω, 1 kHz
• Audio/PWM Processing
– Independent Channel Volume Controls With
Gain of 24 dB to Mute in 0.125-dB Steps
– Programmable Three-Band Automatic Gain
Limiting (AGL)
– 20 Programmable Biquads for Speaker EQ
and Other Audio-Processing Features
• General Features
– 104-dB SNR, A-Weighted, Referenced to Full
Scale (0 dB)
– I²C Serial Control Interface w/ two Addresses
– Thermal, Short-Circuit, and Undervoltage
Protection
– Up to 90% Efficient
– AD, BD, and Ternary Modulation
– PWM Level Meter
Power vs PVDD
30
RL = 4
RL = 8
25
20
15
10
5
0
8 9 10
1
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.
Sample &
Product
Buy
Folder
11 12 13 14 15
PVDD (V)
Tools &
Technical
Software
Documents
SLASE77A – MARCH 2016 – REVISED MARCH 2016
2 Applications
• LCD TV, LED TV
• Low-Cost Audio Equipment
3 Description
The TAS5733L device is an efficient, digital-input
audio amplifier for driving stereo speakers configured
as a bridge tied load (BTL). In parallel bridge tied
load (PBTL) in can produce higher power by driving
the parallel outputs into a single lower impedance
load. One serial data input allows processing of up to
two discrete audio channels and seamless integration
to most digital
decoders. The device accepts a wide range of input
data and data rates. A fully programmable data path
routes these channels to the internal speaker drivers.
The TAS5733L device is a slave-only device
receiving all clocks from external sources. The
TAS5733L device operates with a PWM carrier
between a 384-kHz switching rate and a 288-kHz
switching rate, depending on the input sample rate.
Oversampling combined with a fourth-order noise
shaper provides a flat noise floor and excellent
dynamic range from 20 Hz to 20 kHz.
Device Information
PART NUMBER
TAS5733L
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Block Diagram
Power-On Reset
(POR)
MCLK Monitoring
and Watchdog
Serial Audio Port
MCLK
(SAP)
Digital Audio
LRCK
Sample Rate
Processor
Auto-Detect
SCLK (DAP)
SDIN PLL
Support &
Community
TAS5733L
audio processors and
(1)
PACKAGE BODY SIZE (NOM)
HTSSOP (48) 12.50 mm × 6.10 mm
DVDD AVDD PVDD
Internal Voltage Supplies
Internal Regulation and Power Distribution
Open Loop Stereo
Digital to PWM
Stereo PWM Amplifier
Converter
(DPC)
Sensing & Protection
Sample Rate
2 Ch. PWM
Temperature
Converter Modulator
Short Circuits
(SRC)
PVDD Voltage
Noise Shaping
Output Current
Click & Pop
Fault Notification
Suppression
Internal Register/State Machine Interface
I²C Control Port
SCL SDA PDN RST
DR_SD
MPEG
AMP_OUT_A
AMP_OUT_B
AMP_OUT_C
AMP_OUT_D