TI's TAS5404-Q1 is a four-channel Class-D audio amplifier for car audio consoles, four analog inputs, and four BTL outputs. Each channel can continuously provide 26W output or 4 to a 4-ohm load from a 14.4V power supply. Ohmic load continuously provides 45W output, THD+N is less than 1%, 75dB PSRR. Each gain is 12 dB, 20 dB, 26 dB, 32 dB. This article describes the main features of the TAS5404-Q1, the block diagram, and the main application circuit and its materials. List, Automotive Quad Class D Amplifier Reference Design TIDA-00573 Main Features, Block Diagrams, Circuit Diagrams, Bill of Materials and Car Audio Host Diagrams and Key Indicators.
The TAS5404-Q1 device is a four-channel class-D audio amplifier designed for use in automoTIve head units. The TAS5404-Q1 device provides four channels at 20 W conTInuously into 4 Ω at less than 1% THD+N from a 14.4- The patented PWM topology of the device provides dramatic improvements in efficiency and audio performance over traditional linear amplifier solutions. The improvement in efficiency and audio performance improve the Vdc supply when using the application circuit. The input is configured as an analog single-ended interface. The power dissipated by the amplifier by a factor of ten under typical music playback conditions. The built-in load diagnostic functions for detecting and diagnosing disconnected speakers help reduce test time during the manufacturing. Process.
TAS5404-Q1 main features:
TAS5404-Q1 – Single-Ended Input
Four-Channel Class-D Power Amplifier
Four Analog Inputs, Four BTL Power Outputs
Typical Output Power at 10% THD+N
26 W/ChInto 4 Ω at 14.4 V
45 W/ChInto 2 Ω at 14.4 V
Channels Can Be Paralleled (PBTL) for High- Current Applications
THD+N < 0.02%, 1 kHz, 1 W Into 4 Ω
Patented Pop-and-Click-Reduction Technology
Soft Muting With Gain Ramp Control
Common-Mode Ramping
Patented AM Interference Avoidance
Patented Cycle-by-Cycle Current Limit
75dB PSRR
Four-Address I2C Serial Interface for Device
Configuration and Control
Channel Gains: 12 dB, 20 dB, 26 dB, 32 dB
Load Diagnostic Functions:
Output Open and Shorted Load
Output-to-Power and Output-to-Ground Shorts
Patented Tweeter Detection
Protection and Monitoring Functions:
Short-Circuit Protection
Load-Dump Protection to 50 V
Fortuitous Open-Ground and Open-Power Tolerant
Patented Output DC Level Detection While Music Playing
Overtemperature Protection
Overvoltage and Undervoltage Conditions
Clip Detection
64-Pin QFP (PHD) Power Package With Heat Slug Up
Designed for Automotive EMC Requirements
Qualified According to AEC-Q100
ISO9000:2002 TS16949-Certified
–40°C to 105°C Ambient Temperature Range
Figure 1. TAS5404-Q1 Block Diagram
Figure 2. Typical Application Circuit of TAS5404-Q1 Figure 2 Material List of Typical Application Circuit of TAS5404-Q1:
Automotive Quad Class D Amplifier Reference Design TIDA-00573
The TIDA-00573 reference design provides a Class D based amplifier solution that allows it to be evaluated in the form factor of a typical Class AB amplifier. The design is optimized to mitigate thermals associated with audio amplifiers and to minimize switching noises associated with Class D Amplifiers. This design is comprised of two parts. The 1st highlights the audio amplifier module while the 2nd highlights the circuitry needed to incorporate it into a base board. The pair of boards allows stand-alone performance testing of the design.
Automotive Quad Class D Amplifier Reference Design TIDA-00573 Key Features:
Able to withstand load-dump conditions
Size/Space optimized design
CISPR-25 tested EMI
Able to withstand Start/Stop operation down to 5.6V
Figure 3. Automotive Quad D Amplifier Reference Design TIDA-00573 Outline Drawing
Figure 4. Block Diagram of Automotive Quad Class D Amplifier TIDA-00573
Figure 5. Mainframe diagram of car audio integrated with TIDA-00573 Main indicators of car audio system:
Figure 6. Subboard 3D outline
Figure 7. Outline of the motherboard 3D
Figure 8. Reference design TIDA-00573 circuit diagram (1)
Figure 9. Reference design TIDA-00573 circuit diagram (2)
Figure 10. Reference design TIDA-00573 circuit diagram (3)
Figure 11. Reference design TIDA-00573 circuit diagram (4)
Figure 12. Reference Design TIDA-00573 Circuit Diagram (5)
Figure 13. Reference design TIDA-00573 circuit diagram (6)
Reference Design TIDA-00573 Bill of Materials:
For details, please see:
with
Tas5404-q1.pdf
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