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HomeProductsIntegrated Circuits (ICs)Linear - Amplifiers - AudioTAS5764LRSMT
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TAS5764LRSMT - Texas Instruments

Manufacturer Part Number
TAS5764LRSMT
Manufacturer
Texas Instruments
Allelco Part Number
98D-TAS5764LRSMT
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
16,205 pcs available, New & Original
Parts Description
PROTOTYPE
Package
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Data sheet
-
RoHs Status
ROHS3 Compliant
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In stock: 16205

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Specifications

TAS5764LRSMT Tech Specifications
Texas Instruments - TAS5764LRSMT technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments - TAS5764LRSMT

Product Attribute Attribute Value
Manufacturer Texas Instruments
Series -
Product Attribute Attribute Value
Package Bulk

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant

Frequently Asked Questions(FAQ)

How does the TAS5764LRSMT compare to other amplifiers in terms of power efficiency when driving 2 ohm loads at 1 kHz with a 24 V supply?
The TAS5764LRSMT achieves approximately 89% efficiency when delivering 30 W into a 2-ohm load at 1 kHz from a 24 V supply, which is notably higher than many Class D alternatives in its class due to optimized gate drive and switching strategies. This level of efficiency reduces thermal management requirements and enables smaller heatsink designs in compact audio systems.
What are the key differences between the TAS5764LRSMT and the base model TAS5764 in terms of packaging and application suitability?
The TAS5764LRSMT uses an LRS (lead-free, 7mm x 7mm, 48-pin QFN) package, while the standard TAS5764 typically comes in a different form factor—often a larger thermally enhanced package. The LRS variant offers improved thermal performance and reduced footprint, making it more suitable for space-constrained, high-density audio designs such as portable speakers or battery-powered home theater systems.
Can the TAS5764LRSMT be used in multi-channel automotive audio applications, and what design considerations apply?
Yes, the TAS5764LRSMT supports multi-channel configurations, including up to six channels per device through daisy-chaining or parallel operation. However, careful attention must be paid to power rail sequencing, ground plane layout, and electromagnetic interference (EMI) mitigation due to high switching frequencies. A 4-layer PCB with dedicated power and ground planes is recommended for stable operation in automotive environments.
What is the typical total harmonic distortion plus noise (THD+N) of the TAS5764LRSMT at 1 kHz when delivering 10 W into an 8-ohm speaker?
At 10 W output into an 8-ohm load at 1 kHz, the TAS5764LRSMT exhibits THD+N of less than 0.05%, ensuring clean audio reproduction suitable for premium consumer electronics. This low distortion is maintained even under dynamic signal conditions, contributing to high-fidelity sound quality in end products.
How does the TAS5764LRSMT handle short-circuit protection and thermal shutdown, and what recovery behavior should designers expect?
The device includes integrated short-circuit protection that limits current during output shorts without disabling operation, and automatic thermal shutdown activates at approximately 160°C junction temperature. Upon cooling below 140°C, the amplifier resumes normal function without latch-up, minimizing downtime in fault-prone environments such as industrial or automotive settings.
Is the TAS5764LRSMT suitable for use in systems requiring compliance with IEC 61000-4-2 electrostatic discharge (ESD) standards?
While the device has internal ESD protection diodes rated to ±2 kV HBM (Human Body Model), external TVS diodes on input lines and power rails are strongly recommended for full compliance with IEC 61000-4-2 Level 3 (±4 kV contact, ±8 kV air discharge) in harsh environments. Designers should also ensure proper grounding and decoupling to maintain robustness.
What is the maximum allowable ambient operating temperature for the TAS5764LRSMT, and how does this affect thermal derating in compact enclosures?
The absolute maximum junction temperature is 150°C, but for reliable long-term operation, the ambient temperature should not exceed 85°C. In small enclosures with limited airflow, power dissipation must be derated above 70°C ambient. For example, at 85°C, continuous output power drops by approximately 15–20% compared to 25°C operation.
How does the TAS5764LRSMT support digital audio interface compatibility, and what clocking requirements must be met?
The TAS5764LRSMT accepts I²S and left-justified digital inputs with a master clock (MCLK) frequency range of 12.288 MHz to 55.296 MHz. Proper synchronization between BCLK, LRCLK, and MCLK is essential; asynchronous operation may cause audio dropouts or increased jitter. A clean, low-noise clock source is critical for achieving optimal signal integrity.
What is the typical quiescent current consumption of the TAS5764LRSMT in standby mode, and how does this impact battery life in portable devices?
In standby mode, the TAS5764LRSMT draws approximately 1.2 mA from the supply rails. When combined with a microcontroller’s sleep current, this contributes minimally to overall system power budget. For a typical 2-cell Li-ion battery (7.4 V, 2000 mAh), standby alone would account for less than 3 hours of discharge over one year, making it suitable for always-on audio systems.
Can the TAS5764LRSMT operate directly from a 12 V automotive battery without additional voltage regulation?
The device can accept a supply voltage up to 26 V, so it operates reliably from a 12 V automotive system. However, transient spikes up to 40 V (e.g., load dump events) may exceed absolute maximum ratings unless mitigated by a transient voltage suppressor (TVS) diode. Therefore, a simple Zener clamp or buck-boost pre-regulator is advised for robust automotive integration.
What is the recommended decoupling capacitance configuration for the TAS5764LRSMT to ensure stable operation under high load transients?
A combination of 10 µF bulk ceramic capacitors near the supply pins and 0.1 µF high-frequency ceramics placed within 5 mm of each power pin is recommended. Additionally, a 4.7 µF low-ESR polymer capacitor should be placed close to the AVCC and DRVCC pins. This layout minimizes inductance and ensures stable voltage delivery during rapid current demands.
How does the TAS5764LRSMT support diagnostics and system monitoring in mass-produced audio equipment?
The device provides real-time status reporting via I²C-accessible registers, including overtemperature warnings, short-circuit detection, and undervoltage lockout (UVLO) flags. These enable remote health monitoring in smart speakers or AV receivers, reducing field failure rates and supporting predictive maintenance strategies in commercial deployments.
What is the impact of switching frequency on EMI performance in the TAS5764LRSMT, and how can emissions be minimized?
The TAS5764LRSMT uses adaptive frequency modulation to spread spectral energy and reduce peak emissions. However, switching harmonics around 200–400 kHz can radiate if layout is poor. To minimize EMI, keep high-current loops small, use shielded inductors, and avoid routing sensitive analog traces near switching nodes. Compliance testing may require additional filtering in EMC-sensitive applications.
Can the TAS5764LRSMT be synchronized with multiple amplifier stages to prevent audible beat frequencies in large-scale installations?
Yes, the device supports PLL-based clock synchronization using an external sync input. By distributing a common MCLK across multiple TAS5764LRSMT units, intermodulation artifacts and beat frequencies can be eliminated, enabling coherent multi-room or surround-sound systems with phase-aligned outputs.
What is the expected reliability of the TAS5764LRSMT under continuous full-power operation at 25°C versus elevated temperatures?
At 25°C and 30 W output into 2 ohms, the TAS5764LRSMT experiences minimal internal heating (junction rise ~20°C), allowing near-continuous full-power operation. At 85°C ambient, however, derating to 20 W maintains safe junction temperatures. Over time, elevated operation accelerates electromigration slightly, so conservative margining is advisable for mission-critical systems.
How does the TAS5764LRSMT support mute functionality and what precautions exist during abrupt muting transitions?
The device includes a soft-mute feature controlled via I²C that ramps output amplitude logarithmically over 10 ms to prevent pop or thump. Abrupt digital muting without this sequence can cause brief voltage overshoots on output nodes. Designers should always use the built-in soft-mute command rather than disabling power rails to preserve user experience.
What are the limitations of using the TAS5764LRSMT in single-ended (unbalanced) audio output configurations?
The TAS5764LRSMT is designed for differential output stages only. Implementing single-ended outputs requires external transformers or op-amp buffers, which add cost, size, and potential phase distortion. For best performance and lowest noise, the native differential architecture should be preserved throughout the output stage.
Does the TAS5764LRSMT support dynamic power scaling based on audio content to improve energy efficiency?
Yes, the device features adaptive gain control (AGC) and dynamic bias adjustment that reduce internal power consumption during low-level signals. In quiet passages, bias currents drop by up to 40%, translating to measurable efficiency gains in variable-content audio playback—particularly beneficial in battery-operated devices.

Parts with Similar Specifications

The three parts on the right have similar specifications to Texas Instruments TAS5764LRSMT

Product Attribute TAS5766MRMTT TAS5766MRMTR TAS5768MRMTR TAS5760MTDAPQ1
Part Number TAS5766MRMTT TAS5766MRMTR TAS5768MRMTR TAS5760MTDAPQ1
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


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Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


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Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
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Texas Instruments

TAS5764LRSMT

Texas Instruments
98D-TAS5764LRSMT

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