Overview
The TDA7498 is a dual BTL (Bridge-Tied Load) class-D audio amplifier designed by STMicroelectronics. It is intended for use in home audio systems and active speaker applications. The amplifier operates with a single power supply, offering high energy efficiency while delivering high-quality audio performance. It is housed in a 36-pin PowerSSO package with an exposed pad up (EPU) to facilitate the mounting of a separate heatsink for effective thermal management.
Key Specifications
| Specification | Value |
|---|---|
| Supply Voltage | 14V ~ 39V |
| Max Output Power x Channels @ Load | 100W x 2 @ 6Ω, 80W x 2 @ 8Ω |
| Frequency Response | 10Hz ~ 100kHz (-3dB) |
| Efficiency | > 90% |
| Gain | Four selectable, fixed gain settings: 25.6 dB, 31.6 dB, 35.1 dB, and 37.6 dB |
| Standby Current | 3µA |
| Operating Temperature | -40°C ~ 85°C |
| Package Type | PowerSSO-36 EPU |
| Input Voltage Range | 0.2V ~ 2V (RMS) |
| Output Impedance | 4Ω ~ 8Ω |
| Output Voltage Swing | 45Vpp |
Key Features
- High output power: 100W + 100W at THD = 10% with RL = 6Ω and VCC = 36V, and 80W + 80W at THD = 10% with RL = 8Ω and VCC = 34V.
- Wide-range single-supply operation (14 - 39 V).
- High efficiency (η = 90%).
- Differential inputs to minimize common-mode noise.
- Standby and mute features.
- Short-circuit protection and thermal overload protection.
- Externally synchronizable.
Applications
- Home Audio and Hi-Fi Systems.
- Active Speakers.
- Portable and Battery-Powered Audio Systems.
- Television and AV Receivers.
- Automotive Audio Systems.
- Public Address (PA) Systems.
- DIY and Custom Audio Projects.
Q & A
- What is the TDA7498?
The TDA7498 is a dual BTL (Bridge-Tied Load) class-D audio amplifier designed by STMicroelectronics for home audio systems and active speaker applications.
- Can I use the TDA7498 in a stereo system?
- How should the TDA7498 be mounted for optimal performance?
- What is the operating voltage range of the TDA7498?
- What are the gain settings available on the TDA7498?
- Does the TDA7498 have built-in protection features?
- What is the efficiency of the TDA7498?
- What is the frequency response of the TDA7498?
- Can the TDA7498 be externally synchronized?
- What is the package type of the TDA7498?
