Overview
The TAS5261DKDG4, produced by Texas Instruments, is a high-performance, integrated mono digital amplifier power stage. This component is designed to drive 4-Ω to 8-Ω speakers with low harmonic distortion, requiring only a simple, passive demodulation filter to deliver high-quality, high-efficiency audio amplification. It supports Pulse-Width Modulation (PWM) frame rates of 192 kHz to 384 kHz and features comprehensive protection circuitry, including under-voltage protection, over-temperature warning and error, over-load protection, and short-circuit protection. The TAS5261 also includes a power-on reset (POR) circuit to eliminate the need for power-supply sequencing, which is typically required for most H-bridge designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Total Output Power | 125 W into 8 Ω at 10% THD+N | W |
| Total Output Power | 220 W into 6 Ω at 10% THD+N | W |
| Total Output Power | 315 W into 4 Ω at 10% THD+N | W |
| Signal-to-Noise Ratio (SNR) | 110 dB (A-Weighted with TAS5518 modulator) | dB |
| PWM Frame Rates | 192 kHz to 384 kHz | kHz |
| Resistor-Programmable Current Limit | Yes | |
| Operating Temperature Range | 0°C to 70°C | °C |
| Package Type | 36-pin PSOP3 (Thermally-Enhanced Package DKD) | |
| EMI Compliance | Yes, when used with recommended system design | |
| Error Reporting | 3.3-V and 5-V Compliant |
Key Features
- Integrated self-protection circuit including under-voltage protection, over-temperature warning and error, over-load protection, and short-circuit protection.
- PWM activity detector to monitor the loss of PWM input signal.
- Power-on reset (POR) circuit to eliminate system power-supply sequencing.
- Resistor-programmable current limit for customizable current protection.
- Thermally-enhanced package (36-pin PSOP3) for improved heat dissipation.
- EMI compliant when used with recommended system design.
- Error reporting compliant with 3.3-V and 5-V logic levels.
Applications
- AV Receivers
- DVD Receivers
- Mini/Micro Component Systems
- Home Theater Systems
Q & A
- What is the maximum output power of the TAS5261DKDG4?
The TAS5261DKDG4 can deliver up to 315 W into a 4-Ω load at 10% THD+N.
- What are the supported PWM frame rates for the TAS5261DKDG4?
The TAS5261DKDG4 supports PWM frame rates from 192 kHz to 384 kHz.
- What types of protection are integrated into the TAS5261DKDG4?
The TAS5261DKDG4 includes under-voltage protection, over-temperature warning and error, over-load protection, and short-circuit protection.
- Does the TAS5261DKDG4 require a power-on reset (POR) circuit?
No, the TAS5261DKDG4 has a built-in POR circuit to eliminate the need for power-supply sequencing.
- What is the operating temperature range of the TAS5261DKDG4?
The operating temperature range is from 0°C to 70°C.
- Is the TAS5261DKDG4 EMI compliant?
Yes, it is EMI compliant when used with the recommended system design.
- What package type is used for the TAS5261DKDG4?
The TAS5261DKDG4 uses a 36-pin PSOP3 (Thermally-Enhanced Package DKD).
- Can the current limit be programmed on the TAS5261DKDG4?
Yes, the current limit can be programmed using a resistor.
- What are some common applications for the TAS5261DKDG4?
Common applications include AV receivers, DVD receivers, mini/micro component systems, and home theater systems.
- Is the error reporting of the TAS5261DKDG4 compatible with different logic levels?
Yes, the error reporting is compliant with both 3.3-V and 5-V logic levels.
