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Product Detailed Parameters
- Description：IC AMP D DUAL/QUAD 20.6W 64HTQFP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Type：Class D
- Output Type：2-Channel (Stereo) or 4-Channel (Quad)
- Max Output Power x Channels @ Load：20.6W x 2 @ 8Ohm
- Voltage - Supply：10V ~ 26V
- Features：Depop, Digital Inputs, I2C, I2S, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
- Mounting Type：Surface Mount
- Supplier Device Package：64-HTQFP (10x10)
- Package / Case：64-TQFP Exposed Pad
- Operating Temperature：0°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The TAS5706BPAPR is a digital-input stereo Class D audio power amplifier manufactured by Texas Instruments. It delivers an output power of 20.6 W into an 8-ohm load with a total harmonic distortion plus noise of 0.05%. The device operates within a temperature range of 0°C to +85°C and utilizes a 64-pin HTQFP package. It features dual power supply requirements and single-channel input configuration, drawing a typical operating current of 65 mA.
Feature Summary
- Employs closed-loop feedback architecture for enhanced speaker control and improved sound quality
- Provides high power supply rejection ratio (PSRR) enabling direct operation from LCD TV backlight supplies
- Offers superior electromagnetic compatibility (EMC) performance compared to open-loop designs
Applications
- LCD televisions
- Digital audio systems requiring closed-loop feedback
- Backlight-supply-powered audio applications
Procurement Notes
Verify the specific suffix 'B' against the official datasheet to confirm if it denotes a distinct electrical specification or packaging variant compared to the standard TAS5706A. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Ensure the component matches the required 64-pin HTQFP footprint and thermal characteristics for the target design.
Selection Notes
Select this component when closed-loop feedback is required for precise speaker control and high PSRR. It is suitable for designs powered directly from unstable sources like LCD backlights. Compare THD+N and output power metrics against open-loop alternatives to validate performance needs. Ensure the 64-pin HTQFP package fits the board layout constraints.
Part Context
This part belongs to the TAS5706 family of digital-input Class D amplifiers. It shares the core closed-loop technology with variants like the TAS5706APAPR. The family targets high-fidelity audio applications where power supply noise immunity and EMC are critical design factors.
Replacement Considerations
The TAS5706APAPR is a verified substitute within the same family. Verify pinout compatibility and ensure the alternative meets the 20.6 W output requirement at 8 ohms.
