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Product Detailed Parameters
- Description：IC AMP CLSS D STER 20.6W 48HTQFP
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Class D
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：20.6W x 2 @ 8Ohm
- Voltage - Supply：8V ~ 24V
- Features：Depop, Digital Inputs, I2C, I2S, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
- Mounting Type：Surface Mount
- Supplier Device Package：48-HTQFP (7x7)
- Package / Case：48-PowerTQFP
- Operating Temperature：0°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The TAS5709APHPR is a Class-D digital audio power amplifier manufactured by Texas Instruments, housed in a 48-pin HTQFP package. It delivers 20.6 W of stereo output power into an 8-ohm load with a total harmonic distortion plus noise of 0.06%. The device operates on a supply voltage ranging from 8 V to 24 V and supports I2S digital inputs. It functions within a temperature range of 0°C to +85°C.
Feature Summary
- Integrates a fully programmable data path for routing two independent audio channels to internal drivers.
- Utilizes over-sampling combined with a fourth-order noise shaper for flat noise floor and wide dynamic range.
- Operates as a slave device receiving external clocks with PWM carrier frequencies between 352 kHz and 384 kHz.
Applications
- Driving stereo bridged speakers
- Integration with digital audio processors
- Connection to MPEG decoders
Procurement Notes
Verify the specific suffix 'A' confirms the unique I2C device address of 0x3A, distinct from the standard TAS5709 address of 0x36. Confirm the 'PHPR' suffix indicates the HTQFP-48 package and reel packaging format. Ensure compatibility with the required 8V to 24V supply rails and I2S interface protocols before finalizing procurement.
Selection Notes
Select this component when a high-efficiency Class-D amplifier is required for stereo applications. It is suitable for systems needing direct digital input via I2S without external DACs. The choice depends on the need for a 20W output capability at 8 ohms and the availability of a 48-pin HTQFP footprint in the design.
Part Context
This part belongs to the TAS5709A series, which shares functional characteristics with the TAS5709 but features a distinct I2C address. It is designed for efficient digital audio amplification, supporting various input data rates and integrating seamlessly with common digital audio processing architectures.
Replacement Considerations
TAS5709APHR serves as a similar alternative within the same family. Verify that the substitute maintains the required 0x3A I2C address if system addressing constraints are strict. Ensure the replacement matches the HTQFP-48 package dimensions and thermal requirements.
