PCM2706PJTR

Audio Special Purpose Overview

The PCM2706PJTR is a stereo audio digital-to-analog converter (DAC) manufactured by Texas Instruments. It integrates a USB interface controller, enabling direct connection to host computers without external clocking circuitry. The device features two DAC channels with a resolution of 16 bits and supports sampling rates up to 48 kHz. It utilizes a Delta-Sigma architecture and operates on a single analog and digital power supply ranging from 3 V to 5.25 V. The component is housed in a 32-pin TQFP package designed for surface-mount technology.

Audio Special Purpose Feature Summary

• Integrated USB 2.0 full-speed interface controller eliminates the need for separate USB transceivers.
• Dual-channel 16-bit stereo DAC output with bipolar voltage capability.
• Supports I2S and standard USB audio protocols for flexible digital input.
• Operates within a wide supply voltage range of 3 V to 5.25 V.

Audio Special Purpose Applications

• USB-connected audio peripherals such as external sound cards.
• Portable multimedia devices requiring low-power audio conversion.
• Desktop computer audio subsystems and docking stations.

Audio Special Purpose Procurement Notes

Verify the suffix PJTR indicates the tape-and-reel packaging variant distinct from the tray-packaged PJT version. Confirm RoHS compliance status through the manufacturer's official documentation prior to integration. Ensure design compatibility with the 32-pin TQFP footprint and thermal requirements specified in the datasheet.

Audio Special Purpose Selection Notes

Select this component when a built-in USB interface is required to simplify system architecture. Compare against the PCM2704C for smaller SSOP packages or higher sample rate needs if applicable. Verify that the 48 kHz maximum sampling rate meets the specific audio fidelity requirements of the target application.

Audio Special Purpose Part Context

This part belongs to the PCM270x family of audio DACs from Texas Instruments. It serves as a complete solution for converting digital audio data received via USB into analog signals. The device simplifies design by combining the DAC, USB interface, and clock recovery circuits into a single integrated circuit.

Audio Special Purpose Replacement Considerations

The PCM2706PJT is the tray-packaged equivalent of the PCM2706PJTR. For alternative interfaces, consider the PCM2704C series which offers similar DAC performance but requires an external USB transceiver.