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PCM1781 from TI/BB,Texas Instruments

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PCM1781

Manufacturer: TI/BB, BB

24-Bit, 192-kHz Sampling, Enhanced Multilevel, Delta-Sigma, Audio Digital-to-Analog Converter

Partnumber Manufacturer Quantity Availability
PCM1781 TI/BB, BB 318 In Stock

Description and Introduction

24-Bit, 192-kHz Sampling, Enhanced Multilevel, Delta-Sigma, Audio Digital-to-Analog Converter The **PCM1781** is a high-performance, 24-bit digital-to-analog converter (DAC) designed for precision audio applications. This integrated circuit (IC) supports sampling rates up to **192 kHz**, delivering exceptional sound quality with low distortion and high signal-to-noise ratio (SNR). Its advanced architecture ensures accurate conversion of digital audio signals into analog outputs, making it suitable for professional audio equipment, home theater systems, and high-end consumer electronics.  

Featuring a **multi-bit delta-sigma modulation** technique, the PCM1781 minimizes quantization noise while maintaining linearity across the audio spectrum. It operates on a **single 5V supply**, simplifying system integration, and includes features such as **soft mute, zero detection, and de-emphasis** for enhanced audio processing. The device supports **I2S, left-justified, and right-justified** digital input formats, offering flexibility for various system designs.  

With its **low power consumption** and robust performance, the PCM1781 is a reliable choice for designers seeking high-fidelity audio reproduction. Its compact package and industry-standard pinout further facilitate seamless implementation in modern audio systems. Whether used in digital audio workstations, Blu-ray players, or premium DAC modules, the PCM1781 stands out as a dependable solution for superior sound clarity and detail.

Application Scenarios & Design Considerations

24-Bit, 192-kHz Sampling, Enhanced Multilevel, Delta-Sigma, Audio Digital-to-Analog Converter

Alternative Part Number

  • CS4344-CZZ --: Stereo audio DAC with similar 24-bit resolution and I2S interface, widely used as a drop-in alternative in audio systems.
  • AK4384VT --: 24-bit stereo DAC with comparable performance and I2S input, suitable replacement for audio playback applications.
  • WM8524GEDT --: Low-cost 24-bit stereo DAC with similar interface and audio performance, often used where PCM1781 is specified.
  • CS4398 --: High-performance 24-bit 192 kHz stereo DAC with similar audio quality and pin-compatible digital interface, widely used as a PCM1781 replacement in audio designs.
  • AK4396 --: 24-bit 192 kHz stereo DAC offering comparable dynamic range and THD performance, a common alternative in consumer audio equipment.
  • WM8741 --: High-end 24-bit 192 kHz stereo DAC with excellent audio specifications and flexible digital filter options, suitable for premium audio applications replacing the PCM1781.

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