PCM1794AQDBRQ1

Product Overview

Category: Integrated Circuit (IC)

Use: Digital-to-Analog Converter (DAC)

Characteristics: - High-performance audio DAC - Supports 24-bit resolution - Sampling rates up to 192 kHz - Low total harmonic distortion and noise - Wide dynamic range - Differential current output - Suitable for high-end audio applications

Package: QFN (Quad Flat No-Lead)

Essence: The PCM1794AQDBRQ1 is a high-quality audio DAC designed for converting digital audio signals into analog signals with exceptional accuracy and fidelity.

Packaging/Quantity: The PCM1794AQDBRQ1 is available in a QFN package and is typically sold in reels of 2500 units.

Specifications

• Resolution: 24 bits
• Sampling Rate: Up to 192 kHz
• Total Harmonic Distortion + Noise (THD+N): <0.001%
• Signal-to-Noise Ratio (SNR): >120 dB
• Dynamic Range (DNR): >120 dB
• Output Voltage Swing: 2 Vrms
• Power Supply Voltage: 3.3 V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The PCM1794AQDBRQ1 has a total of 28 pins, which are assigned specific functions. Here is the detailed pin configuration:

1. AVDD: Analog power supply voltage
2. DVDD: Digital power supply voltage
3. AGND: Analog ground
4. DGND: Digital ground
5. IOUTL: Left channel differential current output
6. IOUTR: Right channel differential current output
7. VCOM: Common-mode voltage reference
8. BCK: Bit clock input
9. LRCK: Word clock input
10. SDIN: Serial data input
11. MUTE: Mute control input
12. DEEMPH: De-emphasis control input
13. OSF0: Oversampling filter selection bit 0
14. OSF1: Oversampling filter selection bit 1
15. OSF2: Oversampling filter selection bit 2
16. VREF: Reference voltage output
17. AVCC: Analog power supply voltage
18. DVCC: Digital power supply voltage
19. NC: No connection
20. NC: No connection
21. NC: No connection
22. NC: No connection
23. NC: No connection
24. NC: No connection
25. NC: No connection
26. NC: No connection
27. NC: No connection
28. NC: No connection

Functional Features

• High-resolution audio playback
• Low distortion and noise levels
• Wide dynamic range for accurate sound reproduction
• Differential current output for improved performance
• Supports various oversampling filter options
• Mute and de-emphasis control for enhanced flexibility

Advantages and Disadvantages

Advantages: - Exceptional audio quality - High resolution and sampling rates - Low distortion and noise levels - Wide dynamic range - Flexible oversampling filter options - Suitable for high-end audio applications

Disadvantages: - Requires external components for complete audio system integration - Relatively higher cost compared to lower-end DACs

Working Principles

The PCM1794AQDBRQ1 operates by receiving digital audio data and converting it into analog signals using a sophisticated digital-to-analog conversion process. The incoming digital audio is processed, filtered, and converted into a continuous analog waveform that accurately represents the original audio signal. The resulting analog signal can then be amplified and sent to speakers or headphones for audio playback.

Detailed Application Field Plans

The PCM1794AQDBRQ1 is widely used in various high-end audio applications, including: - Professional studio equipment - Audiophile-grade audio systems - Home theater receivers - High-fidelity stereo amplifiers - Digital audio workstations (DAWs) - Musical instruments and synthesizers

Alternative Models

Here are some alternative models that can be considered as alternatives to the PCM1794AQDBRQ1: - PCM1792A: Similar performance and features, but with a different pin configuration - AK4490EQ: High-performance DAC with comparable specifications - ES9038PRO: Flagship DAC with advanced features and exceptional audio quality

Please note that the above alternatives may have different pin configurations and package options, so careful consideration should be given to compatibility and system requirements when selecting an alternative model.

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