PCM1780DBQ

Product Overview

Category: Integrated Circuit (IC)

Use: Digital-to-Analog Converter (DAC)

Characteristics: - High-performance audio DAC - Low power consumption - Small form factor - Wide dynamic range - High signal-to-noise ratio

Package: DBQ (SSOP-28)

Essence: The PCM1780DBQ is a high-quality audio DAC designed for various applications in the audio industry. It provides accurate and precise conversion of digital audio signals into analog format.

Packaging/Quantity: The PCM1780DBQ is available in SSOP-28 package and is typically sold in reels or tubes containing multiple units.

Specifications

• Resolution: 24-bit
• Sampling Rate: Up to 192 kHz
• Total Harmonic Distortion + Noise (THD+N): <0.001%
• Signal-to-Noise Ratio (SNR): >110 dB
• Dynamic Range (DNR): >100 dB
• Power Supply Voltage: 3.3 V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The PCM1780DBQ has a total of 28 pins, each serving a specific function. Here is a detailed pin configuration:

1. VCOM: Common voltage reference
2. AVDD: Analog power supply voltage
3. AGND: Analog ground
4. DVDD: Digital power supply voltage
5. DGND: Digital ground
6. BCK: Bit clock input
7. LRCK: Left/right clock input
8. DIN: Serial data input
9. MUTE: Mute control input
10. DEEMPH: De-emphasis control input
11. SLOW: Slow roll-off control input
12. FMT0: Format select bit 0
13. FMT1: Format select bit 1
14. SCLK: Serial clock input
15. VOUTR: Right channel analog output
16. VOUTL: Left channel analog output 17-28. NC: No connection

Functional Features

• High-resolution audio conversion
• Support for various digital audio formats (I2S, left-justified, right-justified)
• Built-in digital filters for enhanced audio performance
• On-chip voltage reference for accurate conversion
• Mute and de-emphasis control options
• Low power consumption for energy-efficient operation

Advantages and Disadvantages

Advantages: - High-quality audio conversion with low distortion - Wide dynamic range and high signal-to-noise ratio - Compact package size for space-constrained applications - Flexible format selection options - Low power consumption for energy efficiency

Disadvantages: - Limited pin compatibility with other ICs - Requires external components for complete audio system integration - Higher cost compared to lower-end DAC alternatives

Working Principles

The PCM1780DBQ operates by receiving a digital audio signal through the DIN pin. The internal circuitry then processes the digital data and converts it into an analog signal. This analog signal is then amplified and made available at the VOUTR and VOUTL pins for further audio processing or direct output.

Detailed Application Field Plans

The PCM1780DBQ is widely used in various audio-related applications, including: - Professional audio equipment - Home theater systems - Car audio systems - Portable audio devices - Musical instruments - Audio mixing consoles

Detailed and Complete Alternative Models

• PCM1794A: Similar high-performance audio DAC with improved specifications
• PCM5102A: Lower-cost audio DAC with good performance for consumer applications
• AK4490EQ: High-end audio DAC with exceptional audio quality and advanced features

These alternative models offer different trade-offs in terms of performance, cost, and additional features, allowing users to choose the most suitable option for their specific requirements.

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