Editorial Technical Reference

Audio DAC

This page explains how Audio DAC is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Electronic component that converts digital audio signals to analog signals for playback

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Product Specifications

Technical details and manufacturing context for Audio DAC

Definition
An Audio DAC (Digital-to-Analog Converter) is a critical component within a Wireless Receiver Module that processes incoming digital audio data streams and converts them into analog audio signals suitable for amplification and output through speakers or headphones. It ensures high-fidelity audio reproduction by accurately reconstructing the original analog waveform from digital samples. The DAC operates by receiving digital audio data, typically in PCM format, from the receiver's digital processing unit. It uses internal circuitry, often based on delta-sigma modulation or multi-bit architectures, to reconstruct the analog waveform by generating voltage levels corresponding to the digital values at precise time intervals determined by the sampling rate. Key stages include digital filtering, oversampling, noise shaping, and analog output buffering. The component is fabricated using silicon semiconductor technology, with gold bonding wires for internal connections, and is housed in ceramic or plastic packaging. Typical parameters include a resolution of 24 bits, a sampling rate of 192 kHz, a dynamic range of 120 dB, a signal-to-noise ratio of 120 dB, total harmonic distortion plus noise of 0.001%, output voltage of 2.1 V RMS, supply voltage of 3.3–5 V DC, power consumption of 100–200 mW, operating temperature range of -40 to 85 °C, and a package type of SOIC-16. These values are directory reference ranges and must be confirmed for the specific model and application. The DAC is designed for use in consumer and industrial audio applications where accurate digital-to-analog conversion is required. It is important to verify model-specific specifications and compliance with relevant standards with the legal manufacturer or supplier before procurement or integration.
Working Principle
The Audio DAC receives digital audio data, typically in PCM format, from the receiver's digital processing unit. It uses internal circuitry, often based on delta-sigma modulation or multi-bit architectures, to reconstruct the analog waveform by generating voltage levels corresponding to the digital values at precise time intervals determined by the sampling rate. Key stages include digital filtering, oversampling, noise shaping, and analog output buffering.
Common Materials
Silicon semiconductor, Gold bonding wires, Ceramic or plastic packaging
Technical Parameters
ParameterTypical rangeNotes & selection driver
Resolution24 bitHigher resolution for better audio fidelity
Sampling Rate192 kHzSupports high-resolution audio
Dynamic Range120 dBHigher is better for quiet passages
Signal-to-Noise Ratio120 dBHigher is better for noise-free output
Total Harmonic Distortion + Noise0.001 %Lower is better for accurate reproduction
Output Voltage2.1 V RMSTypical for consumer audio
Supply Voltage3.3–5 V DCCommon digital supply range
Power Consumption100–200 mWDepends on output load
Operating Temperature-40–85 °CIndustrial grade
Package TypeSOIC-16Surface mount for compact design

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Digital Interface Part
    Receives digital audio data from the receiver's processor via I2S, S/PDIF, or other protocols
    Material: Silicon
  • Digital Filter
    Processes incoming digital data to reduce aliasing and improve signal quality
    Material: Silicon
  • Delta-Sigma Modulator
    Converts high-resolution digital data to lower-resolution, high-frequency bitstream
    Material: Silicon
  • Analog Output Stage
    Converts the processed signal to analog voltage and provides buffering for external amplification
    Material: Silicon with passive components
  • Clock Circuitry Part
    Provides precise timing for digital-to-analog conversion synchronization
    Material: Quartz crystal, silicon

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Wireless Receiver Module
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
voltage: 1.8V to 3.3V typical (digital), ±5V to ±15V typical (analog)
temperature: -40°C to +85°C (industrial grade), 0°C to +70°C (commercial grade)
sampling rate: 44.1kHz to 768kHz (standard), up to 1.536MHz (high-end)
signal to noise ratio: >100dB (standard), >120dB (high-fidelity)
total harmonic distortion: <0.001% (high-end), <0.01% (standard)
Media Compatibility
✓ Professional audio equipment (mixers, amplifiers) ✓ Consumer electronics (smartphones, headphones) ✓ Automotive infotainment systems
Unsuitable: High-vibration industrial machinery without proper shock mounting
Sizing Data Required
  • Required sampling rate and bit depth (e.g., 192kHz/24-bit)
  • Output voltage/current requirements for connected analog components
  • Power supply constraints (voltage, current, noise immunity)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Signal Distortion or Dropout
Cause: Degradation of digital-to-analog conversion components (e.g., aging DAC chips, capacitor drift) due to thermal stress, voltage fluctuations, or prolonged operation leading to timing errors, jitter, or bit errors in audio output.
Electrical Overstress or Short Circuit
Cause: Power supply anomalies (e.g., voltage spikes, surges), poor grounding, or component failure (e.g., blown capacitors, damaged ICs) from environmental factors like humidity, dust ingress, or inadequate cooling causing overheating and electrical damage.
Maintenance Indicators
  • Audible: Intermittent crackling, popping, or complete loss of audio output during operation.
  • Visual: Unusual LED indicator behavior (e.g., flickering, failure to illuminate) or visible signs of overheating (e.g., discoloration, burnt smell) on the device casing or components.
Engineering Tips
  • Implement controlled thermal management: Ensure adequate ventilation, use heat sinks if necessary, and avoid stacking equipment to prevent overheating, which accelerates component degradation and reduces DAC lifespan.
  • Maintain stable power quality: Use surge protectors or uninterruptible power supplies (UPS) to filter electrical noise and prevent voltage spikes, and regularly inspect power connections and grounding to minimize electrical stress on sensitive circuits.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO/IEC 60958: Digital audio interface ANSI/CTA-2006-D: Performance measurement of digital-to-analog converters DIN EN 50332-2: Sound system equipment - Headphones and earphones associated with personal music players

Quoted from the published standard.

Manufacturing Precision
  • THD+N: <0.001% (20Hz-20kHz)
  • Frequency response: +/-0.1dB (20Hz-20kHz)
Quality Inspection
  • Jitter measurement test
  • Dynamic range and SNR verification

Manufacturers of Audio DAC

Manufacturer profiles associated with Audio DAC.

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Frequently Asked Questions

What is the typical resolution and sampling rate of this Audio DAC?

The directory lists a resolution of 24 bits and a sampling rate of 192 kHz. These are reference values; confirm the exact specifications for the specific model with the manufacturer.

What is the operating temperature range?

The listed operating temperature range is -40 to 85 °C, which is typical for industrial-grade components. Verify the range for your specific application and model.

What package type is available?

The package type is listed as SOIC-16, which is a surface-mount package suitable for compact designs. Confirm the package and pinout with the supplier.

How should I verify the performance specifications?

Always refer to the manufacturer's datasheet for the specific model. The values provided here are directory references and must be confirmed for your intended use.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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