As high-performance audio systems become more integrated and efficient, developers and engineers need flexible ICs that can handle multiple functions—such as analog-to-digital and digital-to-analog conversion—with precision and low latency. Enter the CS42528 from Cirrus Logic, a powerful audio interface IC that combines multi-channel ADCs and DACs into one compact solution.
In this article, we break down the CS42528 interface IC’s features, specifications, applications, and provide links to its datasheet and compatible components. For OEMs and hardware engineers looking for trusted suppliers of ICs, DRex Electronics offers high-quality sourcing and support.
🔍 What is the CS42528?
The CS42528 is a highly integrated audio codec IC from Cirrus Logic. It combines a stereo analog-to-digital converter (ADC) and eight digital-to-analog converters (DACs) into a single chip. It supports professional-grade digital audio interfaces like I²S, left-justified, right-justified, and TDM, making it ideal for multi-channel audio systems.
📦 Product Overview
| Parameter | Value |
|---|---|
| Manufacturer | Cirrus Logic |
| Functionality | Audio Codec (ADC + DAC) |
| Channels | 2 ADC / 8 DAC |
| Interface | I²S, TDM, SPI/I²C |
| Package | 64-pin LQFP |
| Temperature | –40°C to +85°C (Industrial) |
📘 Official CS42528 Datasheet – Cirrus Logic
🛒 Explore CS42528 and related audio ICs on DRex Electronics
✅ Key Features of CS42528
| Feature | Description |
|---|---|
| 2-in, 8-out architecture | Supports stereo input and 7.1 output or other multi-channel configs |
| 24-bit conversion | Professional-grade audio resolution |
| Supports up to 192 kHz | High-fidelity audio for digital processing |
| Low latency path | Ideal for real-time systems like live audio and communications gear |
| Digital Volume Control | Independent volume control for all DAC outputs |
| Integrated PLL | Supports master/slave clock operation |
| Flexible interface support | I²S, left/right justified, TDM formats |
| SPI/I²C Control Interface | Simple host microcontroller integration |
| Pop-and-click suppression | Clean power-up and power-down sequencing |
🛠 Applications of CS42528
The CS42528’s combination of high-resolution audio conversion, low noise, and flexibility makes it suitable for a wide range of industries.
Common Use Cases
| Application Type | Usage Example |
|---|---|
| Professional Audio Gear | Mixers, audio interfaces, sound processors |
| Home Theater Systems | AV receivers, surround sound processors |
| Automotive Audio Systems | Infotainment systems, in-car surround sound |
| Digital TVs & Set-Top Boxes | Audio routing and speaker control |
| Broadcast Equipment | Audio mixing, digital audio processing |
📘 Related: The Ultimate Guide to Audio with TDA7498E
🔌 Interface Support and Integration
One of the CS42528’s major strengths is its extensive digital audio interface compatibility, which makes it easy to integrate into a wide range of systems:
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I²S for serial audio data
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Left/Right Justified formats for legacy compatibility
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Time-Division Multiplexing (TDM) for multi-channel audio
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SPI/I²C interface for configuration and control
This flexibility allows it to work with popular microcontrollers and DSPs like those from STM32, Texas Instruments, and NXP.
📘 Related: STM32H7: A Game-Changer in the Microcontroller World
📏 Electrical Specifications (Highlights)
| Parameter | Typical Value |
|---|---|
| Supply Voltage (Analog) | 3.3V |
| Supply Voltage (Digital) | 1.8V to 3.3V |
| THD+N | –98 dB (DAC), –95 dB (ADC) |
| Dynamic Range | 114 dB (DAC), 108 dB (ADC) |
| Power Consumption | ~300 mW |
| Operating Temp Range | –40°C to +85°C |
🔄 Compatible Alternatives to CS42528
In the event of sourcing challenges or design variations, here are some alternative parts with similar performance:
| Part Number | Manufacturer | Key Differences |
|---|---|---|
| CS42448 | Cirrus Logic | 6 DAC channels instead of 8 |
| AK4458VN | Asahi Kasei | 8-channel DAC only (no ADC) |
| PCM3168A | Texas Instruments | 6 ADC + 8 DAC, higher performance |
| ADAU1467 | Analog Devices | Codec + DSP, more integrated functions |
🛒 Need a drop-in replacement or alternate part? Request a quote from DRex Electronics
🛒 Why Source from DRex Electronics?
At DRex Electronics, we support OEMs, R&D labs, and manufacturers with:
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✅ Verified Cirrus Logic stock and equivalents
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✅ ISO 9001-certified supply chain
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✅ Fast BOM matching and alternate part sourcing
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✅ Global shipping and logistics coordination
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✅ Engineering support with datasheets and integration tips
📩 Upload your BOM or contact our sourcing team
🔚 Conclusion
The CS42528 interface IC is a powerful and flexible solution for multi-channel audio applications. Its high-resolution ADC/DAC integration, low power design, and broad digital audio interface support make it ideal for demanding professional and consumer audio products.
For sourcing CS42528, compatible audio ICs, or custom procurement assistance, DRex Electronics is your trusted partner in electronic components.
