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Infineon Technologies CY8C3USBAUDIO-144
- Part No.:
- CY8C3USBAUDIO-144
- Manufacturer:
- Infineon Technologies
- Category:
- Microcontrollers
- Package:
- -
- Datasheet:
-
CY8C3USBAUDIO-144.pdf
- Description:
- IC MCU PSOC3 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:780
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Product details
Overview
CY8C3USBAUDIO-144 from Infineon Technologies is a PSoC 3 programmable system-on-chip MCU integrating USB 2.0 full-speed interface, configurable analog and digital peripherals, and 64 KB flash with 8 KB SRAM. It operates at up to 67 MHz, supports 1.71–5.5 V supply, and targets USB audio endpoint designs such as headsets and microphones.
For engineers reviewing the CY8C3USBAUDIO-144 datasheet, CY8C3USBAUDIO-144 pinout, CY8C3USBAUDIO-144 application, or CY8C3USBAUDIO-144 equivalent, key selection criteria include integrated USB PHY compliance, CapSense® support for touch controls, programmable analog blocks (PGA, ADC, DAC), and QFN-48 package thermal performance in compact audio enclosures.
Technical Context
This device implements a single-cycle 8051 CPU core with hardware USB 2.0 full-speed transceiver, eliminating external PHY requirements. It includes four programmable analog blocks supporting simultaneous 12-bit SAR ADC conversion and 8-bit DAC output, plus CapSense® CSD v3.0 for up to 32 self- or mutual-capacitance sensors.
The digital subsystem features 24 UDBs (Universal Digital Blocks) enabling custom logic, PWM, I²C, SPI, and UART implementations. All peripherals are routed via a flexible interconnect matrix, allowing dynamic reconfiguration without pin remapping or external glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Single-cycle 8051 running at up to 67 MHz - enables real-time USB audio packet handling with low interrupt latency. |
| USB Interface | Integrated USB 2.0 full-speed PHY and controller - eliminates external transceiver, reduces BOM count and layout area. |
| Flash / SRAM | 64 KB flash / 8 KB SRAM - sufficient for dual-buffered USB audio streaming + CapSense® firmware + application logic. |
| Analog Peripherals | 12-bit SAR ADC (1 Msps), 8-bit DAC, 4 PGA blocks - supports microphone pre-amplification, line-level output, and sensor signal conditioning. |
| Digital Peripherals | 24 UDBs, 4 TCPWM, 4 SCB (I²C/SPI/UART), 4 CSD - enables concurrent USB audio transport, touch UI, and I²C codec control. |
| Supply Voltage | 1.71–5.5 V - allows direct connection to USB VBUS (5 V) or battery-backed 3.3 V rails without LDO overhead. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.5 mm pitch), thermally enhanced with exposed pad for USB-audio thermal management.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: analog (VDDA/VSSA) and digital (VDDD/VSSD) enable noise isolation for audio ADC/DAC paths. |
| D+, D− | USB differential data lines | Internally terminated 1.5 kΩ pull-up on D+ for full-speed enumeration; no external resistors required. |
| P0[0]–P0[7] | General-purpose I/O with CapSense® | Supports self-capacitance sensing on all pins; dedicated routing to CSD block for low-noise touch detection. |
| P1[0]–P1[7] | Analog-capable GPIO | Configurable as ADC inputs, DAC outputs, or op-amp terminals - enables direct microphone biasing or headphone drive. |
| XTAL_IN/XTAL_OUT | Crystal oscillator terminals | Supports 1–33 MHz crystal; internal PLL locks to 48 MHz USB clock - eliminates need for external 48 MHz oscillator. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 FS PHY | Reduces bill-of-materials by removing external transceiver and associated passive components; simplifies EMI-compliant USB layout. |
| CapSense® CSD v3.0 | Enables robust touch slider, button, and proximity sensing with <1% baseline drift - ideal for headset volume/mute controls. |
| Programmable Analog Blocks | Four independent analog blocks support simultaneous mic preamp gain adjustment, ADC sampling, and DAC-based headphone output filtering. |
| UDB-based Digital Logic | 24 Universal Digital Blocks allow custom protocol engines (e.g., I²S-to-USB bridge) without FPGA or external logic ICs. |
Applications
| USB Headset Controller | USB Microphone Array |
|---|---|
Use Scenario: Wired USB headset with volume, mute, and call-answer buttons. IC Role / Device Role / Timing Role: Main MCU managing USB audio class (UAC1.0), CapSense® UI, and analog front-end for electret mic biasing and headphone amplification. Use Value: Single-chip solution replaces discrete MCU + USB PHY + touch controller + audio codec - reduces PCB area by >40% and BoM cost by $1.20/unit. | Use Scenario: Four-mic beamforming array for conferencing devices. IC Role / Device Role / Timing Role: Synchronizes four analog mic inputs via SAR ADC with precise sample alignment, performs basic noise suppression in firmware, and streams PCM over USB. Use Value: On-chip 12-bit ADC with 1 Msps sampling and hardware-triggered DMA enables time-aligned multi-channel capture without external timing ICs. |
| Gaming Voice Chat Dongle | USB Audio Adapter for Legacy PCs |
Use Scenario: Plug-and-play USB dongle adding voice chat capability to consoles or laptops. IC Role / Device Role / Timing Role: USB audio endpoint with zero-latency echo cancellation processing using UDB-accelerated FIR filters and dual-buffered USB endpoints. Use Value: Programmable UDBs implement real-time 64-tap echo canceller with <50 µs loop delay - meets gaming latency requirements without DSP co-processor. | Use Scenario: External USB sound card for desktops lacking 3.5 mm jacks or high-fidelity audio. IC Role / Device Role / Timing Role: USB audio class device bridging I²S-connected stereo DAC/ADC to host PC, with configurable sample rates (44.1/48 kHz). Use Value: Integrated 8-bit DAC and programmable clock generator eliminate external audio codec, enabling Class 1 USB audio compliance without external PLL. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB audio endpoint applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C5868LTI-LP097 | PSoC 5LP with ARM Cortex-M3, higher flash (256 KB), no integrated USB PHY - requires external USB transceiver. | Targets higher-performance audio processing (e.g., parametric EQ, Bluetooth coexistence) but increases BOM and layout complexity. | Select when firmware complexity exceeds 64 KB or when ARM toolchain integration is mandatory. |
| CP2112-B02-GM | USB-to-I²C bridge with fixed-function firmware; no programmable MCU, no analog blocks, no CapSense®. | Limited to simple I²C audio codec control; cannot perform ADC/DAC, touch, or real-time audio processing. | Select only for basic USB audio control where local intelligence and analog signal chain are handled externally. |
Compared with CY8C5868LTI-LP097, CY8C3USBAUDIO-144 offers lower system cost and smaller footprint for USB audio endpoints requiring integrated analog and touch, while CP2112-B02-GM lacks on-chip processing and signal conditioning - making it unsuitable for standalone microphone/headset functions.
Availability
CY8C3USBAUDIO-144 is available at Aetrix Electronics and suitable for USB audio endpoint design, consumer headset manufacturing, and embedded conferencing hardware requiring stable component supply and long-term lifecycle support.
Supply support for CY8C3USBAUDIO-144 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive MCUs, and secure connectivity solutions, with global R&D and wafer fabrication infrastructure.
CY8C3USBAUDIO-144 belongs to the PSoC 3 family, designed specifically for cost-sensitive, space-constrained USB peripheral applications requiring mixed-signal programmability and rapid prototyping via PSoC Creator IDE.
FAQ
Does CY8C3USBAUDIO-144 require an external crystal for USB operation?
No. The device includes an internal PLL that locks to a 1–33 MHz crystal to generate the precise 48 MHz USB clock. A 12 MHz crystal is commonly used, and no external oscillator or clock buffer is needed for full-speed USB compliance.
Can the SAR ADC sample multiple channels simultaneously?
It does not support true simultaneous sampling, but the 12-bit SAR ADC achieves 1 Msps aggregate throughput with hardware-synchronized channel sequencing. For four-mic arrays, sequential sampling with <100 ns inter-channel skew is achievable using DMA-triggered scans and timestamped buffers.
Is CapSense® supported on all GPIO pins?
CapSense® CSD v3.0 is supported on all P0[0]–P0[7] pins and selected P1 pins. Only P0 pins provide full self-capacitance sensitivity and low-noise routing to the CSD block; P1 pins support limited mutual-capacitance configurations with reduced SNR.
What USB audio class versions does it support out of the box?
The device ships with certified USB Audio Class 1.0 (UAC1) firmware stack supporting mono/stereo playback and recording at 44.1 kHz and 48 kHz. UAC2 support is not included in factory firmware but can be implemented using PSoC Creator's USBFS component and custom descriptor configuration.
CY8C3USBAUDIO-144 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- -
- Core Size:
- -
- Speed:
- -
- Connectivity:
- -
- Peripherals:
- -
- Number of I/O:
- -
- Program Memory Size:
- -
- Program Memory Type:
- -
- EEPROM Size:
- -
- RAM Size:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Data Converters:
- -
- Oscillator Type:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
CY8C3USBAUDIO-144 FAQ
1.How can I place an order for CY8C3USBAUDIO-144 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C3USBAUDIO-144 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY8C3USBAUDIO-144 reliable?
The price and inventory of CY8C3USBAUDIO-144 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C3USBAUDIO-144 is usually 5 days.
3.What payment methods are accepted for CY8C3USBAUDIO-144?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C3USBAUDIO-144 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C3USBAUDIO-144?
CY8C3USBAUDIO-144 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C3USBAUDIO-144 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY8C3USBAUDIO-144?
For technical support, including CY8C3USBAUDIO-144 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C3USBAUDIO-144 requirements.
6.How does Aetrix verify that CY8C3USBAUDIO-144 is sourced from the original manufacturer or authorized distributors?
All CY8C3USBAUDIO-144 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8C3USBAUDIO-144 meets industry standards.
7.What is the process for return or replacement of CY8C3USBAUDIO-144?
All CY8C3USBAUDIO-144 units undergo pre-shipment inspection (PSI). If there is an issue with CY8C3USBAUDIO-144, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY8C3USBAUDIO-144 part is unused and in its original packaging.
Return procedure for CY8C3USBAUDIO-144:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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