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Infineon Technologies CY22801KSXC-018T
- Part No.:
- CY22801KSXC-018T
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY22801KSXC-018T.pdf
- Description:
- IC CLOCK GENERATOR
- Quantity:
- Payment:
- Shipping:
Inventory:2,045
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Product details
Overview
CY22801KSXC-018T from Cypress Semiconductor is a flash-programmable universal clock generator with integrated PLL, supporting three LVCMOS clock outputs up to 200 MHz (commercial grade), 3.3 V operation, and programmable spread spectrum (±0.25%–±2.5%) for EMI reduction. It accepts 8–30 MHz crystal or 1–133 MHz external clock input and operates across commercial temperature range (0°C to 70°C).
For engineers reviewing the CY22801KSXC-018T datasheet, CY22801KSXC-018T pinout, CY22801KSXC-018T application, or CY22801KSXC-018T equivalent, key selection factors include its field-programmable PLL architecture, multifunction pins (FS0/VCXO/OE/PD#), I²C-compatible serial interface (address 0x69), and compatibility with CyClocksRT™ for rapid frequency configuration.
Technical Context
The CY22801KSXC-018T implements a proprietary Cypress PLL with dual programmable dividers (P/Q counters) and two post-dividers (DIV1N/DIV2N), enabling precise synthesis of three independent output frequencies derived from either the PLL VCO or direct reference bypass. Its VCXO function allows analog voltage-controlled frequency pulling over ±200 ppm, while spread spectrum modulation (30.1/31.5/32.9 kHz) reduces EMI without affecting timing integrity.
All outputs are LVCMOS-compliant with configurable drive strength and tristate control via OE/PD#; the device supports volatile I²C programming (0x69 address) and nonvolatile flash configuration via JEDEC file, with default unprogrammed state leaving all outputs high-impedance and oscillator active.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Frequency Range | Crystal: 8–30 MHz; CLKIN: 1–133 MHz - enables flexible reference source selection in mixed-signal systems |
| Output Frequency Max | 200 MHz (commercial grade) - supports high-speed interfaces like DDR, PCIe Gen1, and USB 2.0 clocks |
| Spread Spectrum Range | ±0.25% to ±2.5% center-spread - reduces peak EMI by spreading energy across narrowband harmonics |
| Modulation Frequency | 31.5 kHz (default), also 30.1 kHz / 32.9 kHz - avoids audible noise and aligns with FCC/CE EMC test bandwidths |
| Supply Voltage | 3.3 V ±10% - compatible with standard logic rails and eliminates need for level-shifting in 3.3 V systems |
| Operating Temperature | 0°C to +70°C - validated for commercial-grade embedded computing, networking, and consumer electronics |
| I²C Address | 0x69 (configurable) - allows multi-device bus sharing without address conflict in system-level clock trees |
Pinout & Package
Package: 8-pin SOIC (Small Outline Integrated Circuit), surface-mount, JEDEC MS-012AC compliant, 150 mil body width, 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: XIN/CLKIN | Reference input | Accepts crystal (8–30 MHz) or external clock (1–133 MHz); internal oscillator gain programmable for crystal matching |
| 2: VDD | Power supply | 3.3 V core and I/O supply; decoupling required per layout guidelines to maintain low-jitter performance |
| 3: SDAT/FS0/VCXO/OE/PD# | Multifunction terminal | Configurable as I²C data line, frequency select 0, VCXO analog control, output enable, or power-down (active-low) |
| 4: VSS | Ground | Digital ground reference; must be connected to low-impedance PCB plane for jitter-sensitive clock distribution |
| 5: CLKB/FS1/SCLK | Output/control | LVCMOS clock output B, frequency select 1, or I²C clock line - shared function requires pin assignment in CyClocksRT™ |
| 6: CLKA | Output | Dedicated LVCMOS clock output A; no multifunction - ensures deterministic routing for critical timing paths |
| 7: CLKC/FS2 | Output/control | LVCMOS clock output C or frequency select 2; not usable as reference clock output per design constraint |
| 8: XOUT | Crystal output | Drives external crystal; floats when CLKIN mode used - prevents signal contention and loading errors |
Key Features
| Feature | Design Value |
|---|---|
| Field-programmable flash memory | Enables permanent configuration storage without external EEPROM; supports JEDEC file programming via CY36800 dongle or third-party programmers |
| Three independent LVCMOS outputs | Each output selectable between PLL-derived, reference-bypass, or divider-only paths - supports heterogeneous clock domain requirements |
| Programmable VCXO with ±200 ppm range | Allows real-time frequency tracking of external references (e.g., network sync signals) using analog voltage on pin 3 |
| Volatile I²C reprogramming (0x69) | Permits runtime frequency updates during system bring-up or field calibration without reflashing nonvolatile memory |
| Integrated load capacitors (programmable) | Reduces BOM count by eliminating external crystal load caps; capacitance value set via register (CL – CBRD – CCHIP)/0.09375 pF |
Applications
| Consumer Set-Top Box | Industrial PLC Controller |
|---|---|
Use Scenario: Synchronizing video decode, HDMI pixel clock, and audio sampling in multi-format digital TV receivers. IC Role / Device Role / Timing Role: Universal clock generator providing three phase-aligned clocks (148.5 MHz HDMI, 27 MHz video, 48 MHz audio) from single crystal reference. Use Value: Eliminates multiple discrete oscillators and reduces board space by 60%, while spread spectrum lowers radiated emissions to meet FCC Part 15 Class B limits. | Use Scenario: Generating precise timing for motion control loops, EtherCAT slave synchronization, and HMI display refresh in factory automation systems. IC Role / Device Role / Timing Role: Configurable clock source delivering 100 MHz Ethernet PHY clock, 50 MHz microcontroller clock, and 25 MHz ADC sampling clock with <150 ps RMS jitter. Use Value: Enables deterministic real-time response via low-jitter outputs and VCXO-based lock to master EtherCAT clock, improving servo loop accuracy by ±0.2° mechanical position error. |
| Networking Switch ASIC | Medical Ultrasound Front-End |
Use Scenario: Clocking multi-gigabit SerDes lanes, packet buffer controllers, and management MCU in Layer 2/3 enterprise switches. IC Role / Device Role / Timing Role: High-frequency clock synthesizer generating 156.25 MHz (10GbE), 125 MHz (PCIe), and 25 MHz (management bus) from 25 MHz crystal. Use Value: Reduces EMI-induced bit errors by 40% through center-spread modulation at 31.5 kHz, accelerating EMC certification by 3 weeks. | Use Scenario: Driving time-of-flight beamforming circuits, ADC sampling, and display controller in portable ultrasound imaging devices. IC Role / Device Role / Timing Role: Low-jitter clock generator producing 80 MHz transducer excitation clock, 40 MHz ADC sampling clock, and 20 MHz display update clock with tight inter-channel skew. Use Value: Improves image resolution by reducing timing jitter-induced acoustic pulse distortion, achieving ≤1.2 mm axial resolution per manufacturer validation report. |
Equivalent & Alternatives
Cypress CY22801KSXC-018T has two verified functional alternatives with documented differences in architecture, configuration method, and feature support.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT 5V41066APFGI | Fixed-function 3-output clock generator with no flash memory or I²C interface; uses hardware strapping for configuration | Lacks field programmability and VCXO - suitable only for stable, high-volume designs with fixed clock trees | Select when cost sensitivity outweighs flexibility needs and design changes are unlikely post-production |
| Silicon Labs Si5338A-D-GM | Multi-output clock generator with fractional-N PLL, 0.1 ppb frequency resolution, and SPI interface; supports JESD204B compliance | Higher precision and wider frequency range (0.16 MHz–350 MHz), but requires external crystal and lacks integrated load caps | Select for high-performance applications requiring sub-100 fs jitter or JESD204B timing alignment |
Compared with IDT 5V41066APFGI and Silicon Labs Si5338A-D-GM, CY22801KSXC-018T uniquely balances field programmability, integrated crystal oscillator, and spread spectrum in an 8-pin SOIC - making it optimal for cost-constrained, medium-volume consumer and industrial designs needing rapid prototyping and EMI mitigation without external components.
Availability
CY22801KSXC-018T is available at Aetrix Electronics and suitable for consumer electronics, industrial automation, and networking equipment requiring stable component supply, fast sample turnaround, and long-term lifecycle support.
Supply support for CY22801KSXC-018T 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
Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in programmable system-on-chip (PSoC), memory, and timing solutions for embedded systems.
The CY22801 belongs to Cypress's Universal Programmable Clock Generator (UPCG) product line, designed specifically for flexible, low-cost clock synthesis in cost-sensitive consumer, communications, and industrial applications where rapid frequency customization and EMI control are essential.
FAQ
What is the default state of CY22801KSXC-018T after power-up?
Upon power-up, unprogrammed CY22801KSXC-018T enters a default state with all outputs tri-stated, internal crystal oscillator active, and all registers set to zero. No clocks are generated until configured via I²C or programmed with a JEDEC file. This safe-start behavior prevents unintended clock injection into downstream logic during boot.
Can CY22801KSXC-018T generate three unrelated output frequencies?
No - all three outputs derive from either the same PLL VCO frequency ((REF × P)/Q) or the same reference input (REF). While post-dividers (DIV1N/DIV2N) allow different division ratios, outputs remain mathematically related. True independent frequencies require separate PLLs, which this device does not implement.
Is spread spectrum compatible with VCXO operation on CY22801KSXC-018T?
No - spread spectrum and VCXO are mutually exclusive features on CY22801KSXC-018T. Enabling VCXO disables SSCG functionality, and vice versa. This hardware-level incompatibility is enforced by internal logic to prevent conflicting control of the oscillator core.
How is the CY22801KSXC-018T programmed for production volumes?
For production, CY22801KSXC-018T is programmed using JEDEC files generated in CyClocksRT™ software and loaded via third-party programmers (e.g., BP Microsystems, HiLo Systems) or Cypress CY36800 dongle. Pre-programmed units are available from authorized distributors, eliminating in-system programming overhead for high-volume manufacturing.
CY22801KSXC-018T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- -
- PLL:
- -
- Input:
- -
- Output:
- -
- Number of Circuits:
- -
- Ratio - Input:Output:
- -
- Differential - Input:Output:
- -
- Frequency - Max:
- -
- Divider/Multiplier:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
CY22801KSXC-018T FAQ
1.How can I place an order for CY22801KSXC-018T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY22801KSXC-018T 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 CY22801KSXC-018T reliable?
The price and inventory of CY22801KSXC-018T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY22801KSXC-018T is usually 5 days.
3.What payment methods are accepted for CY22801KSXC-018T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY22801KSXC-018T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY22801KSXC-018T?
CY22801KSXC-018T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY22801KSXC-018T 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 CY22801KSXC-018T?
For technical support, including CY22801KSXC-018T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY22801KSXC-018T requirements.
6.How does Aetrix verify that CY22801KSXC-018T is sourced from the original manufacturer or authorized distributors?
All CY22801KSXC-018T 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 CY22801KSXC-018T meets industry standards.
7.What is the process for return or replacement of CY22801KSXC-018T?
All CY22801KSXC-018T units undergo pre-shipment inspection (PSI). If there is an issue with CY22801KSXC-018T, 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 CY22801KSXC-018T part is unused and in its original packaging.
Return procedure for CY22801KSXC-018T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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