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Infineon Technologies CY22801KSXC-014T
- Part No.:
- CY22801KSXC-014T
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY22801KSXC-014T.pdf
- Description:
- IC CLOCK GENERATOR
- Quantity:
- Payment:
- Shipping:
Inventory:3,858
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Product details
Overview
CY22801KSXC-014T from Cypress Semiconductor is a flash-programmable universal clock generator with integrated PLL, supporting three LVCMOS clock outputs up to 200 MHz (commercial grade), 166.6 MHz (industrial grade), and configurable spread-spectrum modulation (±0.25% to ±2.5%) for EMI reduction in high-speed digital systems such as set-top boxes and network interface cards.
For engineers reviewing the CY22801KSXC-014T datasheet, CY22801KSXC-014T pinout, CY22801KSXC-014T application, or CY22801KSXC-014T equivalent, key selection criteria include I²C-based field programmability, VCXO analog tuning capability, multifunction pin configuration (FS/OE/PD#/VCXO/SDAT/SCLK), and compatibility with crystal (8–30 MHz) or external clock (1–133 MHz) reference inputs.
Technical Context
The CY22801KSXC-014T implements a proprietary Cypress PLL architecture with dual programmable post-dividers (DIV1N/DIV2N) and a crosspoint switch matrix enabling independent routing of REF, PLL output, or divided signals to CLKA, CLKB, and CLKC. It supports both volatile I²C programming (address 0x69) and non-volatile flash configuration via JEDEC files.
Its VCXO function accepts analog voltage (0–3.3 V) on pin 3 to tune crystal frequency across ±200 ppm, while spread spectrum modulation operates at selectable frequencies (30.1/31.5/32.9 kHz) and is mutually exclusive with VCXO and serial interface use on shared pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Frequency Range | Crystal: 8–30 MHz; External CLKIN: 1–133 MHz - enables flexible reference source selection without external buffer |
| Output Frequency Max | 200 MHz (commercial), 166.6 MHz (industrial) - defines maximum system clock rate for PCIe Gen1 or DDR2 memory interfaces |
| Spread Spectrum Range | ±0.25% to ±2.5% center-spread, –0.5% to –5.0% down-spread - reduces peak EMI by spreading energy across 30–33 kHz bandwidth |
| Modulation Frequency | 30.1 / 31.5 / 32.9 kHz - matches regulatory EMC test sweep rates for reliable compliance validation |
| Supply Voltage | 3.3 V ±10% - compatible with standard LDOs and eliminates need for level-shifting in 3.3 V logic domains |
| Operating Temperature | 0°C to +70°C (commercial), –40°C to +85°C (industrial) - supports deployment in consumer and industrial ambient environments |
| I²C Address | 0x69 (default), configurable - avoids bus collision in multi-device timing subsystems |
Pinout & Package
8-pin SOIC (Small Outline Integrated Circuit) package, 150 mil width, JEDEC MS-012AC compliant, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: XIN/CLKIN | Reference input | Accepts either crystal (8–30 MHz) or external clock (1–133 MHz); determines base PLL reference frequency |
| 2: VDD | Power supply | 3.3 V supply rail; requires local 0.1 µF ceramic decoupling adjacent to pin |
| 3: SDAT/FS0/VCXO/OE/PD# | Multifunction terminal | Configurable as I²C data line, frequency select 0, VCXO analog control (0–3.3 V), output enable, or active-low power-down |
| 4: VSS | Ground | Digital ground return; must be connected to low-impedance PCB plane |
| 5: CLKB/FS1/SCLK | Multifunction output/control | Primary clock output B or frequency select 1 or I²C clock line - selected via register configuration |
| 6: CLKA | Clock output A | Dedicated LVCMOS output; routed directly from crosspoint matrix - no shared-function conflict |
| 7: CLKC/FS2 | Multifunction output/control | Third clock output or frequency select 2 - cannot serve as reference clock output per design constraint |
| 8: XOUT | Crystal output | Drives external crystal; left floating when CLKIN mode used - internal oscillator load caps reduce BOM count |
Key Features
| Feature | Design Value |
|---|---|
| Flash-programmable PLL | Enables permanent frequency configuration without external EEPROM; supports rapid prototyping and design iteration |
| Three independent LVCMOS outputs | Each output configurable via crosspoint matrix and post-divider - allows mixed-frequency clocking (e.g., 100 MHz CPU + 25 MHz USB + 50 MHz PCIe) |
| Programmable crystal oscillator gain | Eight-bit register controls inverter drive strength - ensures stable oscillation across crystal manufacturer variations and aging effects |
| Integrated load capacitors | On-die parallel-plate capacitors replace external CL components - reduces board area and improves temperature stability of crystal frequency |
| I²C-compatible serial interface | Volatile in-system programming at 100 kHz/400 kHz - enables runtime clock reconfiguration during system bring-up or field updates |
Applications
| Set-Top Box Timing | Network Interface Card (NIC) |
|---|---|
Use Scenario: Synchronizing MPEG decoder, video DAC, and HDMI transmitter clocks from single reference source. IC Role / Device Role / Timing Role: Universal clock generator providing three phase-aligned outputs: 27 MHz for video processing, 100 MHz for MAC controller, and 125 MHz for PHY interface. Use Value: Eliminates multiple discrete oscillators and reduces jitter accumulation across signal chains via shared PLL core. | Use Scenario: Generating precise clocks for Gigabit Ethernet PHY, PCI Express root complex, and management controller in embedded switch fabric. IC Role / Device Role / Timing Role: Configurable clock source delivering 125 MHz PCIe refclk, 25 MHz MDIO, and 156.25 MHz Ethernet reference with spread spectrum enabled on all outputs. Use Value: Meets FCC Class B radiated emissions limits without added shielding or ferrites, accelerating EMC certification. |
| Industrial PLC Controller | Digital Audio Workstation (DAW) |
Use Scenario: Providing deterministic timing for real-time I/O scanning, EtherCAT slave synchronization, and HMI display refresh in factory automation hardware. IC Role / Device Role / Timing Role: Industrial-grade clock generator operating from –40°C to +85°C, supplying 62.5 MHz EtherCAT clock, 50 MHz FPGA logic clock, and 24.576 MHz audio codec clock. Use Value: Maintains <150 fs RMS jitter across temperature range - preserves timing margin for sub-microsecond cycle times. | Use Scenario: Delivering low-jitter master clocks to ADC/DAC converters, SPDIF transceivers, and FPGA-based sample-rate converters in professional audio gear. IC Role / Device Role / Timing Role: VCXO-enabled clock generator locked to external word clock (44.1/48 kHz), generating 22.5792 MHz, 24.576 MHz, and 11.2896 MHz audio domain clocks. Use Value: Achieves ±10 ppm frequency accuracy over temperature via analog VCXO tuning - meets AES11 sync requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar universal clock generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT5V41001PGG | Fixed-output triple clock generator (no field programming); no VCXO or spread spectrum; 3.3 V only | Suitable for cost-sensitive, static-clock designs where frequency changes are not required post-BOM freeze | Select when design requires guaranteed production consistency and eliminates programming step |
| Si5351A-B-GM | Multi-output CMOS clock generator with I²C interface; supports up to 8 outputs; no VCXO; spread spectrum not supported | Better suited for applications needing >3 outputs or finer frequency resolution (down to 0.01 Hz steps) | Choose when scalable output count or ultra-fine frequency granularity outweighs VCXO requirement |
Compared with IDT5V41001PGG and Si5351A-B-GM, the CY22801KSXC-014T uniquely combines flash programmability, analog VCXO tuning, and EMI-reducing spread spectrum in an 8-pin SOIC - making it optimal for mid-volume, field-upgradable timing subsystems requiring flexibility and regulatory compliance.
Availability
CY22801KSXC-014T is available at Aetrix Electronics and suitable for set-top box timing, network interface card clocking, and industrial PLC controller applications requiring stable component supply and long-term manufacturability.
Supply support for CY22801KSXC-014T 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 and industrial markets.
The CY22801 belongs to Cypress's Universal Programmable Clock Generator (UPCG) product line, designed specifically for flexible, low-jitter clock synthesis in cost-sensitive consumer and communications equipment where field configurability and EMI mitigation are critical.
FAQ
What is the default state of CY22801KSXC-014T after power-up?
At power-on, unprogrammed CY22801KSXC-014T defaults to all outputs tri-stated, crystal oscillator active, and all registers set to zero. It remains in this state until configured via I²C or programmed with a JEDEC file. No clock outputs are active without prior configuration.
Can VCXO and spread spectrum be used simultaneously on CY22801KSXC-014T?
No. VCXO and spread spectrum are mutually exclusive features due to conflicting use of pin 3 (SDAT/VCXO) and internal resource allocation. Enabling VCXO disables spread spectrum functionality, and vice versa - this is enforced in CyClocksRT software and documented in the datasheet.
How is the crystal load capacitance configured on CY22801KSXC-014T?
Crystal load capacitance is set via an 8-bit register controlling on-die parallel-plate capacitors. Users enter nominal crystal CL (e.g., 12 pF or 18 pF) in CyClocksRT software, which calculates and programs the required CapLoad value using the formula CapLoad = (CL – CBRD – CCHIP) / 0.09375 pF.
Does CY22801KSXC-014T support output frequencies below 1 MHz?
Yes. With maximum post-divider values (e.g., /DIV1N or /DIV2N), the device can generate outputs as low as 1 kHz when driven by a 133 MHz CLKIN and appropriate P/Q divider settings. Minimum output frequency is constrained only by integer divider resolution and jitter accumulation at extreme division ratios.
CY22801KSXC-014T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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-014T FAQ
1.How can I place an order for CY22801KSXC-014T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY22801KSXC-014T 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-014T reliable?
The price and inventory of CY22801KSXC-014T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY22801KSXC-014T is usually 5 days.
3.What payment methods are accepted for CY22801KSXC-014T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY22801KSXC-014T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY22801KSXC-014T?
CY22801KSXC-014T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY22801KSXC-014T 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-014T?
For technical support, including CY22801KSXC-014T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY22801KSXC-014T requirements.
6.How does Aetrix verify that CY22801KSXC-014T is sourced from the original manufacturer or authorized distributors?
All CY22801KSXC-014T 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-014T meets industry standards.
7.What is the process for return or replacement of CY22801KSXC-014T?
All CY22801KSXC-014T units undergo pre-shipment inspection (PSI). If there is an issue with CY22801KSXC-014T, 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-014T part is unused and in its original packaging.
Return procedure for CY22801KSXC-014T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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