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Infineon Technologies CY22800FXC
- Part No.:
- CY22800FXC
- Manufacturer:
- Infineon Technologies
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY22800FXC.pdf
- Description:
- IC CLOCK GENERATOR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,413
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Product details
Overview
CY22800FXC from Cypress Semiconductor is a field-programmable universal clock generator with integrated PLL, supporting spread spectrum clocking (SSCG), VCXO tuning, and up to three frequency-select configurations. It accepts crystal (8–30 MHz) or external clock (0.5–100 MHz) inputs and delivers low-jitter outputs from 1–200 MHz (commercial) or 1–166 MHz (industrial), operating at 3.3 V in an 8-pin SOIC package for consumer electronics timing applications including HDTV, STB, and DVD recorders.
For engineers reviewing the CY22800FXC datasheet, CY22800FXC pinout, CY22800FXC application, or CY22800FXC equivalent, this device offers reprogrammable configuration (up to 100 times), selectable spread-spectrum modulation depth (±0.25% to ±2.0%), VCXO analog control input, triple-output capability (CLKA/CLKB/CLKC), and factory-predefined profiles for MPEG-2, USB/Ethernet, audio (256fs/384fs), and PCI clocking - all within a single 8-pin SOIC footprint.
Technical Context
The CY22800FXC implements Cypress's proprietary phase-locked loop architecture with programmable feedback dividers and output dividers, enabling precise integer and fractional frequency synthesis across its full input/output range. Its SSCG engine modulates output frequency using preprogrammed profiles with fixed modulation frequencies tied to reference input.
VCXO functionality is implemented via analog voltage control on FS0/VCXO (Pin 3), allowing ±200 ppm tuning range over 0–3.5 V, while frequency select logic (FS0–FS2) configures one of eight predefined output modes. Pin definitions are context-sensitive and change per configuration - e.g., CLKA/FS0 serves dual roles depending on programming state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.3 V ±5% - ensures compatibility with modern low-voltage digital systems and eliminates need for level-shifting circuitry. |
| Input Frequency Range | Crystal: 8–30 MHz; CLKIN: 0.5–100 MHz - supports both quartz resonators and buffered system clocks as reference sources. |
| Output Frequency Range | Commercial: 1–200 MHz; Industrial: 1–166 MHz - covers pixel clocks (74.25 MHz), audio master clocks (24.576 MHz), and processor clocks (133.33 MHz). |
| Spread Spectrum Range | ±0.25% to ±2.0% modulation depth - reduces EMI peak emissions without altering average clock frequency or system timing margins. |
| VCXO Tuning Range | ±200 ppm over 0–3.5 V analog input - enables dynamic frequency tracking for synchronization with variable-rate reference signals. |
| Reprogrammability | Up to 100 write cycles via CY36800 programmer dongle - supports rapid prototyping and field firmware updates without component replacement. |
| Package | 8-pin SOIC (3.9 mm × 4.9 mm) - standard surface-mount footprint compatible with automated assembly and thermal management in dense PCB layouts. |
Pinout & Package
8-pin SOIC package with exposed pad option not supported; standard JEDEC MS-012AC outline, 1.27 mm pitch, 1.75 mm max height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| XIN (Pin 1) | Reference Input | Accepts either crystal (8–30 MHz) or external clock (0.5–100 MHz); internal oscillator circuitry enables direct crystal connection without external load capacitors. |
| VDD (Pin 2) | Power Supply | 3.3 V supply input; requires local 0.1 µF ceramic decoupling capacitor placed within 5 mm of pin for stable PLL operation. |
| FS0/VCXO (Pin 3) | Frequency Select 0 / VCXO Control | Dual-function pin: digital select line in static mode; analog voltage input (0–3.5 V) for ±200 ppm frequency pulling when VCXO enabled. |
| VSS (Pin 4) | Ground | Analog/digital common ground reference; must be connected to low-impedance PCB ground plane to minimize jitter coupling. |
| CLKB/FS1 (Pin 5) | Clock Output B / Frequency Select 1 | Configurable as primary output (e.g., REFOUT, 27 MHz, or spread-modulated clock) or secondary frequency select control in multi-mode configurations. |
| CLKA/FS0 (Pin 6) | Clock Output A / Frequency Select 0 | Primary output channel supporting up to 200 MHz; shares pin with FS0 in non-VCXO modes - requires careful configuration sequencing during programming. |
| CLKC/FS2/VSS (Pin 7) | Clock Output C / Frequency Select 2 / Ground | Third output or auxiliary select line; functions as VSS only in specific configurations - pin role determined by programmed configuration code. |
| XOUT (Pin 8) | Reference Output | Buffered crystal or CLKIN signal output; left unconnected when external clock is used as reference to avoid loading effects. |
Key Features
| Feature | Design Value |
|---|---|
| Field-programmable configuration | 100-cycle reprogrammability enables late-stage design changes and production-line calibration without hardware revision. |
| Triple independent clock outputs | CLKA, CLKB, CLKC support simultaneous generation of distinct frequencies (e.g., 27 MHz + 54 MHz + 27 MHz for MPEG-2 systems) with individual spread-spectrum enable/disable. |
| Integrated spread-spectrum modulation | Eight fixed modulation depths (±0.25% to ±2.0%) reduce radiated EMI by spreading energy across narrowband peaks - validated for FCC/CE compliance acceleration. |
| VCXO analog tuning interface | 0–3.5 V analog input on FS0/VCXO provides real-time frequency adjustment for lock-to-reference applications such as cable STB sync or network timing recovery. |
| Predefined application-specific profiles | 64+ factory-configured codes (e.g., CY22800-023A for MPEG-2, CY22800-029A for USB/Ethernet) eliminate custom PLL register programming and shorten time-to-sample. |
Applications
| HDTV & Set-Top Box Timing | MPEG-2 Digital Video Systems |
|---|---|
|
Use Scenario: Synchronizing video pixel clock (74.25 MHz), audio master clock (24.576 MHz), and system bus clock (133.33 MHz) in a single-chip media processor platform. IC Role / Device Role / Timing Role: Universal clock generator providing three synchronized, low-jitter outputs with independent spread-spectrum control per channel. Use Value: Eliminates need for four discrete oscillators and reduces board space by 65% while meeting SMPTE 292 and ITU-R BT.656 timing skew requirements. |
Use Scenario: Generating 27 MHz, 54 MHz, and 27 MHz clocks for MPEG-2 transport stream demux, video decoder, and audio DAC in broadcast DTV receivers. IC Role / Device Role / Timing Role: Configured as CY22800-023A to deliver exact MPEG-2 compliant frequencies with VCXO tracking for crystal aging compensation. Use Value: Maintains <±50 ppm long-term stability across temperature and voltage variations, satisfying ETSI EN 300 429 timing tolerance limits. |
| PCI/ASIC Clock Distribution | Audio Master Clock Generation |
|
Use Scenario: Providing spread-spectrum 33.33 MHz and 66.66 MHz clocks to PCI Express root complex and companion ASIC in embedded computing modules. IC Role / Device Role / Timing Role: Operating in CY22800-037A mode with –0.5% SSCG to suppress 33/66 MHz harmonic emissions below CISPR 22 Class B limits. Use Value: Achieves 12 dB reduction in 100–500 MHz radiated emissions without requiring ferrite beads or shielding cans on clock traces. |
Use Scenario: Deriving 256fs (12.288 MHz), 384fs (18.432 MHz), and 512fs (24.576 MHz) audio sample rate clocks from a 27 MHz crystal in HDMI audio processors. IC Role / Device Role / Timing Role: Using CY22800-033A–CY22800-036A configurations to generate exact integer multiples of base audio rates with <1 ps RMS jitter. Use Value: Enables 24-bit/192 kHz playback with THD+N < –110 dB, meeting AES17 professional audio performance benchmarks. |
Equivalent & Alternatives
CY22800FXC is superseded by newer Cypress offerings with enhanced features; two verified drop-in alternatives exist for legacy design continuity and extended lifecycle support.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY22381FXC | Same 8-pin SOIC package and pin-compatible; adds I²C interface for dynamic frequency reconfiguration and improved SSCG resolution (0.05% steps). | Supports real-time clock adjustment in closed-loop systems (e.g., network-synced STBs); retains all CY22800 configuration codes via backward-compatible mode. | Select when future-proofing for software-defined timing or adding remote calibration capability without PCB redesign. |
| Si5338A-D-GM | 4-output, 0.25 ps RMS jitter, 1.8–3.3 V supply; requires external EEPROM and I²C initialization - not pin-compatible. | Targets high-end applications needing sub-ps jitter (e.g., 10G Ethernet PHY clocks); lacks built-in VCXO but offers superior phase noise (<–150 dBc/Hz @ 10 kHz). | Select only if migrating to new PCB layout and requiring ultra-low jitter; not suitable for direct CY22800FXC replacement without firmware and schematic changes. |
Compared with CY22381FXC, CY22800FXC lacks I²C control but offers simpler programming via CY36800 dongle and broader VCXO analog tuning range; versus Si5338A-D-GM, it trades jitter performance for lower BOM cost, zero-configuration startup, and seamless integration into existing consumer electronics designs.
Availability
CY22800FXC is available at Aetrix Electronics and suitable for HDTV, set-top box, and DVD recorder designs requiring stable component supply, long-lifecycle availability, and consistent parametric performance across commercial and industrial temperature grades.
Supply support for CY22800FXC 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 U.S.-based semiconductor company specializing in programmable system-on-chip solutions, memory, and timing devices for consumer, industrial, and automotive markets.
The CY22800 product line was designed specifically for cost-sensitive, high-volume consumer electronics requiring flexible, field-programmable clock synthesis - targeting HDTV, STB, and optical storage platforms where inventory consolidation and rapid prototyping are critical.
FAQ
What programming hardware is required to configure the CY22800FXC?
The CY22800FXC is programmed exclusively using the Cypress CY36800 USB-based programmer dongle and associated configuration software. This tool loads one of 64+ predefined configuration files (e.g., CY22800-029A for USB/Ethernet clocks) directly into the device's on-chip memory. No external microcontroller or firmware development is needed - programming takes under 3 seconds and supports up to 100 write cycles.
Does the CY22800FXC require external passive components for crystal operation?
No external load capacitors are required when using a crystal with the CY22800FXC. The device integrates internal capacitors optimized for standard 8–30 MHz fundamental-mode crystals. For best EMI and jitter performance, a 20–30 Ω series resistor should be placed between XIN and the crystal, and XOUT must remain unconnected when using external CLKIN to prevent signal reflection and phase noise degradation.
Can CLKA, CLKB, and CLKC operate at different frequencies simultaneously?
Yes - the CY22800FXC supports independent frequency generation on all three outputs in most configurations. For example, CY22800-032A delivers 74.25 MHz on CLKA (pixel clock) and 27 MHz on CLKB (reference), while CY22800-023A generates 27 MHz, 54 MHz, and 27 MHz respectively. Output independence is enforced by separate divider chains and configurable spread-spectrum enable bits per channel.
Is the VCXO function available in all CY22800FXC configurations?
VCXO functionality is only active in configurations explicitly designated with "Y" in the VCXO column of Table 2 - such as CY22800-023A through CY22800-028A (MPEG-2 STB variants) and CY22800-115A through CY22800-122A (industrial spread-spectrum variants). In non-VCXO modes, Pin 3 (FS0/VCXO) operates solely as a digital frequency select input and must be driven to a defined logic level.
CY22800FXC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Verified
- Type:
- Clock Generator, Fanout Distribution
- PLL:
- Yes
- Input:
- Clock, Crystal
- Output:
- LVCMOS
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:3
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 200MHz
- Divider/Multiplier:
- Yes/Yes
- Voltage - Supply:
- 3.14V ~ 3.47V
- Operating Temperature:
- 0°C ~ 70°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
CY22800FXC FAQ
1.How can I place an order for CY22800FXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY22800FXC 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 CY22800FXC reliable?
The price and inventory of CY22800FXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY22800FXC is usually 5 days.
3.What payment methods are accepted for CY22800FXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY22800FXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY22800FXC?
CY22800FXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY22800FXC 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 CY22800FXC?
For technical support, including CY22800FXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY22800FXC requirements.
6.How does Aetrix verify that CY22800FXC is sourced from the original manufacturer or authorized distributors?
All CY22800FXC 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 CY22800FXC meets industry standards.
7.What is the process for return or replacement of CY22800FXC?
All CY22800FXC units undergo pre-shipment inspection (PSI). If there is an issue with CY22800FXC, 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 CY22800FXC part is unused and in its original packaging.
Return procedure for CY22800FXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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