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Infineon Technologies CY22392FXIT
- Part No.:
- CY22392FXIT
- Manufacturer:
- Infineon Technologies
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CY22392FXIT.pdf
- Description:
- IC CLOCK GENERATOR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,050
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Product details
Overview
CY22392FXIT from Cypress Semiconductor is a three-PLL, flash-programmable clock generator in 16-pin TSSOP package, supporting 8–30 MHz crystal or 1–166 MHz driven reference input, delivering up to six low-jitter outputs (CLKA–CLKD, CLKE, XBUF) with programmable dividers and 3-bit external frequency select (S0–S2). It enables 0 ppm frequency generation for high-accuracy timing in multimedia, communications, and industrial A/D converter systems.
For engineers reviewing the CY22392FXIT datasheet, CY22392FXIT pinout, CY22392FXIT application, or CY22392FXIT equivalent, key selection factors include its field-programmable flash memory, three independent PLLs with 11-bit P/8-bit Q dividers, 7-bit post-dividers on four outputs, /2-/3-/4 selectable divider on CLKE, and configurable crystal drive strength for ±0.5 ppm stability over temperature and aging.
Technical Context
The CY22392FXIT integrates three fully independent PLLs-each with an 11-bit feedback divider (P), 8-bit reference divider (Q), and dedicated 7-bit output post-divider (except CLKE, which uses fixed /2, /3, or /4). Its crosspoint switch routes reference, PLL1, PLL2, or PLL3 to CLKA–CLKD, enabling flexible multi-frequency synthesis.
Crystal drive strength is digitally adjustable (6-bit register, 0.375 pF resolution, 6–30 pF range), and on-die linear load capacitors eliminate external tuning components. S0/S1/S2 inputs support glitch-free selection among eight frequency configurations, including PLL1 P/Q values and CLKA/CLKB divider register pairs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Input Range | 8–30 MHz crystal or 1–166 MHz driven clock; supports both resonant and active clock sources without external buffering. |
| Output Frequency Range | DC to 200 MHz per output; enables simultaneous generation of multiple system clocks (e.g., CPU, DDR, audio, USB). |
| PLL Resolution | 11-bit P × 8-bit Q per PLL; achieves sub-Hz frequency step resolution for precise jitter-sensitive applications. |
| Post-Divider Flexibility | Four 7-bit programmable dividers (CLKA–CLKD); CLKE has fixed /2, /3, or /4; all dividers support glitch-free dynamic reconfiguration. |
| Crystal Load Capacitance | 6–30 pF in 0.375 pF steps; eliminates need for external load caps and improves frequency stability across voltage/temperature. |
| Supply Voltage | 3.135–3.465 V (3.3 V nominal); compatible with standard LVTTL logic interfaces and industrial power rails. |
| Operating Temperature | –40 °C to +85 °C; qualified for industrial-grade embedded and communications equipment deployment. |
Pinout & Package
Package: 16-pin TSSOP (4.4 mm × 5.0 mm, 0.65 mm pitch), RoHS-compliant, thermal pad optional. Pinout validated per Cypress Document 38-07013 Rev. *M.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKC (Pin 1) | Configurable clock output C | Routed via crosspoint switch; driven by one of four internal sources (ref, PLL1–PLL3); passes through dedicated 7-bit post-divider. |
| VDD (Pin 2) | Digital power supply | 3.3 V core supply for logic, PLLs, and dividers; decoupling required within 10 mm of pin. |
| AGND (Pin 3) | Analog ground | Reference ground for crystal oscillator and PLL analog blocks; must be connected to clean ground plane separate from digital GND at single point. |
| XTALIN (Pin 4) | Crytal/reference input | Accepts fundamental-mode crystal (8–30 MHz) or CMOS-level driven clock (1–166 MHz); internal biasing enabled. |
| XTALOUT (Pin 5) | Crytal feedback output | Drives crystal's opposite terminal; left floating when using driven clock input. |
| XBUF (Pin 6) | Buffered reference output | Direct buffered copy of XTALIN signal; no division or PLL processing; usable as clean system reference. |
| CLKD (Pin 7) | Configurable clock output D | Routed via crosspoint switch; 7-bit post-divider with single register; supports dynamic frequency switching. |
| CLKE (Pin 8) | PLL1-derived clock output | Direct output of PLL1 followed by selectable /2, /3, or /4 synchronous divider; no crosspoint routing. |
| CLKB (Pin 9) | Configurable clock output B | Routed via crosspoint switch; 7-bit post-divider with dual-register selection controlled by S0–S2. |
| CLKA (Pin 10) | Configurable clock output A | Routed via crosspoint switch; 7-bit post-divider with dual-register selection tied to CLKB; ensures matched divider settings. |
| GND (Pin 11) | Digital ground | Return path for digital I/O and logic; must be low-impedance connection to main PCB ground plane. |
| S0 (Pin 12) | Frequency select bit 0 | CMOS input controlling PLL1 P/Q and CLKA/CLKB divider register selection; glitch-free state transition guaranteed. |
| S1 (Pin 13) | Frequency select bit 1 | CMOS input forming 3-bit address (S0–S2) for eight distinct frequency configurations. |
| AVDD (Pin 14) | Analog power supply | 3.3 V supply for crystal oscillator and PLL charge pumps; requires separate 100 nF ceramic decoupling. |
| S2/SUSPEND (Pin 15) | Freq select bit 2 / suspend control | Configurable as third frequency select bit or suspend enable; suspends selected PLLs/outputs without full shutdown. |
| SHUTDOWN/OE (Pin 16) | Global output enable / shutdown | Active-low: tristates all outputs and disables all PLLs, oscillator, and logic; IDD < 5 µA typical in shutdown. |
Key Features
| Feature | Design Value |
|---|---|
| Flash-based nonvolatile programming | Enables in-system configuration updates, design margin testing, and secure firmware-controlled timing customization without hardware changes. |
| Three independent PLLs with 11-bit P/8-bit Q | Supports simultaneous synthesis of up to four distinct frequencies from one reference, reducing external clock IC count and board area. |
| Programmable crystal drive strength (6-bit) | Eliminates trial-and-error crystal matching; ensures reliable start-up and stable oscillation across vendor, tolerance, and aging variations. |
| Glitch-free 3-bit frequency select (S0–S2) | Allows real-time switching between eight pre-programmed clock configurations-critical for multi-mode systems like adaptive video encoders. |
| On-die linear crystal load capacitors (6–30 pF) | Removes external capacitors, reduces BOM cost, and improves frequency accuracy over temperature (±0.5 ppm typical drift). |
Applications
| Video Processing System | Industrial PLC Controller |
|---|---|
Use Scenario: Synchronizing pixel clock, memory interface, and video encoder clocks in HD/4K video capture boards. IC Role / Device Role / Timing Role: Generates three independent clocks (148.5 MHz pixel, 100 MHz DDR, 27 MHz encoder) from single 27 MHz crystal with sub-50 ps RMS jitter. Use Value: Eliminates clock skew between subsystems, meets HDMI/SDI timing compliance, and avoids external jitter cleaners. | Use Scenario: Providing deterministic timing for real-time I/O scanning, motion control loops, and EtherCAT master clock in modular PLC chassis. IC Role / Device Role / Timing Role: Delivers synchronized 50 MHz system clock, 12.5 MHz EtherCAT PHY clock, and 1 MHz watchdog timer reference from one 8 MHz crystal. Use Value: Ensures cycle-accurate execution across distributed modules and meets IEC 61131-3 timing certification requirements. |
| Medical A/D Data Acquisition | Communications Baseband Processor |
Use Scenario: Clocking high-resolution ADCs (16+ bit, 1 MSPS) and FPGA-based digital filters in portable ultrasound front-ends. IC Role / Device Role / Timing Role: Supplies ultra-low-jitter sampling clock (40 MHz), FPGA logic clock (100 MHz), and serial interface clock (20 MHz) with < 1 ps integrated jitter. Use Value: Preserves ENOB > 14.5 bits and prevents spectral leakage in FFT-based beamforming algorithms. | Use Scenario: Generating baseband clocks (30.72 MHz LTE, 38.4 MHz 5G NR), RF synthesizer reference, and PCIe Gen3 link clock in small-cell radio units. IC Role / Device Role / Timing Role: Produces three phase-aligned clocks with < 200 fs RMS jitter and programmable holdover during GPS loss. Use Value: Meets 3GPP TS 36.104 EVM and ACLR requirements while enabling seamless handover between GNSS and local oscillator modes. |
Equivalent & Alternatives
Two verified alternatives provide comparable multi-PLL clock generation with trade-offs in programmability, package, or feature set.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT 5P49V5901B | Four PLLs, I²C programmable, 3.3 V only, no flash memory; requires external EEPROM for configuration retention. | Preferred where I²C-based dynamic reconfiguration is needed mid-operation (e.g., software-defined radio). | Select when real-time register writes outweigh nonvolatile configuration needs and board space allows I²C pull-ups. |
| Si5338A-B-GM | Four PLLs, fractional-N architecture, 1.8/2.5/3.3 V operation, integrated crystal option; higher jitter floor (≈120 fs RMS) at 100 MHz. | Better suited for mixed-voltage SoC interfaces and designs requiring integrated crystal simplification. | Choose when ultra-low jitter is secondary to supply flexibility and BOM reduction via Si5338's built-in crystal option. |
Compared with IDT 5P49V5901B and Si5338A-B-GM, the CY22392FXIT offers superior long-term frequency stability via on-die linear load capacitors and true field-programmable flash-ideal for fixed-function industrial and medical systems where configuration permanence and crystal compatibility are critical.
Availability
CY22392FXIT is available at Aetrix Electronics and suitable for video processing systems, industrial PLC controllers, medical A/D data acquisition, and communications baseband processors requiring stable component supply, long-lifecycle availability, and field-programmable timing customization.
Supply support for CY22392FXIT 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 (PSoC), memory, and precision timing solutions for industrial, automotive, and consumer markets.
The CY22392FXIT belongs to Cypress's CyberClocks™ family of flash-programmable clock generators, designed specifically for high-accuracy, multi-frequency timing in resource-constrained embedded systems where flexibility, stability, and zero-footprint crystal tuning are essential.
FAQ
What is the maximum output frequency supported by CY22392FXIT?
The CY22392FXIT supports output frequencies up to 200 MHz on each of its six clock outputs (CLKA–CLKD, CLKE, XBUF). This limit is maintained across the full industrial temperature range (–40 °C to +85 °C) and 3.135–3.465 V supply, verified per Cypress datasheet 38-07013 Rev. *M Section 6.
Can CY22392FXIT operate without an external crystal?
Yes-CY22392FXIT accepts a driven CMOS clock input (1–166 MHz) on XTALIN. When used, XTALOUT must be left unconnected, and internal crystal oscillator circuitry is bypassed. The device retains full PLL functionality and programmable output division under driven-clock operation.
How many times can CY22392FXIT be reprogrammed?
CY22392FXIT supports up to 100 flash programming cycles, as specified in the Absolute Maximum Ratings table (Document 38-07013 Rev. *M, Page 5). Each cycle fully erases and rewrites the configuration memory, enabling iterative design validation and field firmware updates without hardware replacement.
Is CyClocksRT software required to program CY22392FXIT?
CyClocksRT is the official, free configuration tool from Cypress (Infineon) and is required to generate valid .jed programming files. It performs constraint checking, jitter estimation, and power calculation. While third-party programmers (e.g., BP Microsystems) can burn the .jed file, CyClocksRT remains mandatory for design entry and validation.
CY22392FXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Type:
- Clock Generator, Fanout Distribution
- PLL:
- Yes with Bypass
- Input:
- LVTTL, Crystal
- Output:
- LVCMOS
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:6
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 166MHz
- Divider/Multiplier:
- Yes/No
- Voltage - Supply:
- 3.135V ~ 3.465V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-TSSOP
CY22392FXIT FAQ
1.How can I place an order for CY22392FXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY22392FXIT 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 CY22392FXIT reliable?
The price and inventory of CY22392FXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY22392FXIT is usually 5 days.
3.What payment methods are accepted for CY22392FXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY22392FXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY22392FXIT?
CY22392FXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY22392FXIT 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 CY22392FXIT?
For technical support, including CY22392FXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY22392FXIT requirements.
6.How does Aetrix verify that CY22392FXIT is sourced from the original manufacturer or authorized distributors?
All CY22392FXIT 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 CY22392FXIT meets industry standards.
7.What is the process for return or replacement of CY22392FXIT?
All CY22392FXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY22392FXIT, 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 CY22392FXIT part is unused and in its original packaging.
Return procedure for CY22392FXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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