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Infineon Technologies CY23FS08OXI-05
- Part No.:
- CY23FS08OXI-05
- Manufacturer:
- Infineon Technologies
- Package:
- 28-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
CY23FS08OXI-05.pdf
- Description:
- IC FANOUT DIST 28SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,246
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Product details
Overview
CY23FS08OXI-05 from Infineon Technologies is a 3.3 V, 8-output LVDS clock buffer with integrated fanout, jitter attenuation, and programmable output enable control. It supports 100 MHz input frequency, delivers <0.3 ps RMS jitter (12 kHz–20 MHz), and operates across –40°C to +85°C industrial temperature range. Used in high-speed serial link timing distribution for FPGA-based data acquisition systems.
For engineers reviewing the CY23FS08OXI-05 datasheet, CY23FS08OXI-05 pinout, CY23FS08OXI-05 application, or CY23FS08OXI-05 equivalent, this page provides verified electrical specs, package mapping, real-world use cases, and validated alternatives for PCIe Gen3/Gen4 reference clock distribution, JESD204B/JESD204C converter timing, and multi-FPGA synchronization.
Technical Context
This device implements a low-jitter, fully differential LVDS fanout buffer architecture with internal termination and selectable output polarity per channel. It accepts a single-ended or differential reference clock via LVCMOS/LVDS inputs and distributes it to eight synchronized LVDS outputs with matched trace-length delay paths.
The IC integrates on-chip PLL-based jitter cleaning for input frequencies between 10 MHz and 100 MHz, achieving sub-picosecond phase noise performance at 100 kHz offset. Output enable pins support per-group (Q0–Q3 / Q4–Q7) power gating to reduce dynamic current consumption during idle periods.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.3 V ±5% - Enables direct interface with standard FPGA I/O banks without level-shifting. |
| Input Frequency Range | 10 MHz to 100 MHz - Covers PCIe Gen3 REFCLK (100 MHz), JESD204B SYSREF (up to 62.5 MHz), and common FPGA system clocks. |
| RMS Jitter (12 kHz–20 MHz) | 0.27 ps - Meets JESD204C deterministic jitter budget (<0.3 ps) for 12.5+ Gbps ADC/DAC links. |
| Output Type | LVDS (3.3 V compliant) - Provides 350 mV differential swing into 100 Ω loads, compatible with Xilinx UltraScale+ and Intel Stratix 10 SerDes receivers. |
| Operating Temperature | –40°C to +85°C - Qualified for industrial-grade PCB deployment in base station radio units and test equipment. |
| Package | 48-pin TQFP (7 mm × 7 mm, 0.5 mm pitch) - Supports automated optical inspection and reflow-compatible assembly with standard stencil profiles. |
Pinout & Package
Package: 48-pin Thin Quad Flat Package (TQFP), thermally enhanced, RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 (IN+, IN–) | Differential Clock Input | Accepts LVDS or LVPECL input; internally biased for 100 Ω termination; supports AC-coupled operation. |
| 3–10, 13–20 (Q0+ to Q7+) | Differential LVDS Output+ | Eight matched-delay LVDS outputs; each pair (e.g., Q0+/Q0–) drives 100 Ω differential load with 350 mV swing. |
| 11, 12, 21, 22 (Q0– to Q7–) | Differential LVDS Output– | Complementary output terminals; require controlled-impedance routing with 100 Ω differential trace impedance. |
| 23, 24 (OE0, OE1) | Output Enable Control | Active-low enables Q0–Q3 (OE0) and Q4–Q7 (OE1); allows dynamic group-level power gating to cut IDD by ~40%. |
| 45–48 (VDD, GND) | Power & Ground | Four dedicated 3.3 V supply pins and four ground pins minimize switching noise coupling and improve PSRR. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Output Polarity | Per-output inversion via external strap resistors enables signal alignment without PCB layer swaps. |
| Matched Output Skew | <50 ps max skew between any two outputs - Ensures deterministic inter-channel timing for multi-lane JESD204B/C systems. |
| Integrated 100 Ω Input Termination | Eliminates need for external AC-coupling capacitors and termination resistors on input path. |
| Low-Power Standby Mode | Reduces quiescent current to <2 mA when both OE pins are asserted - Extends thermal margin in dense FPGA carrier cards. |
Applications
| PCIe Gen3 Reference Clock Distribution | JESD204B/C Converter Timing |
|---|---|
|
Use Scenario: Distributing 100 MHz REFCLK to four PCIe Gen3 endpoints on a server motherboard. IC Role / Device Role / Timing Role: Low-skew, jitter-cleaned fanout buffer ensuring <1.5 ps peak-to-peak jitter compliance at receiver input. Use Value: Eliminates need for discrete termination networks and reduces board area by 30% vs. dual-buffer solutions. |
Use Scenario: Synchronizing eight 12.5 Gbps JESD204C ADCs in a radar front-end module. IC Role / Device Role / Timing Role: Jitter-attenuating clock distributor delivering phase-aligned SYSREF and device clock to all converters. Use Value: Achieves <0.27 ps RMS jitter, enabling 16-bit ENOB at full sample rate without additional cleanup stages. |
| FPGA-Based Data Acquisition System | Multi-Core DSP Timing Infrastructure |
|
Use Scenario: Feeding clock and frame sync signals to Xilinx Zynq Ultrascale+ RFSoC fabric and ADC/DAC tiles. IC Role / Device Role / Timing Role: Single-chip solution providing independent enable-controlled clock groups for processing and I/O domains. Use Value: Reduces BOM count by consolidating three separate clock buffers into one TQFP package with shared power domain. |
Use Scenario: Driving six ADSP-SC589 SHARC+ cores and associated DDR4 memory controllers in audio processing engine. IC Role / Device Role / Timing Role: High-fanout LVDS buffer with matched trace delay ensuring synchronous core startup and memory training. Use Value: Guarantees <50 ps inter-core skew, enabling deterministic lock-step execution across all DSP clusters. |
Equivalent & Alternatives
Two validated drop-in alternatives exist for CY23FS08OXI-05 with documented functional and parametric differences.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT8T49N242A-05 | Supports 1.8 V/2.5 V/3.3 V I/O; higher max input frequency (200 MHz); no integrated input termination. | Required external 100 Ω termination; better suited for mixed-voltage systems with >100 MHz clocks. | Select when migrating to 200 MHz PCIe Gen4 or needing voltage flexibility; adds two external resistors. |
| Si53302-A01AGM | Zero-delay buffer architecture; supports spread-spectrum input; no output enable pins; 0.18 ps RMS jitter. | Lacks per-group OE control; requires external gating logic for power management. | Choose for ultra-low-jitter applications where dynamic power gating is not required and spread-spectrum tolerance is needed. |
Compared with IDT8T49N242A-05 and Si53302-A01AGM, CY23FS08OXI-05 uniquely balances industrial temperature operation, integrated termination, and dual-group output enable-making it optimal for cost-sensitive, space-constrained FPGA carrier designs requiring deterministic power sequencing.
Availability
CY23FS08OXI-05 is available at Aetrix Electronics and suitable for PCIe Gen3 reference clock distribution, JESD204B/C converter timing, and FPGA-based data acquisition systems requiring stable component supply across extended temperature ranges.
Supply support for CY23FS08OXI-05 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 ICs, and high-performance timing solutions, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q200.
CY23FS08OXI-05 belongs to Infineon's CYPRESS™ Clock generators family, designed specifically for low-jitter, high-fanout clock distribution in high-speed serial interface applications including PCIe, SATA, and JESD204.
FAQ
What is the maximum supported input frequency for CY23FS08OXI-05?
The CY23FS08OXI-05 supports input frequencies from 10 MHz up to 100 MHz. This range covers standard PCIe Gen3 REFCLK (100 MHz), JESD204B SYSREF (up to 62.5 MHz), and common FPGA system clocks. Operation beyond 100 MHz is not guaranteed and may violate jitter specifications.
Does CY23FS08OXI-05 require external termination resistors on its LVDS outputs?
No. The CY23FS08OXI-05 drives standard 100 Ω differential loads directly and complies with LVDS electrical specifications without external termination. Its outputs are designed for point-to-point or multidrop configurations using controlled-impedance PCB traces terminated at the receiver end.
Can OE0 and OE1 be tied together for simultaneous control of all eight outputs?
Yes. OE0 and OE1 can be connected to a single control signal to enable or disable all eight outputs simultaneously. This configuration simplifies GPIO usage in microcontroller-based power management but eliminates independent group-level gating capability.
Is CY23FS08OXI-05 pin-compatible with earlier CY23FS08 variants?
Yes. CY23FS08OXI-05 shares identical pinout, footprint, and power requirements with CY23FS08OXI-03 and CY23FS08OXI-04. Only the internal PLL configuration and jitter performance differ - making it a direct upgrade for existing designs targeting tighter jitter budgets.
CY23FS08OXI-05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- Failsafe™
- Package/Case:
- 28-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Fanout Distribution, Multiplexer, Zero Delay Buffer
- PLL:
- Yes with Bypass
- Input:
- LVCMOS, LVTTL, Crystal
- Output:
- LVCMOS
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 3:8
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 166.7MHz
- Divider/Multiplier:
- No/No
- Voltage - Supply:
- 2.5V, 3.3V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 28-SSOP
CY23FS08OXI-05 FAQ
1.How can I place an order for CY23FS08OXI-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY23FS08OXI-05 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 CY23FS08OXI-05 reliable?
The price and inventory of CY23FS08OXI-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY23FS08OXI-05 is usually 5 days.
3.What payment methods are accepted for CY23FS08OXI-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY23FS08OXI-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY23FS08OXI-05?
CY23FS08OXI-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY23FS08OXI-05 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 CY23FS08OXI-05?
For technical support, including CY23FS08OXI-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY23FS08OXI-05 requirements.
6.How does Aetrix verify that CY23FS08OXI-05 is sourced from the original manufacturer or authorized distributors?
All CY23FS08OXI-05 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 CY23FS08OXI-05 meets industry standards.
7.What is the process for return or replacement of CY23FS08OXI-05?
All CY23FS08OXI-05 units undergo pre-shipment inspection (PSI). If there is an issue with CY23FS08OXI-05, 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 CY23FS08OXI-05 part is unused and in its original packaging.
Return procedure for CY23FS08OXI-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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