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Home > Products > Integrated Circuits (ICs) > Clock/Timing > Clock Generators, PLLs, Frequency Synthesizers

Infineon Technologies CY27410LTXI-008T

Name: CY27410LTXI-008T
Brand: Infineon Technologies
SKU: CY27410LTXI-008T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY27410LTXI-008T

Manufacturer:: Infineon Technologies

Category:: Clock Generators, PLLs, Frequency Synthesizers

Package:: 48-VFQFN Exposed Pad

Datasheet:: CY27410LTXI-008T.pdf

Description:: IC SS CLOCK GENERATOR 48QFN

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Product details

Overview

CY27410LTXI-008T from Infineon Technologies (formerly Cypress) is a 4-PLL spread-spectrum clock generator in a 48-pin QFN (7 × 7 × 1.0 mm) package, supporting crystal (8–48 MHz), single-ended LVCMOS (8–250 MHz), and differential (8–700 MHz) reference inputs. It delivers up to 12 configurable outputs - including LVDS/LVPECL/HCSL/CML (25–700 MHz) and LVCMOS (3 MHz–250 MHz, plus 1 kHz–8 MHz low-freq) - with ≤1-ps RMS phase jitter (12 kHz–20 MHz offset), PCIe 1.0/2.0/3.0 and USB 3.0 compliance, and I²C programmability for embedded timing systems.

For engineers reviewing the CY27410LTXI-008T datasheet, CY27410LTXI-008T pinout, CY27410LTXI-008T application, or CY27410LTXI-008T equivalent, key selection criteria include its four independent fractional-N PLLs with VCXO (±120 ppm), dual-bank output architecture (6 outputs per bank), spread-spectrum profiles (0.1%–5%, down/center), and support for zero-delay buffer (ZDB) and non-zero delay buffer (NZDB) modes in industrial-grade operation.

Technical Context

The CY27410LTXI-008T implements four identical fractional-N PLLs, each feeding four synchronized dividers to generate phase-aligned outputs with ≤100-ps skew within a bank. Each PLL supports VCXO control via VIN (±120 ppm tuning at 0.23 ppm steps) and programmable spread-spectrum modulation (Logic SS or Lexmark profile).

Input flexibility includes crystal (XIN/XOUT), dual differential/single-ended references (IN1/IN2), and feedback routing for ZDB/NZDB operation. Output configuration spans two banks: Bank 1 (OUT11–OUT16) and Bank 2 (OUT21–OUT26), with eight differential pairs and twelve LVCMOS outputs supported across mixed logic standards (LVDS, LVPECL, HCSL, CML, LVCMOS).

Key Specifications

Parameter	Value and Actual Design Meaning
PLL Count	Four independent fractional-N PLLs enabling simultaneous synthesis of multiple unrelated frequencies with zero-ppm error.
RMS Phase Jitter	≤1 ps (12 kHz–20 MHz offset), meeting PCIe 3.0 and USB 3.0 jitter requirements for high-speed serial links.
Output Count & Types	Up to 12 outputs: 8 differential pairs (HCSL/LVPECL/CML/LVDS) + 12 LVCMOS; banked (6 per bank) with inter-bank isolation.
Spread Spectrum	Configurable down-spread or center-spread (0.1%–5% in 0.1% steps), reducing EMI in dense PCB layouts.
VCXO Range	±120 ppm tuning resolution (0.23 ppm steps) via analog VIN input, enabling audio/video clock synchronization.
Supply Voltages	1.8 V, 2.5 V, and 3.3 V core/io supplies - enabling interoperability with mixed-voltage SoC interfaces.
I²C Interface	Fast-mode (400 kb/s), 7-bit address (default 0x69), onboard volatile/nonvolatile register programming for field reconfiguration.

Pinout & Package

Package: 48-pin QFN (7 mm × 7 mm × 1.0 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad (EP). RoHS-compliant, industrial temperature range (–40°C to +85°C).

Pin/Terminal	Circuit Role	Design Meaning
XIN / XOUT	Crystal oscillator interface	Supports 8–48 MHz fundamental-mode crystals; internal oscillator circuit eliminates need for external load caps.
IN1P / IN1N / IN2P / IN2N	Differential reference inputs	Accept LVPECL/LVDS/HCSL/CML; AC-coupled; IN2 supports feedback for ZDB mode.
VIN	VCXO control voltage input	Analog input (0.3–1.2 V) directly modulates PLL1 fractional divider for ±120 ppm frequency tuning.
FS0 / FS1 / FS2	Frequency select control	Three-pin binary encoding selects among eight preloaded register sets for on-the-fly output frequency switching.
SCLK / SDAT	I²C serial interface	Standard bidirectional I²C bus (400 kb/s) for full register read/write, flash programming, and protection configuration.
OUT11P–OUT14N / OUT21P–OUT24N	Differential clock outputs	Configurable as LVDS/LVPECL/HCSL/CML; ≤100-ps skew within bank; drive point-to-point or multi-drop loads.
OUT15 / OUT16 / OUT25 / OUT26	LVCMOS clock outputs	Single-ended, rail-to-rail outputs; support 3 MHz–250 MHz; one output extends to 1 kHz–8 MHz for RTC/low-freq reference.

Key Features

Feature	Design Value
Four fractional-N PLLs with synchronized dividers	Enables generation of up to 16 distinct phase-aligned frequencies from one device, minimizing board-level clock fanout complexity.
Zero-delay buffer (ZDB) with feedback routing	Allows one output to be fed back to IN2 for integer-N PLL lock, eliminating propagation delay between source and buffered clock domains.
Programmable early/late phase shift (0–4 × VCO/2 cycles)	Provides fine-grained timing alignment for source-synchronous interfaces like DDR or PCIe SerDes clock forwarding.
On-chip NV memory with I²C programming	Stores eight complete configuration profiles; enables blank-device deployment and field-updatable timing schemes without reflashing hardware.
Dual-bank output architecture with independent power domains	VDDIO_D1/VDDIO_S1 and VDDIO_D2/VDDIO_S2 allow independent voltage scaling per bank, supporting mixed-interface systems (e.g., 1.8 V LVDS + 3.3 V LVCMOS).

Applications

PCIe Gen1/2/3 Clocking

USB 3.0 Host Timing

Use Scenario: Providing reference clocks to PCIe root complex and endpoint devices on server motherboards and add-in cards.

IC Role / Device Role / Timing Role: Primary spread-spectrum clock generator delivering HCSL-compatible 100 MHz and 25 MHz clocks with <1 ps jitter and EMI reduction.

Use Value: Meets PCIe 3.0 specification jitter limits while lowering system-level radiated emissions through programmable down-spread modulation.

Use Scenario: Generating synchronous 125 MHz and 25 MHz clocks for USB 3.0 host controllers and PHYs in embedded computing platforms.

IC Role / Device Role / Timing Role: Dual-bank clock source supplying LVDS 125 MHz to controller and LVCMOS 25 MHz to auxiliary logic with matched skew.

Use Value: Eliminates need for discrete clock buffers by integrating ZDB functionality and level translation across voltage domains.

Industrial Video Processing

Network Switch Reference Timing

Use Scenario: Synchronizing audio and video clock domains in digital signage and broadcast encoders using 27 MHz VCXO reference.

IC Role / Device Role / Timing Role: VCXO-based clock synthesizer generating 74.25 MHz (video), 36.864 MHz (audio), and 32.768 kHz (RTC) from single 27 MHz input.

Use Value: Achieves sub-ppm frequency accuracy and tight phase coherence between audio/video streams via cascaded PLL architecture.

Use Scenario: Delivering low-jitter 156.25 MHz and 125 MHz clocks to 1/10-GbE PHYs and switch fabric ASICs in managed Ethernet switches.

IC Role / Device Role / Timing Role: High-stability clock generator supporting both SFI and XAUI interfaces with differential LVDS/LVPECL outputs.

Use Value: Enables deterministic latency and BER compliance in multi-port switching applications through bank-isolated, low-skew outputs.

Equivalent & Alternatives

Two verified alternatives exist for design flexibility and supply continuity:

Alternative Part	Technical Difference	Application Difference	Selection Advice
Si5341-B-GM	12-output, 4-input clock generator with higher integration (integrated LDOs, wider frequency range up to 1 GHz), but requires external EEPROM and lacks native VCXO pin.	Better suited for telecom infrastructure requiring ultra-low jitter (<80 fs) and multi-protocol support (OTN, CPRI); not drop-in for VCXO-critical AV systems.	Select when ultra-low jitter and >700 MHz outputs are required; avoid if VCXO analog tuning or I²C-only programming is mandatory.
ICS8430I-01T	4-output, 2-PLL clock generator with fixed spread-spectrum and no I²C; simpler architecture, lower cost, no VCXO or frequency-select pins.	Targeted at cost-sensitive consumer electronics (e.g., set-top boxes) where only basic PCIe/USB clocking is needed without dynamic reconfiguration.	Select for simplified BOM and reduced firmware overhead; avoid if >4 outputs, VCXO, or on-the-fly frequency switching is required.

Compared with Si5341-B-GM and ICS8430I-01T, the CY27410LTXI-008T uniquely balances programmability (I²C + FS pins), VCXO support, and dual-bank flexibility - making it optimal for industrial AV and mid-tier networking where field-upgradable timing and analog tuning are essential.

Availability

CY27410LTXI-008T is available at Aetrix Electronics and suitable for PCIe Gen3 add-in cards, USB 3.0 embedded host designs, and industrial video processing systems requiring stable component supply, long-term lifecycle assurance, and industrial temperature grade performance.

Supply support for CY27410LTXI-008T 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, sensing, connectivity, and security solutions for automotive, industrial, and IoT markets.

The CY27410 belongs to Infineon's legacy Cypress clock generation portfolio, designed specifically for cost-effective, programmable timing in consumer, industrial, and low-end networking equipment - emphasizing ease of configuration, EMI reduction, and mixed-signal interface compatibility.

FAQ

What is the maximum differential output frequency supported by CY27410LTXI-008T?

The CY27410LTXI-008T supports differential outputs (LVDS, LVPECL, HCSL, CML) up to 700 MHz. This is confirmed in the datasheet's "Output Frequencies" section and validated by AC output specifications (Table 16, Rev. *M), where LVDS/LVPECL test conditions extend to 700 MHz with specified jitter and rise/fall time compliance.

Does CY27410LTXI-008T support spread-spectrum clocking for EMI reduction?

Yes - the device supports programmable spread-spectrum clocking with Logic SS or Lexmark profiles, adjustable from 0.1% to 5% in 0.1% increments, and selectable down-spread or center-spread modes. This feature is implemented per-PLL and verified in functional testing per JEDEC JESD65B for EMI suppression in PCIe and USB applications.

Can CY27410LTXI-008T operate as a zero-delay buffer?

Yes - by routing one output (e.g., OUT11) back to IN2 as feedback and configuring PLL1 in integer-N mode, the device functions as a zero-delay buffer (ZDB). The datasheet confirms this in Section "Zero-Delay Buffer Functionality" (Page 6), including support for frequency multiplication via R1/R2 divider tuning.

What is the role of the FS0/FS1/FS2 pins on CY27410LTXI-008T?

The FS0, FS1, and FS2 pins form a 3-bit binary input that selects among eight preprogrammed configuration register sets stored in nonvolatile memory. This enables real-time, hardware-controlled switching between different output frequencies or formats without I²C intervention - critical for dynamic power management or multi-mode system operation.

CY27410LTXI-008T Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 48-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Type:: Spread Spectrum Clock Generator

PLL:: Yes with Bypass

Input:: LVCMOS, Crystal

Output:: CML, HCSL, LVCMOS, LVDS, LVPECL

Number of Circuits:: 1

Ratio - Input:Output:: 3:12

Differential - Input:Output:: Yes/Yes

Frequency - Max:: 700MHz

Divider/Multiplier:: Yes/No

Voltage - Supply:: 1.71V ~ 3.46V

Operating Temperature:: -40°C ~ 85°C

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 48-QFN (7x7)

CY27410LTXI-008T FAQ

1.How can I place an order for CY27410LTXI-008T through Aetrix?

Please submit a Request for Quotation (RFQ) for CY27410LTXI-008T 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 CY27410LTXI-008T reliable?

The price and inventory of CY27410LTXI-008T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY27410LTXI-008T is usually 5 days.

3.What payment methods are accepted for CY27410LTXI-008T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY27410LTXI-008T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY27410LTXI-008T?

CY27410LTXI-008T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY27410LTXI-008T 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 CY27410LTXI-008T?

For technical support, including CY27410LTXI-008T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY27410LTXI-008T requirements.

6.How does Aetrix verify that CY27410LTXI-008T is sourced from the original manufacturer or authorized distributors?

All CY27410LTXI-008T 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 CY27410LTXI-008T meets industry standards.

7.What is the process for return or replacement of CY27410LTXI-008T?

All CY27410LTXI-008T units undergo pre-shipment inspection (PSI). If there is an issue with CY27410LTXI-008T, 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 CY27410LTXI-008T part is unused and in its original packaging.

Return procedure for CY27410LTXI-008T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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