Infineon Technologies CY27410LTXI-013T

Overview

CY27410LTXI-013T from Infineon Technologies (formerly Cypress) is a 4-PLL spread-spectrum clock generator with zero-ppm synthesis error, supporting PCIe 3.0, USB 3.0, and 10GbE timing requirements. It delivers up to 12 configurable outputs (8 differential + 4 single-ended), RMS phase jitter ≤1 ps (12 kHz–20 MHz), and VCXO tuning ±120 ppm via VIN pin - used in high-speed serial interface clocking for industrial embedded systems.

For engineers reviewing the CY27410LTXI-013T datasheet, CY27410LTXI-013T pinout, CY27410LTXI-013T application, or CY27410LTXI-013T equivalent, key selection criteria include differential output skew ≤100 ps per bank, I²C programmability (400 kb/s, address 0x69), dual-bank architecture (Bank 1: OUT11–OUT16; Bank 2: OUT21–OUT26), and support for crystal (8–48 MHz), LVCMOS (8–250 MHz), or differential (8–700 MHz) reference inputs.

Technical Context

The CY27410LTXI-013T integrates four independent fractional-N PLLs, each feeding four synchronized dividers to generate phase-aligned outputs with glitch-free transitions. Each PLL supports VCXO mode (±120 ppm, 0.23 ppm steps) and spread-spectrum (0.1–5% down/center spread, Logic SS or Lexmark profile).

Input flexibility includes XIN/XOUT crystal interface (8–48 MHz), two differential/single-ended reference inputs (IN1/IN2, up to 700 MHz), and VIN-controlled VCXO. Output banks are independently configurable: Bank 1 (OUT11–OUT16) and Bank 2 (OUT21–OUT26) support mixed LVDS/LVPECL/HCSL/CML/LVCMOS signaling with programmable delay (0–4 × VCO/2 cycles) and ZDB/NZDB modes.

Key Specifications

Pinout & Package

Package: 48-pin QFN (7 mm × 7 mm × 1.0 mm), thermally enhanced, RoHS-compliant, with exposed thermal pad (EPAD) connected to GND.

Key Features

Applications

Equivalent & Alternatives

Two verified alternatives exist for CY27410LTXI-013T in industrial clock generation applications:

Compared with Si5341-B-GM and ICS8430I-01LG, CY27410LTXI-013T uniquely balances programmability (I²C + FS pins), VCXO tuning, spread-spectrum, and dual-bank isolation - making it optimal for cost-sensitive industrial systems requiring field-upgradable timing with A/V or PCIe compliance.

Availability

CY27410LTXI-013T is available at Aetrix Electronics and suitable for PCIe Gen3 clock distribution, USB 3.0 host controller timing, and digital TV audio/video synchronization requiring stable component supply across extended temperature ranges (-40°C to +85°C).

Supply support for CY27410LTXI-013T 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.

CY27410 belongs to Infineon's legacy Cypress clock generation portfolio, designed specifically for high-integration, low-EMI timing in consumer electronics, industrial gateways, and entry-level networking infrastructure - emphasizing configurability, spread-spectrum EMI reduction, and robust operation across wide temperature ranges.

FAQ

What is the maximum differential output frequency supported by CY27410LTXI-013T?

The CY27410LTXI-013T supports differential output frequencies up to 700 MHz using LVDS, LVPECL, HCSL, or CML signaling. This capability is validated per AC Output Specifications in datasheet Rev. *M (page 16), where f_OUT(DIFF) = 25–700 MHz is specified under VDDIO = 2.5 V or 3.3 V, with guaranteed rise/fall times and jitter compliance at 700 MHz.

Does CY27410LTXI-013T require external configuration memory?

No. The CY27410LTXI-013T contains on-chip nonvolatile memory storing eight full configuration register sets. These can be programmed via I²C and retained across power cycles, eliminating the need for external EEPROM or flash. Configuration is retained even after full power-down, enabling true "plug-and-play" deployment of blank devices.

Can CY27410LTXI-013T generate a 32.768 kHz clock for RTC applications?

Yes. One LVCMOS output (configurable as OUT15 or OUT25) supports frequencies as low as 1 kHz, including standard 32.768 kHz. This is explicitly listed in the "Output frequencies" feature table (page 1) and confirmed in Functional Overview (page 3), where it states "1 kHz to 8 MHz for one LVCMOS output" - intended for real-time clock or low-power wake-up signal generation.

How is zero-delay buffer (ZDB) functionality implemented on CY27410LTXI-013T?

ZDB is implemented by routing one output (e.g., OUT11) back to IN2 as feedback while configuring PLL1 in integer-N mode. The internal divider in the feedback path ensures output frequency equals input frequency (or integer multiple), achieving true zero-phase delay. This is detailed in Figure 10 and "Zero-Delay Buffer Functionality" section (page 6), and requires no external components beyond proper PCB routing and termination.