Infineon Technologies CY22150KFZXI

Overview

CY22150KFZXI from Infineon Technologies (formerly Cypress Semiconductor) is a single-PLL, flash- and I²C-programmable clock generator delivering six configurable outputs with industrial temperature range (–40°C to +85°C), 3.3 V supply, and 2.5 V output option. It accepts 8–30 MHz crystal or 1–133 MHz driven reference input and generates outputs up to 166.6 MHz (3.3 V) or 150 MHz (2.5 V). Used in industrial networking and telecom timing subsystems requiring field-reprogrammable frequency synthesis.

For engineers reviewing the CY22150KFZXI datasheet, CY22150KFZXI pinout, CY22150KFZXI application, or CY22150KFZXI equivalent, this page provides verified technical context, validated pin functions, confirmed industrial-grade operating conditions, real-world application mappings, and traceable alternative options for clock tree design and BOM continuity planning.

Technical Context

The CY22150KFZXI implements a single analog PLL with programmable P/Q dividers and dual post-divider banks (DIV1N/DIV2N), enabling precise integer and fractional frequency synthesis from a single reference. Its crosspoint switch matrix routes either VCO-derived or direct REF signals to any of six outputs.

It supports volatile I²C programming (address 0x69) for in-system reconfiguration and nonvolatile flash programming for persistent startup settings. Input crystal oscillator gain and load capacitance are digitally tunable via registers 12H and 13H, ensuring robust oscillation across diverse crystal vendors and board parasitics.

Key Specifications

Pinout & Package

16-pin TSSOP (4.4 mm × 5.0 mm, 0.65 mm pitch), RoHS-compliant, surface-mount package optimized for high-density industrial PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar clock generator applications.

Compared with Si5338A-D-GM and ICS8430I-01T, the CY22150KFZXI uniquely combines industrial temperature rating, on-chip flash storage, I²C runtime control, and dual-voltage outputs - making it optimal for field-deployed equipment requiring long-term BOM stability and post-deployment clock tuning.

Availability

CY22150KFZXI is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, network switching, and medical imaging systems requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for CY22150KFZXI 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 industrial, automotive, and communications markets.

The CY22150 belongs to Infineon's legacy clock generation portfolio (originally developed by Cypress), designed specifically for general-purpose, field-programmable clock synthesis in space-constrained industrial and telecom applications where flexibility and reliability are critical.

FAQ

What is the default state of CY22150KFZXI after power-up?

At power-on, an unprogrammed CY22150KFZXI enters a default state where all outputs are three-stated, the crystal oscillator circuit is active, and internal registers retain factory-default values. If previously flash-programmed, it boots with those stored settings. I²C registers must be reloaded after each power cycle unless shadowed by flash configuration.

Can CY22150KFZXI generate non-integer multiples of the reference frequency?

Yes - through its P/Q divider architecture and DIV1N/DIV2N post-dividers, the CY22150KFZXI supports fractional frequency synthesis. For example, with a 25 MHz crystal, it can generate 133.33 MHz (P=16, Q=3, post-divider = /1) or 74.25 MHz (P=89, Q=3, post-divider = /1), provided the resulting VCO frequency stays within specification (150–300 MHz).

How is crystal load capacitance configured on CY22150KFZXI?

Crystal load capacitance is set via 8-bit register 13H (CapLoad), which controls on-die capacitors. The effective load is calculated as CapLoad = (CL – CBRD – 6 pF)/0.09375 pF, where CL is the crystal's specified load capacitance and CBRD is board trace capacitance (default 2 pF in CyClocksRT). This eliminates external load caps and ensures consistent startup across varying board designs.

Does CY22150KFZXI support spread-spectrum clocking (SSC)?

No - the CY22150KFZXI does not implement spread-spectrum modulation. Its PLL is optimized for low-phase-noise, fixed-frequency synthesis. For EMI reduction, system-level spread-spectrum techniques or dedicated SSC-capable clock generators (e.g., Si534x series) must be used instead.