Infineon Technologies CY22150KFZXCT

Overview

CY22150KFZXCT from Infineon Technologies (formerly Cypress) is a single-PLL, flash- and I²C-programmable clock generator delivering six configurable outputs up to 200 MHz at 3.3 V or 166.6 MHz at 2.5 V. It accepts 8–30 MHz crystal or 1–133 MHz driven reference inputs, features low-jitter PLL synthesis, and supports industrial temperature operation (–40°C to +85°C). Used in telecom line cards and industrial control backplanes for synchronous timing distribution.

For engineers reviewing the CY22150KFZXCT datasheet, CY22150KFZXCT pinout, CY22150KFZXCT application, or CY22150KFZXCT equivalent, this page provides verified package mapping (16-pin TSSOP), confirmed I²C slave address (0x69), validated output configuration flexibility (seven per-output options including bypass), and real-world jitter performance context (typical 75 ps RMS jitter over 12 kHz–20 MHz).

Technical Context

The CY22150KFZXCT implements a single-loop PLL with programmable P/Q dividers and dual post-divider banks (DIV1N/DIV2N), enabling independent frequency synthesis for two output groups. Its crosspoint switch matrix routes either VCO-derived or direct reference signals to each of six outputs.

It supports volatile I²C programming (address 0x69) for runtime reconfiguration and nonvolatile flash programming for persistent settings. Input crystal drive gain and load capacitance are digitally adjustable via registers 12H and 13H, ensuring robust oscillation across diverse crystal ESR and CL specifications.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (4.4 mm × 5.0 mm, 0.65 mm pitch), RoHS-compliant, JEDEC MO-153 compliant.

Key Features

Applications

Equivalent & Alternatives

Two verified alternatives exist with documented functional overlap and key trade-offs:

Compared with Si5338A-D-GM and ICS8430I-01, the CY22150KFZXCT uniquely balances field programmability, crystal integration, six-output flexibility, and industrial temperature support - making it optimal for mid-volume industrial and telecom designs requiring post-production timing adjustments.

Availability

CY22150KFZXCT is available at Aetrix Electronics and suitable for telecom infrastructure, industrial automation, and network test equipment requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.

Supply support for CY22150KFZXCT 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 acquired Cypress Semiconductor in 2020 and maintains full product continuity, documentation, and support for the former Cypress timing portfolio.

The CY22150 belongs to Infineon's general-purpose programmable clock generator family, designed specifically for cost-sensitive, multi-frequency timing applications in industrial and communications equipment where field configurability and crystal integration are essential.

FAQ

What is the default state of CY22150KFZXCT after power-up?

At power-on, unprogrammed CY22150KFZXCT devices enter a default state where all outputs are three-stated, the crystal oscillator is active, and internal registers retain factory-default values. No clock outputs are enabled until programmed via I²C or flash. This prevents spurious clocking during system boot.

Can CY22150KFZXCT generate non-integer frequency ratios from its reference input?

Yes - using the P/Q divider architecture (P up to 511, Q up to 129), the CY22150KFZXCT synthesizes fractional-N frequencies with resolution down to 0.001 ppm. For example, a 25 MHz crystal can generate 133.333 MHz (25 × 16/3) by setting P=16, Q=3, and applying appropriate post-division.

Is external programming hardware required to configure CY22150KFZXCT in production?

No - production units can be pre-programmed using third-party programmers (e.g., BP Microsystems™ or HiLo Systems™) or Infineon-authorized distributors. In-system I²C programming also enables field updates without removing the device, supporting firmware-driven clock reconfiguration.

How does the programmable crystal load capacitance affect startup reliability?

The 8-bit CapLoad register (13H) adjusts on-die load capacitance from 6 pF to 30 pF in 0.09375 pF steps. Matching this to the crystal's specified CL (e.g., 12 pF or 18 pF) ensures reliable oscillation startup across temperature and voltage - critical for systems requiring guaranteed boot-time clock availability.