Infineon Technologies CY22180FSXC

Overview

CY22180FSXC from Cypress Semiconductor is a field-programmable, low-jitter clock generator IC with integrated PLL, 3.3V operation, 8-pin SOIC package, and programmable crystal load capacitance (12–60 pF). It delivers a single low-noise output (20–200 MHz) and optional buffered reference output (10–133 MHz), used in networking and datacom timing subsystems requiring stable, configurable clock synthesis.

For engineers reviewing the CY22180FSXC datasheet, CY22180FSXC pinout, CY22180FSXC application, or CY22180FSXC equivalent, this page provides verified technical context, exact pin functions, real-world jitter performance (≤60 ps pk-pk), programmable C_LOAD tuning, and field-reprogrammable flash-based configuration for rapid design iteration.

Technical Context

The CY22180FSXC integrates a single PLL with programmable feedback and output dividers to synthesize frequencies from either a 10–30 MHz crystal or 10–133 MHz external reference clock. Its on-die oscillator supports AT-cut fundamental-mode crystals and eliminates external load capacitors via digitally tunable 12–60 pF arrays on XIN/XOUT pins.

It offers dual control modes on Pin 3: active-low power-down (PD#) that disables PLL and oscillator with ≤40 μA standby current, or active-high output enable (OE) that places outputs in high-Z while preserving PLL lock. Output jitter is configuration-dependent, with best-case 60 ps pk-pk period jitter at key telecom/datacom frequencies (e.g., 125 MHz out from 25 MHz in).

Key Specifications

Pinout & Package

Package: 8-pin SOIC (150-mil width), surface-mount, RoHS-compliant, JEDEC MS-012 compliant.

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 CY22180FSXC uniquely balances field programmability, integrated crystal drive, and sub-60 ps jitter in an 8-pin SOIC-making it optimal for mid-volume, rapidly evolving designs where clock flexibility and board-level simplicity are prioritized over multi-output density or ultra-low jitter.

Availability

CY22180FSXC is available at Aetrix Electronics and suitable for networking switch timing, telecom line card clocking, and consumer set-top box SoC clocking requiring stable component supply, full traceability, and long-term lifecycle support.

Supply support for CY22180FSXC 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

Cypress Semiconductor (now part of Infineon Technologies) is a U.S.-based semiconductor company specializing in programmable system-on-chip (PSoC), memory, and timing solutions for embedded and industrial applications.

The CY22180 belongs to Cypress's CyberClocks™ family of programmable clock generators, designed specifically for cost-sensitive, high-reliability applications demanding flexible, low-jitter clock synthesis without external passive components.

FAQ

What programming tools are required to configure the CY22180FSXC?

The CY22180FSXC requires the Cypress CY3672-USB FTG programmer and CY3619 socket adapter for field programming. Configuration is performed using the web-based CyberClocks™ Online software, which generates JEDEC files compatible with the CY3672. Third-party programmers from BP Microsystems and HiLo Systems also support this device.

Can the CY22180FSXC operate with an external clock instead of a crystal?

Yes. The CY22180FSXC accepts a 10–133 MHz external clock applied to XIN (Pin 1), with XOUT (Pin 8) left floating. In this mode, internal load capacitance is set to minimum (12 pF), and the device uses the input clock as its reference source for PLL synthesis.

How does the PD# vs. OE function affect system power-up behavior?

When configured as PD#, asserting low powers down the PLL and oscillator, resulting in ~3.5 ms (crystal) or ~2 ms (external clock) wake-up time. As OE, outputs go high-Z instantly (<350 ns), but the PLL remains locked-enabling sub-microsecond output re-enablement without frequency reacquisition delay.

Is the CY22180FSXC pin-compatible with factory-programmed variants like CY22180SXC-xxx?

Yes. All CY22180 variants-including FSXC (field programmable) and SXC-xxx (factory programmed)-share identical 8-pin SOIC packaging, pinout, and electrical characteristics. Only the internal configuration differs; no PCB redesign is needed when transitioning from prototype (FSXC) to production (SXC-xxx).