Infineon Technologies CY22392FC

Overview

CY22392FC from Cypress Semiconductor is a three-PLL, flash-programmable clock generator in 16-pin TSSOP packaging, supporting up to six configurable outputs (CLKA–CLKE, XBUF) with frequencies up to 200 MHz (commercial) and 166 MHz (industrial). It features ultra-wide divide counters (11-bit P, 8-bit Q per PLL), 7-bit post-dividers on four outputs, and programmable crystal load capacitance (6–30 pF in 0.375-pF steps). Used in high-end multimedia and communications systems requiring multi-frequency synthesis from a single crystal or driven reference.

For engineers reviewing the CY22392FC datasheet, CY22392FC pinout, CY22392FC application, or CY22392FC equivalent, key selection criteria include field-programmability via CyberClocksRT™, glitch-free 3-bit frequency select (S0/S1/S2), shutdown/suspend power management, and jitter-optimized output phase alignment for A/D converter timing and industrial control synchronization.

Technical Context

The CY22392FC integrates three independent, fully programmable PLLs-each with an 11-bit feedback divider (P) and 8-bit reference divider (Q)-feeding a 4×4 crosspoint switch that routes reference, PLL1, PLL2, or PLL3 to four 7-bit post-divided outputs (CLKA–CLKD). CLKE derives directly from PLL1 with fixed /2, /3, or /4 division, while XBUF provides buffered reference.

Crystal drive strength and on-die linear load capacitors (6–30 pF, 6-bit programmable) enable stable oscillation across diverse crystals; external LVTTL inputs S0/S1/S2 support eight glitch-free frequency configurations by selecting between dual register sets for CLKA/CLKB dividers and PLL1 P/Q values.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (4.4 mm × 5.0 mm, 0.65 mm pitch), RoHS-compliant, surface-mountable with standard reflow profile.

Key Features

Applications

Equivalent & Alternatives

Two verified alternatives provide comparable multi-PLL clock generation with trade-offs in programmability, package, or feature set.

Compared with Si5338A-B-GM and ICS8430I-01T, the CY22392FC uniquely combines flash-based field programmability, on-die crystal load tuning, and glitch-free 3-bit frequency select-making it optimal for prototyping, multi-customer variants, and applications demanding absolute frequency accuracy across temperature and aging.

Availability

CY22392FC is available at Aetrix Electronics and suitable for high-speed data acquisition, industrial PLC timing, video processing pipelines, and communications baseband systems requiring stable component supply, long-term lifecycle assurance, and field-programmable flexibility.

Supply support for CY22392FC 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 solutions, USB controllers, and precision timing devices.

The CY22392FC belongs to Cypress's CyberClocks™ family of flash-programmable clock generators, designed specifically for applications requiring customizable multi-frequency synthesis, low-jitter performance, and robust crystal interface compatibility in industrial and communications infrastructure.

FAQ

What is the maximum crystal frequency supported by CY22392FC?

The CY22392FC supports crystal reference inputs from 8 MHz to 30 MHz. For driven clock inputs (external oscillator), the device accepts frequencies up to 166 MHz in industrial grade and 166 MHz in commercial grade, provided the input duty cycle remains between 40% and 60% at VDD/2. XTALOUT must be left floating when using a driven clock source.

How does the S2/SUSPEND pin differ from SHUTDOWN/OE?

SHUTDOWN/OE is a global control that places all outputs in high-impedance state and powers down all PLLs, the crystal oscillator, and internal logic when pulled low. S2/SUSPEND is configurable: it can be set to suspend any combination of individual PLLs and/or outputs-e.g., disable PLL2 and CLKB while keeping PLL1, CLKA, and XBUF active-enabling fine-grained power optimization without full system reset.

Can CY22392FC generate non-integer frequency ratios between outputs?

Yes. Each of the three PLLs has independent 11-bit P and 8-bit Q dividers, enabling arbitrary rational frequency synthesis (e.g., f_out = f_ref × P/Q). Combined with the 4×4 crosspoint switch and 7-bit post-dividers on CLKA–CLKD, the device supports non-integer ratios such as 125 MHz and 133.33 MHz from a 25 MHz crystal-critical for mixed-standard video or multi-protocol communication systems.

Is CY22392FC pin-compatible with earlier CY2292 devices?

No. While CY22392FC is a functional upgrade to the CY2292 family, it uses a different pinout: CY22392FC is in 16-pin TSSOP with dedicated AVDD (Pin 14) and AGND (Pin 3), whereas CY2292 uses 16-pin SOIC with shared VDD/GND pins and no separate analog supply. Board redesign and layout revision are required for migration.