Infineon Technologies CY22392ZXC-396T

Overview

CY22392ZXC-396T from Cypress Semiconductor is a three-PLL, flash-programmable clock generator in 16-pin TSSOP package, supporting up to six configurable outputs (CLKA–CLKE, XBUF) with frequencies up to 200 MHz, 3.3 V operation, and field-programmable nonvolatile configuration. It delivers precise frequency synthesis for multimedia, communications, and industrial timing systems using external crystal or driven clock inputs from 1 MHz to 166 MHz.

For engineers reviewing the CY22392ZXC-396T datasheet, CY22392ZXC-396T pinout, CY22392ZXC-396T application, or CY22392ZXC-396T equivalent, key selection criteria include PLL programmability (11-bit P / 8-bit Q per PLL), 7-bit post-dividers on CLKA–CLKD, glitch-free S0/S1/S2 frequency select, integrated linear crystal load capacitors (6–30 pF), and low-jitter output architecture optimized for A/D converters and high-end consumer electronics.

Technical Context

The CY22392ZXC-396T implements 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 signals to four 7-bit post-dividers (CLKA–CLKD) or fixed /2-/3-/4 divider on CLKE. The reference path includes programmable crystal drive strength and on-die linear load capacitors (6–30 pF, 0.375 pF step).

Frequency selection is controlled via three LVTTL inputs (S0/S1/S2), enabling eight glitch-free configurations for PLL1 output and CLKA/CLKB divider register selection. Power management includes dual-mode SHUTDOWN/OE (tristate + full shutdown) and configurable S2/SUSPEND for selective PLL/output disable without relock delay.

Key Specifications

Pinout & Package

Package: 16-pin TSSOP (4.4 mm × 5.0 mm, 0.65 mm pitch), RoHS-compliant, thermal performance θ_JA = 115 °C/W.

Key Features

Applications

Equivalent & Alternatives

Cypress CY22392ZXC-396T has two verified functional alternatives with documented differences in architecture, programmability, and support tooling.

Compared with Si5338A-D-GM and CY22393ZXC-396T, the CY22392ZXC-396T uniquely balances field-programmable flash, hardware-selectable frequency modes, and industrial-grade temperature stability - making it optimal for cost-sensitive, medium-jitter applications requiring rapid design iteration and long-term supply continuity.

Availability

CY22392ZXC-396T is available at Aetrix Electronics and suitable for audio/video processing systems, industrial PLC timing modules, and high-speed data acquisition systems requiring stable component supply, long-lifecycle availability, and consistent parametric performance across commercial and industrial temperature grades.

Supply support for CY22392ZXC-396T 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 industrial, automotive, and consumer markets.

The CY22392 product line was designed as a flash-programmable, multi-PLL clock generator family targeting flexible, low-cost timing solutions for mixed-signal systems where field configurability, temperature stability, and pin-compatible upgrades are critical.

FAQ

What is the maximum supported crystal frequency for CY22392ZXC-396T?

The device supports fundamental-mode crystals from 8 MHz to 30 MHz. Operation outside this range is not guaranteed due to oscillator loop gain and phase margin limitations. For frequencies above 30 MHz, a driven clock input (1–166 MHz) must be used instead, with XTALOUT left floating and internal load capacitors bypassed.

Can CLKA and CLKB operate at different frequencies simultaneously?

Yes - CLKA and CLKB each route from the crosspoint switch to independent 7-bit post-dividers. Although their divider register selection is tied (both use Register 0 or Register 1 based on S0–S2), the actual programmed values in those registers may differ, allowing distinct output frequencies. The crosspoint switch also permits routing different sources (e.g., PLL1 to CLKA, PLL2 to CLKB) for full independence.

Does CY22392ZXC-396T require external configuration memory?

No - it contains on-chip flash memory for storing configuration data. Once programmed (via CY3672 kit or third-party programmer), the device retains its settings indefinitely (>10 years at 125°C junction temperature) and boots automatically on power-up without external EEPROM or configuration pins.

How does the S2/SUSPEND pin function in suspend mode versus frequency select mode?

When configured as suspend control (default), pulling S2 low disables selected PLLs and/or outputs without affecting others' lock state - reducing power while preserving timing integrity. When configured as frequency select (via register bit), S2 becomes the MSB of the 3-bit S0–S2 group, enabling eight total frequency modes. Mode selection is set during programming and cannot be changed dynamically.