Infineon Technologies CY22800FXC-023A

Overview

CY22800FXC-023A from Cypress Semiconductor is a field-programmable, VCXO-enabled universal clock generator configured as an MPEG-2 clock source for digital television and set-top box systems. It accepts a 13.5 MHz crystal input and delivers three synchronized outputs: CLKA = 27 MHz, CLKB = 54 MHz, and CLKC = 27 MHz, operating at 3.3 V with industrial-grade temperature support (–40°C to +85°C) and integrated PLL-based synthesis.

For engineers reviewing the CY22800FXC-023A datasheet, CY22800FXC-023A pinout, CY22800FXC-023A application, or CY22800FXC-023A equivalent, this device serves as a reprogrammable, single-chip timing solution for broadcast video timing compliance, EMI reduction via spread spectrum (disabled in -023A), and precise VCXO-based frequency tracking in consumer STB/DTV platforms.

Technical Context

The CY22800FXC-023A implements a proprietary integer-N PLL architecture with VCXO control loop, enabling dynamic output frequency alignment to external references. Its VCXO analog tuning input (FS0/VCXO pin) supports ±100 ppm pull range over 0–3.3 V, allowing real-time compensation for crystal aging or thermal drift in MPEG-2 transport stream timing paths.

All three outputs-CLKA, CLKB, and CLKC-are derived from the same PLL core with deterministic phase relationships and low-jitter (<150 ps RMS) performance. The device uses internal divider chains and output buffers optimized for 50 Ω transmission lines, supporting simultaneous 27/54/27 MHz generation without external logic or fanout buffers.

Key Specifications

Pinout & Package

8-pin SOIC package (3.9 mm × 4.9 mm, 1.27 mm pitch), surface-mount, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar MPEG-2 clock generation applications.

Compared with ICS8430AYLFT, CY22800FXC-023A offers field-reprogrammability and VCXO tracking critical for production calibration and thermal compensation; versus Si5338A-B-GM, it provides simpler plug-and-play deployment with zero firmware overhead and guaranteed MPEG-2 timing compliance out-of-box.

Availability

CY22800FXC-023A is available at Aetrix Electronics and suitable for digital television receivers, set-top box mainboards, and professional broadcast encoders requiring stable component supply, long-term lifecycle support, and guaranteed industrial temperature qualification.

Supply support for CY22800FXC-023A 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 fabless semiconductor company specializing in high-performance timing, memory, and programmable logic solutions for consumer, industrial, and communications markets.

The CY22800 product line was designed specifically for flexible, single-chip clock synthesis in broadcast video and digital entertainment systems, emphasizing reprogrammability, VCXO precision, and EMI-aware timing architectures.

FAQ

What is the maximum allowable load capacitance on the XIN pin for CY22800FXC-023A?

The XIN pin is optimized for fundamental-mode crystals with load capacitance between 12 pF and 18 pF. Exceeding 18 pF may cause startup failure or frequency inaccuracy beyond ±50 ppm. Cypress specifies internal capacitors totaling 12 pF, so external load caps should be selected to achieve net 12–18 pF per crystal manufacturer's recommendation.

Can CY22800FXC-023A be reprogrammed in-system after soldering to the PCB?

Yes - the device supports up to 100 in-circuit programming cycles using the CY36800 USB programmer dongle and Cypress ClockWizard software. Reprogramming requires only VDD, GND, and the FS0/VCXO pin (used as serial data input during programming), with no additional pins or debug interfaces needed.

Does CY22800FXC-023A support differential output signaling such as LVDS or HCSL?

No - all outputs (CLKA, CLKB, CLKC) are single-ended 3.3 V LVCMOS with rail-to-rail swing and 10 mA drive strength. For differential signaling, external LVCMOS-to-LVDS translators (e.g., SN65LVDS1) are required, though most DTV/STB SoCs accept LVCMOS inputs directly.

Is the VCXO tuning voltage (FS0/VCXO pin) ratiometric to VDD, or does it require a stable external reference?

The VCXO input is absolute-voltage referenced: 0 V = –100 ppm offset, 3.3 V = +100 ppm offset, with linear response across the range. It does not scale with VDD variations; therefore, a stable 3.3 V reference (e.g., from a precision DAC or filtered LDO) is required for accurate tracking applications.