CY22800FXC-027A

Application Specific Clock/Timing Overview

The CY22800FXC-027A is a Universal Programmable Clock Generator (UPCG) designed for MPEG-2, DTV, and STB applications. It operates on a single 3.3V supply within a voltage range of 3.14V to 3.47V. The device accepts an input frequency of 27 MHz via crystal or external clock. It generates three LVCMOS outputs: CLKB at 27 MHz and CLKC at 27.027 MHz with -1 ppm offset. The component utilizes Cypress proprietary PLL technology and features VCXO capability for frequency tracking. It is housed in an 8-pin SOIC package and supports commercial operating temperatures from 0°C to 70°C.

Application Specific Clock/Timing Feature Summary

• Configured as an MPEG-2 clock generator for DTV and STB systems
• Generates specific output frequencies: CLKB at 27 MHz and CLKC at 27.027 MHz (-1 ppm)
• Integrates VCXO functionality for locking to shifting external reference sources
• Operates with a 27 MHz crystal input using Cypress proprietary PLL technology

Application Specific Clock/Timing Applications

• Digital Television (DTV) systems
• Set-Top Box (STB) designs
• MPEG-2 compliant video processing circuits

Application Specific Clock/Timing Procurement Notes

Verify the exact ordering suffix against manufacturer documentation to confirm configuration codes. Ensure compatibility with pullable crystal specifications when utilizing the VCXO feature. Confirm that the commercial temperature grade meets the operational environment requirements. Check for updated datasheet revisions regarding design recommendations.

Application Specific Clock/Timing Selection Notes

Select this part when fixed 27 MHz and 27.027 MHz outputs are required for MPEG-2 standards. The VCXO pin allows for frequency pulling if the system requires tracking an external reference. Compare against other CY22800 configurations if different output ratios or spread spectrum features are needed instead of fixed multipliers.

Application Specific Clock/Timing Part Context

This component belongs to the CY22800 family of universal programmable clock generators originally developed by Cypress Semiconductor Corporation. The family offers various predefined configurations for consumer and communication markets. Infineon Technologies acquired Cypress Semiconductor, and the product line continues under their portfolio.

Application Specific Clock/Timing FAQ

What is the purpose of the VCXO pin on the CY22800FXC-027A?

The VCXO pin allows the device to 'pull' the reference crystal frequency higher or lower. This enables the output frequency to track along with an external reference source that may be constantly shifting.

What are the specific output frequencies for this configuration?

For the -027A code, the device generates CLKB at 27 MHz and CLKC at 27.027 MHz with a -1 ppm offset. The input reference frequency is 27 MHz.

Is Spread Spectrum Clock Generation (SSCG) enabled in this configuration?

No, the CY22800FXC-027A configuration does not support Spread Spectrum Clock Generation. SSCG is available in other configurations such as the -015A through -022A series.