HFA3524IA

Product Overview

The Harris Corporation HFA3524IA is a surface-mount frequency synthesizer IC that integrates one PLL-based circuit in a 20-TSSOP package. It accepts CMOS, TTL, or crystal inputs and provides a CMOS output, with an input-to-output ratio of 3:3. The device operates from a 2.7 V to 5.5 V supply and is rated for an ambient temperature range of -40°C to 85°C.

Key Features

• Frequency synthesizer IC with PLL functionality
• Accepts CMOS, TTL, or crystal inputs
• Provides a CMOS output
• Contains one circuit
• Input-to-output ratio: 3:3
• Supply voltage range: 2.7 V to 5.5 V
• Operating temperature: -40°C to 85°C (TA)
• Surface-mount package: 20-TSSOP, 4.40 mm width

Applications

• Clock generation in embedded boards that use a crystal or digital reference input
• Frequency synthesis in single-output timing subsystems requiring a CMOS clock
• Reference clock interfaces where CMOS and TTL input compatibility is useful

Design & Procurement Notes

For board design, verify the 20-TSSOP land pattern and confirm that the system supply stays within 2.7 V to 5.5 V. The 3:3 input-to-output ratio and the single-circuit architecture should be checked against the required timing scheme; if a different ratio is needed, verify that the device can meet it. Because the output is CMOS, evaluate the load and fan-out requirements of the connected logic. The -40°C to 85°C ambient range should be used as a thermal design boundary, and the exact manufacturer part number HFA3524IA and 20-TSSOP package should be confirmed during procurement.