AD9901KP-REEL

Overview

The AD9901KP-REEL is a digital phase/frequency discriminator from Analog Devices, designed for direct comparison of phase and frequency inputs up to 200 MHz. It utilizes a high-speed trench-oxide isolated process to provide a linear detection range without indeterminate phase detection zones. The device operates on a single +5 V supply for TTL/CMOS compatibility or a –5.2 V supply for ECL inputs. Key electrical characteristics include a peak-to-peak output voltage swing of 1.6 V to 2.0 V and a typical power dissipation of 218 mW at +25 °C. The commercial temperature variant functions between 0 °C and +70 °C.

Feature Summary

• Linear transfer function with no dead zone
• ECL/TTL/CMOS compatible operation
• Direct input comparison up to 200 MHz
• Open-collector outputs for flexible swing matching

Applications

• Low phase noise reference loops
• Fast-tuning agile IF loops
• Secure hopping communications
• Coherent radar transmitter/receiver chains

Procurement Notes

Verify the specific suffix 'KP' corresponds to the 20-lead Plastic Leaded Chip Carrier (PLCC) package as defined in the ordering guide. Confirm that the 'REEL' designation indicates tape-and-reel packaging rather than the standard tube format typically associated with this package type. Ensure the component meets the commercial temperature range specifications of 0 °C to +70 °C.

Selection Notes

Select the AD9901KP variant when a 20-lead PLCC package is required for the commercial temperature range. Consider the open-collector output structure for interface flexibility with post-filtering requirements. Evaluate the need for an external current-setting resistor to control output stage current and power consumption. Verify supply voltage compatibility, as the device supports both +5 V TTL and –5.2 V ECL configurations.

Part Context

The AD9901 series includes variants such as the AD9901KQ in a 14-lead ceramic DIP and military-compliant versions like the AD9901TQ/883. The KP suffix specifically identifies the plastic leaded chip carrier package option within the commercial product line. This component belongs to a family of ultrahigh-speed discriminators designed for robust phase-lock loop applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.