The UPB137D is a silicon monolithic integrated circuit designed and manufactured by NEC. It is intended for use as a prescaler in high-frequency applications. Prescalers divide the input frequency by a specific factor, creating a lower frequency signal used in various electronic systems.

Applications

• Frequency Synthesizers: Used within Phase-Locked Loop (PLL) circuits to generate stable and accurate frequencies.
• Test and Measurement Equipment: Incorporated into frequency counters and spectrum analyzers for accurate signal analysis.
• Satellite Communication Systems: Used in satellite receivers for frequency down-conversion.
• Wireless Communication Devices: Employed in various wireless transceivers, including mobile phones and WLAN devices.

Features

• High Input Sensitivity: Allows for operation with weak input signals.
• High-Speed Operation: Designed for high-frequency applications in the GHz range.
• Low Current Consumption: Minimizes power usage, suitable for battery-powered devices.
• Wide Operating Voltage Range: Provides flexibility in power supply design.
• Small Package Size: Enables compact circuit layouts.

Benefits

• Improved Frequency Stability: Contributes to a more stable and accurate output frequency.
• Simplified Circuit Design: Simplifies the design of frequency synthesis and related circuits.
• Enhanced System Performance: High-speed capabilities improve performance in high-frequency applications.
• Extended Battery Life: Low power consumption extends the operational life of portable devices.
• Reduced System Size: Small packaging facilitates miniaturization of electronic devices.

Specifications

The UPB137D is generally designed for high-frequency operation, commonly in the GHz range, although specific frequency division ratios and maximum operating frequencies may vary depending on the application and the external circuit design. Operating voltage typically ranges from 2.7V to 5.5V. It is typically housed in a small surface-mount package (e.g., SOT-25) suitable for high-density PCB layouts.