مدار مجتمع (آی سی) آی سی‌کاربرد ویژه

Product Attributes

Introduction

The NCD2400M is an electronic calibrator specifically designed for oscillators, capable of providing reliable performance at 105°C required for OCXO applications. It can be used in series or parallel configurations to support various tuning circuit topologies. The digitally controlled capacitance trimming information is communicated via a 2-wire interface compatible with the I2C Fast Mode. The default capacitance value upon power-up can be stored in the internal reprogrammable non-volatile memory.

Features

• DC to 150MHz frequency range
• 512-state digitally programmable capacitor
• Series or shunt configuration: C_shunt = 12.5pF to 194pF (15.5:1 tuning ratio), 355fF step; C_series = 1.7pF to 194pF, 376fF step
• 2-wire (I2C Fast-mode compatible) serial interface
• EEPROM non-volatile memory
• Wide supply voltage range (2.5V to 5.5V)
• Operating ambient temperature up to 105℃
• 2x2x0.65 mm, 6-pin DFN package

Applications

• Temperature-compensated crystal oscillator (OCXO)
• Oscillator
• Tunable RF stage
• Filter tuning
• Capacitive sensor trimming
• Measurement equipment