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SiT1421B - Active Resonator Drop-In Replacement

General Description

Pin Symbol 1 XIN/VDD VDD Power 2 GND Power 3 XOUT Output 4 GND Power Functionality Connect to µC GPIO pin XTAL1 set High via firmware[3] Electrical ground CLK output; connect to µC XTAL2 pin (refer to Figure 18 in Application Note section) Electrical GND Top View GND 4 3 XOUT/CLK

Key Features

  • No load capacitors required.
  • No motional series resistance (ESR) compensation.
  • No negative resistance testing.
  • Guaranteed oscillator startup under all conditions.
  • One active resonator can drive up to two clock inputs.
  • All-inclusive frequency stability as low as ±20 ppm over extended temperature range (-55°C to 125°C).
  • Fundamental frequencies between 119.342001 MHz and 137 MHz accurate to 6 decimal places.
  • Supply voltage of 1.8 V or 2.5 V to 3.3 V.
  • In.

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Datasheet Details

Part number SiT1421B
Manufacturer SiTime
File Size 1.05 MB
Description Active Resonator Drop-In Replacement
Datasheet download datasheet SiT1421B Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SiT1421B XCalibur High frequency, -55°C to 125°C Active Resonator Drop-In Replacement for 4-pin SMD XTAL Features ◼ No load capacitors required ◼ No motional series resistance (ESR) compensation ◼ No negative resistance testing ◼ Guaranteed oscillator startup under all conditions ◼ One active resonator can drive up to two clock inputs ◼ All-inclusive frequency stability as low as ±20 ppm over extended temperature range (-55°C to 125°C) ◼ Fundamental frequencies between 119.342001 MHz and 137 MHz accurate to 6 decimal places ◼ Supply voltage of 1.8 V or 2.5 V to 3.3 V ◼ Industry best G-sensitivity of 0.1 ppb/g ◼ Low power consumption of 4.9 mA typical at 1.8 V ◼ LVCMOS compatible output ◼ Industry-standard packages: 2.5 x 2.0, 3.2 x 2.