NX3225SA-22.000M-STD-CSR-1

Overview

The NDK NX3225SA-22.000M-STD-CSR-1 is a surface-mount quartz crystal unit designed for short-range wireless and office automation applications. It operates at a nominal frequency of 22 MHz with a frequency tolerance of ±15 ppm at 25°C. The component utilizes a fundamental oscillation mode and features a load capacitance of 8 pF. Its equivalent series resistance (ESR) is specified at a maximum of 80 Ohms, ensuring reliable startup characteristics. The device is housed in a compact 4-SMD, no-lead package measuring 3.20 mm x 2.50 mm with a maximum height of 0.60 mm. It supports a standard operating temperature range of -10°C to +75°C.

Feature Summary

• Optimized for short-range wireless communication protocols such as Bluetooth and Zigbee.
• Fundamental mode operation eliminates the need for overtone circuitry.
• Metal case pins provide electromagnetic interference shielding when grounded.

Applications

• Bluetooth Low Energy (BLE) smart locks
• Zigbee and RF4CE home automation devices
• Mobile communication modules

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with your design requirements. Confirm that the selected variant matches the required load capacitance and frequency stability specifications for your target application environment.

Selection Notes

Select this component for designs requiring a 22 MHz clock source in space-constrained portable electronics. Ensure the MCU oscillator circuit is configured to support an 8 pF load capacitance. Verify that the system's operating temperature range falls within the -10°C to +75°C limit defined for this standard specification.

Part Context

This part belongs to the NX3225SA series from NDK, which targets OA/AV and mobile communication markets. The series offers various frequency options within the 3225 footprint, providing designers with standardized solutions for timing needs in consumer electronics and wireless peripherals without compromising board space.

Replacement Considerations

Direct substitutes include other NX3225SA variants with identical electrical parameters but different frequencies, or cross-reference with similar 3225 SMD crystals from manufacturers like Epson or Murata, provided ESR and load capacitance match exactly.

FAQ

What is the maximum equivalent series resistance for this frequency?

The maximum ESR for the 22 MHz model in the NX3225SA series is 80 Ohms.

How should the metal case pins be handled in PCB layout?

Pins 2 and 4 are connected to the metal case and must be soldered to the ground plane to provide shielding and improve ESD performance.