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25MHz TCXO SMD2520

Frequency: 25MHz
Supply Voltage(Vcc): 1.8V/2.8V/3.0V
Frequency Stability Vs Temperature: ±0.05ppm/℃ max.(-30 ~ +85℃)
Initial Frequency Tolerance: ±2.0ppm max.

25MHz SMD 2520 TCXO – Ultra-Compact High Stability Reference Clock

Product Overview:

The 25MHz TCXO in the SMD 2520 (2.5mm x 2.0mm) package is designed for space-constrained applications requiring superior frequency stability. Delivering ±0.5ppm precision across an extended temperature range, this oscillator features a Cliped Sine Wave output for reduced EMI. With a remarkably low current draw of only 1.5mA, it is the perfect timing solution for battery-powered devices, GPS/GNSS receivers, and modern telecommunication systems.

Key Features:

  • Ultra-Small Footprint: Compact 2.5 x 2.0 mm SMD package saves critical PCB real estate.

  • High Frequency Stability: Offers tight ±0.5ppm stability from -30°C to +85°C.

  • Low Phase Noise: Excellent performance with -130 dBc/Hz at 1kHz offset, ensuring high signal integrity.

  • Extreme Low Power: Consumes maximum 1.5mA, extending battery life in portable applications.

  • Wide Supply Voltage: Flexible operation from +1.7V to +3.3V.

  • Fast Start-up: Rapid initialization in less than 2ms.

  • EMI Optimized: Cliped Sine Wave output minimizes electromagnetic interference.

Ideal Applications:

  • GPS / GNSS Modules: High-precision reference for positioning and navigation systems.

  • Mobile Communications: Smartphones, wearables, and portable radio equipment.

  • IoT Devices: Low-power timing for smart sensors and connected devices.

  • Wireless Connectivity: Wi-Fi, Bluetooth, and cellular backhaul.

Description


Model

TCXO SMD252025Mhz 3.3V
SizeSMD2520
Frequency
25 MHz
Type
TCX0

Vcc

+1.7V+3.3V

Vcount
N/A
AFC Range.N/A
Temp±0.5ppm max.@-30+85℃
Slope±0.05ppm/℃ max.@-20+65℃
Initial Frequency±2.0ppm max. (After 2times reflow)


Electrical Characteristics


ParameterValueConditions
Frequency25.000000MHz
Supply VoltagelVcc+1.8±5%,+2.8V±5%,+3.0±5%
Output Load10kohm//10pF±10%
Control Voltage[VcontNA
Output Level0.8Vp-pminCliped sine wave (DC-coupled)
Current.5mAmax.0koms//10pF±10%
Duty Cycle50±5%
Operating Temperature Range40~+85℃
Storage Temperature Range40~+85℃
Initial Frequency Tolerance±2.0ppm maxAfter 2times reflow
FrequencyStabilityVs.Temperature(-30~+85℃)±0.5ppm maxReferenced to+25℃ frequenc
vs.Temperature (-40~-30℃)±3.0ppm  max.
vs.Supply Voltage±0.2ppm  max.Vcc±5%
Vs.Load±0.2ppm  max.10koms//10pF±10%each
Vs.Aging±1.0ppm  max.1st Year
Frequency SlopeVs.Temperature(.20~+65℃)±0.05ppm/C maxEvery+2℃
vs.Temperature (-30~+85℃)±0.1ppm/℃ max
vs.Temperature(-40~-30℃)±0.35pom/℃ max
Start.up Time2ms maxMorethan 90%offinal amplitude
Phase Noise-130dBcHz max1KHz offset



Dimensions


Surface mount TCXO 2520 dimension.png


Measurement Circuit


tcxo test circuit.png

Notes:

- Please connect a bypass capacitor closely to Vcc Pad. 

- Load capacitance (CL) includes probe and test board capacitance


Packing Specifications


1725003447892178.png

1725003472645480.png

2.5x2.0 SMD VCTCXO Oscillator 38.4mhz/26mhz/50mhz Optional 


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