RPT1490LN RAKON | Alldatasheet

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Pluto+™ Ultra-Low Noise (LNO) TCXO Issue: B, 21 October 2024 Specifications are subject to change without notice Copyright © 2022 to 2024 Rakon Limited. All rights reserved Page 1 of 2 Contact Us RPT1490LN The RPT1490LN is a high-performance ultra-low noise (ULN) TCXO in a compact package size of 14.5 x 9.5 x 6.0 mm. It is designed for clock reference applications where ultra-low phase noise and low wander generation performance are crucial. The RPT1490LN is a QUALCOMM qualified reference part supporting the 5G FSM100xx platform. The registered QUALCOMM design reference numbers are FSM10055 and FSM10056. High bandwidth applications performing QAM -like modulation require low phase noise at large frequency offsets. The RPT1490LN achieves a noise floor as low as - 175 dBc/Hz. The unique combination of ±0.3 ppm stability over - 40 to 9 5°C and low phase noise enables the device to be the single reference oscillator for network synchronisation and phase noise clean up. Standard Specifications Parameter Min. Typ. Max. Unit Test Condition / Description Nominal frequency (Fn) 10 – 50 MHz Standard frequency 38.4 MHz Frequency calibration ±1 ppm At 25°C ±2°C Reflow shift ±0.5 ppm After 1 hour of recovery at 25°C Operating temperature range -40 95 °C -40 to 105°C available on request Frequency stability over temperature in still air ±0.3 ppm Reference to (FMAX + FMIN)/2 Supply voltage stability ±0.1 ppm ±5% variation, reference to frequency at 3.3V Load sensitivity ±0.1 ppm ±10% variation, reference to frequency at 15pF Long term stability (ageing at 25°C) ±1 ppm First year 15 years Supply voltage (VCC) 3.135 3.3 3.465 V Input current 10 15 mA At nominal condition, 15 pF Control voltage (Vc) 0.5 2.5 V 0 to 3.3V operational Frequency tuning ±6 ±10 ppm Reference to the frequency at Vc = 1.5 V Slope +7 ppm/V Input impedance 1 MΩ Linearity 1 % Deviation from the straight line curve fit Port input impedance 1 MΩ Modulation bandwidth 3.5 Hz Oscillator output – CMOS Output voltage low (VOL) Output voltage high (VOH) Rise and fall time Duty cycle Output load 2.7 0.4 V V ns pF 10% to 90% level Measured at 50% level Features Applications 14.5 x 9.5 x 6.0 mm  Ultra-low noise floor: -175 dBc/Hz  Frequency: 10 to 50 MHz  Stability: ±0.3 ppm over -40 to 95°C  High-Q XMEMS® crystal technology  Patent "Tilt Compensation" in voltage control.  5G RRUs and 5G small cells  Microwave & millimetre wave systems  Test & measurement equipment  Coherent optical modules

Pluto+™ Ultra-Low Noise (LNO) TCXO Issue: B, 21 October 2024 Specifications are subject to change without notice Copyright © 2022 to 2024 Rakon Limited. All rights reserved Page 2 of 2 Contact Us SSB Phase Noise and RMS Phase Jitter (Typical value at 25°C)

38.4 MHz RPT1490LN TCXO phase noise with CMOS Output

Model Outline and Recommended Pad Layout PIN CONNECTIONS

1 Control Voltage (Vc)

2 GND

3 GND

4 RF Output

5 Do not connect

6 Supply Voltage (Vcc)

NOTE:

  • Plastic cap, RF4 base.
  • Finish: 0.05 ~ 0.13 µm Gold over 3 ~ 6 µm Nickel
  • Unit: mm RMS Jitter = 21 fs (12 kHz – 20 MHz)