---
title: Rakon releases ±20 ppb stability Hybrid TCXO for 5G networks to enable fronthaul and radio synchronisation
description: The RTH7050PA is the ideal choice for 5G synchronisation applications; it offers a very low susceptibility to temperature variations with superior phase noise performance.
---

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# [Rakon releases ±20 ppb stability Hybrid TCXO for 5G networks to enable fronthaul and radio synchronisation](https://www.rakon.com/news/rakon-releases-20-ppb-stability-hybrid-tcxo-for-5g-synchronisation)

 Written by [Rakon](https://www.rakon.com/news/author/rakon) | 8 September 2021

Rakon has announced the release of the RTH7050PA, a high performance Hybrid TCXO that incorporates Rakon’s proprietary Mercury+™ ASIC. The product features a hybrid technology, where the ASIC has two functionalities, namely temperature compensation and a heated element to keep the temperature of the resonator constant. The oscillator achieves a frequency stability of ±20 ppb over a wide temperature range from -40 to +105°C. Its frequency slope over temperature is as low as 0.5 ppb/°C.

The RTH7050PA uses a high-Q crystal and an in-house quartz manufacturing process, resulting in superior close-in phase noise performance, an all causes stability of ≤ 4.6 ppm/20 years. Nominal frequencies are available from 10 to 50 MHz in a 10 pad, 7.5 x 5.5 mm footprint size.

5G radios and front-haul synchronisation systems use very low bandwidth servos, down to mHz range. To meet the stringent 3GPP air interface requirements for radios and time alignment error requirements stipulated by ITU-T for front-haul routers and switches, frequency references with very good short to medium term performances are essential.

Compared to traditional TCXOs, Rakon’s Hybrid TCXOs offer 10 times the performance of Stratum 3 TCXO in terms of:

- Frequency slope (temperature sensitivity): ±0.5 ppb/°C (vs ±20 ppb/°C)
- Temperature stability: ±20 ppb (vs ±300 ppb)
- Ageing: 3 ppb/day (vs 30 ppb/day)

The extremely low temperature sensitivity ensures minimal dynamic noise on the low bandwidth system output, across the entire temperature regime. The close-in phase noise performance enables systems to optimise cost performance by rendering second stage phase noise clean up redundant.

Key specifications:

- Excellent frequency stability: ≤±20 ppb over -40 to 85°C (see Figure 1. -40 to 105°C available upon request)
- Low frequency slope: 0.5 ppb/°C typ.
- Superior close-in phase noise; noise floor -160 dBc/Hz for 10 MHz devices
- Fast warm-up time (±20 ppb): <15s at -25°C, <20s at -40°C
- All causes stability: ≤4.6 ppm/20 years
- Excellent g-sensitivity: 1 ppb/*g*  
  **

The unique frequency specifications enable the RTH7050PA to meet both 5G network synchronisation and air interface requirements. It is the ideal choice for applications such as 5G RRHs/RRUs, 4G/5G small cells, optical networks and microwave transmission systems.

**Product Enquiries:**

Email [sales@rakon.com](mailto:sales@rakon.com). For more information, please view the [RTH7050PA](https://www.rakon.com/hubfs/Files/Product%20datasheets/TCXO/TCXO%20RTH7050PA%20OPF%20rev%20A.pdf) datasheet.

 

[View full post](https://www.rakon.com/news/rakon-releases-20-ppb-stability-hybrid-tcxo-for-5g-synchronisation)

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