Rakon releases ±20 ppb stability Hybrid TCXO for 5G networks to enable fronthaul and radio synchronisation
Rakon 9 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:
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.
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.