RHT1490J The RHT1490J is a high frequency Stratum 3 TCXO specifically designed to meet telecommunications grade stabilities at high frequencies with low phase jitter. This product’s frequency output enables lower system jitter, allowing communication system architects to optimise noise budget and performance. Having the optimal balance between close‐in phase noise and the noise floor, makes it suitable to be the single reference clock used for both network and air interface requirements. Its ultra‐low noise floor performance helps to achieve very low system clock RMS jitter levels need in high speed interfaces (40G/100G). Comfortably achieving Stratum 3 grade stability, its CMOS output generates < 200 fs of RMS phase jitter (12 kHz – 20 MHz), in a 14 x 9 mm SMD package. An ideal reference clock solution for SyncE and Packet clock requirements (ITU‐T G.813, G.8262, G.82673.2 and G8273.3), it also works with both discrete and integrated IEEE 1588 solutions – providing excellent medium term stability for low loop bandwidth applications. Stratum 3 equipment Carrier Ethernet/Microwave Telecom PLLs ITU‐T G.813, G.8262, G.82673.2 and G8273.3  Radio Head Clock Recovery (IEEE 1588/SyncE)  10/25/40/100G Ethernet Standard Specifications Parameter Frequency stability over temperature ppb ppm ppb/g

GND Output Do not connect Supply Voltage (VDD) NOTE: Outline unit is mm.