The BW424 from Sainty-Tech Communications Limited is a Voltage Controlled Oscillator with Frequency 7.80 to 8.60 GHz / 3.9 to 4.3 GHz, Power 6.30 to 12.5 mW, Phase Noise -109 dBc/Hz, Phase Noise dBc/Hz @100kHz -109 dBc/Hz, Harmonic Supression -35 dBc. Tags: Die. More details for BW424 can be seen below.