The HE487ZI-L from BOWEI Integrated Circuits is a Voltage Controlled Oscillator with Frequency 3775 to 3900 MHz, Power 6.31 mW, Tuning Sensitivity 40 to 70 MHz/V, Tuning Voltage 0.5 to 4.5 V, Phase Noise -118 to -97 dBc/Hz. More details for HE487ZI-L can be seen below.
