The MLLP-0400 from Micro Lambda Wireless, Inc. is a General Crystal Oscillator with Frequency 4000 MHz, Current 80 mA, Output Power +13 dBm, Phase Noise 10 kHz -100 dBc/Hz, Pulling 1 MHz@12 dB RL. Tags: YIG Oscillator. More details for MLLP-0400 can be seen below.