The TLSD20004000/100K from Luff Research, an Ironwave Technologies Company is a Frequency Synthesizer with Frequency 2 to 4 GHz, Step Size 100 kHz, Reference Frequency 5 MHz, 10 MHz, Output Power 13 dBm, Output Power Variation 3 dB. Tags: Module with Connectors, PLL Frequency Synthesizer. More details for TLSD20004000/100K can be seen below.