The TSM2640 from Narda-MITEQ is a RF Amplifier with Frequency 2.6 to 4 GHz, Gain 25 dB, Gain Flatness ± 2.75 dB, Noise Figure 4 dB, Output Power 8 dBm. Tags: Surface Mount, Power Amplifier, Low Noise Amplifier. More details for TSM2640 can be seen below.