The APL1790-T from ASB Inc. is a Frequency Synthesizer with Frequency 1.76 to 1.82 GHz, Step Size 200 KHz, Reference Frequency 13 MHz, Output Power 2 dBm, Harmonics -25 to -20 dBc. Tags: Surface Mount, PLL Frequency Synthesizer. More details for APL1790-T can be seen below.