The APL0434-T from ASB Inc. is a Frequency Synthesizer with Frequency 431.5 to 436.5 MHz, Step Size 100 KHz, Reference Frequency 13 MHz, Output Power 3 to 7 dBm, Harmonics -30 to -20 dBc. Tags: Surface Mount, PLL Frequency Synthesizer. More details for APL0434-T can be seen below.