ASK/FSK 450～300MHz Emitter Circuit Diagram

Published:2011/6/18 10:42:00 Author:Vicky | Keyword: ASK/FSK 450～300MHz | From:SeekIC

U27418 is a PLL emitter chip specially designed for meeting the low cost of data communication. The corresponding receiver chip is U3741. Main technical features are listed as follows: ·Emitting frequency: 300～450 MHz; ·Modulation mode of ASK／FSK; ·Maximum transmission rate: 0 Kb／s; ·Voltage of power supply: 2.O～5.5 V; ·Maximum output power: 5 dBm(Vs=3 V，f=433.92 MHZ 9RPWRSET=1.2 kΩ); ·Maximum dissipation of power: 250 mW ; ·Maximum work current : l2.5 mA, maximum current of low-power mode: 0.35μA ; ·Microprocessor clock signal ,which can be compatible with microcontroller such as M44C090 and M44C890; ·ESD protection (excluding pins XT02 and XT01)as requested by MIL-STD．883(4KV HBM); ·Work temperature: -20～+70℃. Applied circuit of U2741



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