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STW82102B Datasheet(PDF) 58 Page - STMicroelectronics |
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STW82102B Datasheet(HTML) 58 Page - STMicroelectronics |
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58 / 67 page  Application information STW82102B 58/67 Doc ID 018516 Rev 2 11.3 Diversity mode operation with same LO frequency The STW82102B supports the Diversity mode with the same LO frequency by using one STW82102B in Master Mode (RX Chain ON, Synthesizer ON and LO output buffer ON) and the other in Slave Mode (RX Chain ON, Synthesizer OFF and EXT VCO/LO buffer ON). This operation mode is suitable for antenna diversity. Figure 27. Diversity mode operation with same LO frequencies 4:1 IF_M 50 Ω 5V IF_OUTP IF_OUTN IF AMP DBUS DBUS_SEL SDA/DATA SCL/CLK LOAD RF_IN RF_VSS RF_CT RF_IN_M 5V DIV2 BUF LOCK_DET REXT_CP REF_CLK CHP PFD UP DN PLL ICP VCO CAL_VCO VCTRL BUFF VCO calibrator MIXDRV_CT MIX DRV STW82102B Master MIX DRV DBUS RF_IN RF_CT RF_IN_S 100 Ω 4:1 IF_S 50 Ω IF_OUTP IF_OUTN STW82102B Slave IF AMP 5V DBUS_SEL SDA/DATA SCL/CLK LOAD EXTVCO_INN MIXDRV_CT 5V OUTBUFP OUTBUFN 3.3V LO OUT EXTVCO_INP 50 Ω 50 Ω EXT LO/VCO BUF RF_VSS to DAC CAL_VCO |
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