FreeCalypso > hg > freecalypso-schem2
view venus/src/core/rf_pa_block.v @ 72:f0038b3d255f
new 32.768 kHz crystal part, same specs as before
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 03 Dec 2021 02:51:51 +0000 |
parents | 3ed0f7a9c489 |
children |
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/* * This module encapsulates the RF PA along with its power bypass caps * and the Rs and Cs on the control inputs. */ module rf_pa_block (GND, VBAT, Band_Select, Tx_Enable, APC_in, LB_RF_in, HB_RF_in, LB_RF_out, HB_RF_out); input GND, VBAT; input Band_Select, Tx_Enable, APC_in; input LB_RF_in, HB_RF_in; output LB_RF_out, HB_RF_out; /* * A little bit of muck with the control inputs, following Leonardo * and Openmoko schematics. On FC Venus we completely eliminate * R621 and R622. */ wire APC_after_resistor; resistor R623 (APC_in, APC_after_resistor); capacitor C648 (APC_after_resistor, GND); capacitor C656 (Band_Select, GND); /* instantiate the PA itself */ RF3166 PA (.HB_RF_in(HB_RF_in), .Band_Select(Band_Select), .Tx_Enable(Tx_Enable), .Vbatt(VBAT), .GND(GND), .Vramp(APC_after_resistor), .LB_RF_in(LB_RF_in), .LB_RF_out(LB_RF_out), .HB_RF_out(HB_RF_out) ); /* 4 bypass caps per both Leonardo and Openmoko schematics */ capacitor C651 (VBAT, GND); capacitor C652 (VBAT, GND); capacitor C653 (VBAT, GND); capacitor C654 (VBAT, GND); endmodule