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W55RFS27R3CH Datasheet(PDF) 4 Page - Winbond |
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W55RFS27R3CH Datasheet(HTML) 4 Page - Winbond |
4 / 13 page W55RFS27R3C - 4 - 1.2 W55RFS27R3C Pad Definition 1.2.1 W55RFS27R3C Pad Description SYMBOL PAD NO. I/O A/D FUNCTIONAL DESCRIPTION GND 1 Ground A Ground return path CMFB 2 I/O A Common-mode feedback capacitor connection RBIAS 3 I/O A Resistor to adjust internal ring-oscillator frequency RSAW 4 I/O A Resistor to control internal saw generator VDDA 5 Power A Regulated voltage output VDDA 6 Power A Regulated voltage output GND_LNA 7 Ground A LNA Ground return path VDD_LNA 8 Power A LNA power input SDINGD 9 Ground A Filter capacitor connection LNAING 10 I A LNA Gate input LNAINS 11 I A LNA Source input LNAOUT 12 O A LNA output(NC) OSCin 13 O A Oscillator tank input OSCout 14 O A Oscillator tank output GNDA 15 O A Regulator ground return path Resetn 16 I/O D Resetn =0 reset whole circuit, internal pull-high Mode 17 I D Receiver mode selection; should be “0” for regular operation ID0 18 I D ID setting(LSB) for Channel shared protocol ([ID1:ID0] = [1,1]) uC-mode ID1 19 I D ID setting (MSB) for Channel shared protocol ([ID1:ID0] = [1,1]) uC-mode TEST 20 I D TEST=1, reserved for chip testing, internal pull-low F1 21 I/O D (manual-mode) Decoder F1 output (uC-mode) Set to “0”. F2 22 I/O D (manual-mode) Decoder F2 output (manual-mode) Power on trapping of Frequency Hopping (uC-mode) $ENB (“0” to power down) |
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