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RFFC506X Datasheet(PDF) 4 Page - RF Micro Devices |
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RFFC506X Datasheet(HTML) 4 Page - RF Micro Devices |
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4 / 25 page  4 of 25 RFFC5061/62 DS110614 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. Note 1: An RC low-pass filter could be used on this line to reduce digital noise. Note 2: If the device is under software control this input can be configured as a general purpose output (GPO). Note 3: Connect a 51K resistor from this pin to ground. This pin is sensitive to low frequency noise injection. Note 4: DC voltage should not be applied to this pin. Use either an AC coupling capacitor as part of lumped element matching network or a transformer (see application schematic). Note 5: This pin must be connected to ANA_VDD2 using an RF choke or transformer (see application schematic). Pin Function Description 1ENBL/GPO5 Device Enable pin (see note 1 and 2). 2 EXT_LO External local oscillator input (See note 4). 3 EXT_LO_DEC Decoupling pin for external local oscillator (See note 4). 4REXT External bandgap bias resistor (See note 3). 5 ANA_VDD1 Analog supply. Use good RF decoupling. 6LFILT1 Phase detector output. Low-frequency noise-sensitive node. 7LFILT2 Loop filter op-amp output. Low-frequency noise-sensitive node. 8LFILT3 VCO control input. Low-frequency noise-sensitive node. 9MODE/GPO6 Mode select pin (See note 1 and 2). 10 XTALP Reference crystal input. 11 XTALN Reference crystal input. 12 TM Connect to ground. 13 MIX1_IPN Differential input 1 (see note 4). On RFFC5062 this pin is NC. 14 MIX1_IPP Differential input 1 (see note 4). On RFFC5062 this pin is NC. 15 GPO1/ADD1 General purpose output / MultiSlice address bit. 16 GPO2/ADD2 General purpose output / MultiSlice address bit. 17 MIX1_OPN Differential output 1 (see note 5). On RFFC5062 this pin is NC. 18 MIX1_OPP Differential output 1 (see note 5). On RFFC5062 this pin is NC. 19 DIG_VDD Digital supply. Should be decoupled as close to the pin as possible. 20 NC 21 NC 22 ANA_VDD2 Analog supply. Use good RF decoupling. 23 MIX2_IPP Differential input 2 (see note 4). 24 MIX2_IPN Differential input 2 (see note 4). 25 GPO3/FM General purpose output / frequency control input. 26 GPO4/LD/DO General purpose output / Lock detect output / serial data out. 27 MIX2_OPN Differential output 2. (see note 5). 28 MIX2_OPP Differential output 2. (see note 5). 29 RESETX Chip reset (active low). Connect to DIG_VDD if asynchronous reset is not required. 30 ENX Serial interface select (active low) (See note 1). 31 SCLK Serial interface clock (see note 1). 32 SDATA Serial interface data (see note 1). Exposed paddle Ground reference, should be connected to PCB ground through a low impedance path. |
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Similar Description - RFFC506X |
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