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MICRF002 Datasheet(PDF) 3 Page - Micrel Semiconductor |
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MICRF002 Datasheet(HTML) 3 Page - Micrel Semiconductor |
3 / 17 page Micrel, Inc. MICRF002/RF022 July 2008 3 M9999-070808 Pin Description Pin Number SOIC-16 Pin Number SOIC-8 Pin Name Pin Name 1 – SEL0 Bandwidth Selection Bit 0 (Digital Input): Used in conjunction with SEL1 to set the desired demodulator filter bandwidth. See Table 1. Internally pulled-up to VDDRF. 2, 3 1 VSSRF RF Power Supply: Ground return to the RF section power supply. 4 2 ANT Antenna (Analog Input): For optimal performance the ANT pin should be impedance matched to the antenna. See “Applications Information” for information on input impedance and matching techniques. 5 3 VDDRF RF Power Supply: Positive supply input for the RF section of the IC. 6 – VDDBB Base-Band Power Supply: Positive supply input for the baseband section (digital section) of the IC. 7 4 CTH Data Slicing Threshold Capacitor (Analog I/O): Capacitor connected to this pin extracts the dc average value from the demodulated waveform which becomes the reference for the internal data slicing comparator. 8 – NC Not internally connected 9 – VSSBB Base-Band Power Supply: Ground return to the baseband section power supply. 10 5 DO Data Output (Digital Output) 11 6 SHUT Shutdown (Digital Input): Shutdown-mode logic-level control input. Pull low to enable the receiver. Internally pulled-up to VDDRF. 12 – WAKEB Wakeup (Digital Output): Active-low output that indicates detection of an incoming RF signal. 13 7 CAGC Automatic Gain Control (Analog I/O): Connect an external capacitor to set the attack/decay rate of the on-chip automatic gain control. 14 – SEL1 Bandwidth Selection Bit 1 (Digital Input): Used in conjunction with SEL0 to set the desired demodulator filter bandwidth. See Table 1. Internally pulled-up to VDDRF. 15 8 REFOSC Reference Oscillator: Timing reference, sets the RF receive frequency. 16 – SWEN Sweep-Mode Enable (Digital Input): Sweep- or Fixed-mode operation control input. SWEN high= sweep mode; SWEN low = conventional superheterodyne receiver. Internally pulled-up to VDDRF. |
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Similar Description - MICRF002 |
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