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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TH71221 датащи(PDF) 37 Page - Melexis Microelectronic Systems |
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TH71221 датащи(HTML) 37 Page - Melexis Microelectronic Systems |
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37 / 44 page  TH71221 27 to 930MHz FSK/FM/ASK Transceiver 39010 071221 Page 37 of 44 Data Sheet Rev. 009 Nov/15 7.7 ASK Test Circuit Component List (Fig. 17) Part Size Value @ 315 MHz Value @ 434 MHz Value @ 915 MHz Tol. Description C0 0603 1.5 pF 1.8 1 pF 5% VCO tank capacitor C1 0603 3.9 pF 5.6 pF 1.8F 5% LNA output tank capacitor C2 0603 1.5 pF 1.0 pF 1.5 pF 5% MIX input matching capacitor C5 0603 1.5 nF 1.5 nF 1.5 nF 10% RSSI output low pass capacitor C6 0603 100 nF 100 nF 100 nF 10% PKDET capacitor CB0 1210 10 μF 10 μF 10 μF 20% de-coupling capacitor CB1 0603 10 nF 10 nF 10 nF 10% de-coupling capacitor CB2 0603 330 pF 330 pF 330 pF 10% de-coupling capacitor CB5 0603 100 nF 100 nF 100 nF 10% de-coupling capacitor CB6 0603 100 pF 100 pF 100 pF 10% de-coupling capacitor CB7 0603 100 nF 100 nF 100 nF 10% de-coupling capacitor CF1 0603 100 pF 100 pF 100 pF 10% loop filter capacitor CF2 0603 39 pF 39 pF 39 pF 5% loop filter capacitor CPS 0603 1 nF 1 nF 1 nF 10% power-select capacitor, depending on data rate CX1 0805 18 pF 18 pF 18 pF 5% RO capacitor CRX0 0603 100 pF 100 pF 10 pF 5% RX coupling capacitor CTX0 0603 10 pF 10 pF 10 pF 5% TX coupling capacitor CTX4 0603 12 pF 4.7 pF 1.8 pF 5% TX impedance matching capacitor R1 0603 100 k 100 k 100 k 5% PKDET resistor R2 0603 680 k 680 k 680 k 5% PKDET resistor RB1 0603 100 100 100 5% protection resistor RF 0603 33 k 33 k 33 k 5% loop filter resistor RPS 0603 18 k 33 k 43 k 5% power-select resistor L0 0603 47 nH 22nH 3.9 nH 5% VCO tank inductor from Würth-Elektronik (WE-KI series) or equivalent part L1 0603 33 nH 15 nH 4.7 nH 5% LNA output tank inductor from Würth-Elektronik (WE-KI series) or equivalent part LTX0 0603 15 nH 15 nH 3.9 nH 5% impedance matching inductor from Würth-Elektronik (WE-KI series) or equivalent part XTAL HC49 SMD 7x5 8.0000 MHz 20ppm cal., 20ppm temp. fundamental-mode crystal, Cload = 10 pF to 15pF, C0, max = 7 pF, Rm, max = 70 CERFIL SMD 3.45x3.1 SFECF10M7HA00 B3dB = 180 kHz ceramic filter from Murata, or equivalent part Note: - Antenna matching network according to paragraph 9 |
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