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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STA8089FG датащи(PDF) 25 Page - STMicroelectronics |
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STA8089FG датащи(HTML) 25 Page - STMicroelectronics |
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25 / 34 page  DocID027175 Rev 8 25/34 STA8089FG Electrical characteristics 33 BWGPS -3dB IF bandwidth GPS mode — 2.4 MHz BWGAL Galileo mode — 4.8 MHz ATT Alias frequency rejection F = 60 MHz (fs = 65.474 MHz) —30 dB TgGPS IF filter group delay variation GPS mode — 200(1) ns TgGAL Galileo mode — 30(1) ns 1. Not tested in production. Table 19. RFCHAIN – GLONASS/BeiDou filter and VGA Symbol Parameter Test conditions Min Typ Max Unit S11(1) 1. Not tested in production. Input return loss GLONASS band -10 dB BeiDou band -7 fIFGNS/BDU IF frequency for GLONASS PLL in default condition with 26 Mhz as reference —8.519 MHz IF frequency for BeiDou — 10.277 NF Noise figure NF overall chain with AGC set at 0 dB —2(1) dB CG Conversion gain from RF input to ADC input VGA at min gain — 68 dB VGA at max gain — 118 dB IP1dB RF-IF-VGA input compression point VGA min — -80 dBm IRR Image rejection ratio — 25 dB BWGNS/BDU -3dB IF bandwidth — 10 MHz ATT Alias frequency rejection F = 53 MHz (fs = 65.474 MHz) —30 dB TgGNS/BDU IF filter group delay variation —20(1) ns Table 20. Synthesizer Symbol Parameter Min. Typ. Max. Unit FTCXO_XTAL Input frequency for xtal amplifier (1) 1. That amplifier can be used also as a TCXO input buffer. 10 52 MHz RDIV Reference divider range 1 63 NDIV Loop divider range 56 2047 FLO LO operating frequency 3142.656 MHz Table 18. RFACHAIN – GALGPS filter and VGA (continued) Symbol Parameter Test conditions Min Typ Max Unit |
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