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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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EM341 датащи(PDF) 18 Page - Silicon Laboratories |
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EM341 датащи(HTML) 18 Page - Silicon Laboratories |
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18 / 237 page  EM341 18 Rev 1.0 2.7.2. Transmit Table 2.9 lists the key parameters of the integrated IEEE 802.15.4-2003 transmitter on the EM341. Transmit measurements were collected with the Silicon Labs EM341 Ceramic Balun Reference Design (Version A0) at 2440 MHz. The Typical number indicates one standard deviation below the mean, measured at room temperature (25 C). The Min and Max numbers were measured over process corners at room temperature. In terms of impedance, this reference design presents a 3n3 inductor in parallel with a 100:50 Ω balun to the RF pins. Table 2.9. Transmit Characteristics Parameter Test Condition Min Typ Max Unit Maximum output power (boost mode) At highest boost mode power setting (+8) — 8 — dBm Maximum output power At highest normal mode power setting (+3) 1 5 — dBm Minimum output power At lowest power setting — –55 — dBm Error vector magnitude (Offset-EVM) As defined by IEEE 802.15.4-2003, which sets a 35% maximum — 5 15 % Carrier frequency error –40 — +40 ppm PSD mask relative 3.5 MHz away –20 — — dB PSD mask absolute 3.5 MHz away –30 — — dBm |
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