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Si4468 Datasheet(PDF) 9 Page - Silicon Laboratories |
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Si4468 Datasheet(HTML) 9 Page - Silicon Laboratories |
9 / 57 page Si4468/7 Rev 1.0 9 Table 4. Transmitter AC Electrical Characteristics Parameter Symbol Test Condition Min Typ Max Unit TX Frequency Range FTX 850 — 1050 MHz 350 — 525 MHz 284 — 350 MHz 142 — 175 MHz (G)FSK Data Rate DRFSK 0.1 — 500 kbps 4(G)FSK Data Rate DR4FSK 0.2 — 1000 kbps OOK Data Rate DROOK 0.1 — 120 kbps Modulation Deviation Range f960 850–1050 MHz —1.5 — MHz f525 420–525 MHz —750 — kHz f420 350–420 MHz —600 — kHz f350 283–350 MHz —500 — kHz f175 142–175 MHz —250 — kHz Modulation Deviation Resolution FRES-960 850–1050 MHz — 28.6 —Hz FRES-525 420–525 MHz — 14.3 —Hz FRES-420 350–420 MHz — 11.4 —Hz FRES-350 283–350 MHz — 9.5 —Hz FRES-175 142–175 MHz — 4.7 —Hz Output Power Range (Si4468) PTX68 Typical range at 3.3 V –20 — +20 dBm Output Power Range (Si4467) PTX67 Typical range at 3.3 V with Class E match optimized for best PA efficiency –20 — +12.5 dBm Output Power Variation (Si4468) At 20 dBm PA power setting, 915 MHz, Class E match, 3.3 V, 25 °C 19 20 21 dBm Output Power Variation (Si4467) At 10 dBm PA power setting, 915 MHz, Class E match, 3.3 V, 25 °C 910 11 dBm Notes: 1. All minimum and maximum values are guaranteed across the recommended operating conditions of supply voltage and from –40 to +85 °C unless otherwise stated. All typical values apply at VDD = 3.3 V and 25 °C unless otherwise stated. 2. The maximum data rate is dependent on the XTAL frequency and is calculated as per the formula: Maximum Symbol Rate = Fxtal/60, where Fxtal is the XTAL frequency (typically 30 MHz). 3. Default API setting for modulation deviation resolution is double the typical value specified. 4. Output power is dependent on matching components and board layout. |
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