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BLUENRG-332VC 数据表(PDF) 45 Page - STMicroelectronics |
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BLUENRG-332VC 数据表(HTML) 45 Page - STMicroelectronics |
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45 / 67 page ![]() 6.3.11 High speed ring oscillator characteristics Table 29. HSI oscillator characteristics Symbol Parameter Conditions Min. Typ. Max. Unit fNOM Nominal frequency - - 64 - MHz 6.3.12 Low speed ring oscillator characteristics Table 30. LSI oscillator characteristics Symbol Parameter Conditions Min. Typ. Max. Unit fNOM Nominal frequency - - 33 - kHz ΔFRO_ΔT/FRO Frequency spread vs. temperature Standard deviation - 140 - ppm/ºC 6.3.13 PLL characteristics Characteristics measured over recommended operating conditions unless otherwise specified. Table 31. PLL characteristics Symbol Parameter Conditions Min. Typ. Max. Unit PNSYNTH RF carrier phase noise At ±1 MHz offset from carrier (measured at 2.4 GHz) - -110 - dBc/Hz At 2.4 GHz ±3 MHz offset from carrier (measured at 2.4 GHz) - -114 - dBc/Hz At 2.4 GHz±6 MHz offset from carrier (measured at 2.4 GHz) - -128 - dBc/Hz At ±25 MHz offset from carrier - -135 - dBc/Hz LOCKTIMETX PLL lock time to TX With calibration @2.5 ppm - 150 - µs LOCKTIMERX PLL lock time to RX With calibration @2.5 ppm - 110 - µs LOCKTIMERXTX PLL lock time RX to TX Without calibration @2.5 ppm - 47 - µs LOCKTIMETXRX PLL lock time TX to RX Without calibration @2.5 ppm - 32 - µs 6.3.14 Flash memory characteristics The characteristics below are guaranteed by design. Table 32. Flash memory characteristics Symbol Parameter Test conditions Typ. Max. Unit tprog 32-bit programming time - 20 40 µs tprog_burst 4x32-bit burst programming time - 4x20 4x40 tERASE Page (2 kbyte) erase time - 20 40 ms tME Mass erase time - 20 40 IDD Average consumption from VDD Write mode 3 - mA Erase mode 3 - Mass erase 5 - BlueNRG-LPS Operating conditions DS13819 - Rev 4 page 45/67 |
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