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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HT82K75REW датащи(PDF) 8 Page - Holtek Semiconductor Inc |
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HT82K75REW датащи(HTML) 8 Page - Holtek Semiconductor Inc |
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8 / 103 page  RF Transceiver D.C. Characteristics VDD=3V, Ta=25 °C Symbol Test Conditions Min. Typ. Max. Unit ITX RF Transceiver TX Active. At 0 dBm output power DC-DC Off* ¾ 21 30 mA IRX RF Transceiver RX Active in Normal Mode (250 Kbps) DC-DC Off* ¾ 19 28 mA RF Transceiver RX Active in Turbo Mode (1M bps) DC-DC Off* ¾ 21 30 mA ISTB RF Transceiver in STANDBY mode. Partial 32MHz clock and Sleep clock remains active. RF/MAC/BB, system clock shutdown. ¾ 60 80 mA IDS RF Transceiver in DEEP_SLEEP mode. Power to digital circuit re- mains active to retain Registers and FIFOs. All the other power is shutdown. ¾ 3.2 10.0 mA IPD RF Transceiver in POWER_DOWN mode. Minimum wake-up cir- cuit remains active. All power is shutdown. Register and FIFO data are not retained. ¾ 0.6 2.0 mA Note: ²*² The operating current ITX or IRX listed here is the additional current consumed when the RF Transceiver op- erates in Active TX mode or Active RX mode. If the RF Transceiver is active, either ITX or IRX should be added to calculate the relevant operating current of the device for different operating mode. To calculate the standby current for the whole device, the standby current shown above including ISTB,IDS and IPD should be taken into account for different Power Saving Mode. RF Transceiver A.C. Characteristics VDD=3V, Ta=25 °C, LO frequency=2.445GHz, DC-DC Off Receiver Parameters Test Conditions Min. Typ. Max. Unit RF Input Frequency ¾ 2.400 ¾ 2.495 GHz RF Sensitivity At antenna input with O-QPSK signal, PER £ 0.1% 250Kbps ¾ -90 ¾ dBm 1 Mbps ¾ -80 ¾ dBm Maximum RF Input ¾¾ 5 ¾ dBm Adjacent Channel Rejection @ ±5MHz, 250Kbps (-82dBm + 20 dB = -62dBm) ¾ 20 -62 ¾ dBc dBm Alternative Channel Rejection @ ±10 MHz, 250Kbps (-82dBm + 40 dB = -42dBm) ¾ 40 -42 ¾ dBc dBm LO Leakage Measured at the balun matching the network with the input frequency at 2.4~2.5GHz ¾ -60 ¾ dBm Noise figure (Including matching) ¾¾ 8 ¾ dB HT82M75REW/HT82K75REW Rev. 1.00 8 June 11, 2010 |
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