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ML2724DH Scheda tecnica(PDF) 5 Page - Micro Linear Corporation |
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ML2724DH Scheda tecnica(HTML) 5 Page - Micro Linear Corporation |
5 / 26 page ML2724 DS2724-F-03 FINAL DATASHEET DECEMBER 2005 5 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS fFREF Reference signal frequency 6.144 12.288 MHz MHz VFREF Reference signal input level 6.144MHz or 12.288MHz sine wave, capacitively coupled 2.0 VCCA VPP RECEIVER ZIN Receiver input impedance fc=2445MHz 2.2+j0 Ω NF Receiver noise figure fc=2445MHz 16.5 dB DRRX Data Rate FSK modulation, fdev=+/-512kHz 1.536 Mbps S Input Sensitivity <12.5% CER at 1.536Mchip/s <0.1% BER at 1.536Mbps -82 -90 -81 dBm dBm BWRX Bandwidth 3dB Bandwidth 770 kHz PIMAX Maximum RX RF input <12.5% CER at 1.536Mchip/s <0.1% BER at 1.536Mb/s +5 -4 dBm dBm IIP3 Receiver Input IP3 Test tones 2 and 4 channels away -15 dBm LO leakage at RXI -60 dBm IRR Mixer Image Rejection Ratio Measured at 3.5MHz offset 35 dB Adjacent channel rejection -80dBm wanted signal <10 -3 BER Single 2GFSK modulated interferer with a 1.5MHz –20dBc bandwidth 1 channel away 2 channels away 3 or more channels away 6 31 36 dB dB dB IF FILTERS fIFC IF filter center frequency After Automatic Filter Alignment 1.024 MHz BWIF IF filter 3dB bandwidth After Automatic Filter Alignment 1405 kHz LIMITER, AGC, AND FM DEMODULATOR tOVLD Recovery from overload From +15dBm at input 5 12 μs Eb/No For 0.1% BER 10.5 dB Co-Channel rejection, 0.1% BER -80 dBm, modulated with 1.536Mbps GFSK, BT=0.5, PRBS data 10.5 dB VODC Quiescent voltage @ AOUT 1.1 V VOPK Output voltage swing AOUT 0.55 1.1 VPP VOL AOUT open-drain voltage IO=100μA, TPC Mode 0.4 V RSSI PERFORMANCE tRRSSI RSSI rise time No Signal to -15dBm into the IF mixer 20pF load, 20% to 80% 4.5 μs tFRSSI RSSI fall time, < -15dBm to No Signal into the IF mixer 20pF load, 20% to 80% 3.0 μs GRSMID RSSI sensitivity (V-40dBm – V-60dBm)/20dB 28 36 42 mV/dB VRSMX RSSI maximum voltage See Figure 3 1.8 2.3 V VRSMD RSSI midrange voltage -40dBm into RXI 1.4 1.7 2.0 V |
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