전자부품 데이터시트 검색엔진 |
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RF212 데이터시트(PDF) 4 Page - List of Unclassifed Manufacturers |
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RF212 데이터시트(HTML) 4 Page - List of Unclassifed Manufacturers |
4 / 9 page RF212 Image-Reject Front End 4 Conexant 100780D May 24, 2000 Proprietary Information and Specifications are Subject to Change Table 5. Absolute Maximum Ratings Parameter Minimum Maximum Units Storage Temperature −40 +125 °C Supply Voltage (VCC) −0.3 +3.6 V Input Voltage Range −0.3 Vcc V Table 6. RF212 Recommended Operating Conditions Parameter Min Typical Max Units Supply Voltage 2.7 3.0 3.6 V Operating Temperature −30 +25 +85 °C Table 7. RF212 Electrical Specifications (1 of 3) (TA = 25 °°°°C, Vcc = 2.7 V, fIF = 400 MHz, Plo = −−−−10 dBm) Parameter Symbol Test Condition Min Typical Max Units EGSM900 Mode Supply current:: Enable mode Sleep mode ENA = 1 ENA = 0 15 30 mA µA RF Input frequency 925 960 MHz IF frequency fIF 350 400 450 MHz LO to RF input isolation 30 dB Input impedance 50 Ω Power gain (for 2 k Ω differential output impedance): High gain mode Low gain mode 1 Low gain mode 2 Gain step 1 Gain step 2 Temperature coefficient Gain variation versus frequency GMAX1 GMIN1 GMIN2 GSTEP1 GSTEP2 FTC1 GAINSEL = 0 GAINSEL = 1, STEPSEL = 1 GAINSEL = 1, STEPSEL = 0 20 –24 –14 22 0 10 –22 –12 –0.02 25 –20 –10 0.8 dB dB dB dB dB dB/ °C dB Noise figure: High gain Low gain mode 1 Low gain mode 2 GAINSEL = 0 GAINSEL = 1, STEPSEL = 1 GAINSEL = 1, STEPSEL = 0 2.3 18 10 3.5 dB dB dB Noise figure degradation with blocker: High gain −22 dBm blocker, GAINSEL = 0 (Note 1) 1.6 dB Input 1 dB compression point IP1DB high gain mode low gain mode −22 −18 –20 –13 dBm dBm Input third order intercept point IP3 −12 dBm Differential IF shunt output resistance 2 k Ω Image rejection: fIF = 400 MHz fIF = 350 or 450 MHz 35 25 50 dB dB |
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