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TRF2020PW Datasheet(PDF) 5 Page - Texas Instruments |
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TRF2020PW Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 26 page  TRF2020 SYNTHESIZER FOR GLOBAL SYSTEM FOR MOBILE (GSM) CELLULAR TELEPHONES SLWS020B – FEBRUARY 1995 – REVISED JANUARY 1998 5 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 reference divider, REF_IN PARAMETER TEST CONDITIONS MIN TYP MAX UNIT fREF_IN Input signal frequency 2.75 ≤ VDDP ≤ 3.5 V 40 MHz VREF_IN Input sensitivity 0.3 VDDP – 0.8 Vp–p ZREF IN Input impedance Resistive 100 k Ω ZREF_IN Input impedance Capacitive 3 pF charge pump characteristics main charge pump output PARAMETER TEST CONDITIONS† MIN TYP MAX UNIT |IPDM| Output current PDM normal mode VPDM =0 5VDDA 400 500 600 µA |IPDM| Output current PDM speed-up mode VPDM = 0.5 VDDA 1.5 2 2.5 mA D I PDM |I PDM| Relative output current variation PDM (see Figure 1) RPM 5% tolerance, VSSA + 0.5 ≤ VPDM ≤ VDDA – 0.5 15 % ∆IPDM Output current matching (see Figure 1) VPDM = 0.5 VDDA 8 % |ISWM| Analog switch output current SWM, speed-up mode VSWM = 0.5 VDDA 1.5 2 2.5 mA † RPM = RPA = 27 k Ω to VSSA, F = K = 10. auxiliary-1 charge pump output PARAMETER TEST CONDITIONS† MIN TYP MAX UNIT |IPDA1| Output current PDA1 normal mode VPDA1 =0 5VDDA 400 500 600 µA |IPDA1| Output current PDA1 speed-up mode VPDA1 = 0.5 VDDA 1.5 2 2.5 mA D I PDA1 |I PDA1| Relative output current variation PDA1 (see Figure 1) RPA 5% tolerance VSSA + 0.5 ≤ VPDA1 ≤ VDDA – 0.5 15 % ∆IPDA1 Output current matching (see Figure 1) VPDA1 = 0.5 VDDA 8 % |ISW1| Analog switch output current SW1, speed-up mode VSW1 = 0.5 VDDA 1.5 2 2.5 mA † RPM = RPA = 27 k Ω to VSSA, F = K = 10. auxiliary-2 charge pump output PARAMETER TEST CONDITIONS† MIN TYP MAX UNIT |IPDA2| Output current PDA2 normal mode VPDA2 =0 5VDDA 400 500 600 µA |IPDA2| Output current PDA2 speed-up mode VPDA2 = 0.5 VDDA 1.5 2 2.5 mA D I PDA2 |I PDA2| Relative output current variation PDA2 (see Figure 1) RPA 5% tolerance VSSA + 0.5 ≤ VPDA2 ≤ VDDA – 0.5 15 % ∆IPDA2 Output current matching (see Figure 1) VPDA2 = 0.5 VDDA 8 % |ISW2| Analog switch output current SW2, speed-up mode VSW2 = 0.5 VDDA 1.5 2 2.5 mA † RPM = RPA = 27 k Ω to VSSA, F = K = 10. |
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