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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC6946 датащи(PDF) 3 Page - Linear Technology |
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LTC6946 датащи(HTML) 3 Page - Linear Technology |
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3 / 30 page  LTC6946 3 6946fa ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TC = 25°C. VREF+ = VREF0+ = VD+ = VRF+ = 3.3V, VCP+ = VVCO+ = 5V unless otherwise specified (Note 2). All voltages are with respect to GND. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Reference Inputs (REF+, REF–) fREF Input Frequency l 10 250 MHz VREF Input Signal Level Single Ended l 0.5 2 3.3 VP-P Input Slew Rate l 20 V/μs Input Duty Cycle 50 % Self-Bias Voltage l 1.65 1.85 2.25 V Input Resistance Differential l 6.2 8.4 11.6 kΩ Input Capacitance Differential 3 pF Reference Output (REFO) fREFO Output Frequency l 10 250 MHz PREFO Output Power fREFO = 10MHz, RLOAD = 50Ω l –0.2 3.2 dBm Output Impedance, Disabled 800 Ω VCO fVCO Frequency Range LTC6946-1 (Note 3) LTC6946-2 (Note 3) LTC6946-3 (Note 3) l l l 2.240 3.080 3.840 3.740 4.910 5.790 GHz GHz GHz KVCO Tuning Sensitivity LTC6946-1 (Notes 3, 4) LTC6946-2 (Notes 3, 4) LTC6946-3 (Notes 3, 4) 4.7 to 7.2 4.7 to 7.0 4.0 to 6.0 %Hz/V %Hz/V %Hz/V RF Output (RF+, RF–) fRF Output Frequency l 0.373 5.790 GHz O Output Divider Range All Integers Included l 16 Output Duty Cycle 50 % Output Resistance Single Ended, Each Output to VRF+ l 111 136 159 Ω Output Common Mode Voltage l 2.4 VRF+ V PRF(SE) Output Power, Single Ended, fRF = 900MHz RFO[1:0] = 0, RZ = 50Ω, LC Match RFO[1:0] = 1, RZ = 50Ω, LC Match RFO[1:0] = 2, RZ = 50Ω, LC Match RFO[1:0] = 3, RZ = 50Ω, LC Match l l l l –9.7 –6.8 –3.9 –1.2 –6.0 –3.6 –0.4 2.3 dBm dBm dBm dBm Output Power, Muted RZ = 50Ω, Single Ended, fRF = 900MHz, O = 2 to 6 l –60 dBm Mute Enable Time l 110 ns Mute Disable Time l 170 ns Phase/Frequency Detector fPFD Input Frequency l 100 MHz Lock Indicator, Available on the STAT Pin and via the SPI-Accessible Status Register tLWW Lock Window Width LKWIN[1:0] = 0 LKWIN[1:0] = 1 LKWIN[1:0] = 2 LKWIN[1:0] = 3 3.0 10.0 30.0 90.0 ns ns ns ns tLWHYS Lock Window Hysteresis Increase in tLWW Moving from Locked State to Unlocked State 22 % Charge Pump ICP Output Current Range 12 Settings (See Table 5) 0.25 11.2 mA Output Current Source/Sink Accuracy All Settings VCP = VCP+/2 ±6 % Output Current Source/Sink Matching ICP = 250μA to 1.4mA, VCP = VCP+/2 ICP = 2.0mA to 11.2mA, VCP = VCP+/2 ±3.5 ±2 % % |
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