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MAX2837 Datasheet(PDF) 7 Page - Maxim Integrated Products |
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MAX2837 Datasheet(HTML) 7 Page - Maxim Integrated Products |
7 / 18 page 2.3GHz to 2.7GHz Wireless Broadband RF Transceiver _______________________________________________________________________________________ 7 AC ELECTRICAL CHARACTERISTICS—FREQUENCY SYNTHESIS (MAX2837 evaluation kit: VCC_ = 2.8V, fLO = 2.5GHz, fREF = 40MHz, ENABLE = CS = high, SCLK = DIN = low, PLL loop bandwidth = 120kHz, TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX UNITS FREQUENCY SYNTHESIZER RF Channel Center Frequency 2.3 2.7 GHz Channel Center Frequency Programming Minimum Step Size 20 Hz Charge-Pump Comparison Frequency 11 40 MHz Reference Frequency Range 11 40 80 MHz Reference Frequency Input Levels AC-coupled to XTAL2 pin 800 mVP-P Resistance (XTAL2 pin) 10 k Reference Frequency Input Impedance (R || C) Capacitance (XTAL2 pin) 1 pF Programmable Reference Divider Values 1 2 4 Closed-Loop Integrated Phase Noise Loop BW = 120kHz; integrate phase noise from 200Hz to 5MHz, charge-pump comparison frequency = 40MHz -39 dBc Charge-Pump Output Current On each differential side 1.6 mA fOFFSET = 0 to 1.8MHz -40 fOFFSET = 1.8MHz to 7MHz -70 Close-In Spur Level fOFFSET > 7MHz -80 dBc Reference Spur Level -85 dBc Turnaround LO Frequency Error Relative to steady state; measured 35μs after Tx-Rx or Rx-Tx switching instant, and 4μs after any receiver gain changes ±50 Hz Temperature Range over Which VCO Maintains Lock Relative to the ambient temperature TA, as long as the VCO lock temperature range is within operating temperature range TA ±40 °C Reference Output Clock Divider Values 1 2 Output Clock Drive Level 20MHz output, 1x drive setting 1.5 VP-P Resistance 10 k Output Clock Minimum Load Impedance (R || C) Capacitance 2 pF |
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Similar Description - MAX2837 |
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