EVALUATION KIT AVAILABLE MAX2871 23.5MHz to 6000MHz Fractional/ Integer-N Synthesizer/VCO General Description Benefits and Features The MAX2871 is an ultra-wideband phase-locked loop (PLL) Output Binary Buffers/Dividers Enable Extended with integrated voltage control oscillators (VCOs) capable Frequency Range of operating in both integer-N and fractional-N modes. Divider Ratios of 1/2/4/8/16/32/64/128 When combined with an external reference oscillator and 23.5MHz to 6000MHz loop filter, the MAX2871 is a high-performance frequency High-Performance Phase Frequency Detector (PFD) synthesizer capable of synthesizing frequencies from and Reference Frequency Reduces Spectral Noise 23.5MHz to 6.0GHz while maintaining superior phase PFD Up to 140MHz noise and spurious performance. Reference Frequency Up to 210MHz The ultra-wide frequency range is achieved with the help of multiple integrated VCOs covering 3000MHz to Low Normalized Inband Phase Noise of -230dBc/Hz 6000MHz, and output dividers ranging from 1 to 128. The Reduces System Noise Floor Contribution device also provides dual differential output drivers, which Manual/Automatic VCO Selection Permits Fast can be independently programmed to deliver -1dBm to Switching +8dBm differential output power. Both outputs can be muted by either software or hardware control. Output Phase Reset and Adjustment Allow The MAX2871 is controlled by a 4-wire serial interface and Synchronization of Multiple Synthesizers is compatible with 1.8V control logic. The device is available On-Chip Temperature Sensor with 7-Bit ADC Ensures in a lead-free, RoHS-compliant, 5mm x 5mm, 32-pin TQFN Optimum VCO Selection package, and operates over an extended -40C to +85C Cycle Slip Reduction and Fast Lock Features temperature range. Improve Accuracy and Acquisition Time The MAX2871 has an improved feature set and better overall phase noise and is fully pin and software-compatible with the VCO Lock Maintained Over Entire Temperature MAX2870. Range Provides Glitch-Free Operation Applications Dual Differential Programmable Outputs Maximize Flexibility of Use Wireless Infrastructure Clock Generation Test and Measurement Microwave Radios Ordering Information and Typical Application Circuit appears at end of data sheet. Functional Diagram MUX MUX MAX2871 LD LOCK DETECT CP OUT MUX R COUNTER DIVIDE-BY-2 MUX CHARGE REF IN X2 PUMP GND CP CLK TUNE DATA SPI AND REGISTERS LE VCO INTEGER FRAC MODULUS RFOUTA P DIV-BY- DIV-BY- RFOUTA N 1/2/4/8/16 1/2/4/8 RFOUT EN MAIN MODULATOR RFOUTB P MUX RFOUTB N N COUNTER MUX 19-7106 Rev 4 6/20MAX2871 23.5MHz to 6000MHz Fractional/ Integer-N Synthesizer/VCO Absolute Maximum Ratings V to GND ......................................................-0.3V to +3.9V Junction Temperature ......................................................+150C CC All Other Pins to GND .............................-0.3V to V + 0.3V Operating Temperature Range ........................... -40C to +85C CC Continuous Power Dissipation (T = +70C) Storage Temperature Range ............................ -65C to +150C A TQFN-EP Multilayer Board Lead Temperature (soldering, 10s) ................................ +300C (derate 34.5mW/C above +70C) .........................2758.6mW Soldering Temperature (reflow) .......................................+260C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. (Note 1) Package Thermal Characteristics TQFN Junction-to-Ambient Thermal Resistance ( ) ..........29C/W Junction-to-Case Thermal Resistance ( ) ..............1.7C/W JA JC Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. DC Electrical Characteristics (Measured using MAX2871 EV Kit. V = 3V to 3.6V, V = 0V, f = 50MHz, f = 50MHz, T = -40C to +85C. Typical CC GND REF IN PFD A values measured at V = 3.3V T = +25C register settings (Reg 0:5) 00780000, 20000141, 01005E42, 00000013, 610F423C, CC A 01400005 . unless otherwise noted.) (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Voltage 3 3.3 3.6 V I , minimum output power, single channel 9 RFOUT RFOUT Current Consumption mA I , maximum output power, single channel 25 RFOUT Total, including RFOUT, both 165 200 channel (Note 3) Both channels enabled, Each output divide-by-2 8 Supply Current mA maximum output I + I (Note 3) 122 CCVCO CCRF power Low-power sleep mode 1 AC Electrical Characteristics (Measured using MAX2871 EV Kit. V = 3V to 3.6V, V = 0V, f = 50MHz, f = 25MHz, f = 6000MHz, CC GND REF IN PFD RFOUT T = -40C to +85C. Typical values measured at V = 3.3V, T = +25C, register settings (Reg 0:5) 00780000, 20000141, A CC A 01005E42, 00000013, 610F423C, 01400005 unless otherwise noted.) (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS REFERENCE OSCILLATOR INPUT (REF IN) REF IN Input Frequency Range 10 210 MHz REF IN Input Sensitivity 0.7 V V CC P-P REF IN Input Capacitance 2 pF REF IN Input Current -60 +60 A PHASE DETECTOR Integer-N mode 140 Phase Detector Frequency MHz Fractional-N mode 125 Maxim Integrated 2 www.maximintegrated.com