MAX2870 23.5MHz to 6000MHz Fractional/ Integer-N Synthesizer/VCO General Description Benefits and Features The MAX2870 is an ultra-wideband phase-locked U Integer and Fractional-N Modes loop (PLL) with integrated voltage control oscillators U Manual or Automatic VCO Selection (VCOs) capable of operating in both integer-N and U 3000MHz to 6000MHz Fundamental VCO fractional-N modes. When combined with an external reference oscillator and loop filter, the MAX2870 is U Output Binary Buffers/Dividers for Extended a high-performance frequency synthesizer capable Frequency Range of synthesizing frequencies from 23.5MHz to 6.0GHz 1/2/4/8/16/32/64/128 while maintaining superior phase noise and spurious 23.5MHz to 6000MHz performance. U High-Performance PFD The ultra-wide frequency range is achieved with the help of multiple integrated VCOs covering 3000MHz to 105MHz in Integer-N Mode 6000MHz, and output dividers ranging from 1 to 128. 50MHz in Fractional-N Mode The device also provides dual differential output drivers, U Reference Frequency Up to 200MHz which can be independently programmable to deliver -4dBm to +5dBm output power. Both outputs can be U Operates from +3.0V to +3.6V Supply muted by either software or hardware control. U Dual Programmable Outputs The MAX2870 is controlled by a 4-wire serial interface and -4dBm to +5dBm is compatible with 1.8V control logic. The device is available U Analog and Digital Lock Detect Indicators in a lead-free, RoHS-compliant, 5mm x 5mm, 32-pin TQFN package, and operates over an extended -40NC to +85NC U Hardware and Software Shutdown Control temperature range. U Compatible with 1.8V Control Logic Applications Wireless Infrastructure PMAR/LMAR/Public Ordering Information appears at end of data sheet. Safety Radio Test and Measurement Clock Generation Typical Application Circuit appears at end of data sheet. Satellite Communications Wireless LANs/CATV Functional Diagram MUX OUT MUX MAX2870 LD LOCK DETECT CP OUT MUX R COUNTER DIVIDE-BY-2 MUX CHARGE REF IN X2 PUMP CP GND CLK TUNE SPI AND DATA 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 19-6250 Rev 6 4/17MAX2870 23.5MHz to 6000MHz Fractional/ Integer-N Synthesizer/VCO Absolute Maximum Ratings V to GND .......................................................-0.3V to +3.9V Junction Temperature .....................................................+150NC CC Operating Temperature Range .......................... -40NC to +85NC All Other Pins to GND .............................. -0.3V to V + 0.3V CC Continuous Power Dissipation (T = +70NC) Storage Temperature Range ............................ -65NC to +150NC A Lead Temperature (soldering, 10s) .............................. +300NC TQFN-EP Multilayer Board (derate 34.5mW/NC above +70NC) .........................2758.6mW Soldering temperature (reflow) .......................................+260NC Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional opera- tion 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. Package Thermal Characteristics (Note 1) TQFN Junction-to-Ambient Thermal Resistance (B ) ..........29NC/W Junction-to-Case Thermal Resistance (B ) ..................1.7NC/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 MAX2870 EV Kit. V = 3V to 3.6V, V = 0V, f = 50MHz, f = 25MHz, T = -40NC to +85NC. Typical CC GND REF IN PFD A values measured at V = 3.3V T = +25NC register settings (Reg 0:5) 00780000,20000141,01005E42,00000013,610F42 CC A 3C,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 8.5 RFOUT RFOUT Current Consumption mA I , maximum output power, single channel 25 29 RFOUT Total, including RFOUT, both 144 180 Both channels channel (Note 3) enabled, Supply Current Each output divide-by-2 10 15 mA maximum I + I (Note 3) 75 95 CCVCO CCRF output power Low-power sleep mode 1 AC Electrical Characteristics (Measured using MAX2870 EV Kit. V = 3V to 3.6V, V = 0V, f = 50MHz, f = 25MHz, f = 6000MHz, CC GND REF IN PFD RFOUT T = -40NC to +85NC. Typical values measured at V = 3.3V, T = +25NC, register settings (Reg 0:5) 00780000,20000141,01005E42 A CC A ,00000013,610F423C,01400005 unless otherwise noted.) (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS REFERENCE OSCILLATOR INPUT (REF IN) REF IN Input Frequency Range 10 200 MHz REF IN Input Sensitivity 0.7 VCC VPP REF IN Input Capacitance 2 pF REF IN Input Current -60 +60 FA PHASE DETECTOR Integer-N mode 105 Phase Detector Frequency MHz Fractional-N mode 50 Maxim Integrated 2 www.maximintegrated.com