RF2053 RF2053 HIGH PERFORMANCE FRACTIONAL-N SYNTHESIZER WITH INTEGRATED RF MIXER Package: QFN, 32-Pin, 5mmx5mm LO Features divider Fractional-N Synthesizer Very Fine Frequency Resolution 1.5Hz for 26MHz Reference Synth Frac-N 300MHz to 2400MHz External N sequence VCO Frequency Range divider generator On-Chip Crystal-Sustaining Phase / Charge Circuit With Programmable freq pump Loading Capacitors detector Integrated LO Buffer and LO Ref Divider divider High-Linearity RF Mixer Mixer Input IP3 +23dBm Typ. Functional Block Diagram Mixer Bias Adjustable for Low Power Operation Product Description Mixer Frequency Range 30MHz The RF2053 is a low power, high performance, wideband RF frequency conversion to 2500MHz chip with integrated local oscillator (LO) generation and RF mixer. The RF synthe- sizer includes an integrated fractional-N phase locked loop that can control an 2.7V to 3.6V Power Supply external VCO to produce a low-phase noise LO signal with a very fine frequency res- Low Current Consumption olution. The VCO output frequency can be divided by 1, 2, or 4 in the LO divider, 50mA to 70mA at 3V whose output is buffered and drives the built-in RF mixer which converts the signal 3-Wire Serial Interface into the required frequency band. The mixer bias current can be programmed dependent on the required performance and available supply current. The LO gen- Applications eration blocks have been designed to operate with external VCOs covering the fre- quency range from 300MHz to 2400MHz. The RF mixer is very broad band and CATV Head-Ends operates from 30MHz to 2500MHz at the input and output, enabling both up and Digital TV Up/Down Converters down conversion. An external crystal of between 10MHz and 52MHz or an external reference source of between 10MHz and 104MHz can be used with the RF2053 to Digital TV Repeaters accommodate a variety of reference frequency options. Multi-Dwelling Units All on-chip registers are controlled through a simple three-wire serial interface. The Frequency Band Shifters RF2053 is designed for 2.7V to 3.6V operation for compatibility with portable, bat- tery powered devices. It is available in a plastic 32-pin, 5mmx5mm QFN package. UHF/VHF Radios Software Defined Radios Satellite Communications Super-Heterodyne Radios Optimum Technology Matching Applied GaAs HBT SiGe BiCMOS GaAs pHEMT GaN HEMT GaAs MESFET Si BiCMOS Si CMOS RF MEMS InGaP HBT SiGe HBT Si BJT LDMOS RF MICRO DEVICES, RFMD, Optimum Technology Matching, Enabling Wireless Connectivity, PowerStar, POLARIS TOTAL RADIO and UltimateBlue are trademarks of RFMD, LLC. BLUETOOTH is a trade- mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. 2006, RF Micro Devices, Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical DS140110 support, contact RFMD at (+1) 336-678-5570 or sales-support rfmd.com. 1 of 36 MixerNC NC RFOPN RFOPP RESETB ENX SCLK SDATA - + RF2053 Detailed Functional Block Diagram IP ANA VDD DIG VDD RFIPN ENBL CONTROL MODE RFIPP 1:1 RESETB ANA DEC ANA VDD SDATA RFOPP SERIAL OP SCLK BUS Analog Digital Serial Data Interface, ENX Regulator Regulator Control and Biasing RFOPN 4:1 REXT Mixer LO Divider EXTERNAL VCO /1, /2, or /4 VCOINP Vtune LO Buffer VCOINN VCO Buffer 1:1 Frac-N Sequence N Divider Generator Synthesizer Phase / LFILT1 Charge Freq Pump Vref Detector EXTERNAL OP-AMP XTALIPP Reference Oscillator Reference Divider Circuitry and /1 to /7 Crystal Tuning XTALIPN Pin Out 32 31 30 29 28 27 26 25 ENBL 1 24 RFIPP VCOINP 2 23 RFIPN VCOINN 3 22 ANA VDD REXT 4 21 NC EP ANA DEC 5 20 NC LFILT1 6 19 DIG VDD NC 7 18 NC NC 8 17 NC 9 10 11 12 13 14 15 16 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical 2 of 36 support, contact RFMD at (+1) 336-678-5570 or sales-support rfmd.com. DS140110 MODE XTALIPP XTALIPN GND NC NC NC NC