MAX9993 19-2596 Rev 0 10/02 High-Linearity 1700MHz to 2200MHz Down- Conversion Mixer with LO Buffer/Switch General Description Features The MAX9993 high-linearity down-conversion mixer +23.5dBm Input IIP3 provides 8.5dB of gain, +23.5dBm IIP3, and 9.5dB NF 1700MHz to 2200MHz RF Frequency Range for UMTS, DCS, and PCS base-station applications. 40MHz to 350MHz IF Frequency Range The MAX9993 integrates baluns in the RF and LO ports, a dual-input LO selectable switch, an LO buffer, a dou- 1400MHz to 2000MHz LO Frequency Range ble-balanced mixer, and a differential IF output amplifi- er. The MAX9993 requires a typical LO drive of +3dBm, 8.5dB Conversion Gain and supply current is guaranteed to below 230mA. 9.5dB Noise Figure The MAX9993 is available in a compact 20-pin thin Integrated LO Buffer QFN package (5mm 5mm) with an exposed pad. Electrical performance is guaranteed over the extended Switch-Selectable (SPDT), Two LO Inputs -40C to +85C temperature range. Low 0 to +6dBm LO Drive The MAX9993 EV kit is available contact the factory for 40dB LO1-to-LO2 Isolation more information. Applications Ordering Information UMTS and 3G Base Stations PART TEMP RANGE PIN-PACKAGE DCS1800 and EDGE Base Stations MAX9993ETP-T -40C to 85C 20 Thin QFN-EP* PCS1900 Base Stations *EP = Exposed pad. Point-to-Point Microwave Systems Wireless Local Loop Private Mobile Radio Military Systems Pin Configuration/Functional Diagram TOP VIEW V 1 15 LO2 CC RF 2 14 GND 13 GND TAP 3 MAX9993 GND GND 4 12 11 GND 5 LO1 THIN QFN Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. V 6 IFBIAS CC 20 19 LOBIAS 7 IF+ V 8 18 IF- CC 17 GND LOSEL 9 16 LEXT GND 10High-Linearity 1700MHz to 2200MHz Down- Conversion Mixer with LO Buffer/Switch ABSOLUTE MAXIMUM RATINGS V ..........................................................................-0.3V to 5.5V Continuous Power Dissipation (T = +70C) CC A RF (RF is DC shorted to GND through balun).....................50mA 20-Lead Thin QFN LO1, LO2 to GND ...............................................................0.3V (derate 30.3mW/C above T = +70C) ....................2200mW A TAP, IF+, IF- to GND ..................................-0.3V to (V + 0.3V) ....................................................................................33C/W CC JA LOSEL to GND ................................-0.3V to (V (pin 8) + 0.3V) Operating Temperature Range ...........................-40C to +85C CC LOBIAS, IFBIAS, LEXT to GND ..................-0.3V to (V + 0.3V) Storage Temperature Range .............................-65C to +150C CC RF and LO Input Power..................................................+22dBm Lead Temperature (soldering, 10s) .................................+300C 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. DC ELECTRICAL CHARACTERISTICS (Typical Operating Circuit as shown, no input RF or LO signals applied. V = 4.75V to 5.25V, T = -40C to +85C. Typical values are CC A at V = 5.0V and T = +25C, unless otherwise noted.) CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V 4.75 5.00 5.25 V CC Total supply current 202 230 Supply Current I V (pin 8) 87 105 mA CC CC IF+/IF- (total of both) 103 133 LOSEL Input High Voltage V 2.0 V IH LOSEL Input Low Voltage V 0.8 V IL LOSEL Input Current I and I -5 +5 A IL IH AC ELECTRICAL CHARACTERISTICS (Typical Operating Circuit, 4.75V < V < 5.75V, -40C < T < +85, RF and LO ports are driven from 50 sources, 0dBm < P < CC A LO +6dBm, P = -5dBm, 1700MHz < f < 2200MHz, 1400MHz < f < 2000MHz, f = 200MHz. Typical values are for T = +25C RF RF LO IF A V = 5.0V, P = +3dBm, f = 1900MHz, f = 1700MHz, 200MHz IF.) (Notes 1, 2) CC LO RF LO PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS RF Frequency f 1700 2200 MHz RF LO Frequency f (Note 6) 1400 2000 MHz LO IF Frequency f 50 350 MHz IF Conversion Gain G (Note 3) 8.5 dB C Gain Variation Over Temperature T = -40C to +85C 0.0012 dB/C A Gain Variation from Nominal (3) 0.45 dB Input Compression Point P 12.6 dBm 1dB Two RF tones: -5dBm each at 1950MHz 24 and 1951MHz, LO: +3dBm at 1750MHz Input Third-Order Intercept Point IIP3 dBm (Note 3) Two RF tones: -5dBm each at 2200MHz 23 and 2201MHz, LO: +3dBm at 2000MHz 2 MAX9993