MAX19995A 19-4419 Rev 0 1/09 Dual, SiGe, High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch General Description Features The MAX19995A dual-channel downconverter is 1700MHz to 2200MHz RF Frequency Range designed to provide 8.7dB of conversion gain, 1750MHz to 2700MHz LO Frequency Range +24.8dBm input IP3, +13.5dBm 1dB input compression point, and a noise figure of 9.2dB for 1700MHz to 50MHz to 500MHz IF Frequency Range 2200MHz diversity receiver applications. With an opti- 8.7dB Typical Conversion Gain mized LO frequency range of 1750MHz to 2700MHz, this mixer is ideal for high-side LO injection architectures. 9.2dB Typical Noise Figure Low-side LO injection is supported by the MAX19995, +24.8dBm Typical Input IP3 which is pin-pin and functionally compatible with the MAX19995A. +13.5dBm Typical Input 1dB Compression Point In addition to offering excellent linearity and noise per- 64dBc Typical 2LO-2RF Spurious Rejection at formance, the MAX19995A also yields a high level of P = -10dBm RF component integration. This device includes two double- balanced passive mixer cores, two LO buffers, a dual- Dual Channels Ideal for Diversity Receiver input LO selectable switch, and a pair of differential IF Applications output amplifiers. Integrated on-chip baluns allow for sin- 48dB Typical Channel-to-Channel Isolation gle-ended RF and LO inputs. The MAX19995A requires a nominal LO drive of 0dBm and a typical supply current of Low -3dBm to +3dBm LO Drive 350mA at V = 5.0V, or 242mA at V = 3.3V. CC CC Integrated LO Buffer The MAX19995/MAX19995A are pin compatible with the Internal RF and LO Baluns for Single-Ended MAX19985/MAX19985A series of 700MHz to 1000MHz mixers and pin similar to the MAX19997A/MAX19999 Inputs series of 1800MHz to 4000MHz mixers, making this Built-In SPDT LO Switch with 48dB LO-to-LO entire family of downconverters ideal for applications Isolation and 50ns Switching Time where a common PCB layout is used across multiple frequency bands. Pin Compatible with the MAX19985/MAX19985A/ The MAX19995A is available in a 6mm x 6mm, 36-pin MAX19995 Series of 700MHz to 2200MHz Mixers thin QFN package with an exposed pad. Electrical per- Pin Similar to the MAX19997A/MAX19999 Series formance is guaranteed over the extended temperature of 1800MHz to 4000MHz Mixers range (T = -40C to +85C). C Single 5.0V or 3.3V Supply Applications External Current-Setting Resistors Provide Option UMTS/WCDMA Base Stations for Operating Device in Reduced-Power/Reduced- LTE/WiMAX Base Stations Performance Mode TD-SCDMA Base Stations Ordering Information DCS1800/PCS1900 and GSM/EDGE Base Stations PART TEMP RANGE PIN-PACKAGE MAX19995AETX+ -40C to +85C 36 Thin QFN-EP* cdma2000 Base Stations MAX19995AETX+T -40C to +85C 36 Thin QFN-EP* Fixed Broadband Wireless Access +Denotes a lead(Pb)-free/RoHS-compliant package. Wireless Local Loop *EP = Exposed pad. Private Mobile Radios T = Tape and reel. Military Systems WiMAX is a trademark of WiMAX Forum. Pin Configuration/Functional Diagram appears at end of cdma2000 is a registered trademark of Telecommunications data sheet. Industry Association. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Dual, SiGe, High-Linearity, 1700MHz to 2200MHz Downconversion Mixer with LO Buffer/Switch ABSOLUTE MAXIMUM RATINGS V to GND...........................................................-0.3V to +5.5V (Notes 2, 3)..............................................................+38C/W CC JA LO1, LO2 to GND..................................................-0.3V to +0.3V (Notes 1, 3)...............................................................7.4C/W JC LOSEL to GND ...........................................-0.3V to (V + 0.3V) Operating Case Temperature Range (Note 4) ....-40C to +85C CC RFMAIN, RFDIV, and LO Input Power..........................+15dBm Junction Temperature......................................................+150C RFMAIN, RFDIV Current (RF is DC shorted to GND Storage Temperature Range .............................-65C to +150C through a balun)..............................................................50mA Lead Temperature (soldering, 10s) .................................+300C Continuous Power Dissipation (Note 1) ...............................8.7W Note 1: Based on junction temperature T = T + ( x V x I ). This formula can be used when the temperature of the exposed J C JC CC CC pad is known while the device is soldered down to a PCB. See the Applications Information section for details. The junction temperature must not exceed +150C. Note 2: Junction temperature T = T + ( x V x I ). This formula can be used when the ambient temperature of the PCB is J A JA CC CC known. The junction temperature must not exceed +150C. Note 3: 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.maxim-ic.com/thermal-tutorial. Note 4: T is the temperature on the exposed pad of the package. T is the ambient temperature of the device and PCB. C A 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. 5.0V SUPPLY DC ELECTRICAL CHARACTERISTICS (Typical Application Circuit, V = 4.75V to 5.25V, no input AC signals. T = -40C to +85C, R1 = R4 = 681, R2 = R5 = 1.5k. CC C Typical values are at V = 5.0V, T = +25C, unless otherwise noted. All parameters are production tested.) CC C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V 4.75 5 5.25 V CC Supply Current I Total supply current, V = 5.0V 350 410 mA CC CC LOSEL Input High Voltage V 2V IH LOSEL Input Low Voltage V 0.8 V IL LOSEL Input Current I I -10 +10 A IH and IL 3.3V SUPPLY DC ELECTRICAL CHARACTERISTICS (Typical Application Circuit, V = 3.0V to 3.6V, no input AC signals. T = -40C to +85C, R1 = R4 = 909, R2 = R5 = 1k. Typical CC C values are at V = 3.3V, T = +25C, unless otherwise noted. Parameters are guaranteed by design and not production tested.) CC C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V 3.0 3.3 3.6 V CC Supply Current I Total supply current 242 300 mA CC LOSEL Input High Voltage V 2V IH LOSEL Input Low Voltage V 0.8 V IL 2 MAX19995A