MAX19998 19-4827 Rev 0 10/09 SiGe, High-Linearity, 2300MHz to 4000MHz Downconversion Mixer with LO Buffer General Description Features The MAX19998 single, high-linearity downconversion S 2300MHz to 4000MHz RF Frequency Range mixer provides 8.7dB of conversion gain, +24.3dBm S 2600MHz to 4300MHz LO Frequency Range input IP3, +11.3dBm 1dB input compression point, S 50MHz to 500MHz IF Frequency Range and a noise figure of 9.7dB for 2300MHz to 4000MHz S 8.7dB Conversion Gain WiMAXK, LTE, and MMDS receiver applications. With an ultra-wide LO 2600MHz to 4300MHz frequency S 9.7dB Noise Figure range, the MAX19998 can be used in either low-side S +24.3dBm Typical Input IP3 or high-side LO injection architectures for virtually all S +11.3dBm Typical Input 1dB Compression Point 2.5GHz and 3.5GHz applications. For a 2.5GHz vari- ant tuned specifically for high-side injection, refer to the S 67dBc Typical 2RF - 2LO Spurious Rejection at MAX19996A. P = -10dBm RF In addition to offering excellent linearity and noise per- S Integrated LO Buffer formance, the MAX19998 also yields a high level of S Integrated RF and LO Baluns for Single-Ended component integration. This device includes a double- Inputs balanced passive mixer core, an IF amplifier, and an LO S Low -3dBm to +3dBm LO Drive buffer. On-chip baluns are also integrated to allow for single-ended RF and LO inputs. The MAX19998 requires S Pin Compatible with the MAX19996/MAX19996A a nominal LO drive of 0dBm, and supply current is typi- 2000MHz to 3900MHz Mixers cally 230mA at V = 5.0V or 150mA at V = 3.3V. CC CC S Pin Similar with the MAX9984/MAX9986/ The MAX19998 is pin compatible with the MAX19996/ MAX9986A Series of 400MHz to 1000MHz Mixers MAX19996A 2000MHz to 3900MHz mixer family. The and the MAX9993/MAX9994/MAX9996 Series of device is also pin similar with the MAX9984/MAX9986/ 1700MHz to 2200MHz Mixers MAX9986A 400MHz to 1000MHz mixers and the S Single 5.0V or 3.3V Supply MAX9993/MAX9994/MAX9996 1700MHz to 2200MHz S External Current-Setting Resistors Provide Option mixers, making this entire family of downconverters ideal for Operating Device in Reduced-Power/Reduced- for applications where a common PCB layout is used for Performance Mode multiple frequency bands. The MAX19998 is available in a compact, 5mm x 5mm, 20-pin thin QFN with an exposed pad. Electrical perfor- mance is guaranteed over the extended -40NC to +85NC temperature range. Ordering Information Applications PART TEMP RANGE PIN-PACKAGE 2.5GHz WiMAX and LTE Base Stations MAX19998ETP+ -40NC to +85NC 20 Thin QFN-EP* 2.7GHz MMDS Base Stations MAX19998ETP+T -40NC to +85NC 20 Thin QFN-EP* 3.5GHz WiMAX and LTE Base Stations +Denotes a lead(Pb)-free/RoHS-compliant package. *EP = Exposed pad. Fixed Broadband Wireless Access T = Tape and reel. Wireless Local Loop Private Mobile Radios Military Systems WiMAX is a trademark of WiMAX Forum. 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. EVALUATION KIT AVAILABLESiGe, High-Linearity, 2300MHz to 4000MHz Downconversion Mixer with LO Buffer ABSOLUTE MAXIMUM RATINGS V to GND ..........................................................-0.3V to +5.5V B (Notes 2, 3) ............................................................ +38NC/W CC JA IF+, IF-, LOBIAS, IFBIAS to GND ............. -0.3V to (V + 0.3V) B (Notes 1, 3) ............................................................ +13NC/W CC JC RF, LO Input Power .......................................................+12dBm Operating Case Temperature Range RF, LO Current (Note 4) .................................................. T = -40NC to +85NC C (RF and LO is DC shorted to GND through balun) ........50mA Junction Temperature .....................................................+150NC Continuous Power Dissipation (Note 1) .................................5W Storage Temperature Range ............................ -65NC to +150NC Lead Temperature (soldering, 10s) ................................+300NC Note 1: Based on junction temperature T = T + (B x V x I ). This formula can be used when the temperature of the J C JC CC CC exposed 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 +150NC. Note 2: Junction temperature T = T + (B 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 +150NC. 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, R1 = 698, R2 = 604, V = 4.75V to 5.25V, no input RF or LO signals. T = -40NC to +85NC, unless CC C otherwise noted. Typical values are at V = 5.0V, T = +25NC, all parameters are production tested.) CC C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Voltage V 4.75 5.0 5.25 V CC Supply Current I Total supply current 230 247 mA CC 3.3V SUPPLY DC ELECTRICAL CHARACTERISTICS (Typical Application Circuit, R1 = 845, R2 = 1.1k, V = 3.0V to 3.6V, no input RF or LO signals. T = -40NC to +85NC, unless oth- CC C erwise noted. Typical values are at V = 3.3V, T = +25NC, parameters are guaranteed by design, unless otherwise noted.) (Note 5) 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 150 mA CC RECOMMENDED AC OPERATING CONDITIONS PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS RF Frequency Range f (Notes 5, 6) 2300 4000 MHz RF LO Frequency f (Notes 5, 6) 2600 4300 MHz LO Using a Mini-Circuits TC4-1W-17 4:1 transformer as defined in the Typical 100 500 Application Circuit, IF matching components affect the IF frequency range (Notes 5, 6) IF Frequency f MHz IF Using a Mini-Circuits TC4-1W-7A 4:1 transformer as defined in the Typical 50 250 Application Circuit, IF matching components affect the IF frequency range (Notes 5, 6) LO Drive P -3 0 +3 dBm LO 2 MAX19998