MAX2654/MAX2655/MAX2656 19-1872 Rev 1 4/02 1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers General Description Features The MAX2654/MAX2655/MAX2656 high third-order Low Noise Figure intercept point (IP3), low-noise amplifiers (LNAs) are MAX2654: 1.5dB at 1575MHz designed for applications in GPS, PCS, WLL, and satel- MAX2655: 1.45dB at 1575MHz lite phone systems. The MAX2654/MAX2655/MAX2656 MAX2656: 1.9dB at 1960MHz incorporate on-chip internal output matching to 50 , High Gain eliminating the need for external matching components. A shutdown feature in the MAX2654/MAX2655 reduces MAX2654: 15.1dB at 1575MHz operating current to 0.1A, eliminating the need for an MAX2655: 14.1dB at 1575MHz external supply switch. MAX2656: 13.5dB at 1960MHz The MAX2654 operates in the GPS frequency of 12.7dB Gain Step (MAX2656 only) 1575MHz with 15.1dB of gain, 1.5dB noise figure, and Integrated 50 Output Matching only consumes 5.8mA. The MAX2655 is designed with high-input IP3 to improve operation in cellular applica- Variable IP3 Set by One Bias Resistor tions where the cellular power amplifier leaks into the (MAX2655/MAX2656 only) GPS receiver. The MAX2656 is designed for PCS phone applications with 13.5dB of gain in high-gain 0.1A Shutdown Mode (MAX2654/MAX2655 only) mode and 0.8dB of gain in low-gain mode (selected by +2.7V to +5.5V Single-Supply Operation a logic control) and 1.9dB noise figure. Ultra-Small 6-Pin SC70 Package The IP3 of MAX2655/MAX2656 is adjustable by a single external bias resistor (R ), allowing supply current to BIAS Ordering Information be optimized for a specific application. The MAX2654/MAX2655/MAX2656 operate from +2.7V SO T TEMP. PIN- to +5.5V single supply and are available in the minia- TOP- PART RANGE PACKAGE ture 6-pin SC70 package. M ARK Applications 6 SC70-6 MAX2654EXT-T -40C to +85C AAI 6 SC70-6 MAX2655EXT-T -40C to +85C AAJ GPS Receivers 6 SC70-6 MAX2656EXT-T -40C to +95C AAK GPS Receivers in Cell Phones DCS/PCS Cell Phones Typical Operating Circuit Satellite Phones Wireless Local Loop V = +3.0V CC Cb 4 Pin Configuration MAX2655 MAX2656 1 V /GND CTRL BIAS R BIAS TOP VIEW 10k L1 16BIAS (GND) RFOUT RFIN 3 6 RFOUT C1 C2 MAX2654 2 GND GND 5 MAX2655 MAX2654 (1) 25 ( ) IS FOR MAX2654 ONLY 34RFIN V CC PART FREQUENCY L1 ( n H ) C1 ( p F ) C2 ( p F ) ( ) IS FOR MAX2654 ONLY SC70-6 MAX2654 1575 5.6 6 1.6 MAX2655 1575 5.6 1800 1.5 MAX2656 1960 4.7 1800 1.2 Maxim Integrated Products 1 For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT MANUAL FOLLOWS DATA SHEET1575MHz/1900MHz Variable-IP3 Low-Noise Amplifiers ABSOLUTE MAXIMUM RATINGS V to GND .............................................................-0.3V to +6V Operating Temperature Range ...........................-40C to +85C CC RF Input Power.................................................................+5dBm Maximum Junction Temperature .....................................+150C Continuous Power Dissipation (T = +70C) Storage Temperature.........................................-65C to +150C A 6-Pin SC70 (derate 3.1mW/C above +70C)..............245mW 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 (V = +2.7V to +5.5V, R = 511 1%, T = -40C to +85C. No RF signal applied. RFIN is AC-coupled and terminated to 50 . CC BIAS A RFOUT is unconnected. Typical values are at V = +3V, T = +25C, unless otherwise noted.) (Note 1) CC A PARAMETER CONDITIONS MIN TYP MAX UNIT Supply Voltage 2.7 5.5 V T = +25C 5.8 8.2 A V = V mA RFOUT CC T = -40C to +85C 9.2 Operating Supply Current A (MAX2654 only) T = +25C 0.1 1 A V = GND A RFOUT T = -40C to +85C 2.1 A R = 511 1% 8.3 10 BIAS R = 698 1% 5.9 BIAS V = V RFOUT CC R = 357 1% 10.1 mA BIAS T = +25C A Operating Supply Current R = 511 1%, BIAS (MAX2655 only) 11.1 T = -40C to +85C A T = +25C 0.1 1 A V = GND A RFOUT T = -40C to +85C 2.2 A R = 511 1% 11.5 15.2 BIAS R = 715 1% 8.5 V = GND BIAS RFOUT mA T = +25C A Operating Supply Current R = 511 1%, BIAS 13.6 (MAX2656 only) T = +85C A T = +25C 12.3 A V = V mA RFOUT CC T = +85C 14.6 A Input Logic High at V (Note 2) 2 V RFOUT Input Logic Low at V (Note 3) 0.6 V RFOUT MAX2654/MAX2655 15.6 Input Logic High Current A at V (Note 4) RFOUT MAX2656 71 MAX2654/MAX2655 1 Input Logic Low Current A at V (Note 5) RFOUT MAX2656 -24 2 MAX2654/MAX2655/MAX2656