EVALUATION KIT AVAILABLE MAX2181A FM Automotive Low-Noise Amplifier General Description Features The MAX2181A is a highly integrated FM variable-gain +5V Supply Voltage low-noise amplifier ideal for use in automotive FM and Integrated AGC Function Eliminates FM-diversity active antenna applications. The device External Pin Diodes features an FM signal path, providing 30dB of gain range, High Dynamic Range controlled by an on-chip power detector. The FM signal Low-Noise, Sub 3dB Noise Figure path covers 76MHz to 162.5MHz. Low External BOM The device is available in a small, 3mm x 3mm, TQFN package and operates over the extended industrial tem- Small Package (3mm x 3mm TQFN) perature range (-40C to +85C). Integrated Power Detector Applications Simplified Block Diagram Automotive Active Antenna Automotive Head Unit Ordering Information appears at end of data sheet. MAX2181A V CC FM OUTPUT For related parts and recommended products to use with this part, refer to www.maximintegrated.com/MAX2181A.related. DET 19-6612 Rev 0 2/13MAX2181A FM Automotive Low-Noise Amplifier Absolute Maximum Ratings V FMBYPASS, FMOUT......................................-0.5V to +6V Operating Temperature Range ..........................-40C to +105C DD, Short-Circuit Protection FMOUT .................................. Indefinite Junction Temperature ......................................................+150C Storage Temperature Range .............................-65C to +165C FMIN ............................................................................. 130dBV Continuous Power Dissipation (T = +70C) Lead Temperature (TQFN only, soldering, 10s) ..............+300C A Soldering Temperature (reflow) .......................................+260C 16 TQFN (derate 20.8mW/C above +70C) ..........1666.7mW (Junction to Case) (Note 1) ........................................7C/W JC (Junction to Ambient) (Note 1)..................................48C/W JA Note 1: 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.maximintegrated.com/thermal-tutorial. CAUTION ESD SENSITIVE DEVICE 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 (MAX2181A Typical Application Circuit as shown, V = 4.75V to 5.25V, T = -40C to +85C, unless otherwise noted. Typical values DD A are at V = 5V, T = +25C.) (Note 2) DD A PARAMETER CONDITIONS MIN TYP MAX UNITS SUPPLY VOLTAGE (V ) DD V Operational range 4.75 5 5.25 V DD Supply Current 56 68 mA GAIN CONTROL AND AGC CONTROL (FMDET, FMGAIN, FMAGC) Ground -65 FMDET A VDD 50 Ground -50 A FMGAIN Open 2.5 V VDD 50 A Ground -50 FMAGC A VDD 50 Maxim Integrated 2 www.maximintegrated.com