MAX2180

MAX2180 19-5322; Rev 0; 6/10 EVAALVUAAILTAIOBNLEKIT AM/FM Car Antenna Low-Noise Amplifier General Description The MAX2180 is a highly integrated AM/FM variable-gain low-noise amplifier ideal for use in automotive active antenna applications. The device features separate AM and FM signal paths, each providing 30dB of gain range, controlled by individual on-chip power detectors. The AM signal path covers a 148kHz to 30MHz input frequency range, while the FM signal path covers 65MHz to 162.5MHz. The device integrates a voltage regulator and pass transistor, allowing operation using battery voltages in the +8V to +24V range. On-chip thermal protection automatically limits junction temperatures during extreme thermal conditions. The device is available in a small, 4mm x 4mm, TQFN package and operates over the extended industrial temperature range (-40NC to +85NC). Applications Automotive Active Antenna Features S +8V to +24V Supply Voltage Range S Integrated AGC Function Eliminates External Pin Diodes S High Dynamic Range S Low-Noise Design S Low External BOM S Integrated Thermal Protection S Small Package (4mm x 4mm TQFN) Ordering Information PART TEMP RANGE PIN-PACKAGE MAX2180ETG+ -40NC to +85NC 24 TQFN-EP* +Denotes a lead(Pb)-free/ROHS-compliant package. *EP = Exposed pad. Simplified Block Diagram FM VLDO DET VLDO VREG AM VLDO DET MAX2180 AM/FM VANT OUTPUT ________________________________________________________________ Maxim Integrated Products   1 Fo...