FM Automotive Low-Noise Amplifier

The device integrates a voltage regulator and pass transistor, allowing operation using battery voltages in the +6V to +24V range. On-chip thermal protection automatically limits junction temperatures during extreme thermal conditions.

The device is available in a small, 3mm x 3mm, TQFN package and operates over the extended industrial temperature range (-40°C to +85°C).

MAX2181
FM Automotive Low-Noise Amplifier
Highly Integrated FM Variable-Gain Low-Noise Amplifier Ideal for Use in Automotive FM and FM-Diversity
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Status
Active: In Production.
Description
The MAX2181 is a highly integrated FM variable-gain low-noise amplifier ideal for use in automotive FM and FM-diversity active antenna applications. The device features an FM signal path, providing 30dB of gain range, controlled by an on-chip power detector. The FM signal path covers 76MHz to 162.5MHz.

The device integrates a voltage regulator and pass transistor, allowing operation using battery voltages in the +6V to +24V range. On-chip thermal protection automatically limits junction temperatures during extreme thermal conditions.

The device is available in a small, 3mm x 3mm, TQFN package and operates over the extended industrial temperature range (-40°C to +85°C).

Key Features

+6V to +24V Supply Voltage Range
Integrated AGC Function Eliminates External Pin Diodes
High Dynamic Range
Low-Noise, Sub 3dB Noise Figure
Low External BOM
Integrated Thermal Protection
Small Package (3mm x 3mm TQFN)
Integrated Pass Device and Linear Regulator
Integrated Power Detector
Integrated Antenna Sense