Automotive
GPS/GNSS Front-End Amplifier
The MAX2670 GPS/GNSS front-end amplifier IC is designed for automotive and marine GPS/GNSS satellite navigation antenna modules or for any application that needs to compensate for cable losses from the antenna to receiver. Two unconditionally stable low-noise amplifier stages provide the high gain and integrated I/O matching to minimize the need for external matching components and eliminate the need for additional gain stages. The device features the option to place a bandpass ceramic or SAW filter between the two amplifier stages to provide a narrow-band output to further improve the noise performance of the GPS/GNSS receiver. Additionally, a 3.4dB gain step is provided to compensate for cable loss variation between different applications.
The This GPS/GNSS front-end amplifier is designed on a low-noise, advanced SiGe process and is available in a lead-free, 10-pin TDFN surface-mount package (3mm x 3mm).
Key Features
First Amplifier Noise Figure*: 1.0dB
High Gain**: 34.8dB
3.4dB Gain Step
Shared VCC and RFOUT2 Pin
Integrated 50Ω Output Matching
3.0V to 5.5V Supply Voltage Range
Small, Low-Cost Package (3mm x 3mm)
AEC-Q100 Qualified
ESD Protected to ±2kV Human Body Model
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