AN606 receiver

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AN606 receiver

Contributor II

Hi,  I am building a VHF receiver on 120.55Mhz using AN606. The receiver is used to detect the carrier wave only, so I will be using the RSSI as a carrier detect.  I have no use for audio out, and want to dispense with  unnecessary components between the IF limiter/Quadrature detector and Audio out.  Can you please recommend what to do with pins 14, 13, 12, 11, 10, and 7, 8 to achieve minimum power consumption,  minimum component count, and maintain the integrity of the RSSI.  Regards Matt Findlow.

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  • RF

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NXP TechSupport
NXP TechSupport

The limiter is used for RSSI functioning. So, leave normal connections for pins 12,13,14.

Qdetector is not used: pin 11 NC, pin 10 C14 to GND or NC.

Audio amplifier is not used: use R11 for pins 7,8.

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