Can the LT5512 be used to directly convert RF down to audio baseband?
LT5512
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The LT5512 is an active double-balanced mixer IC, optimized for high linearity HF, VHF and UHF applications. The IC includes an integrated LO buffer amplifi...
Datasheet
LT5512 on Analog.com
Can the LT5512 be used to directly convert RF down to audio baseband?
It depends on the modulation scheme. In case you are using the complex (I, Q) modulation and you convert it to baseband, some information will be lost. Next issue is the minimum frequency you want to process, The IF output is probably current output and supply goes via inductive component (inductor or transformer), thus in case of low audio frequencies, the inductance can be quite high.
It depends on the modulation scheme. In case you are using the complex (I, Q) modulation and you convert it to baseband, some information will be lost. Next issue is the minimum frequency you want to process, The IF output is probably current output and supply goes via inductive component (inductor or transformer), thus in case of low audio frequencies, the inductance can be quite high.
I am looking at direct down converter for analog FM signal. Specifically I am trying to replace a SA612 mixer with the LT5512. The carrier frequency is 10Mhz and the output is 10khz audio bandwith.
Thanks
Trampas
The carrier frequency is 10Mhz
Do you mean at IF output?