AndyS wrote:
A Quadrature detector is normally used only for FM demodulation.

Yes.

but (from Analog Devices):
"...Applications of the AD607 include narrowband systems with a high
first IF (21.4 MHz to 300 MHz) and a second IF at 10.7 MHz, 455 kHz, or
450 kHz. These include Dual Conversion IS136, GSM, TETRA, and MSAT
Receivers; and Single or Dual Conversion VHF and HF AM, SSB, CW, or QPSK
Receivers... "

But :-) I did not find any SSB application :-( So I need an example.




Just my two cents worth.... If anyone disagrees, I'd be happy to
learn from them where my explanation is wrong..... but I warn you,
it ain't far wrong.... cause it worked for me for many many years
in designing receivers for both commercial and military products
...:)))))


Andy Thanks for your cents, rather dollars.

PS there is internal quadrature pll in ad607.

MAc