I've found the old Zarlink SL2101, but it seems ther is no replacement of such a chip.

RFMD produce the RF2053, however the price seems to be quite high.

Do you know of other similar products ?

loose-electron wrote on May 16^th, 2009, 4:48pm:


Yes, it is a component question. Hoping to have posted the question in the right place.  In order to simplify the design of a multiple frequency converter in the 200-1400 MHz band. I'd like to have a single chip with a mixer and a PLL integrated in it.
I've found an obsolete chip by zarlink (SL2101). My question is: exist something similar by other producer ?
In alternative I must use the classic configuration with separated elements: vco, PLL, and mixer.
Even in this case, someone can suggest some (low price) components ? Thank you.