This part is a kind of semiconductor called AM-RRS3-433.

Function of this product has AM Superhet Receiver.

Manufacturers : rfsolutions

Image and pinout :

Some of the text within the PDF file :

AM SUPERHET RECEIVERS. AM-RRS3-XXX FEATURES • COMPACT HYBRID MODULE. • CERAMIC SUBSTRATE • VERY HIGH FREQUENCY STABILITY • SAW FILTER FRONT END. • RECEIVING RANGE UP TO 100 METRES. • SENSITIVITY TYP -106dBm • CMOS/TTL COMPATIBLE OUTPUT. • SINGLE SUPPLY VOLTAGE 5V. • COMPATIBLE WITH R.F. SOLUTIONS AM TRANSMITTERS. • IETS 300-220 Compliant DESCRIPTION The R.F. Solutions AM Superheterodyne Receiver module offers a compact modular RF receiver, which can be used to capture undecoded data from any equivalent AM Transmitter, such as R.F. Solutions AM-RT4 range of transmitters. (See AM Transmitter data sheet). The receiver is manufactured on a ceramic substrate incorporates a SAW Filter and pre amplifier front end for maximum sensitivity and reduced EMC e [ ... ]

AM-RRS3-433 PDF Datasheet Download