plz identify this component used on rf module!!!

pdf doc fore this integrated circuit is :

http://www.irk.cz/ok2tx/pdf/RX3310Aa.pdf

possible ceramic filter / SAW filter

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Is a 316.8MHz saw resonator. Look here for more details

http://www.vanlong.com/products/saw_resonator.htm
http://www.hpsaw.com/eBusiness/EN/pr...id=1&type_id=1