This part is a kind of semiconductor called A7102A.

Function of this product has 315/433MHz FSK Transceiver.

Manufacturers : AMICCOM

Image and pinout :

Some of the text within the PDF file :

Amiccom Preliminary www.avantcom.com.tw service@avantcom.com.tw A7102A 315/433MHz FSK Transceiver Document Title 315/433 MHz FSK Transceiver Revision History Rev. No. 0.0 0.1 History Initial issue. Logo changed. Issue Date July 18th, 2007 Nov. 5th, 2007 Remark Preliminary Important Notice: AMICCOM reserves the right to make changes to its products or to discontinue any integrated circuit product or service without notice. AMICCOM integrated circuit products are not designed, intended, authorized, or warranted to be suitable for use in life-support applications, devices or systems or other critical applications. Use of AMICCOM products in such applications is understood to be fully at the risk of the customer. Nov. 2007, Version 0.1 (PRELIMINARY) Amiccom www.avantcom.com.cn AMI [ ... ]

A7102A PDF Datasheet Download