This part is a kind of semiconductor called SA58646BD.

Function of this product has UHF 900MHz transceiver IC.

Manufacturers : NXP

Image and pinout :

Some of the text within the PDF file :

SA58646 UHF 900 MHz transceiver IC Rev. 01 8 February 2007 Product data sheet 1. General description The SA58646 is a BiCMOS integrated circuit that performs all functions from the antenna to the microcontroller for reception and transmission for both the base station and the handset in a 902 MHz to 928 MHz full-duplex radio. The SA58646 may be used in a UHF push-to-talk walkie-talkie or in a UHF to 900 MHz data transceiver. The SA58646 is a pin-compatible derivative of the UAA3515 with advanced features. This IC integrates most of the functions required for a half-duplex or full-duplex radio in a single integrated circuit. Additionally, the programmability implemented reduces significantly external components count, board space requirements and external adjustments. 2. Features I R [ ... ]

SA58646BD PDF Datasheet Download