Vishay

Description

Silicon Laboratories Si4438 is a high-performance, low-current transceivers covering the sub-GHz frequency bands from 425 to. 525 MHz. The Si4438 is targeted at the Chinese smart meter market and is especially suited for electric meters. Si4438 TX MATCHING. 1. Introduction. This application note provides a description of the matching of the TX Power Amplifier (PA) on the Si4438 RFIC working in the 470 510 MHz Chinese AMR band. Specifically, this document does not Si4x6x-B1B/ Si4438 -B1CER110814. November 8, 2014. Si4x6x-B1B and Si4438 - B1C Errata. This document describes the known errata items for EZRadioPRO Si4x6x-B1B-FM and Si4438 -B1C-. FM products. Errata Status Summary. Issue. Title: Packing media change from tube to tray for Si4X6X-B1B-FM and Si4438 - B1C-FM (20QFN. 4X4). Originator: KF Lee. Phone: 65-6511-6428. Dept: Supplier Quality. Assurance. Customer Contact: Kathy Haggar. Phone: 1-512-532-5261. 124 dBm . 12.5kHz 58dB . RF Si4438 +20 dBm. TX