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This is manufactured by Silicon Labs. The manufacturer part number is SI4438-B1C-FMR. It is assigned with possible HTSUS value of 8542.39.0001. The product is rohs3 compliant. 20-qfn (4x4) is the supplier device package value. The product has -40°c ~ 85°c operating temperature range. Moreover, the product comes in 20-vfqfn exposed pad. It consists of 4 GPIO. It comes in txrx only configuration. It carries 75ma transmission current. The current receiving of the product is 14ma. Features fsk, gfsk, gmsk, ook modulation. It is shipped in tape & reel (tr) package . Its typical moisture sensitivity level is 1 (unlimited). The standard RF Family of the product includes general ism < 1ghz. Robust and maximum data rate speed of 500kbps. The product is available in surface mount configuration. The sensitivity given includes -124dbm. It features spi serial interface. Supplied with 425mhz ~ 525mhz of frequency. It has optimum voltage supply of 1.8v ~ 3.6v. The product has an output power 20dbm (max). Moreover, it corresponds to si4438, a base product number of the product. The product is designated with the 5a991b code number.
For more information please check the datasheets.
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