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PAL18H4VC Datasheet
PAL18H4VC Price I Features ~ High forward current transfer ratio hFE which has satisfactory linearity , Low collector-emitter saturation voltage VCE(sat) , N type package enabling direct soldering of the radiating fin to the printed circuit board, etc. of small electronic equipment. PAL18H4VC on stock The RF3108 is a triple-band, GSM/DCS/PCS power amplifier with two separate RF inputs and outputs that are internally matched to sol. Pins 2 and 14 0f the device provide the RF input and output for the DCS/ PCS band, which is optimized for performance between 1710MHz and 1910MHz. Pins 5 and 8 0f the device provide the RF input and output for the GSM band, which is optimized for performance between 880MHz and 915MHz. Both bands include an internal DC-blocking capacitor to protect the device from exter- nal DC source inputs and block internal DC from exit- ing the inputs and outputs of the module. The performance is similar to the performance of the RF2173 and RF2174 MIMIC devices used in dual- or triple-band applications. However, the RF3108 module includes the matching and bypass capacitors required for operation internal to the 9mmx10mm module. However, some external components are required to improve stability, isolation and noise power perfor- mance. These components are included on the evalua- tion board and schematic, and will be described in the following paragraphs.
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