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Si483X-B/Si4820/24 ANTENNA, SCHEMATIC, LAYOUT, AND DESIGN GUIDELINES

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2.2. Si483x-B/Si4820/24 Band Selection

Refer to Figure 1 below for the band selection circuits. Selecting a band determines the resistance value from the

band select pin to GND.

To select a specific band, you need to ensure two things:

1. Total value of resistance from the BAND to GND is equal to the value specified in Table 2

2. Total resistance from TUNE1 to GND is 500 k in 1% tolerance

The following sections describe some commonly used bands and their respective selection circuits.

2.2.1. Typical 12-band application

Figure 1 and Table 3 illustrate the band and resistor value details for a typical 12-band application.

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Rev. 0.2

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