AN602

4

Rev. 0.3

2.2. Default Band Selection

Refer to Figure 1 for the band selection circuits. Selecting a band is to determine the resistance value from the

band select pin to GND.

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

 in 1% tolerance

Some commonly used bands and their respective selection circuits are listed below for your quick reference.

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.

Band31

SW6

9.2–9.9 MHz

　347

Band32

SW7

11.45–12.25 MHz

　357

Band33

SW8

11.6–12.2 MHz

　367

Band34

SW9

13.4–14.2 MHz

　377

Band35

SW10

13.57–13.87 MHz

　387

Band36

SW11

15–15.9 MHz

　397

Band37

SW12

15.1–15.8 MHz

　407

Band38

SW13

17.1–18 MHz

　417

Band39

SW14

17.48–17.9 MHz

　427

Band40

SW15

21.2–22 MHz

　437

Band41

SW16

21.45–21.85 MHz

　447

Table 2. Band Sequence Definition (Continued)

Band

Number

Band

Name

Band Frequency

Range

De-emphasis (FM)

Channel Space (AM)

Stereo LED on

Conditions

(Only for Si4840/44)

Total R to GND

(k

, 1%)