AN555 View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

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AN555

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

Silicon Laboratories 

AN555

Table 7. Si4820/24 Basic Volume Mode Applications Circuit BOM

Component(s)

Value/Description

C4,C7,C15 Capacitor 4.7 µF, ±20%, Z5U/X7R

C13

Capacitor 4.7 µF, ±20%, Z5U/X7R

C1,C6,C19 Supply bypass capacitor, 0.1 µF, ±20%, Z5U/X7R

C36

Supply bypass capacitor, 0.47 µF, ±20%, Z5U/X7R

C34

RF coupling capacitors, 33 pF, ±5%, COG

L2

Inductor 270 nH

VR1

Variable resistor (POT), 100 k, ±10%

U1

Si4820/24 AM/FM/SW Analog Tune Analog Display Radio Tuner

R6

Resistor, 100 k, ±5%

R27

Resistor, 100 , ±5%

R28

Band switching resistor, 40 k, ±1%

R44

Band switching resistor, 47 k, ±1%

R36

Band switching resistor, 33 k, ±1%

R43

Band switching resistor, 30 k, ±1%

R7,R33

Band switching resistor, 20 k, ±1%

R29

Band switching resistor, 120 k, ±1%

S2

Band switch

C2, C3

Crystal load capacitors, 22 pF, ±5%, COG

(Optional: for crystal oscillator option)

Y1

32.768 kHz crystal (Optional: for crystal oscillator option)

ANT2

Whip antenna

ANT1

MW ferrite antenna 220 µH.

Supplier

Murata

Murata

Murata

Murata

Murata

Murata

Kennon

Silicon Laboratories

Venkel

Venkel

Venkel

Venkel

Venkel

Venkel

Venkel

Venkel

Shengda

Venkel

Epson

Various

Jiaxin Electronics

20

Rev. 0.2

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