SI3232 datasheet(18/128 Pages) SILABS

18 / 128 page

Si3232

Preliminary Rev. 0.96

3. Bill of Materials

Component

Value

Function

C1, C2, C11, C12

100 nF, 100 V, X7R, ±20%

Filter capacitors for TIP, RING ac-sensing inputs.

C3, C4, C13, C14

10 nF, 100 V, X7R, ±20%

TIP/RING compensation capacitors.

C5, C6, C15, C16

1 µF, 10 V, X7R, ±20%

Low-pass filter capacitor to stabilize differential and

common mode SLIC feedback loops.

C20–C25

0.1 µF, 10 V, Y5V

Decoupling for analog and digital chip supply pins.

C30–C33

0.1 µF, 100 V, Y5V

Decoupling for battery voltage supply pins.

C41–43*

3.3 nF, 10 V, X7R, ±20%

Reconstruction filter for DAC of BCM3341.

C45–47*

150 nF, 10 V, X7R, ±20%

Anti-aliasing filter for ADC of BCM3341.

R1, R2, R11, R12

402 k

Ω, 1/10 W, ±1%

Sense resistors for TIP, RING dc sensing nodes.

R3, R4, R13, R14

4.7 k

Ω, 1/10 W, ±5%

Current limiting resistors for TIP, RING ac-sensing

inputs.

R5, R15

806 k

Ω, 1/10 W, ±1%

Sense resistor for battery voltage sensing node.

R6, R16

40.2 k

Ω, 1/10 W, ±5%

Sets bias current for battery switching logic circuit.

R7, R8, R17, R18

182

Ω, 1/10 W, ±1%

Reference resistors for internal transconductance

amplifier.

R10

40.2 k

Ω, 1/10 W, ±1%

Generates a high accuracy reference current.

R40, R41*

20 k

Ω, 1/10 W, ±1%

Anti-aliasing filter for ADC of BCM3341.

*Note: These components are only required when used with BCM3341 and other interface-compatible Broadcom products.

SI3232 Datasheet(PDF) 18 Page - Silicon Laboratories

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