Si3220/Si3225
Bill of Materials
Table 15. Si3220 + Si3200 External Component Values
Component
Value
Function
C1, C2, C11, C12
C3, C4, C13, C14
C5, C6, C15, C16
100 nF, 100 V, X7R, ±20%
10 nF, 100 V, X7R, ±20%
1 µF, 6.3 V, X7R, ±20%
Filter capacitors for TIP, RING ac-sensing inputs.
TIP/RING compensation capacitors.
Low-pass filter capacitors to stabilize differential and
common-mode SLIC feedback loops.
C30–C33
C20–C25
R1, R2, R11, R12
R3, R4, R13, R14
R5, R15
R6, R16
R7, R8, R17, R18
R10
R20, R22
R21, R23
0.1 µF, 100 V, Y5V
0.1 µF, 10 V, Y5V
Decoupling for battery voltage supply pins.
Decoupling for analog and digital chip supply pins.
Sense resistors for TIP, RING voltage-sensing nodes.
Current limiting resistors for TIP, RING ac-sensing inputs.
Sense resistor for battery dc-sensing nodes.
Sets bias current for battery-switching circuit.
Reference resistors for internal transconductance amplifier.
Generates a high accuracy reference current.
Protection against power supply transients.
Protection against power supply transients.
Pull-down resistors.
402 kΩ, 1/10 W, ±1%
4.7 kΩ, 1/10 W, ±1%
806 kΩ, 1/10 W, ±1%
40.2 kΩ, 1/10 W, ±5%
182 Ω, 1/10 W, ±1%
40.2 kΩ, 1/10 W, ±1%
390 Ω, 1/10 W, ±5%
15 Ω, 1/8 W, ±5%
R24, R25
39 kΩ, 1/10 W, ±5%
Table 16. Si3225 + Si3200 External Component Values
Component
Value
Function
C1, C2, C11, C12
C3, C4, C13, C14
C5, C6, C15, C16
100 nF, 100 V, X7R, ±20%
10 nF, 100 V, X7R, ±20%
1 µF, 6.3 V, X7R, ±20%
Filter capacitors for TIP, RING ac sensing inputs.
TIP/RING compensation capacitors.
Low-pass filter capacitors to stabilize differential and com-
mon mode SLIC feedback loops.
1
1
C30 , C31 , C32, C33
C20–C25
0.1 µF, 100 V, Y5V
0.1 µF, 10 V, Y5V
Decoupling for battery voltage supply pins.
Decoupling for analog and digital chip supply pins.
Sense resistors for TIP, RING dc sensing nodes.
Sense resistors for battery voltage sensing nodes.
Current limiting resistors for TIP, RING ac sensing inputs.
Sets bias current for battery switching circuit.
Reference resistors for internal transconductance amplifier.
Sense registers for ringing generator feed.
Generates a high accuracy reference current.
Feed resistor for ringing generator source.
Protection against power supply transients.
Protection against power supply transients.
Pull-down resistors.
R1, R2, R11, R12
R5, R15
402 kΩ, 1/10 W, ±1%
806 kΩ, 1/10 W, ±1%
4.7 kΩ, 1/10 W, ±1%
40.2 kΩ, 1/10 W, ±5%
182 Ω, 1/10 W, ±1%
806 kΩ, 1/10 W, ±1%
40.2 kΩ, 1/10 W, ±1%
R3, R4, R13, R14
1
1
R6 , R16
R7, R8, R17, R18
R9, R19, R20
R10
R21, R22
R23, R25
R24, R26
R27, R28
Notes:
2
510 Ω, 2W, ±2%
390 Ω, 1/10 W, ±5%
15 Ω, 1/8 W, ±5%
39 kΩ, 1/10 W, ±5%
1. Optional. Only required when using dual-battery architecture.
2. Example power rating.
Rev. 1.0
27
SILICONIMAGE [ Silicon image ]
