SI3015-FS Silicon Laboratories Inc, SI3015-FS Datasheet - Page 84

• Manufacturer Part Number: SI3015-FS
• Description: SI2400 ISOMODEM LINE-SIDE
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3015-FS

• Data Format: V.90
• Interface: Serial
• Voltage - Supply: 3.3 V ~ 5 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Baud Rates: -

Si2400
A
Designs using the Si2400 pass all overcurrent and over-
voltage tests for UL1950 3rd Edition compliance with a
couple of considerations.
Figure 20 shows the designs that can pass the UL1950
overvoltage tests, as well as electromagnetic emissions.
The top schematic of Figure 20 shows the configuration
in which the ferrite beads (FB1, FB2) are on the
unprotected side of the sidactor (RV1). For this
configuration, the current rating of the ferrite beads
must be 6 A.
The bottom schematic of Figure 20 shows the
configuration in which the ferrite beads (FB1, FB2) are
84
P P E N D I X
RV1
1000
1000
Ω
Ω
C25
C24
@ 100 MHz, 200 m A
@ 100 MHz, 200 m A
C— UL1 950 3
Figure 20. Circuits that Pass all UL1950 Overvoltage Tests
FB1
FB2
C24
C25
Note: In this configuration, C24 and C25 are used for
em issions testing.
RV1
R D
Fuse/PTC
Rev. 1.1
1.25 A
E
on the protected side of the sidactor (RV1). For this
design, the ferrite beads can be rated at 200 mA.
In a cost-optimized design, it is important to remember
that compliance to UL1950 does not always require
overvoltage tests. It is best to plan ahead and know
which overvoltage tests will apply to your system.
System-level elements in the construction, such as fire
enclosure and spacing requirements, need to be
considered during the design stages. Consult with your
Professional Testing Agency during the design of the
product to determine which tests apply to your system.
D I T I O N
75
75
Fuse/PTC
1.25 A
Ω
Ω
@ 100 MHz, 6A
@ 100 MHz, 6A
FB1
FB2
RING
RING
TIP
TIP