SI3015-F-FS View Datasheet(PDF) - Silicon Laboratories
Part Name
Description
Manufacturer
SI3015-F-FS Datasheet PDF : 68 Pages
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9. Pin Descriptions: Si3015
Si2403
QE2 1
DCT 2
IGND 3
C1B 4
RNG1 5
RNG2 6
QB 7
QE 8
16 FILT2
15 FILT
14 RX
13 REXT
12 REXT2
11 REF
10 VREG2
9 VREG
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
Pin Name
QE2
DCT
IGND
C1B
RNG1
RNG2
QB
QE
VREG
VREG2
REF
REXT2
Description
Transistor Emitter 2.
Connects to the emitter of Q4.
DC Termination.
Provides dc termination to the telephone network.
Isolated Ground.
Connects to ground on the line-side interface. Also connects to capacitor C2.
Isolation Capacitor 1B.
Connects to one side of isolation capacitor C1.
Ring 1.
Connects through a capacitor to the TIP lead of the telephone line. Provides the ring
and caller ID signals to the modem.
Ring 2.
Connects through a capacitor to the RING lead of the telephone line. Provides the ring
and caller ID signals to the modem.
Transistor Base.
Connects to the base of transistor Q3.
Transistor Emitter.
Connects to the emitter of transistor Q3.
Voltage Regulator.
Connects to an external capacitor to provide bypassing for an internal power supply.
Voltage Regulator 2.
Connects to an external capacitor to provide bypassing for an internal power supply.
Reference.
Connects to an external resistor to provide a high-accuracy reference current.
External Resistor 2.
Sets the complex ac termination impedance.
Rev. 1.2
61
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