Specifications

Si3216
Rev. 1.0 113
Not Recommended
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6. Pin Descriptions: Si3201
Pin # Name Input/
Output
Description
1 TIP I/O TIP Output—Connect to the TIP lead of the subscriber loop.
2, 6, 9, 12 NC
No Internal Connection—Do not connect to any electrical signal.
3 RING I/O
RING Output—Connect to the RING lead of the subscriber loop.
4VBAT
Operating Battery Voltage—Connect to the battery supply.
5VBATH
High Battery Voltage—This pin is internally connected to VBAT.
7GND
Ground—Connect to a low impedance ground plane.
8VDD
Supply Voltage—Main power supply for all internal circuitry. Connect to a
3.3 V or 5 V supply. Decouple locally with a 0.1
F/6 V capacitor.
10 SRINGE O
RING Emitter Sense Output—Connect to the SRINGE pin of the Si321x
pin.
11 STIPE O
TIP Emitter Sense Output—Connect to the STIPE pin of the Si321x pin.
13 IRINGN I
Negative RING Current Control—Connect to the IRINGN lead of the
Si321x.
14 IRINGP I
Positive RING Current Drive—Connect to the IRINGP lead of the Si321x.
15 ITIPN I
Negative TIP Current Control—Connect to the ITIPN lead of the Si321x.
16 ITIPP I
Positive TIP Current Control—Connect to the ITIPP lead of the Si321x.
Bottom-Side
Exposed Pad
Exposed Thermal Pad—Connect to the bulk ground plane.
116
215
314
413
512
611
710
89
ITIPP
IRINGP
IRINGN
NC
STIPE
SRINGE
NC
ITIPN
TIP
NC
RING
VBATH
GND
NC
VDD
VBAT