SI3200-G-GS Silicon Laboratories Inc, SI3200-G-GS Datasheet - Page 32

• Manufacturer Part Number: SI3200-G-GS
• Description: SLIC 2-CH 63dB 45mA 3.3V 6-Pin SMD
• Manufacturer: Silicon Laboratories Inc
• Series: ProSLIC®r

Specifications of SI3200-G-GS

• Package: 6SMD
• Number Of Channels Per Chip: 2
• Polarity Reversal: Yes
• Longitudinal Balanced: 63 dB
• Loop Current: 45 mA
• Minimum Operating Supply Voltage: 3.13 V
• Typical Operating Supply Voltage: 3.3 V
• Typical Supply Current: 0.11 mA
• Function: Subscriber Line Interface Concept (SLIC), CODEC
• Interface: GCI, PCM, SPI
• Number Of Circuits: 2
• Voltage - Supply: 3.3V, 5V
• Current - Supply: 110µA
• Power (watts): 941mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Includes: Battery Switching, BORSCHT Functions, DTMF Generation and Decoding, FSK Tone Generation, Modem and Fax Tone Detection
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Si3220/25 Si3200/02
battery supply that is provided. Because the battery
supply depends on the state of the input supply (i.e.,
charging, discharging, or battery backup mode), the
user must decide how much loop current is required and
determine the maximum loop impedance that can be
driven based on the battery supply provided. The
minimum battery supply required can be calculated with
the following equation:
where V
The default V
overhead for a 3.1 dBm signal into a 600 Ω loop
impedance with an I
setting of 4 mA. A V
headroom to source a maximum I
3.1 dBm audio signal and an ABIAS setting of 16 mA.
For a typical operating condition of V
I
These conditions apply when the dc-sensing inputs
32
LIM
= 22 mA:
CM
Figure 15. Simplified Dual ProSLIC Linefeed Architecture for TIP and RING Leads
V
and V
OC MAX
,
CM
V
OV
BAT
(Diagram Illustrates either TIP or RING Lead of a Single Channel)
=
value of 3 V provides sufficient
LIM
are provided in Table 8 on page 15.
OV
≥
56 V
V
setting of 22 mA and an ABIAS
value of 4 V provides sufficient
OC
TIP or
RING
–
+
(
3 V
C
V
AC
CM
Control
Audio
+
+
4 V
LOOP
Codec
Audio
V
V
V
V
BATH
BATL
BAT
OV
)
A/D
D/A
=
BAT
Control
R
of 45 mA with a
Audio
Loop
DC
49 V
Audio
Diagnostic
Filters
= –56 V and
DSP
Rev. 1.3
Current
Mirror
Σ
(STIPDCa/b and SRINGDCa/b) are placed on the SLIC
side of any protection resistance placed in series with
the TIP and RING leads. If line-side sensing is desired,
both V
equal to R
protection resistor. Other safety precautions may also
apply.
See "3.14.3. Linefeed Overhead Voltage Considerations
During Ringing" on page 54 for details on calculating the
overhead voltage during the ringing state.
The Dual ProSLIC chipset uses both voltage and
current information to control TIP and RING. Sense
resistor R
RING; Capacitor C
the TIP and RING leads to be measured. The Si3220
and Si3225 both use the Si3200/2 to drive TIP and
RING and isolate the high-voltage line from the low-
voltage CMOS devices.
The Si3220 and Si3225 measure voltage at various
nodes to monitor the linefeed current. R
provide these measuring points. The sense circuitry is
calibrated on-chip to guarantee measurement accuracy.
See "3.6. Linefeed Calibration" on page 37 for details.
Low
Frequency
Diagnostic
Filters
Si3200/2
Control
SLIC DAC
Loop
SLIC
Control
Battery
Select
OV
Monitor A/D
A/D
D/A
PROT
DC
and V
Control
measures dc line voltages on TIP and
SLIC
x I
CM
LIM
AC
V
R
BAT
must be increased by a voltage
BAT
where R
Si3220/
couples the ac line voltages on
Si3225
Sense
PROT
is the value of each
DC
and R
BAT