SI3200-FS Silicon Laboratories Inc, SI3200-FS Datasheet - Page 2

• Manufacturer Part Number: SI3200-FS
• Description: IC LINEFEED INTRFC 100V 16SOIC
• Manufacturer: Silicon Laboratories Inc
• Series: ProSLIC®r

Specifications of SI3200-FS

• Package / Case: 16-SOIC (3.9mm Width)
• 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
• Includes: Battery Switching, BORSCHT Functions, DTMF Generation and Decoding, FSK Tone Generation, Modem and Fax Tone Detection
• Product: SLIC
• Supply Voltage (min): 3.13 V
• Supply Current: 0.11 mA, 8.8 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Number Of Channels: 2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AN91
Design Method
The following sections present a design method for the
linear regulator and resistor power offload circuits.
2
Parameter
Maximum Ambient Temperature
Loop Current (ILIM)
Bias Current (SBIAS)
Telephone dc Resistance (typ.)
Maximum Loop Length
Wire dc Resistance per unit length
Battery Supply Voltage
Overhead Voltages (V
Channel 0
Select Circuit
Figure 2. External Resistor Power Offload Circuit
40.2k
Battery
9
Line Feed
Si3200
Circuit
Table 1. System Requirements
CM
VBATH
VBATL
VBAT
6
4
5
Battery Sense Logic
806k
+ V
Si322x
1
0.1uF
0.1uF
Resistor Offload Circuit
OV
16
)
Rev. 0.1
System Requirements
Table 1 enumerates the system requirements that must
be known to proceed with the power offload circuit
design. The values for each of these parameters stem
from the specific customer application and its unique
requirements.
Battery Control Logic
Symbol
L
T
w (max)
VBHI
a (max)
I
R
V
I
R
bias
lim
806k
ph
oh
w
49
32
0.1uF
VBATH
0.1uF
VBATL
VBHI = -56Vdc
VBAT
6
4
5
Line Feed
Circuit
Ω/foot or Ω/meter
feet/meters
Units
Select Circuit
Volts
Volts
40.2k
mA
mA
Battery
Si3200
°C
Channel 1
Ω
9