Si3219x: ProSLIC
®
Single FXS Solution
ProSLIC
®
Single-Channel FXS Solutions
The Si3219x Single FXS
ProSLIC
®
devices implement a complete foreign exchange sta-
tion (FXS) telephony interface solution in a single package that conforms to all relevant
global specifications. The Si3219x ProSLIC ICs operate from a 3.3 V supply and have a
3-wire ISI digital interface with 1.8 to 3.3 V I/O. The Si3219x devices are designed to
operate with a capacitive boost tracking battery supply for lower power, cost, and foot-
print than other tracking supplies in the industry. Self-testing and metallic loop testing
(MLT) are facilitated by the built-in DSP, monitor ADC, and test load. The devices are
available with wideband audio for better-than-PSTN voice quality and DTMF detection.
The Si3219x devices are available in a 4 x 6 mm, 38-pin QFN package.
Applications:
• VoIP Gateways and Routers
• xDSL IADs
• Optical Network Terminals/Units (ONT/U)
• Analog Terminal Adapters (ATA)
• Cable eMTA
• Wireless Fixed Terminals (WFT)
• Wireless Local Loop (WLL)
• WiMAX CPE
KEY FEATURES
• Complete FXS solution in a single 4 x 6
mm package
•
Performs all BORSCHT functions
• Ideal for short- or medium-loop
applications
• Ultra-low power consumption
• Patented low-power ringing
• Adaptive ringing
• Dynamic overhead control
• Ringing current limiting
• Simplified configuration and diagnostics
• Supported by ProSLIC API
• Audio diagnostics with loopback
• Integrated test load
• Global programmability
• Wideband voice support
• On-hook transmission
• Loop or ground start operation
• Smooth polarity reversal
• A-Law/µ-Law companding, linear PCM
• Flexible integrated tracking dc-dc controller
supporting patent-pending low-cost
capacitive boost configuration
• Software-programmable parameters:
• Ringing frequency, amplitude, cadence,
and waveshape
• Two-wire ac impedance
• Transhybrid balance
• DC current loop feed (10–45 mA)
• Loop closure and ring trip thresholds
• Ground key detect threshold
• Pulse metering
• DTMF generation
• DTMF detection (Si32193)
• 3.3 V operation
• Support for 1.8 V I/O
• Maximum battery up to –100 V
• Pb-free/RoHS-compliant packaging
• 3-wire Integrated Serial Interface (ISI)
RING
TIP
DSP
DTMF &
Tone Gen
Ringing
Generator
SLIC
Linefeed
Control
Linefeed
Monitor
Line Diagnostics
DSP
CODEC
SLIC
Linefeed
Control
Linefeed
Monitor
Si3219x
Linefeed
FXS
3-wire ISI
PLL
Ringing
Generator
Line Diagnostics
DC-DC Controller
Caller ID
DTMF and
Tone Gen
Programmable
AC Impedance
and Hybrid
Host Interface
ADC
DAC
CODEC
ADC
DAC
CODEC
ADC
DAC
silabs.com | Building a more connected world. Preliminary Rev. 0.9
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.