Si3229x: ProSLIC
®
Single-Chip Dual FXS
Solution
The Si3229x Dual ProSLIC® devices, in a single package, implement two complete for-
eign exchange station (FXS) telephony interfaces. The Si3229x devices operate from a
3.3 V supply and have standard PCM/SPI or 3-wire ISI digital interfaces. A pair of built-in
dc-dc converter controllers can be used to automatically generate the optimal battery
voltage required for each line-state, optimizing efficiency and minimizing heat genera-
tion. The Si3229x devices are designed to operate with capacitive ultra-boost tracking
battery supply for lower power, cost, and footprint vs. other tracking or shared battery
supplies in the industry. Self-testing and metallic loop testing (MLT) is facilitated by the
built-in DSP, monitor ADC, and test load. The devices are available with wideband audio
for better than PSTN voice quality, DTMF detection, and Smart Ringing. Smart Ringing
reduces the peak current with 2-channel ringing for lower-cost ac-dc adapters. The
Si3229x devices are available in an 8 x 8 mm 68-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
• Private Branch Exchange (PBX)
• VoIP MDU gateways
DTMF and
Tone Gen
3-wire
ISI or
PCM/SPI
Interface
Caller ID
Ringing
Generator
KEY FEATURES
• Two complete FXS channels in a single
8x8 mm package
• Performs all BORSCHT functions
• Ultra-low power consumption
• Patented low-power ringing
• Patented Smart Ringing option
• Reduces peak current with 2-channel
ringing (Si32295/7)
• Adaptive ringing
• Simplified configuration and diagnostics
• Supported by SimpleVoice API
• Audio diagnostics with loopback
• Integrated test load
• Wideband voice support
• On-hook transmission
• Loop or ground start operation
• Smooth polarity reversal
• Programmable interrupts
• Software-programmable parameters:
• Ringing frequency, amplitude, cadence,
and waveshape
• Two-wire ac impedance
• Transhybrid balance
CODEC
Programmable
AC Impedance
and Hybrid
SLIC
Linefeed
Control
Linefeed
Monitor
ADC
DAC
CODEC
ADC
DAC
Linefeed
TIP
• DC current loop feed (10–45 mA)
• Loop closure and ring trip thresholds
• Ground key detect threshold
• Flexible integrated tracking DC-DC
controller supporting patented low-cost
capacitive ultra-boost configuration
• DTMF Generation
• DTMF Detection (Si32291/3/5/7)
• 3-wire Integrated Serial Interface (ISI) or
PCM interface
• A-Law/µ-Law companding, linear PCM
• Pulse metering
• 3.3 V operation
• Pb-free/RoHS-compliant packaging
Channel A
RING
Host Interface
Line Diagnostics
Linefeed
Control
Linefeed
Monitor
Linefeed
DSP
SLIC
TIP
Channel B
RING
PCLK / PSCLK
PLL
DC-DC Controller
Si3229x
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Rev. 1.1
Si3229x: ProSLIC
®
Single-Chip Dual FXS Solution
Ordering Guide
1. Ordering Guide
Table 1.1. Si3229x Ordering Guide
P/N
1
Si32290-A-FM
Si32290-A-GM
Si32291-A-FM
Description
Wideband Dual FXS, ISI
interface
Wideband Dual FXS, ISI
interface
Wideband Dual FXS, ISI
interface, DTMF detec-
tion
Wideband Dual FXS, ISI
interface, DTMF detec-
tion
Wideband Dual FXS,
PCM interface, daisy-
chain mode
Wideband Dual FXS,
PCM interface, daisy-
chain mode
Wideband Dual FXS,
PCM interface, DTMF
detection, daisy-chain
mode
Wideband Dual FXS,
PCM interface, DTMF
detection, daisy-chain
mode
Wideband Dual FXS, ISI
interface, DTMF detec-
tion, Smart Ringing
Wideband Dual FXS, ISI
interface, DTMF detec-
tion, Smart Ringing
Wideband Dual FXS,
PCM interface, DTMF
detection, daisy-chain
mode, Smart Ringing
Wideband Dual FXS,
PCM interface, DTMF
detection, daisy-chain
mode, Smart Ringing
Wideband Dual FXS, ISI
interface, customer-spe-
cific
Wideband Dual FXS, ISI
interface, DTMF detec-
tion, customer-specific
Package Type
QFN68
2
QFN68
2
QFN68
2
Max V
BAT
–140 V
–140 V
–140 V
Temperature
0 to 70 °C
–40 to 85 °C
0 to 70 °C
Si32291-A-GM
QFN68
2
–140 V
–40 to 85 °C
Si32292-A-FM
QFN68
2
–140 V
0 to 70 °C
Si32292-A-GM
QFN68
2
–140 V
–40 to 85 °C
Si32293-A-FM
QFN68
2
–140 V
0 to 70 °C
Si32293-A-GM
QFN68
2
–140 V
–40 to 85 °C
Si32295-A-FM
QFN68
2
–140 V
0 to 70 °C
Si32295-A-GM
QFN68
2
–140 V
–40 to 85 °C
Si32297-A-FM
QFN68
2
–140 V
0 to 70 °C
Si32297-A-GM
QFN68
2
–140 V
–40 to 85 °C
Si32290-A-ZM1
QFN68
2
–140 V
0 to 70 °C
Si32291-A-ZM1
QFN68
2
–140 V
0 to 70 °C
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Rev. 1.1 | 2
Si3229x: ProSLIC
®
Single-Chip Dual FXS Solution
Ordering Guide
P/N
1
Si32292-A-ZM1
Description
Wideband Dual FXS,
PCM interface, daisy-
chain mode, customer-
specific
Wideband Dual FXS,
PCM interface, DTMF
detection, daisy-chain
mode, customer-specific
Wideband Dual FXS, ISI
interface, DTMF detec-
tion, Smart Ringing, cus-
tomer-specific
Wideband Dual FXS,
PCM interface, DTMF
detection, daisy-chain
mode, Smart Ringing,
customer-specific
Wideband Dual FXS, ISI
interface, customer-spe-
cific
Wideband Dual FXS, ISI
interface, DTMF detec-
tion, customer-specific
Wideband Dual FXS,
PCM interface, daisy-
chain mode, customer-
specific
Wideband Dual FXS,
PCM interface, DTMF
detection, daisy-chain
mode, customer-specific
Wideband Dual FXS, ISI
interface, DTMF detec-
tion, Smart Ringing, cus-
tomer-specific
Wideband Dual FXS,
PCM interface, DTMF
detection, daisy-chain
mode, Smart Ringing,
customer-specific
Package Type
QFN68
2
Max V
BAT
–140 V
Temperature
0 to 70 °C
Si32293-A-ZM1
QFN68
2
–140 V
0 to 70 °C
Si32295-A-ZM1
QFN68
2
–140 V
0 to 70 °C
Si32297-A-ZM1
QFN68
2
–140 V
0 to 70 °C
Si32290-A-ZM2
QFN68
2
–140 V
0 to 70 °C
Si32291-A-ZM2
QFN68
2
–140 V
0 to 70 °C
Si32292-A-ZM2
QFN68
2
–140 V
0 to 70 °C
Si32293-A-ZM2
QFN68
2
–140 V
0 to 70 °C
Si32295-A-ZM2
QFN68
2
–140 V
0 to 70 °C
Si32297-A-ZM2
QFN68
2
–140 V
0 to 70 °C
Note:
1. Adding the suffix "R" to the part number (e.g., Si32292-C-FMR) denotes tape and reel.
2. QFN - Quad-Flat No-leads
Table 1.2. Evaluation Kit Ordering Guide
Part Number
Si32293AUB20SL0KIT
Si32297AUB20SL0KIT
Description
2 FXS evb with lowest-cost capacitive ultra
boost dc-dc converter for Si32290/1/5
2 FXS evb with lowest-cost capacitive ultra
boost dc-dc converter for Si32292/3/7
V
BAT
Max
–140 V
–140 V
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Rev. 1.1 | 3
Si3229x: ProSLIC
®
Single-Chip Dual FXS Solution
Ordering Guide
1.1 Product Identification
The product identification number is a finished goods part number or is specified by a finished goods part number, such as a special
customer part number.
Si32292-A-FMR
Product Designator
Revision
Shipping Option
Blank = Trays
R = Tape and Reel
Package Type M = QFN
Part Type / Lead Finish
F = Commercial / RoHS-Compliant
G = Industrial / RoHS-Compliant
Figure 1.1. Example Product Identification Number
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Table of Contents
1. Ordering Guide
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
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. 4
1.1 Product Identification .
2. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. FXS Features
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
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.20
.20
.20
.20
.20
.21
.21
.22
.22
.22
.22
.22
.22
.23
.23
.23
.24
4.1 DC Feed Characteristics.
4.2 Linefeed Operating States .
4.3 Line Voltage and Current Monitoring.
4.5 Thermal Overload .
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4.4 Power Monitoring and Power Fault Detection .
4.6 Loop Closure/Ring Trip Detection.
4.7 Ground Key Detection
4.8 Ringing Generation
4.9 Polarity Reversal .
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4.10 Two-Wire Impedance Synthesis .
4.11 Transhybrid Balance Filter
4.12 Tone Generators .
4.14 Pulse Metering
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4.13 DTMF Detection (Si32291/3/5/7 Only).
4.15 DC-DC Controller
4.16 Wideband Audio .
4.17 Test Facilities .
.
5. System Interfaces
. . . . . . . . . . . . . . . . . . . . . . . . . . . .25
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.25
.25
.25
5.1 SPI Control Interface .
5.2 PCM Interface and Companding .
5.3 Integrated Serial Interface .
6. Pin Descriptions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
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.26
.32
6.1 Si32290/1/5 ISI 8x8 mm Pinout
6.2 Si32292/3/7 PCM 8x8 mm Pinout.
7. Packaging
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
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.37
.39
.40
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7.1 Package Outline: 68-Pin QFN .
7.2 Land Pattern: 68-Pin QFN .
7.3 Top Marking: 68-Pin QFN .
8. Revision History
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
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