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SI32285-A-GM

P1-P3
Si3228x Data Short: ProSLIC
®
Single-Chip
Dual FXS Solution
The Si3228x Dual ProSLIC® devices, in a single package, implement two complete for-
eign exchange station (FXS) telephony interfaces. The Si3228x 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 Si3228x devices are designed to operate with capacitive 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 re-
duces the peak current with 2-channel ringing for lower-cost ac-dc adapters. The
Si3228x devices are available in a 7 x 7 mm 48-pin QFN or 8 x 8 mm 56-pin QFN pack-
age.
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
RING
TIP
DSP
DTMF &
Tone Gen
Programmable
AC Impedance
and Hybrid
Ringing
Generator
ADC
DAC
CODEC
SLIC
Linefeed
Control
Linefeed
Monitor
Line Diagnostics
DSP
ADC
DAC
CODECCODEC
SLIC
Linefeed
Control
Linefeed
Monitor
PCLK / PSCLK
Si3228x
ADC
DAC
Linefeed
Channel A
3-wire ISI
or
PCM/SPI
Interface
PLL
Ringing
Generator
Line Diagnostics
DC-DC Controller
Caller ID
DTMF and
Tone Gen
Programmable
AC Impedance
and Hybrid
Host Interface
RING
TIP
ADC
DAC
CODEC
SLIC
Linefeed
Control
Linefeed
Monitor
ADC
DAC
CODECCODEC
SLIC
Linefeed
Control
Linefeed
Monitor
ADC
DAC
Linefeed
Channel B
Functional Block Diagram
KEY FEATURES
• Two complete FXS channels in a single 7x7
or 8x8 mm package
• Performs all BORSCHT functions
• Ideal for short- or medium-loop applications
• Ultra-low power consumption
• Patented low-power ringing
• Patent-pending Smart Ringing
• Reduces peak current with 2-channel
ringing
• Adaptive ringing
• Simplified configuration and diagnostics
• Supported by ProSLIC 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
• DC current loop feed (10–45 mA)
• Loop closure and ring trip thresholds
• Ground key detect threshold
• Flexible integrated tracking DC-DC
controller supporting patent-pending low-
cost capacitive boost configuration
• DTMF Generation
• DTMF Detection (Si32281/3/5/7)
• 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
silabs.com
| Smart. Connected. Energy-friendly. Preliminary Rev. 0.5
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Table 1.1. Si3228x Ordering Guide
P/N Description Package Type Max V
BAT
Temperature
Si32280-A-FM Wideband Dual FXS, ISI interface
QFN48
2
–106 V 0 to 70 °C
Si32280-A-GM Wideband Dual FXS, ISI interface
QFN48
2
–106 V –40 to 85 °C
Si32281-A-FM Wideband Dual FXS, ISI interface, DTMF
detection
QFN48
2
–106 V 0 to 70 °C
Si32281-A-GM Wideband Dual FXS, ISI interface, DTMF
detection
QFN48
2
–106 V –40 to 85 °C
Si32282-A-FM Wideband Dual FXS, PCM interface, dai-
sy-chain mode
QFN56
2
–106 V 0 to 70 °C
Si32282-A-GM Wideband Dual FXS, PCM interface, dai-
sy-chain mode
QFN56
2
–106 V –40 to 85 °C
Si32283-A-FM Wideband Dual FXS, PCM interface,
DTMF detection, daisy-chain mode
QFN56
2
–106 V 0 to 70 °C
Si32283-A-GM Wideband Dual FXS, PCM interface,
DTMF detection, daisy-chain mode
QFN56
2
–106 V –40 to 85 °C
Si32284-A-FM Wideband Dual FXS, ISI interface, Smart
Ringing
QFN48
2
–106 V 0 to 70 °C
Si32284-A-GM Wideband Dual FXS, ISI interface, Smart
Ringing
QFN48
2
–106 V –40 to 85 °C
Si32285-A-FM Wideband Dual FXS, ISI interface, DTMF
detection, Smart Ringing
QFN48
2
–106 V 0 to 70 °C
Si32285-A-GM Wideband Dual FXS, ISI interface, DTMF
detection, Smart Ringing
QFN48
2
–106 V –40 to 85 °C
Si32286-A-FM Wideband Dual FXS, PCM interface, dai-
sy-chain mode, Smart Ringing
QFN56
2
–106 V 0 to 70 °C
Si32286-A-GM Wideband Dual FXS, PCM interface, dai-
sy-chain mode, Smart Ringing
QFN56
2
–106 V –40 to 85 °C
Si32287-A-FM Wideband Dual FXS, PCM interface,
DTMF detection, daisy-chain mode,
Smart Ringing
QFN56
2
–106 V 0 to 70 °C
Si32287-A-GM Wideband Dual FXS, PCM interface,
DTMF detection, daisy-chain mode,
Smart Ringing
QFN56
2
–106 V –40 to 85 °C
Note:
1. Adding the suffix "R" to the part number (e.g., Si32282-C-FMR) denotes tape and reel.
2. QFN - Quad-Flat No-leads
Si3228x Data Short: ProSLIC
®
Single-Chip Dual FXS Solution
silabs.com | Smart. Connected. Energy-friendly. Preliminary Rev. 0.5 | 1
http://www.silabs.com
Silicon Laboratories Inc.
400 West Cesar Chavez
Austin, TX 78701
USA
Smart.
Connected.
Energy-Friendly.
Products
www.silabs.com/products
Quality
www.silabs.com/quality
Support and Community
community.silabs.com
Disclaimer
Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using
or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and
"Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Laboratories reserves the right to
make changes without further notice and limitation to product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the
included information. Silicon Laboratories shall have no liability for the consequences of use of the information supplied herein. This document does not imply or express copyright licenses
granted hereunder to design or fabricate any integrated circuits. The products are not designed or authorized to be used within any Life Support System without the specific written consent
of Silicon Laboratories. A "Life Support System" is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected to result in significant
personal injury or death. Silicon Laboratories products are not designed or authorized for military applications. Silicon Laboratories products shall under no circumstances be used in
weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons.
Trademark Information
Silicon Laboratories Inc.® , Silicon Laboratories®, Silicon Labs®, SiLabs® and the Silicon Labs logo®, Bluegiga®, Bluegiga Logo®, Clockbuilder®, CMEMS®, DSPLL®, EFM®, EFM32®,
EFR, Ember®, Energy Micro, Energy Micro logo and combinations thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZRadio®, EZRadioPRO®, Gecko®,
ISOmodem®, Precision32®, ProSLIC®, Simplicity Studio®, SiPHY®, Telegesis, the Telegesis Logo®, USBXpress® and others are trademarks or registered trademarks of Silicon Laborato-
ries Inc. ARM, CORTEX, Cortex-M3 and THUMB are trademarks or registered trademarks of ARM Holdings. Keil is a registered trademark of ARM Limited. All other products or brand
names mentioned herein are trademarks of their respective holders.
P1-P3

SI32285-A-GM

Mfr. #:
Buy SI32285-A-GM
Manufacturer:
Silicon Labs
Description:
IC PROSLIC FXS ISI DTMF 48QFN
Lifecycle:
New from this manufacturer.
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