Product Matrix

Analog DAA

IA3223

The IA3223 integrated V.92 (56K) capable Data Access Arrangement (DAA) chipset is suitable for worldwide telephone line interface requirements and standards. The patented IsoBridge™ isolation technology eliminates the need for usual telecom isolation components, such as transformers or optocouplers. Innovative techniques reduce the overall number of discrete components, thus reducing the cost of the overall function.

Block Diagram

 

Features

Programmable worldwide telecom compliance with one hardware build
V.92 (56 kb/s) performance
Virtually unlimited high-voltage isolation
Highly competitive BOM cost
High common-mode RF immunity without costly filtering
Continuous DC & audio snooping with >5 MΩ Tip to Ring
Parallel pick-up, line-in-use, ring, and "911" detection
-86 dBm receiver noise floor
+6 dBm transmit power (IA3222B)

Applications

Transformer DAA cost-reduction retrofits
SoCs with integrated telephony codec
VoIP FXO ports

Technologies

Micropower line-side device powered from line
120 dB Caller ID common-mode rejection at 120 Hz

Resources

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Product Matrix

Part NumberAvailable DocumentsRegionDigital InterfaceLine Voltage MonitorAC Termination SettingsBOM ComponentsPackage 
IA3223Data SheetGlobalAsync + Analog AudioYes432QSOP16 + SOIC8 or MSOP10

 

The chipset can be programmed by software to pass PTT certification worldwide. The integrated V.92 EZ DAA™ offers an easy-to-use analog interface with an internal or external DC reference for interfacing to a variety of systems seamlessly. It allows easy building-block integration where audio codecs are either separate or integrated into DSPs. It is also ideal for non-modem systems requiring isolated DAAs, such as alarm systems, VoIP and PBX FXO interfaces, etc.