​Analog DAA

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IA3223 DAA Block Diagram

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.

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.

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
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Documentation    Expand All   Collapse All

 
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Data Sheet (1)

Document NameDescriptionVersionLast Updated
IA3222-23.pdf
IA3222-23 DAA Chipset with Analog Interface5.04/28/2011

User Guides (2)

Document NameDescriptionVersionLast Updated
IA3222-23-EVB.pdf
IA3222-23-EVB User's Guide0.12/8/2011
ML3054EVB.pdf
ML3054 Reference Design0.2

Application Notes (2)

Document NameDescriptionVersionLast Updated
an14.pdf
AN14: Si3036/38 Startup/Powerdown0.2
an30.pdf
AN30: Ground Start Implementation for DAAs0.1
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Design Tools    Expand All   Collapse All

 
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Software (1)

Document NameDescriptionVersionUpdated
dig_hybrid.zip
Digital Hybrid Calculator
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Product Matrix


Part Number Available DocumentsBOM ComponentsPackageRegionLine Voltage MonitorAC Termination SettingsHost Interface
IA3223Data Sheet
32QSOP16 + SOIC8 or MSOP10GlobalYes4Async + Analog Audio
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