IA3222/23 IA3222/23 DAA CHIPSET WITH ANALOG INTERFACE Features Pin Assignments Programmable worldwide High common-mode RF telecom compliance with one immunity hardware build Continuous dc and audio 16-Pin QSOP (IA3223) V.92 (56 kb/s) performance snooping with >5 M Tip to Ring LineStat 1 16 ICT Virtually unlimited high-voltage Parallel pick-up, line-in-use, ring, SCLK 2 isolation and911 detection 15 V SS CS 3 Highly-competitive BOM cost 86 dBm receiver noise floor 14 ICR D IN 4 13 V Lowest pin count chipset +6.5 dBm transmit power DD D 5 12 ICG OUT 120 dB Caller ID common-mode TX 6 IN 11 AC rejection at 120 Hz REF RX 7 OUT 10 C EXT1 ExtClk 8 9 Applications C EXT2 Low-cost fax-engine DAA retrofits PBX FXO/IP telephony 20-Pin QSOP (IA3223A) Point-of-sale terminals Cordless telephones LineStat 1 20 ICT Metering devices Speaker phones SCLK 19 V 2 SS Alarm systems 18 ICR CS 3 Description D IN V 4 17 DD D 5 OUT 16 ICG The IA3222 and IA3223 integrated V.92 (56K) capable direct access TX IN 6 15 AC REF arrangement (DAA) chipset is suitable for worldwide telephone line RX C OUT 7 14 EXT1 interface requirements. The patented isolation bridge technology ExtClk 8 C eliminates the need for usual telecom isolation components, such as 13 EXT2 transformers or optocouplers. Innovative techniques reduce the number 12 OfHk RNG/PPU 9 of discrete components, reducing overall solution cost. LP 11 10 LIU/LDN The chipset can be programmed by software to pass PTT certification worldwide. The integrated V.92 DAA offers an easy-to-use analog 10-Pin MSOP (IA3222B) interface with an internal or external dc reference for seamlessly interfacing to a variety of systems. It allows easy building-block Hook 10 V 1 DD integration where audio codecs are either separate or integrated into 9 GND 2 ICT DSPs. It is also ideal for non-modem systems requiring isolated DAAs, ICR 3 8 AC IN such as alarm systems, VoIP, and PBX FXO interfaces. ICG47 C X HCap 5 6 C X1 U.S. Patent 7,031,458 U.S. Patent 7,139,391 Rev. 5.0 4/11 Copyright 2011 by Silicon Laboratories IA3222/23 This information applies to a product under development. Its characteristics and specifications are subject to change without notice.IA3222/23 Functional Block Diagram Serial I/O Control/Status Registers DC Termination Tip Filtering PWM Analog Tx Encoding AC BOM Termination PWM Decoding Analog Rx Ring Filtering V/F Supervision fV Converter Processing Converter Line Status IA3223 IA3222 2 Rev. 5.0 Isolation Bridge Isolation Bridge