1/6 st20138 unicorn ii september 2004 this is preliminary information on a new product foreseen to be developed. details are subject to change without notice. 1 description the unicorn ii chipset is designed to simplify the development of low-cost adsl cpe modems for windows, mac and linux based environments and enables manufacturers to achieve a very compet- itive production cost. due to its controller-less ar- chitecture and particularly the advantage that it does not require an external sdram in its e-bom, the total cost of the external components needed in the modem is the best in its class. with a low component count of less then 140 external compo- nents and small form factor packages, the unicorn ii easily fits on a standard 2 layer single sided pcb with small dimensions which contributes signifi- cantly to further lowering overall system costs. to- gether with its low power consumption, high- speed performance up to 8 mbps and customiz- able complete software driver packages, the uni- corn ii is the ideal choice for usb and pci based adsl modems. the unicorn ii chipset consists of the digital st70138 chip and the mtc20174 analog front end. the st70138 is supplied in two packages, tqfp144 and lbga80. the st70138t packaged in tq144 is a pin-to-pin compatible version of the st70137 enabling manufacturers to benefit direct- ly from the cost and performance advantages that the st70138 brings. the tq144 flavor brings out both the usb and pci interfaces. supplied in a compact usb-only lbga80 package, the st70138b brings addition- al cost advantages to new designs. the mtc20174 analog front end (afe) with inte- grated line driver is designed for dmt based adsl cpe modems compliant with ansi t1.413 issue 2, itu g.992.1 (g.dmt) and itu g.992.2 (g.lite), for annex a, b and c. data brief pci/usb adsl chipse t: st70138 + mtc20174 for ultra low cost adsl modem figure 1. chipset architecture overview st70138 dmt/atm mtc20174 afe line interface phone line pc/mac usb pci eeprom (0-16kb) optional rev. 1 .com .com .com .com 4 .com u datasheet
st20138 - unicorn ii 2/6 2 standards compliance and interoperability eleven years of experience have enabled st to develop a chipset that offers full compatibility with all cur- rent full-rate and g.lite adsl standards, usb standards including plug-and-play support. the unicorn ii chipset has a comprehensive driver suite that supports windows, mac and linux. the unicorn is fully in- teroperable with all major dslams and is compliant to tr-048 (dslforum) and etsi 101 388 perfor- mance requirements. 2.1 protocols supported rfc 2684 bridged (llc/snap and vcmux) - replacing rfc 1483 rfc 2684 routed (llc/snap and vcmux) - replacing rfc 1483 rfc 2364 ppp over atm (llc and vcmux) rfc 2516 ppp over ethernet (llc and vcmux) rfc 2225 classical ip over atm 2.2 atm and atm adaptation support vpi range: 0 - 255 vci range: 32 - 65535. uni 3.0, 3.1, 4.0 signaling tr37 (auto-configuration) ubr, cbr (with customizable parameters) aal0, aal5 3 software suite unicorn shipping package includes a complete set of field proven software drivers and tools for windows, mac and linux, including pc software for modem control and communications protocols. the software drivers are fully configurable and include diagnostic tools which are specifically developed to minimize op- erator helpdesk interference. 3.1 software interface ndis wan or ndis5-atm pci driver and usb driver mac / linux os: open transport driver 3.2 os support win98, win98se, winme, win2k, winxp mac os 8.6 till 10.3.x up to linux kernel 2.6.x 3.3 hardware interfaces usb connector or pci interface rj11 connector 3.4 maximum supported speed 8mbps downstream 1mbps upstream .com .com .com .com .com 4 .com u datasheet
3/6 st70138 september 2004 this is preliminary information on a new product foreseen to be developed. details are subject to change without notice. 4 hardware features support digital signal processing requirements for one adsl cpe channel (itu-r) compliant with itu 992.1 (adsl full rate) annex a (adsl over pots), annex b (adsl over isdn), itu 922.2 (g.lite) and ansi t1.413. enhanced ftp transfer capabilties direct interface to usb (usb release 1.1 specification) direct interface to external 8/16bit serial memory to support usb user's configuration. direct analog front end interface for mtc20174 clock & reset interface 1.8v and 3.3v power supply ttl logic levels compatible power management capabilities low power consumption : max 0.45w tqfp144 (order code st70138t - backward compatible with previous st70137) lfbga80 (order code st70138b) 5 description unicorn ii is an evolution of the field-proven and mass deployed unicorn modem that dramatically lowers the overall system cost when designing and producing a usb adsl modem. the unicorn ii chipset is designed using cost effective cmos technology, further integrating external compo- nents which leads to even lower e-bom costs, re- duced component count and lower pcb complexity; all of this while increasing overall per- formance. its proven controller-less and sdram- less architecture is highly competitive and well suited in today's cost focused modem market. the unicorn ii chipset is designed to simplify the development of low-cost adsl cpe modems for windows, mac and linux based environments and enables manufacturers to achieve a very compet- itive production cost. due to its controller-less ar- chitecture and particularly the advantage that it does not require an external sdram in its e-bom, the total cost of the external components needed in the modem is the best in its class. with a low component count of less then 140 external compo- nents and small form factor packages, the unicorn ii easily fits on a standard 2 layer single sided pcb with small dimensions which is contributes signifi- cantly to further lowering overall system costs. to- gether with its low power consumption, high- speed performance up to 8 mbps and customiz- able complete software driver packages, the uni- corn ii is the ideal choice for usb based adsl modems. the st70138t/b is the adsl dmt transceiver chip of the unicorn2? chipset. st70138t in intended to be used as a pin-to-pin replacement part of the st70137 device in order to get advantage from its better cost-structure and its enhanced ftp transfer capabilities. st70138t is packaged in a tq144 package. full backward compatibility with already existing usb pcb de- signs is assured. st70138b, packaged in lfbga80 is intended for new pcb designs, which will benefit from exten- sive e-bom reduction in the reference design, mass production friendly eeprom programma- tion, enhanced ftp throughput and overall lower system cost structures. eleven years of experience have enabled st to de- velop a chipset that offers full compatibility with all current full-rate and g.lite adsl standards, usb standards including plug-and-play support. the uni- corn ii chipset has a comprehensive driver suite that supports windows operating systems from 98 to xp, mac operating systems 8 to x and linux. the unicorn is fully interoperable with all major dslams and is compliant to tr-048 (dslforum) and etsi 101 388 performance requirements. data brief unicorn ii? usb controllerless adsl dmt tranceiver fi gure 2. p ac k ages table 1. order codes part number package st70138t tqfp144 st70138b lfbga80 tqfp144 lfbga80 .com .com .com .com .com 4 .com u datasheet
4/6 mtc20174 september 2004 this is preliminary information on a new product foreseen to be developed. details are subject to change without notice. 6 features fully integrated afe and line driver for adsl overall 12 bit resolution, 1.1mhz signal bandwidth 8.8 ms/s adc 8.8 ms/s dac differential analog i/o accurate continuous-time channel filtering 5 th & 4 th order tunable continuous-time receive and transmit filters respectively support for multiple adsl standards: ? ansi t1.413 issue 2 ? itu g.992.1 (g.dmt) ? annex a ? annex b (adsl over isdn) ? annex c (adsl over isdn sbm/dbm/ g.dmt) ? itu g.992.2 (g.lite) highest performance: ? operation up to 18 kft (26 awg) ? more than 8 mbps downstream and 832 kbps upstream up to 8 kft (26 awg) ? more than 3 mbps downstream and 760 kbps upstream up to 12 kft (26 awg) 100 pin tqfp package allows high-density board design power dissipation of 900mw at 25c, typical 7 applications the mtc20174 is an adsl analog front-end (afe) with integrated line-driver for atu-r appli- cations offering annex a, b and c. 8 general description the mtc20174 analog front end (afe) with inte- grated line driver is designed for dmt based adsl cpe modems compliant with ansi t1.413 issue 2, itu g.992.1 (g.dmt) and itu g.992.2 (g.lite), for annex a, b and c. it is intended to be used with the mtc20166 dmt modem and atm framer as part of the mtk20170 chipset, but may also be used to support other adsl signal processors. it includes the following parts: a 12-bit 8.8msamples/s dac a 13-bit 8.8msamples/s adc tunable low-pass and high-pass filters low-noise pgas a tx pre-amplifier a tx line-driver a fully integrated dcxo a pll-based frequency doubler a filter tuning circuit a dying gasp circuit a digital module for control, test and interface the following figure provides a graphical repre- sentation of the mtc20174 functional blocks with an additional separation in rx and tx path. the analog and digital part have separated 3.3v power supplies. in addition some part of the ana- log section of the mtc20174 has a power supply of 5v. the typical total power consumption of the mtc20174 is 900mw for 12dbm of line power (full operation) at 250c. the package is a 100 pin tqfp. data brief adsl analog front end with integrated line driver for cpe applications fi gure 3. p ac k age table 2. order codes part number package temperature mtc20174-tq-c1 tqfp100 0 to 70c mtc20174-tq-c1tr tape & reel 0 to 70c tqfp100 .com .com .com .com .com 4 .com u datasheet
5/6 st20138 - unicorn ii table 3. revision history date revision description of changes september 2004 1 first issue .com .com .com .com .com 4 .com u datasheet
information furnished is believed to be accurate and reliable. however, stmicroelectronics assu mes no responsibility for the co nsequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publicati on are subject to change without notice. this publication supersedes and replac es all information previously supplied. stmicroelectronics prod ucts are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectro nics. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners ? 2004 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com 6/6 st20138 - unicorn ii .com .com .com .com 4 .com u datasheet
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