product brief s 1 2 2 0 description the s1220 device consists of four cdr modules. each of the modules can independently run at the oc-3 or oc-12 data rate. the s1220 can also be provisioned to mix and match oc-3 and oc- 12 data streams within the same device. the s1220 can be configured in media independent interface (mii) mode or in non-mii mode. the s1220 minimizes the external components on the board: no external loop filter component, internally biased outputs, internally provided common mode bias for ac input, and internally provided bias for external lvpecl driver. the s1220 offers significant advantages in power and real estate savings with high level of integration, and a small package. the figure below, system block diagram, shows a typical network application. overview the function of the s1220 clock and data recovery unit is to derive high speed timing signals for sonet/sdh-based equipment. the s1220 receives either an oc-12 or an oc-3 scrambled nrz signal and recovers the clock from the data stream. the device outputs a differential bit cloc k and retimed data. the low voltage lvds or lvpecl interfaces guarantee compliance with the bit-error rate requirements of the telcordia and itu-t standards. the s1221 is divided into four transmitter channels and four receiver channels. the sequence of operations is as follows for each channel: ? serial data input ? serial data and recovered clock outputs internal clocking and control functions are transparent to the user. amcc suggested interface devices amcc s4805 (danube) sonet/sdh mapper sts-48/stm-16, 4 x sts-12/stm, 4 x sts-3/stm-1 amcc s4806 (ohio) oc-48/4 x oc-12 sonet/sdh framer and channelized atm/pos mapper amcc s1208 (evros) sts-12 /stm-4 ds3/e3/ds1 e1/vt/ tu sonet/sdh mapper agilent hfbr-5908e sff optical transceiver sumitomo scp6802-gl scm6005 sfp & sff optical transceiver finisar ftrj1322p1xtr sfp optical transceiver ocp trpn03 & trpn12 sfp optical transceiver jds uniphase ct2-p sfp optical transceiver features ? complies with bellcore and itu-t specifica- tions for jitter tolerance, jitter transfer, and jit- ter generation ? on-chip high-frequency plls for clock gener- ation and clock recovery ? supports data rates of 155.52 mbps (oc-3) and 622.08 mbps (oc-12) ? lvds or lvpecl differential serial interface ? internal termination of the optics lvpecl driver renders a seamless power saving con- nection ? typical 320 mw power in lvds i/o mode ? directly compatible with 2.5 v or 3.3 v lvds, 3.3 v lvpecl (dc and ac) ? 196 pbga package,15x15 mm 2 with green/ rohs compliant lead free option ? cmos 0.13 micron technology ? 1.2 v and 3.3 v/2.5 v power supply ? receiver lock detect output for each channel ? continued on next page... ? signal detect input on each channel ? selectable reference frequencies of 19.44, 77.76 or 155.52 mhz ? quad configuration, mixed mode oc-3/oc-12 ? independent power down of unused channels ? drop-in-replacement for s1212 applications ? sonet/sdh oc-3/oc-12 ? sonet/sdh modules ? sonet/sdh test equipment ? atm over sonet/sdh ?section repeaters ? add drop multiplexers (adm) ? broad-band cross-connects ? fiber optic terminators ? fiber optic test equipment s1220 sonet/sdh/atm quad oc-3/12 wi th clock data recovery (cdr) system block diagram with the s1220 framer with integrated serdes or asic s1220 s1220 framers with integrated serdes or asic orx otx otx orx orx otx otx orx orx otx otx orx orx otx otx orx data data data data data data data data cdr data cdr data cdr data cdr data cdr data cdr data cdr data cdr data cdr clock cdr clock cdr clock cdr clock cdr clock cdr clock cdr clock cdr clock mii port mii port fpga fpga
s1220 specifications 6290 sequence dr. san diego, ca 92121 p 858 450 9333 f 858 450 9885 www.amcc.com for technical support, please call 1-800-840-6055 or 858-535-6517, or email support@amcc.com. amcc reserves the right to make changes to its products, its da tasheets, or related documentation, without notice and warrants its products solely pursuant to its terms and conditions of sale, only to su bstantially comply with the latest available data sheet. please consult amccs term and conditions of sale for its warranties and other terms, conditions and limitations. amcc may discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of releva nt information to verify, before placing orders, that the information is current. amcc do es not assume any liability arising out of the application or us e of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. amcc reserves the right to ship devices of higher grade in place of those of lower grade. amcc semiconductor products are not designed, intended, authorized , or warranted to be suitable for use in life-support applica tions, devices or systems or other critical applications. amcc is a registered trademark of applied micro circuits corporation. powerpc and the powerpc logo are registered trademarks of ibm corporation. all other trademarks are the property of their respective holders. copyright ? 2006 appli ed micro circuits corporation. all rights reserved. s1220_pb2020_v0.04_20061103
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