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m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support m21404-13/m21414-13/m21424-13 1 sd, hd, and 3g cable equalizers rev v6 applications ? sdi routers ?sdi switches ? sdi distribution amplifier ?sdi camera ? standards compliance ? smpte 259m, smpte 292, smpte 344m, smpte 424m ? (at appropriate data rates) ? dvb-asi (270 mbps) the m21404/m21414/m21424 are high-speed, low-power, adap tive co-axial cable equalizers designed to increase the maximum low-jitter transmission distance of serial digital interface (sdi) video signals and dvb-asi across commonly used bandwidth-limiting 75 ? coaxial cable. these devices automati cally optimize their transfer function based on the bit rate and cable length to minimize the inter-symbol interference (isi) jitter caused by the cable and to remove the dc offset components introduced with the pathological test pattern and ac coupling in systems. the m21424 is designed to support sd, hd, and 3g data rates from 143 mbps to 2970 mbps. the m21414 is designed to support sd and hd data rates from 143 mbps and 1485 mbps. the m21404 is designed to support sd data rates between 143 mbps and 540 mbps. the low-noise, high-gain equalizer allo ws for low jitter 3g-sdi transmissions up to 100m (belden 1694a) and hd transmissions up to a length of 200m (belden 1694a) a nd 120m (belden 8281). for sd data rates, cable lengths up to 400m (belden 1694a) and 300m (belden 8281) are supported. functional block diagram thresh clen sdi sdi cable length indicator equalizer core input buffer 0 1 dc restore sdo2_en sdo2 output buffer sdo2 output buffer sdo1 sdo1 control logic sd/ mute eq_ byp m21404 /m21414/m21424 cable equalizer swing_l/h features ? smpte/dvb-asi compliant at sd, hd and 3g (m21424) ? smpte/dvb-asi compliant at sd and hd (m21414) ? smpte/dvb-asi compliant at sd (m21404) ? dual cml outputs, with se lectable hi gh amplitude ? enable for second cml output ? interchangeable pcb footpr int for all three devices ? 3.3v supply ? low power (230 mw @ 3.3v) ? extended temperature range: ?10 to 85c
ordering information part number package operating data rate operating temperature m21404g-13* 32-pin mlf (rohs compliant) 143?540 mbps ?10 c to 85 c m21414g-13* 32-pin mlf (rohs compliant) 143?1485 mbps ?10 c to 85 c M21424G-13* 32-pin mlf (rohs compliant) 143?2970 mbps ?10 c to 85 c * consult the price list for exact part number when ordering. * the letter ?g? designator after the part number indicates a rohs-compliant package. revision history revision level date description v6 release december 2015 updated package drawing, figure 1-3 . package effective as of july 2014. v5 release may 2015 updated logos and page layout. no content changes. f (v4) release october 2013 removed 2.5v operation e (v3) release november 2010 updated package diagram ( figure 1-3 ). d (v2) release march 2010 revised for -13 part. c (v1) release april 2007 production release. correction made to the functional block diagram. specification changes to tables 1-3 , 1-5 , 1-6 , and 1-7 . b (v1p) preliminary february 2007 combined data sheets for the m21404, m21214 and m21424. removed 1.8v operation. removed cli and mute threshold specification. a (v1a) advance april 2006 initial release. m21404/m21414/m21424 marking diagram par t number /rohs compl i ance /rev. lot number date code xxxx.x yyww count ry 21424g13 xxxx. x yyww count ry 21414g11 xxxx.x yyww count ry 21404g11 m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 2 sd, hd, and 3g cable equalizers rev v6
m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support m21404-13/m21414-13/m21424-13 3 sd, hd, and 3g cable equalizers rev v6 table of contents ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 revision history. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 table of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 list of figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 list of tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.0 product specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1 general specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 1.2 input/output level specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 1.3 eq specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 1.4 package specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 1.4.1 mechanical description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1.4.1.1 package details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1.5 manufactureability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 1.5.1 electrostatic discharge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.5.2 peak reflow temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.5.3 moisture sensitivity level (msl) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.6 design considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 1.6.1 thermal considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.0 functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.1 pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 2.1.1 general nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.1.2 high-speed input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 2.1.3 high-speed outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.1.4 adaptive equalization selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.1.5 cable length indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.1.6 output mute and signal detect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.1.7 equalizer detailed description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2.2 m21404/m21414/m21 424 common signals by interface group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 2.2.1 m21404/m21414/m21424 pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 a.1 glossary of terms/acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 a.2 reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 a.2.1 external . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support m21404-13/m21414-13/m21424-13 4 sd, hd, and 3g cable equalizers rev v6 list of figures figure 1-1. output symbols definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 figure 1-2. m21404/m21414/m21424 pin assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 figure 1-3. m21404/m21414/m21424 packaging details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 figure 2-1. single-ended typical input matching/termination network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 figure 2-2. test setup diagram for cable equalizer evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support m21404-13/m21414-13/m21424-13 5 sd, hd, and 3g cable equalizers rev v6 list of tables table 1-1. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 1-2. recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 1-3. power dc electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 table 1-4. cmos input electrical specifications (logic signals only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 1-5. high speed input electrical specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 1-6. high speed output electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 table 1-7. cable equalizer distance specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 table 1-8. sd/mute specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 table 2-1. power pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 2-2. high-speed signal pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 2-3. control/interface pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support m21404-13/m21414-13/m21424-13 6 sd, hd, and 3g cable equalizers rev v6 1.0 product specification 1.1 general specifications table 1-1. absolute maximum ratings symbol parameter minimum maximum units av dd positive supply av ss - 0.5 av ss + 3.6 v v in dc input voltage (pcml) av ss - 0.5 av dd + 0.5 v t store storage temperature ? 65 +150 c v esd, hbm human body model (low-speed) 2000 ? v v esd, hbm human body model (high-speed) 2000 ? v v esd, cdm charge device model 500 ? v note: 1. no damage. table 1-2. recommended operating conditions symbol parameter notes minimum typical maximum units av dd supply voltage ? 3.135 3.3 3.465 v t amb ambient temperature ? ?10 ? +85 c t ja junction to ambient thermal resistance 1, 2 ? 40 ? c/w notes: 1. mounted on multi layer board ( t 4 layers). 2. airflow = 0.0 m/s. table 1-3. power dc electrical specifications symbol parameter notes minimum typical maximum units i dd supply current 1 ? 70 90 ma p total total power dissipation (@3.3v) 1, 2, 3 ? 230 312 mw notes: 1. specified at recommended operating conditions?see table 1-2 . 2. includes on-chip power dissipation as well as off-chip power dissipated by termination resistors. 3. typical calculated at nominal supply voltage, maximum calculated at nominal supply voltage + 5%.
m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 7 sd, hd, and 3g cable equalizers rev v6 1.2 input/output level specifications table 1-5. high speed input electrical specifications symbol parameter notes minimum typical maximum units dr input bit rate (m21404) 1 143 ? 540 mbps input bit rate (m21414) 1 143 ? 1485 mbps input bit rate (m21424) 1 143 ? 2970 mbps v in input voltage range with 0m of cable, p-p, av dd = 3.3v 1, 5 700 800 1200 mv v icm input common-mode voltage (av dd = 3.3v) 1, 4 ? 2.75 ? v c in input capacitance 1, 4 ? 0.5 ? pf r in input resistance 1, 4 ? 1.6 ? k : s 11 input return loss (5 mhz to 1.5 ghz) 1, 2, 3 20 30 ? db input return loss (1.5 ghz to 3 ghz) (m21424) 1, 2, 3 ? 13 ? db notes: 1. specified at recommended operation conditions?see table 1-2 . 2. using the recommended input termination shown in figure 2-1 . 3. measured single ended. 4. guaranteed by design. 5. this is also the recommended cable launch level (far end). table 1-4. cmos input electrical specifications (logic signals only) symbol parameter notes minimum typical maximum units v ih input logic high voltage 1 0.75 x av dd ?av dd + 0.3 v v il input logic low voltage 1 0 ? 0.25 x av dd v i ih input current (logic high) 1 ? 100 ?1 0 0 a i il input current (logic low) 1 ? 100 ?1 0 0 a note: 1. specified at recommended operating conditions?see table 1-2 . spec is for a max load of 20 pf.
table 1-6. high speed output electrical specifications symbol parameter notes minimum typical maximum units t r /t f rise/fall time (20%?80%), m21404 1, 2, 7 ? 500 675 ps rise/fall time (20%?80%), m21414, m21424 1, 2, 7 ? 100 120 ps t r /t f rise/fall time mismatch, m21404 1, 2, 7 ? 0 70 ps rise/fall time mismatch, m21414, m21424 1, 2, 7 ? 0 30 ps dcd data duty cycle distortion, m21404 1, 2, 5, 6 ? 0 50 ps duty cycle distortion, m21414, m21424 1, 2, 5, 6 ? 0 15 ps v od differential output voltage p-p hiswen = 0 (750 mv) 1, 3 600 750 950 mv v ocm common mode voltage hiswen = 0 (750 mv) 1, 3, 4 ? av dd ? 0.205 ? v v od differential output voltage p-p hiswen = 1 (1050 mv) 1, 3 850 1050 1270 mv v ocm common mode voltage hiswen = 1 (1050 mv) 1, 3, 4 ? av dd ? 0.290 ? v r out internal output termination resistance to av dd 1 40 50 60 : notes: 1. specified at recommended operation conditions?see table 1-2 . 2. with 100 : differential termination. 3. with 50 : to av dd termination. 4. outputs dc-coupled. 5. duty cycle distortion is defined as the difference in the intrinsic jitter at the 50% voltage level and the intrinsic jitter at the r ising/falling edge crossing point. if the rising/falling edge cro ssing point is at the 50 % voltage level, then dcd data = 0. 6. measured with a 1010 pattern. 7. measured with a prbs23 pattern. m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 8 sd, hd, and 3g cable equalizers rev v6
figure 1-1. output symbols definition v od t r t f v oh v ol j opp v oh : average voltage high level v ol : average voltage low level v od : (voh) ? (vol) v ocm : common mode voltage j opp : output jitter peak-peak t r : 20-80% rise time t f : 80-20% fall time v ocm note: waveform above is differential. m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 9 sd, hd, and 3g cable equalizers rev v6
m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 10 sd, hd, and 3g cable equalizers rev v6 1.3 eq specifications table 1-8. sd /mute specifications symbol parameter notes minimum typical maximum units v out, cmos output voltage when input signal detected 1 ? 0.16 x av dd ? v v out, cmos output voltage when input signal not detected 1 ? 0.95 x av dd ? v note: 1. specified at recommended operating condition?see table 1-2 . table 1-7. cable equalizer distance specifications symbol parameter conditions notes minimum typical maximum units l sd max cable length belden 1694a 1, 4 ? 400 ? m max cable length belden 8281 1, 4 ? 300 ? m l hd max cable length belden 1694a 2, 6 ? 200 ? m max cable length belden1694a 2, 5 ? 140 ? m max cable length belden 8281 2, 5 ? 120 ? m l 3g max cable length belden 1694a 3, 7 ? 100 ? m notes: entire table specified at recommended operating conditions?see table 1-2 . 1. data rate = 270 mbps. 2. data rate = 1485 mbps. 3. data rate = 2970 mbps. 4. error free with timing jitter typically = 0.2 ui, pathological pattern. 5. error free with alignment jitter typi cally = 0.25 ui, pathological pattern. 6. error free with alignment jitter typically = 0.3 ui, pathological pattern. 7. error free with alignment jitter typi cally = 0.35 ui, pathological pattern.
m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 11 sd, hd, and 3g cable equalizers rev v6 1.4 package specification the pin assignment is illustrated in figure 1-2 . the m21404/m21414/m21424 package is rohs compliant. this package is backwards compatible with the standard sold ering techniques as defined in jedec-std-020c (snpb process). figure 1-2. m21404/m21414/m21424 pin assignments 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 sdo1 sdo1 nc nc av ss sdi sdi sdo2_en swing_l/h thresh nc nc eq_byp agc nc nc av dd clen sd/mute av dd av dd nc m21404/m21414/m21424 x sdo2 sdo2 5 5 32 pin qfn av ss av ss av ss av dd av ss agc nc nc
m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 12 sd, hd, and 3g cable equalizers rev v6 1.4.1 mechanical description 1.4.1.1 package details the package for the m21404/m 21414/m21424 is illustrated in figure 1-3 below. figure 1-3. m21404/m21414/m21424 packaging details 1. for dimension reference a, min. is 0.800, nom is 0.85 and max. is 0.900. 2. new unisem package and the old amkor package have the same footprint.
m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 13 sd, hd, and 3g cable equalizers rev v6 1.5 manufactureability the values shown in this section may change; however, these are standard requirements. 1.5.1 electrostatic discharge tested per jesd22-a114. this device passes 2000v of esd human body model (hbm) testing. ? tested per jesd22-c101. this device passes 500v of esd charged device model (cdm) testing. ? tested per eia/jesd78. this device passes 150 ma of trigger current at 85c during latchup testing. 1.5.2 peak reflow temperature m21404g, m21414g, and m21424g (rohs compliant package ): peak reflow temperature is 260c per jedec standards. 1.5.3 moisture sensit ivity level (msl) all versions of this device (std pb -type and rohs compliant packages) are moisture sensitivit y level (msl) 3 per j-std-020b and j-std-033. 1.6 design considerations see digital video interfacing ap plication note (212xx-app-001-a) for guidance on the following: ? component placement and layout ? routing considerations 1.6.1 thermal considerations the m21404/m21414/m 21424 consume less power than legacy devices, therefore they will contribute less thermal energy and should result in a lower operating temperature.
m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support m21404-13/m21414-13/m21424-13 14 sd, hd, and 3g cable equalizers rev v6 2.0 functional description 2.1 pin descriptions 2.1.1 general nomenclature throughout this data sheet, physical pins will be denoted in bold print. an array of pins can be called by each individual pin name (e.g. mf0, mf1, mf2, mf3 , and mf6 ) or as an array (e.g. mf[3...0, 6] or mf[3:0, 6] ). 2.1.2 high-speed input digital video coaxial cables are ac-coupled to the high-speed low-noise inputs, sdi/ sdi , which, are designed to operate in both the single-ended or differential mode. the typical application is single-ended into the non-inverting sdi input with the inverting sdi input biased to match the bias on the input used. the m21404/m21414/m21424 do not contain any internal in put terminations and require both external input termination as well as the matching ci rcuit to exceed the smpte input return loss specifications. the package and ic design of the m21404/m21414/m21424 have been optimiz ed for high-speed performance, allowing them to exceed the sd/hd smpte return loss spec by 5 db to 10 db, using the recommended external matching/ ter mination network and commonly employed right-angle, through-hole, or vertical mount 75 : bnc connectors. fo r non-inverting single-ended operation, the recommended input circuit is shown in figure 2-1 . for differential o peration, the matching/termination circuit on sdi should be duplicated on sdi . the internal pull ups automatically bias sdi/ sdi for proper ac coupled operation. figure 2-1. single-ended typical input m atching/termination network 8.2 nh sdi sdi 4.7 f bnc 4.7 f 75 37.5 75 m21404 m21414 m21424
m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 15 sd, hd, and 3g cable equalizers rev v6 2.1.3 high-speed outputs the high-speed cml differential outputs af ter equalization are made available on the sdo1, sdo1 , sdo2, sdo2 pins. by default only the sdo1/ sdo1 outputs are enabled, sdo2/ sdo2 are enabled when sdo2_en = high. two swing levels are available; 750 mv and 1050 mv, when swing_l/h = high, the 1050 mv output mode is selected, when sdo2_en = high, this affects both sdo1 and sdo2 . 2.1.4 adaptive equalization selection in typical operation, the adapt ive equalization is enabled with eq_byp = low; however, with eq_byp = high, the adaptive equalization and dc restore circuit is bypa ssed and the input is fed directly to the output. 2.1.5 cable length indicator when the adaptive equalizati on is enabled (eq_byp = low), an analog vo ltage inversely proportional to the cable length is made available on clen . the same transfer function applies to all bit rates. when the adaptive equalization is disabl ed (eq_byp = high), the clen voltage goes to its highest value (this indicates 0m cable length). during an los (loss of input signal) event, the voltage falls to its lowest value. 2.1.6 output mute and signal detect when configured as an input by forcing a voltage on sd /mute = high (v dd ), the output of the m21404/m21414/ m21424 will be set to logic lo w (outputs mu ted). when sd /mute = low (v ss ), the output is never muted and the programmable cable length based mute function is disabled. when tied to a high-impedance input or left floating, th e programmable inhibit based on signal present is enabled and the pin is defined as an los output (l ogic). in the event of an los, the output is muted. the inhibit threshold is set with an analog voltage applied to the thresh input pin, this threshold will de pend on cable type (e.g. belden 1694a or 8281). 2.1.7 equalizer detailed description the basic equalizer design consists of interlaced stages of gain and equalization to maximize both the overall equalization gain as well as the input sensitivity for maxi mum performance with minimum jitter. in order to achieve maximum distance at 270 mbps, 1485 mbps and 2970 mbps with belden 1694a, the overall equalizer block has over 50 db of broadband signal boost and maintain s an input sensitivity of approximately 10 mv. since signals are launched with different smpte specified rise and fall times which can vary substantially (especially at the receive end after going though a wide dynamic range of valid cable lengths) the equalization routine determines both the bit rate and the resultant signal hf attenuation as opposed to just looking at the launch edge rates. by determining both sets of conditions, it is possible to optimize the equalizer for the different rates. for example, the m21424 maintains the same maximum cable length as optimized sd only equalizers. an sd signal through a short cable can have the same edge rate as a hd signal through a long cable; yet, both conditions require different levels of equalization as well as differ ent optimized inverse-transfer functions. the advanced equalization technology can make the distinction between the two cases for optimal performance. this also leads to proper mute threshold ( thresh ) and cable length indicator ( clen ) operation that is independent of the bit rate. in order to accommodate both the smpte worst case equa lizer pathological patterns as well as some customer derived worst case dc offset patterns, a high-gain slicer is included in the signal path to correct for any eye-
m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 16 sd, hd, and 3g cable equalizers rev v6 crossing wander due to ac coupling of the input. figure 2-2 shows the test set used by macom to evaluate the p erformance of the m21404/m21414/m21424. figure 2-2. test setup diagram for cable equalizer evaluation multi-rate video pattern generator 75 : coaxial cable m214 x4 cable equalizer m21428 cable driver multi-rate video monitor 2.2 m21404/m21414/m21424 common signals by interface group table 2-1. power pins pin name pin number function type av ss 2, 7, 8, 18, 24 ground power av dd 21, 26, 27, 30 positive supply power table 2-2. high-speed signal pins pin name pin number function type sdi/ sdi 3, 4 non-inverting and inverting serial data input to the adaptive equalizer i?ac coupled high speed sdo1 /sdo1 22, 23 non-inverting and inverting differential serial data output o?high speed cml sdo2 /sdo2 19, 20 non-inverting and inverting differential serial data output o?high speed cml
m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 17 sd, hd, and 3g cable equalizers rev v6 2.2.1 m21404/m21414/m21424 pins table 2-3. control/interface pins pin name pin number function default type nc 1 do not connect to the pin. n/a n/a sdo2_en 5 enable input for sdo2 outputs: low = sdo2 output disabled high = sdo2 output enabled internal pull down i?cmos swing_l/h 6 enable input for high swing output on sdo1/2: low = 750 mv pp diff. (default) high = 1050 mv pp diff. internal pull down i?cmos agc/ agc 9, 10 external agc (automatic gain control) capacitor connection points. use 1. 0 f capacitor. internal pull up analog eq_byp 11 input control signal that when enabled (high) bypasses the inputs directly to th e output stage. low = normal operation high = disables eq and bypasses input to output internal pull down i?cmos nc 12, 13 do not connect to the pin. n/a n/a thresh 14 input control signal voltage. programmable cable length forced mute th reshold. this function is disabled if sd /mute = low internal pull down analog nc 15, 16, 17, 25 do not connect to the pin. n/a n/a sd /mute 28 bidirectional signal that can be used as an input control signal or as an ou tput status indicator. when configured as an input by forcing a voltage on sd /mute = high, the sdo outputs will be inhibited at logic low (outputs muted). see table 1-4 for levels. when sd /mute = low (v ss ), the output is never muted and the programmable cable length based mute function is disabled. when configured as an output (tied to a high-impedance input) or left fl oating, the programmable inhibit based on cable length is enabled configured as output: low = input signal detect high = loss of signal configured as input: low = never mute high = force mute ? i/o clen 29 cable length indicator output ? analog nc 31, 32 do not connect to the pin. n/a n/a note: internal pull-up/pull-down is 100 k : .
m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support m21404-13/m21414-13/m21424-13 18 sd, hd, and 3g cable equalizers rev v6 appendix a.1 glossary of terms/acronyms ber bit error rate cd cable driver cda cable distribution amplifier cml current mode logic ddi differential data inputs dtv digital television dvb digital video broadcast emi electro magnetic interference eq equalizer or equalization esd electro static discharge green environmentally friendly hd high definition hw hardware id identifier i/o input/output mlf micro lead frame package (also called qfn) rohs restriction of hazardous substances sd standard definition sdi serial digital input sdo serial digital output se single ended smpte society of motion picture and television engineers sw software
m21404-13/m21414-13/m21424-13 m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support 19 sd, hd, and 3g cable equalizers rev v6 a.2 reference documents a.2.1 external the following external documents were referenced in this data sheet. ? smpte 292, smpte 259m, smpte 344m, smpte424m ? esi t r 101 891 dvb asynchronous serial interface (asi)
m/a-com technology solutions inc. (macom) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. visit www.macom.com for additional data sheets and product information. for further information and support please visit: http://www.macom.com/support m/a-com technology solutions inc. all rights reserved. information in this document is provided in connect ion with m/a-com technology solutions inc ("macom") products. these materials are provided by macom as a service to its customers and may be used for informational purposes only. except as provided in macom ' s terms and conditions of sale for such products or in any separate agreement related to this document, macom assumes no liability whatsoever. macom assumes no responsibility for errors or omissi ons in these materials. macom may make changes to specifications and product descriptions at any time, without notice. ma com makes no commitment to update the information and shall have no responsibility whatsoever for conflicts or incompatibilities ar ising from future changes to its specifications and product descriptions. no license, ex press or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. these materials are provided "as is" without warranty of any kind, either express or implied, relating to sale and/or use of macom products incl uding liability or warranties relating to fitness for a particul ar purpose, consequential or incidental damages, merchantability, or infringeme nt of any patent, copyright or other intellectual property right. macom further does not warrant the accuracy or completeness of the information, text, graph ics or other items contained within these materials. macom shall not be liable for any special, indirect, incidental, or consequential damages, including without li mitation, lost revenues or lost profits, which may result from the use of these materials. macom products are not intended for use in medical, lifes aving or life sustaining applications. macom customers using or selling macom products for use in such applications do so at their own risk and agree to fully indemnify macom for any damages resulting from such improper use or sale. m21404-13/m21414-13/m21424-13 20 sd, hd, and 3g cable equalizers rev v6

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