TAT8858 catv infrastructure push-pull amplifier data sheet: rev d 03/15/12 - 1 of 8 - disclaimer: subject to change withou t notice ? 2012 triquint semiconductor, inc. connecting the digital world t o the global network ? applications soic-16 wide package ? catv line amplifiers ? catv system amplifiers ? distribution nodes ? green applications product features functional block diagram ? 75 ? , 50 ? 1000 mhz bandwidth ? gaas phemt & mesfet technology ? user configurable gain: 27 ? 34 db ? integrated linearization ? choice of output device to optimize cost/performance ? flexible bias voltage and current for optimum efficiency ? soic-16 wide package general description pin configuration the TAT8858 is a cost effective 75 ? rfic amplifier designed for use in high gain 24 v catv applications up to 1000 mhz. it works with readily available smt baluns and transformers to provide a highly flexible low cost replacement for traditional hybrids. gain of the TAT8858 may be easily adjusted by varying external components, allowing for a family of push- pull hybrid solutions to be developed from a single rfic. the TAT8858 provides integrated linearization to improve the 3 rd order distortion performance. the TAT8858 may be protected against transient surges with the t qp200002 and an output high pass filter network. consult triquint for discussion. the TAT8858 supports traditional 24 v and 12 v supply voltages. bias current may be adjusted to suit particular requirements with standard or active biasing approaches. consult triquint for further discussion. pin # symbol pin # symbol 1 out 1a 10 in 2b 2 lin adj a 11 out 2b 3 in 1a 12 gate b 4 bias 1 a 13 gate a 5 bias 1 b 14 out 2a 6 in 1b 15 in 2a 7 l in adj b 16 bias 2a 8 out 1b 17 gnd 9 bias 2b ordering information part no. description TAT8858 rfic TAT8858 - eb evaluation board standard t/r size = 1000 pieces on a 7? reel. www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT8858 catv infrastructure push-pull amplifier data sheet: rev d 03/15/12 - 2 of 8 - disclaimer: subject to change withou t notice ? 2012 triquint semiconductor, inc. connecting the digital world t o the global network ? specifications absolute maximum ratings parameter rating storag e temperature - 65 to 150 o c operating temperature - 20 to 85 o c operation of this device outside the parameter ranges give n above may cause permanent damage. recommended operating conditions parameter min typ max unit s v cc 24 v i cc 270 ma electrical specifications are measured at specified test conditions. specifications are not guaranteed over all recommended opera ting conditions. electrical specifications test conditions unless otherwise noted: 25oc case temp, +24v vsupply parameter conditions min typical max unit s operational frequency range 50 100 0 mhz test frequency mhz gain @ low frequency mid range of gain 32 db input return loss 1 8 db output return loss 1 6 db ctb see note 1 - 69 dbc cso see note 1 - 68 d bc cin see note 1 70 db xmod see note 1 - 6 1 dbc noise figure 3.0 db vbias 24 v idd see note 2 270 ma thermal resistance (jnc. to case) jc 4.0 o c/w notes : 1. 79ch. ntsc + qam (-6db offset) to 1003.25mhz flat input, 43dbmv/ ch vout at ch. 2. 2. active biasing in easily implemented with traditional dual-pnp approaches. biasing at 12 v is also possible. refer to pa ges 5 and 6 for biasing circuit configurations. www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT8858 catv infrastructure push-pull amplifier data sheet: rev d 03/15/12 - 3 of 8 - disclaimer: subject to change withou t notice ? 2012 triquint semiconductor, inc. connecting the digital world t o the global network ? application circuit 50-1000 mhz 1 2 1 2 1 2 1 2 3 1 2 3 4 2 to 1 bal un in gnd out1 out2 pri sec 1 23 4 low er b low er a 8857d upper b upper a bias 1 a bias 1 b lin ad j a lin ad j b bias 2 a bias 2 b ga te a ga te b 12 3 4 5 6 7 8 9 10 11 12 13 14 15 16 u1 l7 600 l8 600 r11 33 r12 33 l6 18nh l19 600 r5 10k r6 18k l11 470nh c13 330p r20 22 c15 4.7pf l13 43nh r13 2k l17 3.3nh r9 200 r7 36 l9 12nh c9 470pf c7 .01uf c5 1.5pf 15 c3 .01uf l5 18nh r1 20k l12 470nh c14 330p r21 22 360 r3 c16 4.7pf l14 43nh r14 2k l18 3.3nh r10 100 m/a com r8 36 l10 12nh c10 470pf c8 .01uf c6 1.5pf c4 .01uf r4 360 r2 20k l2 1.0nh 12 c22 .01uf +24v TAT8858l1h c24 .033uf c25 .033uf l20 910nh r19 2.0k r18 2.7k vgate vgate vbias vbias t1 mabact0051 t2 maba-007681-ct2010 gnd j1 .01uf c21 12 r21 c11 .01uf c12 .01uf 15 www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT8858 catv infrastructure push-pull amplifier data sheet: rev d 03/15/12 - 4 of 8 - disclaimer: subject to change withou t notice ? 2012 triquint semiconductor, inc. connecting the digital world t o the global network ? typical performance 50-1000 mhz notes: 1. 25oc case temp, 24v supply,. 2. 79ch. ntsc + qam (-6db offset) to 1003.25mhz flat input, 43dbmv/ ch vout at ch.2 25 27 29 31 33 35 37 0.00 200.00 400.00 600.00 800.00 1000.00 1200.00 gain (db) frequency (mhz) gain vs. frequency +25 c -45 -40 -35 -30 -25 -20 -15 -10 -5 0.00 200.00 400.00 600.00 800.00 1000.00 1200.00 input return loss (db) frequency (mhz) input return loss vs. frequency +25 c -35 -30 -25 -20 -15 -10 -5 0 0.00 200.00 400.00 600.00 800.00 1000.00 1200.00 output return loss (db) frequency (mhz) output return loss vs. frequency +25 c 20 21 22 23 24 25 26 27 28 29 30 31 32 0.00 200.00 400.00 600.00 800.00 1000.00 1200.00 p1db (dbm) frequency (mhz) p1db vs. frequency +25 c 0 1 2 3 4 5 0.00 200.00 400.00 600.00 800.00 1000.00 1200.00 nf (db) frequency (mhz) noise figure vs. frequency +25 c 55 60 65 70 75 80 85 0.00 100.00 200.00 300.00 400.00 500.00 600.00 cin (db) frequency (mhz) cin vs. frequency +25 c -90 -85 -80 -75 -70 -65 -60 0.00 100.00 200.00 300.00 400.00 500.00 600.00 ctb (dbc) frequency (mhz) ctb vs. frequency +25 c -90 -85 -80 -75 -70 -65 -60 0.00 100.00 200.00 300.00 400.00 500.00 600.00 cso (dbc) frequency (mhz) cso vs. frequency +25 c -85 -80 -75 -70 -65 -60 -55 -50 0.00 100.00 200.00 300.00 400.00 500.00 600.00 xmod (dbc) frequency (mhz) xmod vs. frequency +25 c www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT8858 catv infrastructure push-pull amplifier data sheet: rev d 03/15/12 - 5 of 8 - disclaimer: subject to change withou t notice ? 2012 triquint semiconductor, inc. connecting the digital world t o the global network ? detailed device description the TAT8858 is similar to other parts offered on the mar ket; it contains two separate amplifiers. a major dif ference is the TAT8858 allows much flexibility to set gain and bias to cove r multiple applications without an additional stage. this makes it ideal for green designs. it uses a cost effective high voltage mesfet technology (designed for catv) and a phemt pr ocess (developed for high-volume applications). on-chip lineariz ation is also utilized. bias current adjustment 1 2 1 2 low er b low er a 8857d upper b upper a bias 1a bias 1b lin adj a lin adj b bias 2a bias 2b gate a gate b 12 3 4 5 6 7 8 9 10 11 12 13 14 15 16 u1 l7 600 l8 600 r11 r12 l6 18nh r5 10k r6 18k l11 470nh c13 l13 r9 200 r7 36 l9 12nh c9 470pf c7 .01uf c5 1.5pf l5 18nh r1 20k l12 470nh c14 360 r3 l14 r10 100 r8 36 l10 12nh c10 470pf c8 .01uf c6 1.5pf r4 360 r2 20k 12 TAT8858l1h 12 r21 c11 .01uf c12 .01uf voltage biasing: 24v and 12v the TAT8858 has two amplifiers which can be configured to s plit a 24 v supply (and share the same current) or both amplifiers can be biased from a 12v supply and draw current independently. in the 24v case the voltage split ratio is left to the c ustomer and is set by v gate . in 24v applications, no capacitance should be put on vgate; this prevents a turn-on over-voltage conditio n from damaging the output fet. bias current is determined by 2 settings: 1. size of dc feedback resistors - decreasing r1 & r2 will increase idd 2. tail resistors - decreasing r21 will increase idd, but lead to wider variations active biasing schemes are possible but not necessary for most applications. best performance is with idd = 270ma www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT8858 catv infrastructure push-pull amplifier data sheet: rev d 03/15/12 - 6 of 8 - disclaimer: subject to change withou t notice ? 2012 triquint semiconductor, inc. connecting the digital world t o the global network ? 1 2 2 to 1 bal un in gnd out1 out2 pri sec 1 23 4 8857d upper a bias 2 a ga te a ga te b 12 13 14 15 16 u1 r11 33 l19 600 l11 470nh c13 330p r20 22 c15 4.7pf l13 43nh r13 2k l17 3.3nh r9 200 c9 470pf 15 l2 1.0nh +24v TAT8858l1h c24 .033uf c25 .033uf l20 910nh r19 2.0k r18 2.7k vgate vgate vbias vbias t2 maba-007681-ct2010 gnd j1 .01uf c21 additional information can be requested from triquint appli cations engineering, sjcapplications.engineering@tqs.com . voltage divider should be done with same or lower resistor values to prevent gate leakage currents in the output fet from affecting v gate . www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT8858 catv infrastructure push-pull amplifier data sheet: rev d 03/15/12 - 7 of 8 - disclaimer: subject to change withou t notice ? 2012 triquint semiconductor, inc. connecting the digital world t o the global network ? mechanical information package information and dimensions this package is lead - free/rohs - complia nt. the plating material on the leads is 100% matte tin . it is compatible with both lead-free (maximum 260 c reflow temperature) and lead (maxi mum 245 c reflow temperature) soldering processes. the TAT8858 will be marked with a ?TAT8858? designator with a l ot code marked below the part designator. the ?y? represents the last digit of the year the part was m anufactured, the ?xxxx? is an auto-generated number and ?z ? refers to a wafer number in a lot batch. mounting configuration all dimensions are in millimeters (inches). angles are in degrees. notes: 1. a heatsink underneath the area of the pcb for the mounted devic e is strictly required for proper thermal operation. dam age to the device can occur without the use of one. 2. ground / thermal vias are critical for the proper perfor mance of this device. vias should use a .xxmm (#xx / .0xxx?) d iameter drill and have a final plated thru diameter of .xx mm (.0xx?). 3. add as much copper as possible to inner and outer layers near t he part to ensure optimal thermal performance. www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT8858 catv infrastructure push-pull amplifier data sheet: rev d 03/15/12 - 8 of 8 - disclaimer: subject to change withou t notice ? 2012 triquint semiconductor, inc. connecting the digital world t o the global network ? product compliance information esd information esd rating: class iii value: passes 500 v min. test: charged device model (cdm) standard: jedec standard jesd22-c101 solderability compatible with the latest version of j-std-020, lead free solder, 260 this part is compliant with eu 2002/95/ec rohs directive (restrictions on the use of certain hazardous substances in electrical and electronic equipment). msl rating level 3 at +260 c convection reflow the part is rated moisture sensitivity level at 260c per jedec standard ipc/jedec j-std-020. contact information for the latest specifications, additional product infor mation, worldwide sales and distribution locations, and in formation about triquint: web: www.triquint.com tel: +1.707.526.4498 email: info-sales@tqs.com fax: +1.707.526.1485 for technical questions and application information: email: sjcapplications.engineering@tqs.com important notice the information contained herein is believed to be rel iable. triquint makes no warranties regarding the inf ormation contained herein. triquint assumes no responsibility or liabi lity whatsoever for any of the information contained herein. triquint assumes no responsibility or liability whatsoever for the use of the information contained herein. the info rmation contained herein is provided "as is, where is" and with all faul ts, and the entire risk associated with such informatio n is entirely with the user. all information contained herein is subject to change without notice. customers should obtain and v erify the latest relevant information before placing orders for triquint p roducts. the information contained herein or any use of such information does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other i ntellectual property rights, whether with regard to such information itself or anything described by such information. triquint products are not warranted or authorized for us e as critical components in medical, life-saving, or li fe-sustaining applications, or other applications where a failure wo uld reasonably be expected to cause severe personal injury o r death. www.datasheet.net/ datasheet pdf - http://www..co.kr/
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