TAT6254B fiber to the home rf amplifier 47 C 1000 mhz data sheet: rev d 0 5/28 /201 2 - 1 of 7 - disclaimer: subject to change without notice e ? 20 1 2 triquint semiconductor, inc. connecting the digi tal world to the global network ? applications ? high dynamic range ftth ? rfog (radio frequency over glass) and gpon ftth ? multi dwelling unit tia ? mini - node product features functional block diagram ? pin compatible with the tat6254c ? single 12 v configuration ? low noise 3.0 pa/rthz equivalent input noise ? 14 dbmv/channel rf out put at 55.25 mhz ? both rf and o ptical agc designs available, continuously variable ? low power consumption, 1.2 watts at 12 v ? - 12 to - 2 dbm opti cal input range ? linearity better than C 62 dbc cso and C 62 dbc ctb general description pin configuration the triquint TAT6254B fttp sf u video receiver provides a low noise analog interface to catv receivers and optical triplexers. the TAT6254B is intended for use in single family unit (sfu) analog video fiber to the premise (fttp) applications. the TAT6254B exhibits low input noise an d distortion that provides performance margin critical to meeting stringent fttp link requirements, particularly those with all qam channel loading. it runs on a single 12 volt supply, eliminating the need for an extra onu power supply. the TAT6254B prov ides automatic gain control (agc) to maintain a constant +14 dbmv/ch output to e nsure consistent video quality and ease of design. the TAT6254B is fabricated using 6 - inch gaas phemt technology to optimize performance and cost. the TAT6254B is pin and fu nctionally compatible with the tat6254c, though it has significantly increased gain and lower noise for all or near - all qam deployments. pin # symbol 1 tia in a 2,4 bias 1 3,13 nc 5 tia in b 6 bias adj b 7 tia out b 8, 18 bias 2 9 pa in b 11, 12 pa out b 14, 15 pa out a 17 pa in a 19 tia out a 20 bias adj a epad gnd ordering info rmation part no. description TAT6254B catv ftth phemt amplifier TAT6254B - eb evaluation board standard t/r size = 2500 pieces on a 13 reel. www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT6254B fiber to the home rf amplifier 47 C 1000 mhz data sheet: rev d 0 5/28 /201 2 - 2 of 7 - disclaimer: subject to change without notice e ? 20 1 2 triquint semiconductor, inc. connecting the digi tal world to the global network ? specifica tions absolute maximum ratings parameter rating storage temperature - 60 to +150 o c device voltage,v dd + 15 v thermal resistance (j nc. to case) ? jc 19 o c/w operation of this device outside the parameter ranges given above may cause permanent damage. recommended operating conditions parameter min typ max units v dd 12 v t j (for > 10 6 hours mttf) 150 o c electrical specifications are measured at specified test conditions. specifications are not guaranteed over all recommended operating conditi ons. electrical specifications (per applications circuit herein) parameter conditions min typical max units operational frequency range 47 1000 mhz rf gain at 553.25 mhz see note 1. 38 db gain flatness 1.0 db tilt see note 2. 4 db equ ivalent input noise 3.0 pa/rthz rf output level @ 55.25 mhz see notes 3 & 5. 14 db mv/ch output return loss 16 db cso see note 4 . - 62 db c ctb see note 4 . - 62 dbc gain control range see note 6. 33 db power supply current @ 12v 100 ma 1) g ain = 20*log (z/75) 2) from 47mhz to 1000mhz 3) agc using 3.3 %/ch omi, output level fixed by external agc 4) 8 0 channels analog ntsc 5) uses 4:1 output transformer 6) with suggested rf agc application circuit, 25db with optical agc application circuit optical input a nd triplexer requirements parameter conditions min typical max units optical input power - 12 - 2 dbm optical modulation index 3.3 %/ch triplexer 1550 nm pin responsivity 0.875 ma/mw triplexer 1550 nm pin capacitance 0.9 pf www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT6254B fiber to the home rf amplifier 47 C 1000 mhz data sheet: rev d 0 5/28 /201 2 - 3 of 7 - disclaimer: subject to change without notice e ? 20 1 2 triquint semiconductor, inc. connecting the digi tal world to the global network ? applic ation board typical performance v dd = +12 v, i dd = 100 ma (at 25 o c), temperatures are case temp 0 10 20 30 40 50 0 200 400 600 800 1000 1200 s21 (db) frequency (mhz) gain over agc voltage 8.5 v 7.5 v 5.5 v 6.5 v 4.5v , 0 v - 50 - 40 - 30 - 20 - 10 0 0 200 400 600 800 1000 1200 s22 (db) frequency (mhz) output return loss 7.5v , 8.5 v 0 v , 4.5v , 5.5v , 6.5v 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6 0 200 400 600 800 1000 1200 ein (pa/vhz) frequency (mhz) equivalent input noise 85c 25c - 40c 49 50 51 52 53 54 55 0 100 200 300 400 500 600 cnr (db) frequency (mhz) carrier to noise ratio popt = - 2 dbm popt = - 6 dbm tx rin = - 160 db, 6 db nf edfa @ 6 dbm, 1 m fiber, 3.3 % omi, rfout at 55.25 mhz = +16.8 dbmv/ch - 68 - 66 - 64 - 62 - 60 - 58 - 56 0 100 200 300 400 500 600 ctb (dbc) frequency (mhz) ctb 80 channels ntsc, 16.8 dbmv/ch at 55.25 mhz, pin = - 2 dbm - 40c 25c 85c - 70 - 69 - 68 - 67 - 66 - 65 - 64 0 100 200 300 400 500 600 cso (dbc) frequency (mhz) cso 80 channels ntsc, 16.8 dbmv/ch at 55.25 mhz, pin = - 2 dbm - 40c 25c 85c www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT6254B fiber to the home rf amplifier 47 C 1000 mhz data sheet: rev d 0 5/28 /201 2 - 4 of 7 - disclaimer: subject to change without notice e ? 20 1 2 triquint semiconductor, inc. connecting the digi tal world to the global network ? detailed device description the TAT6254B integrates two low noise high gain trans - impedance amplifiers in a differential configurati on followed by an output amplifier. it provides a low input impedance to minimize the effects of photodiode capacitances and stray impedance affects on gain flatness. the TAT6254B is fabricated using high gain gallium arsenide phemt technology developed for high - volume commercial markets. it provides improved gain and noise compared to older mesfet technologies and lower gain phemt technologies. the TAT6254B was designed as a general purpose fttp receiver. it allows users wide flexibility in setting ga in, tilt, and bias levels to best meet the requirements posed by different operators and architectures. the TAT6254B provides the flexibility t o address high levels of gain required by gpon and rfog architectures. designers can easily modify external circ uit values to enable wider optical input ranges, such as needed in newer high digital content ftth architectures. gain control is accommodated with a low cost external pin diode circuit placed between the input trans - impedance amplifier and the output a mplifier. this helps reduce the die size of the TAT6254B and provides for excellent pin diode distortion characteristics over a continuous control range. rf agc, figure 1, provides 33 db range. the optical agc solution, figure 2, provides 25 db range, us ing fewer pin diodes. there are no discrete steps over the full gain control range which eliminates the possibility of bit errors from a stepped or switched agc approach. rf agc solution, figure 1 optical agc solution, figure 2 for further informa tion email sjcapplication.engineering@tqs.com . biasing bulk optic cwdm reference temp comp rf detector agc gain gain adjust match tia tia rf output tilt (optional) 4:1 xfmr www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT6254B fiber to the home rf amplifier 47 C 1000 mhz data sheet: rev d 0 5/28 /201 2 - 5 of 7 - disclaimer: subject to change without notice e ? 20 1 2 triquint semiconductor, inc. connecting the digi tal world to the global network ? application schematic pin description pin symbol description 1 tia in a input to trans - impedance amplifier a 2,4 bias 1 bias port 3,13 nc no connect 5 tia in b input to trans - impedance amplifier b 6 bias adj b bias adjustment for trans - impedance amplifier b 7 tia out b output of trans - impedance amplifier b 8, 18 bias 2 bias port 9 pa in b input to post - amplifier b 11, 12 pa out b outp ut of post amplifier b c30 c26 c25 c24 c23 c22 c20 c17 c15 c14 c12 c11 c10 c9 33k 50k 3.3n 18 470p 20 4.7p 0.1u 0.1u 390n 10u u2b soic-8 lm258-a 1.1k 3 k 10k sense optical power in b pa pa out a pa bias a pa bias b pa out b nc 1 2 4 5 6 7 8 9 10 11 0.01u 0.01u pin drive drive vcc 50k 50k 0 pin pin shunt pin shunt 3 k view 19nh bias n/l 56p 120p 120p n/l n/l tia in a tia in b bias 1 bias 1 bias adj a bias adj b tia out a tia out b bias 2 bias 2 in a pa copyright, triquint 2011 +12v 12 13 14 15 16 17 18 19 20 nc nc u1 200 880n 0.01u 1k 0.01u photo cathode anode diode photo diode tat 6254b top adj 20 rf output 3.3 TAT6254B rev3 12.5 skyworks u2a 3 nc vcc vint 0.01u tcm4-19+ eval 0.01u active bias (optional) pin diode drive smp1307-027 smp1307-006 smp1307-005 minicircuits tilt 5.3n 470p 120 68n 680 10n 10n 36 36 10k 33k 13k bias adj lmv431 vcc 0.01u 10k 0.01u isense 2k 1000 0.01u adj bias vint high output vcc 0.01u smb or type f agc drive r1 loaded on top of c29 b1,2 loaded in the pad for l1 on pcb b3,4 loaded in the pad for l2 on pcb r23 loaded in the pad for c2 on pcb notes isense vcc 0.01u 12v 19nh 880n n/l 12.5 56p 1.1k mpc july 6, 2011 lm258-b soic-8 0.01u 360 54c ho board may be modified to work with new bom and reposition of r33 n/l n/l reserved do not load 1 3 2 r25 r24 r21 r20 r19 r18 r16 r14 r12 r11 r9 r8 r7 r6 1 2 b4 1 2 b3 1 2 b2 1 2 b1 l16 l15 l14 l13 l12 l11 l10 c29 r1 r31 c28 r27 c27 r28 r29 r26 r23 r22 l6 l7 r63 c18 r13 l9 1 2 b5 c13 c16 c13 c19 r15 r37 r36 r34 r33 r32 1 2 3 d5 vo 2 3 4 5 l8 + - vcc gnd 1 1 + - vcc gnd d3 d2 d1 r17 r100 r35 c1 c32 j4 j3 j6 j5 j9 j2 j1 1 1 1 1 8 4 4 6 8 7 5 390 www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT6254B fiber to the home rf amplifier 47 C 1000 mhz data sheet: rev d 0 5/28 /201 2 - 6 of 7 - disclaimer: subject to change without notice e ? 20 1 2 triquint semiconductor, inc. connecting the digi tal world to the global network ? pin symbol description 14, 15 pa out a output of post amplifer a 17 pa in a input to post amplifier a 19 tia out a output of trans - impedance amplifer a 20 bias adj a bias adjustment for trans - impedance amplifier a epad gnd grou nd mechanical information package information and dimensions this package is lead - free/rohs - complia nt . it is compatible with both lead - free (maximum 260 c reflow temperature) and lead (maximum 245 c reflow temperature) soldering processes. p in #1 identification detail mounting configuration all dimens ions are in millimeters . angles are in degrees. www.datasheet.net/ datasheet pdf - http://www..co.kr/
TAT6254B fiber to the home rf amplifier 47 C 1000 mhz data sheet: rev d 0 5/28 /201 2 - 7 of 7 - disclaimer: subject to change without notice e ? 20 1 2 triquint semiconductor, inc. connecting the digi tal world to the global network ? product compliance information esd information esd rating: class 1a value: passes ? 250 v min. test: human body model (hbm) standard: jedec standard jesd22 - a114 esd rating: class iv value: passes ? 1000 v min. test: charged device model (cd m) stand ard: solderability compatible with the latest version of j - std - 020, lead free solder, 260 this part is compliant wit h eu 2002/95/ec rohs directive (restrictions on the use of certain hazardous substances in electrical and electronic equipment). this product also has the following attributes: ? lead free msl rating the part is rated moisture sensitivity level 1 at 260 c per jedec standard ipc/jedec j - std - 020. contact information for the latest specifications, additional product information, worldwide sales and distribution locations, and information ab out triquint: web: ww w.triquint.com tel: +1.707.526.4498 email: info - sales@tqs.com fax: +1.707.526.1485 for technical questions and application information: email: sj capplication.engineering@tqs.com important notice the information contained herein is believed to be reliable . triquint makes no warranties regarding the information contain ed herein . triquint assumes no responsibility or liability whatsoever for an y of the information contained her ein. triquint assumes no responsibility or liability whatsoever for the use of the information contained herein. the information contained herein is provided "as is, where is" and with all faults, and the entire risk ass ociated with such information is entirely with the user. all information contained herein is subject to change without notice. customers should obtain and verify the latest relevant information before placing orders for triquint products. the informatio n contained herein or any use of such information does not grant, explicitly or implicitly, to any party any patent rights, licenses, or any other intellectual pro perty rights, whether with regard to such information itself or anything described by such in formation. triquint products are not warranted or authorized for use as critical components in medical, life - saving, or life - sustaining applications, or other applications where a failure would reasonably be expected to cause severe personal injury or de ath. www.datasheet.net/ datasheet pdf - http://www..co.kr/
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