TAA661_V01 ETC

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—_— FM IF AMPLIFIER-LIMITER AND DETECTOR © HIGH GAIN © FREQUENCY RANGE 5 kHz to 60 MHz © THRESHOLD LIMITING VOLTAGE 100 pV (5.5 MHz) @ COINCIDENCE GATE DETECTOR © AUDIO OUTPUT VOLTAGE 1.4 Vrms (d = 1%) The TAA661 is a monolithic integrated circuit in a 14-\\ead quad in-line plastic package or in a Jedec TO-100 metal case. Particularly designed for use in TV sound IF or FM IF amplifiers, it includes: a limiter amplifier, a coincidence detector and a voltage regulator. By using the TAA 661 the ratio detector transformer is eliminated and the audio signal is capable of driving an output amplifier directly. Detector alignment is obtained by adjusting a single coil which provides the quadrature signal to the coincidence gate detector. ABSOLUTE MAXIMUM RATINGS vy, ‘Supply voltage 6 OV Prot Power dissipation at T,.., 70°C for TAA 661 A5S 350 mW for TAA 661 BX2 500 mW Tog Storage temperature 25 to 125 °C Top Operating temperature Oto 70 °C op Pere eee ORDERING NUMBERS: TAA 661 ASS (for TO-100 metal case) TAA 661 BX2 (for 14-lead quad in-line plastic package) MECHANICAL DATA Dimensions in mm aime 2 bn , eo BET Daren ri ous, 2c L | BES alt = su J | Soe) CO) ub = - SS ee LiF" fo atal i ita No Note Bd “TSU SUe TAA 661 ASS TAA 661 BX2 295 5/73

SCHEMATIC DIAGRAM % | i” pb ][4 owenmnasis Decouping cin) @—__ ty po ee 1) Bn | | —— JF St] 1} PEERS oon o St nee na NOTE: the number in brackets refers to the TO-100 package CONNECTION DIAGRAMS For TAA 661 BX2 For TAA 661 ASS pe-emenasis []1 4h) OUTPUT « a vecouruns —[]2 n)) “Ny sews gg oxcouruno ne (> wal] enase-sirt Ne Ie /\\ of Ne /\\ vecourtins — []5 wl} Ne %eQ 6) DECOUPLING INPUT }E 1 GROUND puase-suirt OL _\\s_T prase-SHIFT pecourtins — []7 a] paase-swier s-0386 296

SOnF © TI ouput © D © © e{j2| © e) © ® a 1 =5.5MH2 s0nF | 50 L = 35 turns of 0.16 mm nylon covered copper wire ELECTRICAL CHARACTERISTICS (T,,,, = 25°C unless otherwise specified) ee ec) iy Quiescent drain current V,=6V 9 14 v,=9V "1 7 Vv, = 12V 13 20 Victhreshoia) Input limiting voltage f =5.5MHz 100 uv f = 10.7MHz 230 Ww Ve Recovered output voltage V,=10mV f= 5.5MHz fy = TkHz Af = +50 kHz Vv, =6V 0.5 Vers V,=9V 0.75 Vorns V, = 12V 14 Vers d Distortion V,=12V V, = 10mVv f =5.5MHz f,, = 1kHz Af = +25 kHz % 297

ELECTRICAL CHARACTERISTICS (continued) Peremeer ta Typ, en. [Un AMR Amplitude modulation rejection V,=12V V, =10mv f' = 5.5MHz f,, = 1kHz Af = =50kHz “m =03 R, Input resistance f = 5.5MHz f = 10.7 MHz C, Input capacitance V,=9V. ft =55MHz | 25 |r | Z Output impedance V,=6V 200 a V,=9V 150 2 Vi=t2v 100 a R, Min, load impedance without clipping v,=6V Ko Vv, =9V Ka Vv, = 12V Ka R;, Resistance between pins 5 and 6 of the TAA 661 A5S f = 5.5MHz ' Vv, =6V ko | V,=9V ka Vi = 12V Ka ©, Capacitance between pins 5 and 6 of the TAA 661 ASS 298

TAA 661 AS TV SOUND IF AMPLIFIER (outputs reterred to the TAA 661 BX2) 68pF 12pF Oty. RF Input {| . 5.5MHz Ry~S0u ® cane 150 pF © an @® ry uF OQ TAA 66/8 pO Input 12, @ LF Output Filter © ® _ (5.5 Mz) ® 10nF fone] ce TonF Tn Phase- shift network PHASE SHIFT NETWORK cw, bo Ro Tey Lg = Constant without R ss cove a} bjcjd je jt icles 299

Fig. 1 - Typical distortion Fig. 2 - Typical amplitude modulation rejection ¢ 7 60 F ry) Velev A asm fa wR FYI ps5 une 4 \\ 15.5 Miz (a8) lat V=10 mv V=10 mv \\ N : 0 eo] A \\ TRAN LUN TT IN TN LTTRSSU cero TESS 4 AAT TN i wo 2 4 6 Bit 2 4 C.ipFl 1 2 4 6 BY 2 ip) Fig. 3 - Typical amplitude modulation rejection vs input voltage AMR SSS SS EES 7 AERA . so Ag al Nas ae CEE Cer . ES H —tmeteme | te “Hs x . 4 sa NON ( ie Ze SS || “gee cage mene WT Pop 33 ~ 2 2 wo Fn ” ‘ ete a a anv) 360

Fig. 4 - Typical recovered Fig. 5 - Phase response of the output voltage TAA 661 wide band amplifier d at 25°C ° LINE ete Rest wE Te Eau Min ia

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vaiomy (* | | SZ te me OO NO : ay a KS es o8 LPI BINNS TYPICAL APPLICATION + oan sow TAA 661 in TV receiver. L5 ; 4 M0F ato. Ih h | sabe fh VIDEO ' ° ic DRIVER © ©) ' 109 Lox [} OA 06a = HH eorT Ph 6 :| Ze Js ; | or r ite IH-®)sca. S OL ae 1 | LINEAR (] TEAR, [] so. pF ' 6800 Notes: . —_ — Pin numbers shown are for the TAA 661 BX2. — L, = 24 turns of 0.16 mm nylon covered copper wired with tapping at turn 12 from ground. —-k = 35 turns of 0.16 mm nylon covered copper wired. — Neosid former K4/21.5/0.5 - Neosid core GW4 x 0.5 x 10FE10(Q,=80). 301