TBA229-2 SIEMENS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 10

Technical content

Features

@ High AM suppression over a very wide input voltage range © High sensitivity © Very high symmetry Type - i Ordering Code Package _ Circuit Description The component contains two separate FM sound IF sections for television stereo applications or for multistandard receivers. Each FM section consists of an eight-stage symmetrical limiter amplifier followed by a coincidence demodulator and an AF pre- amplifier with a low-ohmic output. The component features considerably improved AM suppression characteristics with small input signals, as well as a very low frequency deviation between THD min and AMmin. 377 01.90

Parana p= [aime Tae Supply voltage [Vs i vo Reference current Tree jo mA IF input voltage [Viems [0 mV DC voltages Vo. 10,11 Veer v Vie r5.16 Viner v DC currents [inessre 10 [2 ma Junction temperature Ti en ee Storage temperature range [roo [40 [125 |e Thermal resistance (system-air) [| Rnsa | 80 KW Operating Range Supply voltage [vs 0.51 18.75 Vv Ambient temperature eB Fequen 0.4 12 MHz Siemens Aktiengeselischaft 378

Vs = 12 V; Ta = 25 °C; Virsa rms = 10 mV; fire ss,14 = 5.5 MHZ; fines = 1 KHz; A f= + 30 kHz (if not stated otherwise) Parameter [ene | Limit Values | "| Test Condition Input voltage for limiter threshold Virus 100 | nV Virerms 100 |uV |Voss=-3dB Output voltage Vosrms 600 | 700 | mV Vos ems 600 | 700 | mv DC voltage portion |Vos= ‘48 Vv Vos = 48 V__|af=0; THD = THD min Total harmonic THDs,THD s 0.4 % |\\THD = THD min distortion AM suppression 55 |60 dB Vins =1 MV; m = 30% 55 | 60 GB | Virms=1 mV; m = 30% Cross-talk rejection Ciri2 = Vos |60 GB | fies) = 5.5 MHz; Afi = 0 kHz; Vos Vitis = 4 mV; Virerms =10 mV |fie 11 = 5.74 MHz; Afis = 0 KHz Crv2 = Vos! |60 GB [Vissms = 4 mV; Virerms =10 mV Vos Reference voltage Vos 5.4 _ 6.6 Vv _ ‘Switching voltage muting ON (AF off) Vie 8 Vs |V OFF Vis 0 3 Vv Design-Related Values Input resistance ka LS Ouiputresistance [Rows | | a ioutinpedance [Zn | eco} [a _| IFresidual voltage [Voesm | (15 | [mv | Hum suppression fs= 100 Hz AVs mms = 500 MV; Vs/Va4; Vs/ Vos Frequency deviation | 4 fir | +10 kHz AMmin — THD min Siemens Aktiengeselischaft 379

| [Es | \\ 10 0 [Ea ts rf? D a a Sn o - Ss —-0 i—o + =) Ey dt oi + ~ MQ Oe Te Ss a a: < [to sor. pO oe Ci Cea Siemens Aktiengesellschaft 380

PinNo. _| Function 1,2 Demodulator tank circuit connection IF 1 | (high impedance input - slope of S-curve can be determined by external resistor between pins 1 and 2)

3 GND

4 AF output IF 1 (emitter follower) oe

5 AF output IF 2 (emitter follower) ;

6 Supply voltage

7,8 Demodulator tank circuit connection IF 2 (high impedance input — slope of S-curve can be determined by external resistor between pins 1 and 2) _

9 Operating point feedback of limiter amplifier and low end IF 2

(RF decoupling of IF amplifiers with appropriate capacitors is required! __

10 Operating point feedback of limiter amplifier IF 2

(RF decoupling of IF amplifiers with appropriate capacitors is required!) "1 IF 2 input (input of limiter amplifier IF 2; internal resistor between pins 9 and 11 is typ. ___ | 800.9) a

12 GND _ a —

13 Internal reference voltage (typ. 6 V)

14 IF 1 input

(input of limiter amplifier IF 2; internal resistor between pins 14 and 15 is typ. 800 9) a -

15 Operating feedback of limiter amplifier IF 1

(RF decoupling of IF amplifiers with appropriate » capacitors is required!)

16 Operating point feedback of limiter amplifier and low end IF 1

_ (RF decoupling of IF amplifiers with appropriate capacitors is required!) Siemens Aktiengesellschaft 381

AF Output Voltage, Total Harmonic Distortion, Circuit Voltage versus Circuit Qe nie coon ie SCT ee % 1200} 701.2 EE — 2a HD | 40 dy 1200 Ves Se a eS ee 1s vo TI rear TIE once) | ooo Po A 97 rg TC wot at HU VA eee ‘00 “rian wot BOOZ I Cn), 28 Se | vol ont YA ZT 00 “rn Cn i, | mot oo ALA TT TP 20 Sel of ot gL LIM TM TTT TT , ° 10° 10 10? 10? ka —+h va: Vaarms; Vos rms THD: THD 4, THD s Measured at: fie = 5.5 MHz; af = 30 KHZ; fos = 1 KHz; Vir = 10 MV Veet Vi2=Va8 Measured at: fiw = 5.5 MHz; af = 0 KHz; Vie = 10 mV Qs: Q between connections 1, 2 and 7, 8 Measured at: fie = 5.5 MHz/afi for 3 dB bandwidth, af = 0 kHz; Vi « = 10 mV Circuit: L = 10 turns 0.25 CuL; Vogt Coil Assembly 517 12 000 00 without cap C = 1 nF STYROFLEX Capacitor Siemens Aktiengesellschaft 382

9° si MKR 280.1 kHz REF -17.5 48m ATTEN 1008 ene 20.01 4B = = ppt eT PNT iv wa 4 IN Z| ew CENTER 5,500 MHz SPAN 320 kHz RES BW 3 kHz VBW 10 kHz SWP 100 ms Mee 1 2max = 450 mV55 Tank Voltage versus fir MER 293.0 kHz ReF -17.3¢8m ATTEN 1008__—uces__0.00 dB T T eae A Ss Arne | | NA A ~~ |_| | CENTER 5.740 MHz SPAN 320 kHz RES BW 3kHz VBW 10 KHz SWP 100 ms Ver T= Bmax = 50 mop Siemens Aktiengesellschaft 383

Total Harmonic Distortion versus Detuning (FM Operation) THD « = f (fvw); Viz 10 mV; Vs = 12 V; fines = 1 KHz, Af = 50 kHz, 30 kHz, 12.5 kHz % venes 105 == a | _ | | oat aw AY i Bam a a ee LF ———— a ORG AO A A a sO C7 A A ee CG OO A ae = 540 542 S46 Sh6 S48 S50 552 S54 556 558 $.60 MHz ——~ fr Total Harmonic Distortion versus Detuning (FM Operation) compensated for minimum total harmonic distortion at fir = 5.5 MHz; THD =f (fir); Vi= 10 MV; Vs = 12 V; fmos = 1 KHz, af = 50 KHz; 30 kHz; 12.5 kHz % VENISO _——— eee se mo Se a ee z | ee ESN | p= | SSNs 1 — f 4 Loa Co NN es a ar pS NG we AL | oos- 1 5.64 566 $68 S70 572 S7h 576 578 $80 582 5.86 MHz ——fy Siemens Aktiengeselischaft 384

“4 502 502 | ANMeTE =e 22nF 2anF Gok Y 8A 127 | AIn | Tak 00nF Ink 16 3 he 13 2 n 0 9

0 TBA 229-2

1kQ | TkQ — | tnF* daF* | i I | | | 100 | nF t a | L Vers Yaatz 1s Lz Turns 0.2CuL; Qs See page “Diagrams” uenss eq. Vogt Coit Assembly 517 12.000 00 + STYROFLEX Capacitor Siemens Aktiengesellschaft 385

; re] LB Oe apes | os | ae E zi z ly | 5 £44 aa "q SiS oO = reed ° “Tuner Control Voltage aH —— eT : SBMS Be 3 5 E - He ss a Bh lo F = jt 5 je P = & 4 EE Pa ce | iS | | Fa ea < lapt2 Se Paty) 4st | Es, C ar fy g L = 10 turns 0.2 CuL; Qe approx. 25 e.g. Vogt Coil Assembly 517 12 000 00 Siemens Aktiengesellschaft 386