TBA130-2 SIEMENS | Alldatasheet
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Features
@ °C bus control for the functions volume, muting, voice/music switching, as well as SCART recording/playback switching @ Integrated deemphasis resistor @ Low harmonic distortion factor FM IF amplifier, comprising a limiter amplifier with an FM demodulator. The AF section includes an SCART recording/playback switch, a voice/music switch, as well as a digital/analog converter to set the volume for the AF output. Control of volume, SCART recording/playback switch, and voice/music switch is achieved via an FC bus serial interface. The component is used in mono television sets with internal J?C bus control. Type Ordering Code Package TBA 130-2 Q67000-A8054 P-DIP-18 Circuit Description In its FM section, the component contains an eight-stage, symmetrical limiter amplifier with subsequent coincidence demodulator. The AF section contains a mute circuit, an analog switch for the SCART recording/playback function, as well as a 6-bit D/A converter to set the volume for the AF output, and a voice/music switch. Control of the D/A converter, the switch function for record/playback and voice/music is achieved via an [°C bus serial interface (ref. diagrams). Data from the processor passes through an [°C bus control and is stored in registers according to its function (latch 1-3). If the bus is free, both lines will be in the mark state (SDA, SCL high). Each message begins with the start conditions: SDA goes L, while SCL remains H. Any additional information transfer takes place while SCL = L, data is accepted by the control with the positive clock edge. If SDA goes H while the clock is H, the circuit recognizes a stop condition and thus, an end of the message. The logic operates according to the table shown on page 375. All messages are transmitted byte-by-byte, followed by a ninth clock pulse, while the control returns the SDA line to L (acknowledge condition). The first byte consists of 7 address bits, with which the processor selects the TBA 130-2 from among several peripheral components (chip select). The eighth bit determines the direction of the subsequent data traffic (in this case read mode only). The first and the second bit of the data bytes determine which latch will be called (sub- address). The volume information is contained in 6 bits (64 steps). For reasons of compatibility with the TDA 6200, a second bit with the same sub-address but with random contents must be transmitted for setting the volume. 364 01.90
os Vine +¥s SCL SDA 1p } 9 9 12C 9 ° _ I I [ i 22nF 22nF 5 uF Ss 2.2uF [ Ja7ka . 220F 18 7 16 1S Hh 13, i 11 10. ry 7" — a Lt 2c Bus VU inter fac | | TBA 130-2 — 6 Bit _ 19k OVA VAN cA a Voice SCART lusik 1 2 3 G IS 6 7 8 9 3304 [ ]2oon [ ]o.7ko [ ]are0 ‘To0pF 4700 Cc GIF | 33nF (yyerass: b 4 b SCART SCART Vv, ue Bo
4 STF Input Output oe
4IpF | tnF 27kQ Siemens Aktiengeselischaft 365
Expanded Block Diagram Part 1 AS i a. VoL aA Po o 5 — | é Ey P x ' ' NS ng a : [ls a. i bake. Siemens Aktiengesellschaft 366
Expanded Block Diagram Part 2 |_| 8 ; [ian J} =3. 4 = rr ° — Beh o838 eBs ee ee a . O-| 26 hh Le 48 Ps gs galcy © _y~ & | = +— | ; § & ei 6 eS © Siemens Aktiengesellschaft 367
Pin No. Function “1,2 | [Fampliier output (emitter follower) — 3,4 | Demodulator tankcircuitconnection = (high impedance input — slope of S curve determined by external resistor between pins 3 and 4) 5 a Connection for deemphasis capacitor . 7 i (a series resistor of 11 ka is integrated) 6 __| AFinputof SCART interface, : — ‘7 __ | AF output of SCART interface (emitter follower) _
8 AF output (emitter follower)
9 Voice/music switch (open collector; max. 1 mA!)
10 Test pin (access to volume control)
1 Data inpuvoutput of the PC bus control ~ __
12 ‘Clock frequency input of the °C (inter IC) bus control.
13 Supply voltage
14 Internal reference voltage (6 V typ.)
15 GND
16 IF input _ ~ :
(limiter amplifier input; internal resistor between pins 16 and 18 is 800 @ typ.)
7 Limiter amplifier operating point feedback — :
(RF decoupling of IF amplifier with appropriate capacitors if required)
18 Limiter amplifier operating point and low end; MUTE input - 7
(RF decoupling of IF amplifier with appropriate capacitors if required) ‘Siemens Aktiengesellschaft 368
Parameter Symbol Limit Values Unit Suppy votage ac vv Reference curent ier [2 fa DC voltage _ Vi1,12 i} | Vs Vv DC voltage Vie.17.18 0 Veer v DC current 0 2 mA Junction temperature Ti 150 c Storage temperature Tag 125 c Thermal resistance (system-air) [Rnsa | 80 Kw Operating Range Frequency f 01 12 __| MHz Ambient temperature Ta 0 70 Cc Siemens Aktiengesellschaft 369
Vs = 12 V; Ta = 25 ‘CG; fie = 5.5 MHz; af'= + 30 KHZ; finos = 1 KHZ Parameter Symbol Unit Current consumption Is [24 fae Sf 48 mA Reference voltage | Vrer [54/6 |66 |v Input voltage Vite rms 100. | nV for limiter threshold Va7.8=-3 dB L SCART output voltage | Vor 450 850 mV Viserms = 10 mV | AF output voltage | Vos mv L byte = BF DC voltage portion Vor; Vas Vv Viserms = 10 mV; af = 0; THD = THD on | Total harmonic distortion THD 7; THD 1 % Vissrms = 10 mV | L byte = BF AM suppression” | come dB Viserms = 500 wV; m = 30% Volume control AVe dB L byte = 80-BF | Max. input voltage SCART Vierms Vv —THDesW% — _ Gain between SCART input Gsc | dB (pin 6) and AF output (pin 8) | | L byte = BF j Switching Voltage Muting ON (AF OFF) ce ee ee OFF Vios lo | [ay Voice / Music Switch (/oo = 1 mA) V/M = 0 = high-ohmic Rorr 75 100 ka Pin 14 Vaer VIM = 1 = low-ohmic Ron 800 Q DC voltage at pin 9 (os = 0) LVes 6.6 Vv 1) Test conditions for the reference point ‘fits 5.5 MHz; Virarms = 10 mV; Af = +30 KHz; finod = 1 KHz. Siemens Aktiengesellschaft 370
Characteristics (cont'd) Vs = 12V;Ta=25 C; fis = 5.5 MHz Parameter Pe Limit Values Unit PC Bus (SCL, SDA) Edges SCL, SDA Rise time Ce ee ee Fall time Ce eee Shift Clock SCL Frequency fees fo | [100 | kHz Hepulse width [mon fa Ts L pulse width us Start Set-up time [rus a4 TT Ts Hold time [osm Ja Ts Stop Setup time [ruso fa Ts Bus free re ce Data Change Set-up time [ror Tt Ts Hold time us Input SCL, SDA Input voltage Vin 24 v Vin 10.3 v Input current In 50 nA a LL] kL 100 jwA Siemens Aktiengesellschaft 371
Characteristics (cont'd) Vs = 12 V; Ta = 25 C; fits = 5.5 MHz Parameter me Ten eee Unit Output SDA (open collector) Output voltage Vou 55 |V Ri=2.5kaQ Vor 0.4 v Tov=2mA __ Design-Related Characteristics Input resistance [Rie [20 TT ka Output resistance [Roms | | [200 a Input resistance Ris joo | | ko Input impedance | Zi Le ee IF residual voltage Vars8 mV AVs tms = 500 mV; fs = 100 Hz a _ Hum suppression ‘hum oB Vs/Va7, (without deemphasis C) AVs rms = 500 mV; fs = 100 Hz Crosstalk rejection” dB Verms = 2V; SC = 0 1) Test conditions for the reference point (firs = 5.5 MHz; Vi tarms = 10 mV; Af = +30 KHz; fined = 1 KHZ ‘Siemens Aktiengeselischaft 372
Ws Vue Vs SCL | SDA TP } ¢ 9 > Fee MUTE 00 ] 220 ! L a (>) L. [Jann zane 5 22nF a (| Ee [) TBA 130-2 i i B é F g 9 S10F 1pF ==1pF == 1pF 4Ipe | nF 1K * SOR | WkR . | 100k2 4108 27K t nm ’ other % Jaonet¥A Ta ona vuesonms L: 10 turns, 0.2 Cul; Qe approx. 25 €.g. Vogt Coil Assembly 517 12 000 00 * STYROFLEX Capacitor Siemens Aktiengeselischaft 373
s ff < ee 4 2 4%] fe z 3 2 2 oe red he Hf = gale is E eae Le e a 9 bd = a = g| 22) 2 i. as Fy | H = [FH $ * 2 oO ls 2 in gi ER |” , ole btae ‘os |.8a| JS _ [8 ¢ 2 Sr 482 " Es z, mute a s —? <aner Control voTfage Fa Fa i =v z | Ele ; | 4 g iS 5 S48 . | " B34 86 Ed 3 3 & ~ = Hill ss 2 dh bo EB a eS 3 4 ay = 2 le E . e We 4. fb g : bebe m 3 | 8 : 2 2 = z |< opts! agi] e Ls } — 2 Lares fae ® 3 S| 5S 8 Fy g s = 2 [sl L: 10 turns, 0.2 CuL; Q8 approx. 25 €.g. Vogt Coil Assembly 517 12 000 00 * STYROFLEX Capacitor Siemens Aktiengesellschaft 374
The following data format is used: 1) Chip Address MSB LSB 1 0 0 i} o oO 0.0 acknowledge MSB is transmitted first 2) Data Bytes with Sub-Addresses a) volume MSB LSB
1 QO Vos Vos Vos Voe Vor Voo
1 i) X KX KX X XK X The second byte has to be included in the transfer Vxs = MSB Vx0 = LSB 1 0 0 0 0 0 0 90 min. volume 1 0 1 1 1 1 1 1 max. volume b) SCART control byte MSB LSB 1 sc X X X X X 0 SC=1 SCART playback; SCART input is connected with AF output SC =0 standard operating mode c) AF control byte MSB LSB o 0 M X WMX X X V/M =0 pin 9 high-impedance VIM =1 pin 9 low-impedance M =1 muting for AF output M =0 AFON Siemens Aktiengeselischaft 375
SDA | [ _) |) awe ts prfsusucet aa nt ~ = set | ] vena Osta tvoar _ | [noon tsusta Set-up time (start) tHosTa Hold time (start) eae H- pulse width (clock) tow L- pulse width (clock) tsuoat Set-up time (data transfer) taooat Hold time (data transfer) tsusto. Set-up time (stop) teur Bus free tr Fall time tr Rise time Above times are referenced to Vin and Vi. values. Siemens Aktiengesellschaft 376