SAS580 SIEMENS | Alldatasheet

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Switching Amplifiers for 4 Touch Keys SAS 580 { SAS 590 Bipolar IC Type Ordering code Package | —_—_ I SAS 580 Q 67000-S28 i sas 590 | Q67000-S29 | forse | Channel memory for use in radio and TV sets. The four stages can be selected by touching 1 the sensor area. Each stage is provided with an indicator output. The tuning voltage is applied ; to a common output. SAS 580 is the basic component for the first 4 channels. The number j of channels can be increased by 4 with each additionally connected SAS 590 amplifier. 3 Features | @ High input sensitivity | @ Low saturation voltage of the driver outputs @ Low temperature drift of the tuning switches @ Driver outputs to control filament lamps, LEDs, neon lamps, or nixie tubes ! @ Standby operation possible i @ Ring counter up to 10 kHz : @ No external diode matrix | @ Single power supply : i Maximum ratings | Supply voltage (without series resistor) Ve 36 v | Current consumption fe 18 mA i (for operation with higher voltage, 1 a series resistor is required) i Driver current h, by bb 55 mA 3 Max. driver current, tmax, S28 Bs, bs Ir, bs max 100 mA ] Junction temperature T 150 °C 1 Storage temperature range Tors =40 to 125 °C 1 ‘Thermal resistance (system-air) Rinse 90 kw I Operating range ; Supply voltage 1 Vie | 10 to 36 v ' Ambient temperature Ta | Oto 70 °c i

i SAS 580 1 SAS590 Characteristics with reference to test circuit, Vi, = 30 V, T, = 25°C ; min typ max : ff 1 ! Internal current consumption | 1 channel switched he \\45 7 los mA 7 channel not switched he j29 | a5 |ma : Voltage at pin 18 | | | during touching keys 1...8 Vas (325 [37 | 42 v : after touching keys 1...8 Yan 26 j29 |32 |v ; Saturation voltage of driver outputs: | | 3 RL=1kQ Va, V5, Vp, Vo 08 15 v R= 30 kQ V5, V5, Vo, Vo 30 | 60 mv Reverse voltage of driver outputs | Jey =100 pA Vs, Vs, Vo. Vo 60 | v Tev= 5yA Vax Vs. Vp Vo 50 ] v Tuning voltage Via Mia MaVis | 0.3 Ve-2 |v Input current of tuning voltage inputs Fa, has has bs 150 300 nA Offset voltage of tuning switches!) Voorn Yanit £100 | mv Yeas Mis +100 | mv 1 Temperature drift of tuning voltage 7 switches (Tq = 25 to 50 °C)1) ia 5 mV E Resistance of tuning output Ran 3 KQ | Ty < £30 4A 1 Input current I for channel switching amplifiers be Ia, ly Ig 20 80 200 | na : Input threshold voltage of switching ; amplifiers (b, l., I, = 80 nA) Ve. Vas Vo. Ve les v : Switching frequency of ring counter he l10 kHz : Reset to channel 1 | : ‘Switching pulse level Vorig \\15 v E Switching pulse duration Tsive 70 | us ; ‘Switching pulse rise time tsiun18 | 1 us : i Switching to the next stage | | 3 ‘Switching pulse level Vous 15 |v : ‘Switching pulse duration Tsi1e f25 jus i Switching pulse rise time tense | 1 | us ; Characteristics of the Z diode ! Z voltage (lie 30) +3 mA) ve [34] j39 Iv } 4) measured between connected input and pin 11 : 54 1 1 nn wT a =

SAS 580 ; SAS 590 Test circuit 20v 1 Re [Jemma Web ely ey Byepepay pron | stomy (UCT ICT eee | gee tT TT YI 1BV sown 07) oe Ring Counter! 1 AA 8 _Li7_ Tt 8 |r 154 [13 [2 it 0 pin) wy SAS 590 | tye o SAS 580 p SAS 590 Switching Pulse if? Bp 546 g 7 ES ye 7 89 pone OFC) D0) 0) | 0 et} (] | (]® iis | Re=30M2 Rs 4 2 all C= 1nF R We Re Wel Het R Ul Ur +1} _ 1 Ta! \\e a3 (tab TaS \\Ta6 \\to7 \\To8 : Ta: Key | SAS 580 is absolutely necessary for testing SAS 590; : otherwise no function I ‘SAS 580 can be tested individually. i During channel changes, the capacitor operating as a load on pin 11 is reversely charged 1 with a current of approx. + 50 pA. : SAS 580 only: After applying supply voltage V;g, channel 1 is selected, ie. the tuning volt- | age is switched from pin 15 to pin 11 and the lamp at pin 3 is switched on. | Viz <0.5 V means standby operation, i.e. even when selecting another ' channel, the previously selected channel remains stored. Selection of a : new channel is not possible. A stored channel must be present again I after closing S1. 1 i 55 : ee ee ieee rs !

r : 18/17/16 15, a 13 12, 41 }10 i { | | j | |p op ! [Nop 1 Lye I ili | ibe i je] | | \\ | fe] j si st si 1 j sa | | Lh | [AS [4 Lah | bead qt | + ~ I | Lae Tae Vaz \\ ia H > ] 1 > | va SB I | ! i i : | ! 1 2 3 4 s 6 7 8 9 1 , 16 36 16 46 | Ta i {ta fra 1 1 ! L SQ: Current source I SB: Standby I OP: Operational amplifiers 3 Ta: Key E Figure 1 i E 56 i at nthe eee i

i SAS 580 ; SAS 590 eee Circuit diagram: one channel oo | 2 2 | 8 5, — I i} F --{-----} 2 3 | | | & |p ze AE | ! Fa a l $$$ $ 2 2 Ss 2 | a E3 2 | 3 ; 2 = E i ! | Tx 8 : tt iffy g i 2 rn oa | = = an i e ! as oe ; | oe BR ; ra iz : = ” | < : 4 = poe 1 Soiatninten Galette ieee 3 | = g : = « : pH | Figure 2 :

i Ve — ° | = iant | Figure 3 (s) mY Vp—Parameter ne oe i j2-p ft ee ee on eee | ee ee , Lees sf, |] | a Figure 4 1 a ee 0 8B oo, 8

; 8 Byo-- a ; she Siis== ele | D MTT f LT et = aeiee | = . ret St] @ Hiibers a ) st] [ie Ae 21 || it)? Te : | mil 2st 4 | Po oe an =~ Joi 4 4 i st] oT) = ~ sq] le 3 al I) ra 33 | | “8° > — ee 7 ee a oe b [ aq ef as 2 als “Se oy. rr—4 1 = ues 555 2 —s ret. cas 7 | 27° | = | Figure 5 :

a SAS590 | Application circuit 2 als gu Real Ue | 2 F 1 | te He | ° | BR) op — a4 7 | Seti]. (ett NH] od 8 . | rae & | ue t | a 3 + | | qth | — ° one yt | 8 | | < a ee | I | | f Om | : a te Eyed | ° | 2 > | S| ol _ ret [oT] _ “+ | sd] lat. oH a : ot SES | eee Ses 5 ihe 38 Ss : ret” ag Ho gis z_. AL _] 2a]? ° Sie, Figure 6 | 1 ro wre: ~~ a ee j