- 778 eter Vries a ss ow -- = cincuits = An " COMPLEX SOUND age ERATOR 004096 BULL N S 72642, 1978 21? iS + as N OR NF DUAL-IN-LINE PACKAGE Generates Noise, Tone, or (TOP VIEW) Low-Frequency-Based Sounds, or Combinations of These ENVELOPE SELECT1 1[] UJ []28 ENVELOPE SELECT 2 . Grounp 2{(] []27 MIXER SELECT C Sounds Are Defined by User EXTERNAL NOISE CLOCK 3] []26 MIXER SELECT A via External Components NOISE CLOCK RESISTOR 4[ F]25 MIXER SELECT 8 NOISE FILTER CONT. RESISTOR 5[] f]24 ONE-SHOT CONT. RESISTOR Allows Custom Sounds to be NOISE FILTER CONT. CAPACITOR 6 [] F] 23. ONE-SHOT CONT. CAPACITOR Created Easily DECAY CONTROL RESISTOR 7 [] []}22 vcO SELECT . ATTACK/DECAY TIMING cap. 8{[ [}21 SLF OSC. CONT. CAPACITOR Low Power Requirements SYSTEM INHIBIT 91 [] 20 SLF OSC. CONT. RESISTOR . ATTACK CONTRGL RESISTOR 10[] f]19. PITCH CONTROL Allows Muitiple-Sound AMPLITUDE CONTROL RESISTOR 11[] F] 18 VCO CONTROL RESISTOR Systems FEEDBACK RESISTOR 12{] [} 17 VCO CONTROL CAPACITOR . . : aupioouTPUT 13{] F]}16 EXTERNAL VCO CONTROL Compatible with Microprocessor vee 40 1S Veeq Systems description The $N76477 complex sound generator is a monolithic chip combining both analog (bipolar) and digital (lok) circuitry. It inciudes a noise generator, a voltage-controlled oscillator (VCO), and a super-low-frequency oscillator (SLF) together with a noise filter, mixer, attack/decay circuitry, audio amplifier, and control circuitry to provide noise, tone, or low-frequency sounds and any combinations of these. Programming ts accomplished via control inputs and user-defined external components, which allows a wide variety of sounds to be created and tailored for particular applications. This device may be used in a variety of applications requiring audio feedback to the operator including entertainment equipment such as arcade or home video games, pinball games, toys; consumer-oriented equipment such as timers, alarms, and controls; and industrial equipment for indicators, alarms, controis, etc. Operation is either from a five-volt reguiated supply applied to Vreg, OF from a 7.5-volt to 10-volt supply applied to a built-in voltage regulator through the Vcc terminal, in which case a regulated five volts is available from the Vreg terminal to power a smal! amount of external circuitry, or to provide a high-logic-level voltage to logic inputs. More detailed information on che functions of various parts of this device is found elsewhere in this data sheet in the section entitled Operation. absolute maximum ratings at TA = 25C (unless otherwise noted) Supply voltage, Vcc (see Note 1) 15V Supply voltage, Vreg . 6 Input voltage: any logic input > 12V any capacitor input .5V Operating free-air temperature range . OC to 70 C Storage temperature range . 65C to 150C Lead temperature 1/16 inch (1.6 mm) from c case e for 10 seconds . 260C recommended operating conditions NOM MAX UNIT Supply voltage, VCC 10 Vv Supply voltage, Vreg 5 5.5 Vv Operating free-air temperature 25 40 c NOTE 1: All voltage values are with respect to the network ground terminal. Copyright w 1978 by Texas Instruments Incorporated TEXAS INSTRUMENTS INCORPORATED POST OFFICE BOX 226012 @ DALLAS, TEXAS 75265TYPE oN/O040/ . COMPLEX SOUND GENERATOR electrical characteristics at Vreg = 5 V, TA = 25C (unless otherwise noted) PARAMETER AT PINS TEST CONDITIONS MIN TYP MAX | UNIT Vv High-level i 1 1, 9, 22, 28, 2 10 Vv igh-level input voltage 1H 9 9 26, 27, 28 Vv Li 1 Hi bt 1, 9, 22, 28, ag V ow-level input voltage . th 9 26, 27, 29 Maximum peak-to-peak R 217k, R = 100 kQ, Vope p' 13 load fdbk 25 3.0 V output voltage swing Mpin 11) = 200 vA Vreg Regulated output voltage 15 Veco = 3.25 V, Hoag = 10 mA 4.5 5.5 Vv Input regulation 15 Vecz7SVtoi2V, lNoaq = 10MA 150 mV One-shot capacitor 23 2.5 Trip points Noise filter capacitor 6 3.2 Vv SLF capacitor 21 2.5 Externai VCO cutoff voltage 16 2.35 Vv System inhibit or . 9, 22 . 150 High-level VCO select HH . Vip =2V uA input current . 1, 25, 26, 40 75 Other logic inputs 27, 28 : 4,5, 7, 10, Control input current 1 400 nA 11, 18, 20, 24 Dynamic output impedance 13 100 2 Voc = 8.5 V, Icc Supply current at Vcc 14 " 5 10 mA All inputs and outputs open functional biock diagram vco EXTERNAL PITCH SELECT VCO CONTROL CONTROL eceoceor rrr ees Tt Y. oro |r re --47 i 22| 16 19 | \ O 1 SLE 12 SUPER-LOW- DAA EXTERNAL VCO WL veo FREQ. OSC OR SLF vco 21 " 1 CONTROL} CG ISLE) SELECT 7 O [ CONTROL | _ J aninn | | NOISE \, sl CLOCK 4 hf} NO! CONTROL | NOISE NOISE NOISE { Ma PER 1 CLOCK GENERATOR FILTER 6 0 CONTROL EXTERNAL 13 J 15) Veg (FV) NOISE CLOcKPT 1a! reg | REGULATOR Vee ~ 75 VI \ | | SYSTEM + GROUND SYSTEM p19 DP} MIXER 121_ FEEDBACK INHIBIT 7 | INHIBIT > T RESISTOR LOGIC 1 | ENVELOPE 3 | GENERATOR I AUDIO | ENVELOPE AND OUTPUT " SELECT MODULATOR 1 [one Logic | CIRCUT 7 23 24 1 28 26 ak 8 7| = 1 2 A BC ATTACK ATTACK DECAY AMPLITUDE DECAY TR TROL Oe ROL ENVELOPE MIXER TIMING CONTROL CONTROL CONTRO SELECT SELECT CaP O denotes programming via caoacitor O denotes programming via resistor 4S denotes.programming via logic level > denotes programming via analog vaitage FIGURE 1 TEXAS INSTRUMENTS INCORPORATED POST OFFICE BOX 225012 @ DALLAS, TEXAS 75265SF oe wets weTe COMPLEX SOUND GENERATOR _ TABLE1 SUMMARY OF FUNCTIONS INPUT PIN PARA, DESCRIPTION FUNCTIONT + LIMITS NO. NO.+ SLF Control Resistor (Rg_F) 7.5 kQ Min 20 0.64 - SLF frequency (Hz) = -_ 1 SLF Control Capacitor (Cs_F) See Note 2 21 Rs_F CSLe VCO Setect 10 V Max 22 H = internal contro! (SLF) = external control (pin 16) 0.64 VCO Control Resistor (Ryco} 7.5 kQ Min 18 Min. VCO frequency (Hz) = Rvco * Cvco VCO Control Capacitor (Cyco) See Note 2 17 Max. VCO freq. = 10 X Min. VCO freq. 3 External VCO Control OVtI0 2.5 V 16 Increase in voltage decreases VCO frequency voltage at pin 19 Pitch Control 5 V Max 19 VCO duty cycle = 50 X oo % voltage at pin 16 47 kQ Nom, 47 kQ enables internal noise clock, high logic Noise Clock Control : 4 . 100 k Max level enables external noise clock input (pin 3) 3 External Noise Clock 10 V Max 3 Enabled by a high logic level at pin 4 Noise Filter Control Resistor (Rye) 7.5 kQ Min 5 1.28 ; - - 3 dB frequency (Hz) = --_- 4 Noise Filter Control Capacitor (Cg) | See Note 2 6 Rng: Cne Mixer Sejiect A 10 V Max 26 oo, - Select one or a combination of generator Mixer Select B 10 V Max 25 ; 5 - outputs. See Table 2, Section 5. Mixer Seiect C 10 V Max 27 _. H inhibits sound output, L enabies sound output, System Inhibit 10 V Max 9 . . 6 H-to-L transition triggers one-shot when operable One-Shot Control Resistor (Rgg) 7.5 kQ Min 24 - One-shot duration (seconds) = 0.8 - Ras Cos 7 One-Shot Control Capacitor (Cgs} See Note 2 23 Envelope Select 1 10 V Max 1 Select envelope for sound output fram mixer. 8 Envelope Select 2 10 V Max 28 See Table 3, Section 8. Axctack/Decay Timing . . See Note 2 8 Attack time (seconds) = Ra - Ca/p Capacitor (Ca/p) 9 Attack Control Resistor (Ra) 7.5 kst Min 10 ; - - Decay time (seconds) = Rp Ca/p Decay Control Resistor (Rp) 7.5 kQ Min 7 Amplitude Controi 47 kO Min, 1 Vv 3.4Re hen R Resistor (RG) 220 kQ2 Max out ~ Ra when Re is connected between 1 Feedback Resistor (RF) 12 pin 12 and pin 13. See Note 3. Audio Output 13 Requires pull-down resistor from 2.7 kQ ta 10 kQ 7.5 V Min, 14 Input if unregulated suppiy voltage is used Supply voltage, V (uses internal regulator). Leave open if pPly 9 ce 10 V Max . . . 5-volt requiated power is applied to pin 15. Input for S-volt regulated supply. If "1 4.5 V Min, revue 10-voit supply is applied Supply Voitage, V 16 to pin 14, this becomes the output pery ge, reg 5.5 V Max P for up to 10 mA of 5-volt regulated supply for use outside the chip. Ground 2 Common ground Tan equations are for Vreg =5V,.Ta= 25C. Resistors and capacitors are connected from the pin indicated to ground unless otherwise noted. H = high logic level (> 2 V), L = low logic level (< 0.8 V or open). tParagraph number referred to is in the section of this data sheet entitled Operation. NOTES: 2. For affective operation, the voitage at any capacitor input pin shouid not exceed 4 volts. 3. When this device is used with an external audio amplifier, pin 13 is connected to the input of the external amplifier, and feedback from the external amplifier is connected to pin 12. 778 TEXAS INSTRUMENTS. INCORPORATED POST OFFICE BOX 225012 DALLAS, TEXAS 75265TYPE SN76477 COMPLEX SOUND GENERATOR OPERATION 1. super-low frequency oscillator (SLF) The SLE is normaily operated in the range of 0.1 hertz to 30 hertz, but will operate up to 20 kilohertz. The frequency is determined by two external components, the SLF control resistor (RSE) at pin 20 and the SLF control capacitor (CSL) at pin 21 according to the following equation: 0.64 Equation 1: SLF frequency (Hz) = ____. RSLF * CSLF at Vreq =5V. RSLE should have a minimum vatue of 7.5 k&. The SLF supplies two signals to other parts of the device. It feeds a 50% duty cycle square wave to the mixer, and it feeds a triangular wave to the external VCO or SLF select logic, where, if VCO select (pin 22) is ata high logic level, it is fed through to the VCO to modulate the frequency of that oscillator. 2. voltage-controlled oscillator (VCO) The VCO produces a tone output whose frequency is dependent upon the voltage at the input of the VCO. This controlling voltage may be either the SLF output described above, or an externally generated signal applied to the external VCO control, pin 16. The method of controlling the VCO is selected by the logic level at the VCO select {pin 22). With a low fogic level applied to VCO select, the VCO frequency is controlled by an external signal applied to the external VCO control, pin 16. When a high is applied to the VCO select, the VCO frequency is controlled internally by the triangular waveform signal generated by the super-low-frequency oscillator, and the output of the VCO is a frequency modulated wavetorm as shown in Figure 2 below. SLF RAMP FIGURE 2 The higher the voltage applied to the VCO (either internally from the SLF or externally applied to pin 16), the lower the frequency of the VCO output. An alternate method of applying an external voltage to the VCO input is to do so indirectly by applying the controlling voltage to the SLE oscillator controt capacitor input, pin 21. in some applications this may be more convenient than using the pin 16 input. The minimum frequency of the VCO is determined by the VCO control resistor {Ryco) at pin 18 and the VCO control capacitor (CycQ) at pin 17 according to the following equation: 0.64 Rvco Cvco The frequency range of the VCO is internally determined at an approximate ratio of 10:1, s0 the maximum frequency of the VCO will be approximately ten times the minimum frequency determined by the external components Ryco and CyCo. Equation 2: Minimum VCO frequency (Hz) ~ at Vreg = BV. TEXAS INSTRUMENTS INCORPORATED POST OFFICE SOX 226012 DALLAS, TEXAS 75285YW 778 TYPE SN76477 COMPLEX SOUND GENERATOR OPERATION 2. voltage-controlled oscillator (VCO) (continued) When the external VCO control {pin 16} is used (VCO select, pin 22, is low}, the voltage at the external VCO control should range from 0 to 2.35 volts. If this voltage goes above 2.35 voits, the output of the VCO section saturates at a high logic level and in turn saturates the output amplifier-stage. This may be used as an alternative method of disabling the sound output without changing the system inhibit input. The input at the external VCO control may be a de voltage producing a constant tone, or any digital or analog type input to modulate the frequency of the VCO. The pitch control (pin 19) varies the duty cycle of the VCO output according to the following equation: voltage at pin 19 , Equation 3: VCO duty cycie = 50 X voltage at pin 16 a. By leaving pin 19 high, a constant 50% duty cycle is achieved. The minimum duty cycle attainable is approximately 18%. The specific duty cycle applies to constant tones produced by applying a constant de voltage at the external VCO control, but the pitch contro! may be used to aesthetically alter the pitch of any frequency-modulated VCO output signals. The output of the VCO is a square-wave pulse and is supplied both to the mixer and through the envelope-select logic to the envelope generator and modulator. 3. noise clock The noise clock internally generates clock pulses and supplies them to the noise generator. The noise clock resistor {pin 4) sets the internal operating current for the noise clock section. The nominal value for this resistor is 47 kQ. For faster clock rates, a smaller valued resistor may be used. For slower clock rates, a higher valued resistor may be used, but it should be limited to a maximum of 100 k{2. It may be desirable to use an external noise clock to provide a tower frequency noise or a more precise clock rate. This external clock signal should be applied to the external noise clock terminal (pin 3), and the noise clock resistor input should be taken to a high logic voltage leve?. The external clock signal should be a 10-volt-maximum peak-to-peak square wave. 4. noise generator/filter The noise generator produces psuedo-random white noise that passes through the noise filter before being applied to the mixer. The variable-band-width low-pass filter has its 3-dB rolloff point defined by the noise filter control resistor (RNEF) at pin 5 and the noise filter control capacitor (CNF) according to the following equation: 1.28 RNF * CNF RNE should have a minimum value of 7.5 k&2 in order to limit the current in the noise filter section to a safe operating level. Equation 4: 3-dB frequency (Hz) = at Vreg =5V. TEXAS INSTRUMENTS INCORPORATED POST OFFICE BOX 225012 * OALLAS, TEXAS 75265Fre ONIOC COMPLEX SOUND GENERATOR 5. mixer The mixer logic selects one or a combination of the inputs from the generators and feeds the output to the envelope generator and modulator. The mixer performs a logical AND function on these sounds; therefore, the output of the mixer is not a combination of simultaneous sourids. The output of the mixer is determined by the logic levels at the mixer select inputs as shown in Table 2, below. Figure 3 is an example of how two signals would be combined by the mixer according to the logical AND function with OPERATION TABLE 2 MIXER SELECT INPUTS MIXER c 8 A OUTPUT (PIN 27) (PIN 25) (PIN 26) L L L vco L L H SLF L H L NOISE L H H VCO/NOISE H u L SLF/NOISE H L H SLF/VCO/NOISE H H L SLF/VCO H H H INHIBIT H = high level L = low level or open the mixer select times set for SLF/noise (C input high, A and B inputs tow). , To obtain two sounds occuring simultaneously (e.g., car engine and siren or, steam engine and whistle) multiplexer is required. The multiplexer is an oscillator or frequency generator that can switch the mixer select fines at a rapid rate so that the two sounds seem to occur at the same time. The frequency of the multiplexer should be above the human hearing range of 20 kHz, but not greater than 100 kHz. A multiplexer with a 50% duty cycle would provide SLF OUTPUT NOISE OUTPUT MIXER OUTPUT equal amplitudes for both sound functions. ee JUUUTU UL UU FIGURE 3 The output of the mixer is supplied to the envelope generator and moduiator. ,an external TEXAS INSTRUMENTS INCORPORATED POST OFFICE BOX 225012 DALLAS. TEXAS 75265 ~ Aeee me Wits wTrse F COMPLEX SOUND GENERATOR ~ OPERATION 6. system inhibit The system inhibit togic provides inhibit/seiect contra! for the sound output of the system: a high logic level at the system inhibit terminal (pin 9) inhibits the sound output, a low logic level (ar open) enables it. This input also triggers the one-shot circuit for momentary sounds such as gunshots, bells, or explosions. The one-shot logic is triggered on the negative-going edge of the.system inhibit input. This may be accomplished by means of a momentary switch or by a square-wave input to system inhibit. The system inhibit input must be held low for the entire duration of the one-shot sound including attack and decay periods if the sound is to be completed. Taking the system inhibit input high early terminates the sound. Note that the one-shot is operable only when the proper envelope select logic is selected (see Section 8). 7. one-shot As mentioned in Section 6 above, the one-shot circuit controls momentary sounds, and is triggered by a high-to-low lagic-level transition at the system inhibit input (pin 9). The duratian of the one-shot is determined by the one-shot control resistor (ROS) at pin 24 and the one-shot control capacitor (CQg) at pin 23 according to the following equation: Equation 5: One-shot duration (seconds) ~ 0.8 - Rog - Cos at Vreg = 5V. Maximum duration of the one-shot is approximately 10 seconds. If the one-shot is terminated early by taking the system inhibit input high, the one-shot timing must be allowed to end so that an internal latch will be reset before another one-shot can be triggered. The one-shot may also be controlled by external logic eliminating the need for the ~ one-shot control resistor and capacitor. This is done by triggering the one-shot in the normal way at the system inhibit , input, and terminating it by taking pin 23 (one-shot control capacitor) high. The output of the one-shot is fed through the envelope select logic to the envelope generator and modulator, therefore it is operable only when the one-shot envelope is selected by the envelope select inputs {see Section 8}. The one-shot does not generate sound as such, but provides an envelope for the sound supplied to the envelope generator and modulator by the mixer. 8. envelope select The envelope select logic determines the envelape that is applied to the mixer output according to the following table: TABLE 3 PE CT e = FUNCTION SELECTED WAVEFORM (SEE FIGURE 4) (PIN 1) {PIN 28) L L vco A L H Mixer only B H L One-shot c H H VCO with alternating cycles 0 H = high level L = low level or open 778 TEXAS INSTRUMENTS INCORPORATED POST OFFICE BOX 225012 DALLAS. TEXAS 75265TET & wins were COMPLEX SOUND GENERATOR OPERATION (~* 8. envelope select (continued) if the function selected is mixer only, no envelope is selected and the mixer output is supplied continuously to the audio amplifier. If VCO is selected, the square-wave output of the VCO is the envelope for the mixer output, and the mixer output is gated by the VCO output; that is, the mixer output is passed on to the audio amplifier while the vco output is high and inhibited while the VCO output is low. If one-shot is selected, the output from the mixer is enabled only for the duration of the one-shot pulse. VCO with alternating polarity is similar to the VCO envelope described above except that every other VCO pulse is inverted with the result that only every other output pulse from the vco enables the output from the mixer. Figure 4 shows examples of the four selectable envelopes with noise as the mixer Output. NOISE ; IN vco IN ~ 1 A B ONE-SHOT TIME INTERVAL OE mma ! ! c need cepa SEPA ry FIGURE 4: EXAMPLES OF THE FOUR SELECTABLE ENVELOPES USING NOISE AS MIXER QUTPUT: (Al VCO, (B) MIXER ONLY, (C) ONE-SHOT, (D}) VCO WITH ALTERNATING CYCLES. ~ TEXAS INSTRUMENTS INCORPORATED POST OFFICE 8OX 225012 DALLAS, TEXAS 75265-N of & witsurefs COMPLEX SOUND GENERATOR OPERATION 9. attack and decay control The attack and decay circuitry alters the rise and fall times of the envelope selected by the envelope select logic. The attack/decay timing capacitor (Ca/p) at pin 8 is shared by both the attack and decay circuitry. The attack control resistor (RA) at pin-10 sets an internal current that charges capacitor Ca/p thereby determining the attack {rise} time of the envelope. The decay control resistor (RE) at pin 7 determines the discharge rate of capacitor Ca/p and thus determines the decay (fall) time of the envelope. The actual times may be derived from the following equations: Equation 6: Attack time (seconds) ~ Ra > Ca/p at Vreg =5V. Equation 7: Decay time (seconds) * Ro - Ca/D at Vreg = 5 V. if mixer only or one-shot has been chosen at the envelope select inputs, the attack ramp begins when the system inhibit (pin 9) is taken low. If VCO or VCO with alternating cycles is selected for the envelope, the attack ramps up on each positive edge or every other positive edge, respectively, of the VCO frequency. The decay section ramps the sound amplitude down as the sound ends. The decay has no effect on the mixer-only function, but for the one-shot, the VCO, and the VCO with alternating cycle envelopes, the decay ramp is triggered by each high-to-low transition of the envelope and prolongs the sound at a decaying volume. Figure 5 shows examples of how a waveform may be modified by varying degrees of attack and decay when the mixer output is noise and the one-shot envelope is selected. Figure 6 shows examples of noise with a VCO envelope and attack and/or decay. , eee ALLL our OEY UU ONE-SHOT vco | ENVELOPE ENVELOPE | maT mMm DECAY ATTACK 1 Ws ae ATTACK ' l ONLY / i C SU Ub ATTACK CTA t nb ' oA s I a DECAY DECAY whys if). ! ifs ONLY + ATTACK c~r TAN . La IN. ge DECAY ATTACK AND TD a) ih HAS DECAY Wy | )s 1 FIGURES FIGURE 6 TEXAS INSTRUMENTS INCORPORATED POST OFFICE BOX 225012 @ DALLAS, TEXAS 75265tira wWiesvowrs COMPLEX SOUND GENERATOR OPERATION 10. output amplifier The output amplifier is designed to interface with sound modulators or additional amplifier stages. It requires an external feedback resistor (R=) from pin 12 to pin 13, and an amplitude control resistor (RG) from pin 11 to ground. It is designed as a low-impendance output. The peak output voltage is determined by the following equation: Equation 8: Vour~ Fat Vreg = 5V. R RG Rg should be in the range of 47 kQ to 220 kQ. The dynamic output range is limited to 2.5 volts peak-to-peak before clipping occurs. The output ig an emitter- follower without a load resistor. Therefore pin 13 should have a pull-down resistor with a value ranging from 2.7 kQ to 10 k&. When an external audio amplifier is used with this device, pin 13 is connected to the input of the externai amplifier, and feedback from the external amplifier is connected to pin 12. A typical external amplifier is shown in Figure 7. 11. regulator The circuit will operate from either of two power supplies. A 5-volt regulated supply may be applied to Vreg (pin 15) with Vcc (pin 14) left open. However, an internal 5-volt regulator allows the use of a 7.5-volt to 10-volt unregulated supply applied to Vcc (pin 14) and in addition to supplying power for the chip, the internal regulator will provide a S5-volt regulated supply of up to 10 mA from Vreg (pin 15) for use outside the integrated circuit. TEXAS INSTRUMENTS INCORPORATED POST OFFICE BOX 225012 DALLAS, TEXAS 75265778 .T-,lh/! wserer were FF COMPLEX SOUND GENERATOR TYPICAL APPLICATION DATA 100 kQ 5V av 0.1 pF . RATE CONTROL 4 1 Maz 28 27 26 26 #24 23 22 #21 #20 19 #189 17 16 (15 SN76477 1 2 3 4 5 6 7 8 9 1 7 12 #13 ~14 FIGURE 7STEAM TRAIN/PROP PLANE 5V Rumit ka a7 ko uF. REV RATE oo i 100 22 28 27 26 25 24 23 22 21 20 19 18 17 16 (15 RBhimit SN76477 a 1 2 3 4 6 7 10 1112 13 94 KGL 3.9 kal For two simultaneous race car sounds, the mixer can be multiplexed between the SLF and VCO functions. FIGURE 8RACE CAR MOTOR/CRASH TEXAS INSTRUMENTS INCORPORATED POST OFFICE 8OX 225012 @ DALLAS, TEXAS 75265 "112 Tre ONO COMPLEX SOUND GENERATOR TYPICAL APPLICATION DATA Rate 34 onTROY 3. Sv Tak T" Tuk ie ie 28 #27 26 25 424 23 4 21 | LL 16 18 SN76477 100 2150 Sv kin Pk The one-shot and decay functions could be added to make an ideal phasor gun sound. FIGURE 9-SIREN/SPACE WAR/PHASOR GUN 330 kQ 0,01 uF 5v 5V 28 27 26 28 24 #23 22 21 2 1 1B OF 616 OS SN76477 5V TRIGGER tFor gun shot Rng = 82 kL:, for explosion RAF = 330 ki. 3.9 kQ FIGURE 10GUNSHOT/EXPLOSION TEXAS INSTRUMENTS ENCORPORATED POST OFFICE BOX 225012 @ GALLAS, TEXAS 75265 2N3704PEPE ONO COMPLEX SOUND GENERATOR TYPICAL APPLICATION DATA sv TMn $47 Kn > 3 87 6 NESSS a $ b Lt mnh 4 < .< < BOKRe g 2 330 k2 > 5 180 &2 a 100 kee 7 100 7 3 BV kn? 0.0022 uF yg . . 1 Sv sv tt Lil | t [ 28 27 26 2 24 23 22 2+ 20 19 #18 17 16 18 | 4a 13 420=207~CO1 SN76477 SN74LS90 330 kn PROGRAMMABLE BIRD SOUNDS gv 330 ki 9 > oo = 1 z 3 4 5 6 28 27 26 #25 24 230 22 21 20 18 rT Pa A uF 10k: 19917: 1615 4013: 12:1~100 88 L7__ FLASHLIGHT LocaTeD . a IN GUN BARREL SAME SN76477 SHOWN ABOVE . SN74LS00 - S) eA , TIL78 3302 47 k2 Zz Kit > 3g pi < 0 Hei a QO 2N2222 24 kee 4 oct | | > ADDITIONAL CIRCUITRY FOR SILENCER AND GUN SHOT (FOR USE WITH BIRD SOUNDS ABOVE} 14 FIGURE 13 TEXAS INSTRUMENTS INCORPORATED POST OFFICE BOX 225012 DALLAS. TEXAS 79265 ~~FG & Wiese were COMPLEX SOUND GENERATOR TYPICAL APPLICATION DATA ow < ~~ 0.47 Fm - 28 27) 2625 24 23 22-21 SN76477 For barking dog, the capacitor at pin 17 is changed to 15 pF to increase the frequency of the VCO. FIGURE 118!IRD CHIRP sv 4701: 18 0.05 uF 5V ! 220 0.1L 47 680 :: 1A ks | wu | o? 227 2 28 322 21 wD 19 We OF 6 1S tk: as oe SN76477 i 15 ke a Vn Bu 27k Ae many -__O . c Rioud= 1008 B3k2 st 2N3703 47 ks FIGURE 12MUSICAL ORGAN 773 TEXAS INSTRUMENTS INCORPORATED POST OFFICE BOX 225012 DALLAS, TEXAS 75265fs bh wits Uurig COMPLEX SOUND GENERATOR TYPICAL APPLICATION DATA 5V 47k 100 k2 5V 100 k22 68 ko Ska RATE 0.01 o5 CONTROL uF 4 0.1 Ty hw a | 27 kQ 3 7 6 5 t 27) 260 25 240 230 C2221 | 18 #17 16 = 15 NE5S5 SN76477 MULTIPLEXER 1 th FIGURE 14STEAM TRAIN WITH WHISTLE 7 778 TEXAS INSTRUMENTS 15 INCORPORATED POST OFFICE BOX 225012 DALLAS TEXAS 75265TYPE SN76477 COMPLEX SOUND GENERATOR ORDERING INSTRUCTIONS AND MECHANICAL DATA general The SN76477 is available in the standard dual-in-line plastic package with 0.600-inch (15,24 or in the smailer dual-in-line plastic package with 0.400-inch (10,16-mm} should include the package outline letter{s} at the end of the type num N package ry -mm) centers (outline N), centers {outline NF). Orders for these circuits ber; i.e., SN76477N or SN76477NF. 1,440 (36,6) MAX @ COLO OOO en ee eel L) EITHER INDEX COT TILIt CITITICITCICIL 4 0.011: 0.003 [ean - 0,076) \ 0.018 + 0.003 ~elle- (0,46 t 0,08) PIN SPACING 0.100 (2.54) T.P (See Note a} NF package g 0.600 0.010 115,24 + 0,261 0.020 10,501 MIN: | t 0.200 (5,08) MAX i f SEATING PLANE + Ls \ 0,325 13,17) MEN % +2 0.033 (0,83) MIN le 0.050 + 0.020 (1,27 0.51) ' | ! fe 0.060 11.521 NOM EITHER INDEX _ , o.400-a.010_. r {10,16 - 0.26) . 0.350 - 0.010 | [reas ; 0261 *| 880 (25,15) MAX --m4 SEATING PLANE a= os 200. (5,08) MAX fa 198 0.008 90 a.011: 0.003 (0.203) | | 0.018 + 0.003 wl 279: 0,076} MIN je 0.060 *] 10.487 : oo7e he 0.100 (2.54) MIN (1.52) pin SPACING ja 0.033 (0,84) MIN MAX 9.970 (1,781 TP. (See Note a) a. Each pin centerline is | NOTES: b. All linear dimensions are shown in inches (and parenthetically in millimeter TEXAS INSTRUMENTS INCORPORATED 16 POST OFFICE BOX 225012 @ DALLAS TEXAS 78265 located within 0.010 inch (0.26 millimeters) of its true longitudinal! position, s for reference only). Inch dimensions govern, stg . : 2 te ft 1 = Th carmot egseme ery cesmonibity foe any corcurts shown or pprecent thot they ave free from potent -afe agement TEXAS INSTRUMENTS RESERVES THE RIGHT 0 MAKE CHANGES AT ANY TM IN ORDER TO IMPROVE DESIGN AND TO SUPPLY THE BEST PRODUCT POSSIBLwv /7 Lal WIVWIHIS WILSAS " LN GWdO19AR0 GQNNOS LLv9LNS WL _ Me eolt |- Ne wenn wrease Recto Jeatengeeesisteen Se NM ApsES | 7 nos as pes] SBS oe Se ee = L uae | an lho Sp ORS 1 wing Eamatgaeteaes | 4 -- or boLene og Tr a "1 [4] | 0 eine aoa HL ak (peteertg re ee @ anne ba 5-oee Rag Spears wre dv? 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