TONE DECODER IC. Fig. 1 Views of ICs in DIP & SO packages IL567СN, IL567СD. N-suffix DIP-package. D-suffix SO-package

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Horatio Booth
6 years ago
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1 TONE DECODER IC The CN, CD are general purpose tone decoders. ICs are purposed to receive and decode sine signal of wide bandwidth in telelecom systems. IC can be applied for tone (voice-frequency) decoding, frequency control, broadband FSK demodulations, ultrasonic frequency control, in precision generator, search decoders N-suffix DIP-package Main features Bandwidth, BW, % (relatively to central frequency f C ) min ; max ; Bandwidth central frequency, f C, khz min ; (at U CC = 5 V, R = 2, kω, С = 3300 pf) max...500; (at U CC = 5 V, R = 2, kω, С = 00 pf) Center frequency adjustable from 0,01Hz to 500 khz D-suffix SO-package Fig. 1 Views of ICs in DIP & SO packages Quiescent consumption current, I CC, ma (at U CC = 5 V, R L = 20 kω), not more.. ; Operating temperature range 0 to 70 C; Immunity to ESD potential 200 V. Limiting value of the potential of static electricity 350 V; Logic compatible output with 100mA current sinking capability; High rejection of outband signals and noise; Thermal resistance «junction-ambient» for СN not more 110 o C/W; for СD not more 160 o C/W. Fig. 2 Pinout diagramm 1

2 OF OUT 1 st phase detector LF Generator of threshold voltage U REV Oscilator drived by voltage TC TR IN 2 nd phase detector Fig. 3 Block diagram of IC Table 1 Pin description Pin number Symbol Description 01 OF Filter output 02 LF Loop filter (Low frequency filter of the synchronous demodulator) IN Detected frequency input 0 U CC Supply voltage pin 05 TR Timing resistor connection pin 06 TC Timing capacitor connection pin 07 GND Common pin (Ground) 0 OUT Output 2

3 Table 2 Absolute maximum ratings Symbol Parameter Norm Unit Min Max U CC Supply voltage - 9,5 V U Input voltage (pin ) -10 U CC 0,5 V 1) P tot Total power dissipation ) mw Та Storage temperature o C 1) At IC operation junction temperature has not to excess 115 o C taking into account thermal resistance "junction-ambient". For СN thermal resistance "junction-ambient" o C/W. For СD thermal resistance "junction-ambient" o C/W. Maximum power P tot,w, dissipated by IC for T A, is calculated by formula P tot = (115 - T A ) / R TJA, (1) 115 maximum permissible operating junction temperature, С; Т А ambient temperature, С; R TJA thermal resistance «junction-ambient», o C/W. 2) Duration of influence of extreme mode has to be not more than 20 ms Table 3 Recommended operation modes Symbol Parameter Norm Unit Min Max U CC Supply voltage,75 9 V U 0 Voltage applied to closed output, V (pin 0) - 15 V Ta Operating ambient temperature 0 70 o C 3

4 Table Electric parameters Parameter, unit, mode of measurement Symbol Norm Min Max Quiescent consumption current, ma at U CC = 5 V, R L = 20 kω I СС - 9 Dinamic consumption current, ma at U CC = 5 V, R L = 20 kω I ОСС Input resistance, kω R I 15 - at U CC = 5 V 1 Smallest detectable input voltage, mv (RMS) at U CC = 5 V, I L = 100 ma, f I = f С U Imin Largest detectable input voltage (at signal U Imax 10 - abcence), mv (RMS) at U CC = 5 V, I L = 100 ma, f I = f С 9 Bandwidth, % (relatively to central frequency f C ) BW Bandwidth relative deviation, % (relatively to central frequency f C ) BW REL - 3,0 3,5 at U CC = 5 V Coefficient of bandwidth variation with supply voltage, % / V К BW - ±5 ±5,5 at U CC = (,75-6,75) V Highest center frequency, khz f C - at U CC = 5 V, R = 2, kω, С = 3300 pf at U CC = 5 V, R = 2, kω, С = 00 pf Center frequency variation with supply voltage, %/V δ fc - 2,0 2,5 at U CC = (,75-6,75) V at U CC = (,75-9,0) V High level output leakage current, µa at U CC = 5 V, U 0 = 15 V I OLH Output saturation voltage, V U OSAT - 0, at U CC = 5; 9 V, I 1) 0 = 30 ma, U = 25 mv 0,6 at U CC = 5; 9 V, I 0 = 100 ma, U = 25 mv - 1,0 1,5 Ambient temperature, o C 25±10 0; 70 1) I 0 0 pin current

5 Table 5 Reference parameters Parameter, unit, mode of measurement Largest Simultaneous Outband Signal to Inband Signal Ratio, db Minimum Input Signal to Wideband Noise Ratio, db at U CC = 5 V, B n =10 khz Cycle repeating frequency, khz at U CC = 5 V Output fall time, ns at U CC = 5 V Output rise time, ns at U CC = 5 V Coefficient of bandwidth variation with temperature, % / o C at U CC = 5 V Coefficient of central frequency variation with temperature, ppm/ С at U CC = (,75-5,75) В Symbol Min N S 1,5 1,0 N n -1,5-1,0 Norm Max Ambient temperature, o C 25±10 0; 70 f CYC - f C /20 f C /25 t f t r α BW - ±0,2 0; 70 α fc ; 70 5

6 Functionality of the microcircuit Tone signals decoder IC is purposed for decoding of frequencies in bandwidth BW (relatively the central frequency), %, determined by expression Ui BW = 1070, (2) f C2 Ui - input voltage (RMS) Ui 200 mv; f C bandwidth central frequency of decoder, khz, is determined by formula 1 f C, (3) 1.1R1C1 R1, C1, C2 - extermal passive components. C U СС R C3 0, C1* 0,03 06 R1 2,K 05 0 C2 0,005 C5 0,01 C 1 µ U I R2 load resistor * for frecuency f С = 100 khz only. Ucc Capacitor С1 used to correct oscillator central frequency. Capacitor С2 used to determine decoder bandwidth. Fig. Recommended application diagram 6

7 f C, khz Reference diagramm U CC =,75 V V Ta, C Fig. 5 Bandwidth central frequency average values versus ambient temperature BW, % U CC =9 V,75 V Ta, C Fig. 6 Bandwidth average values versus ambient temperature 7

8 16 BW, % fcc2= 3,9 10 3,7 10 3, , U I, mv Fig. 7 Bandwidth average values versus input voltage at U CC = 5 V, Та = (25±10) o C BW, % f C, khz Fig. Bandwidth average values versus central frequency at U CC = 5 V, Та = (25±10) o C BW, % от С5 от С fc C 10 3, Hz uf Fig. 9 Bandwidth average values versus capacity at U CC = 5 V, Та = (25±10) o C

9 I CC, I OCC 12, ma 10 I OCC I CC Ucc, V Fig.10 Quiescent consumption current and dynamic consumption current average values versus supply voltage Та = (25±10) o C f CYC, khz T a, C Fig. 11 Cycle repeating frequency average values versus ambient temperature at U CC = 5 V U OSAT 1,0 0,9 0, 0,7 0,6 0,5 0, 0,3 0,2 0,1 0,0, V I 0 =100 ma 30 ma T a, C Fig. 12 Output saturation voltage average values versus ambient temperature at U CC = 5 V 9

10 Typical applications diagrams 0.5 µf 697 Hz R1 R2 R3 1 C1 C3 C µf Hz µf Hz Input signal mv 0.5 µf 91 Hz µf 1209 Hz * 0.5 µf 1336 Hz # 0.5 µf 177 Hz C R1-6, 15 kω R2,7 kω R3-20 kω C1 0,1 μf С2-1,0 μf 6 V С3-2,2 μf 6 V С μf 6 V R1 is selected based on required detecting frequiency Fig.13 - Push-button phone decoder 10

11 R L R L f C f C R1 R L >1000Ohm R1 C1 C2 C1 Output signal is inverted at 2,V voltage applied to pin. Fig. 1 - Oscillator with Quadrature Output Fig Oscillator with Double Frequency Output R L VCO pin ( 6%) R1 C2 C1 Fig Precision oscillator-driver with 100 ma load 11

12 D 5 E1 1 b2 A E A1 C Seating plane e b L c α 0,25 (0,010) M C Note The sizes D, E1 do not include size of the spew which should not be more 0,25 (0,010) on the side. D E1 A b b2 e α L E c A1 mm min max inches min max Fig. 17 DIP-packade (MS-001BA) dimensions 12

13 D 5 E1 H 1 hx5 C A1 c e b Seating plane α L 0,25 (0,010) M C D E1 H b e α A A1 c L h mm min max inches min max Fig. 1 SO- package (MS-012AA) dimensions 13

14 Technological mark coordinates CN (mm): left bottom corner х = 0,6971, у =0,20. Chip thickness 0,35 ± 0,02 mm. Contact pad number Coordinates(left bottom corner), mm Х У 01 0,6397 0, ,6397 0,577 0,6397 0, ,7 0, ,05 0, ,05 0, ,2931 0, ,996 0,05 Note - Contact pad dimensions 0.05 х 0.05 mm and coordinates are indicated under Passivation layer Fig. 19 Contact pad layout and coordinates 1

LM567/LM567C Tone Decoder

LM567/LM567C Tone Decoder General Description The LM567 and LM567C are general purpose tone decoders designed to provide a saturated transistor switch to ground when an input signal is present within the