Order this document by MC34017/D Bipolar • • • • • • • TELEPHONE TONE RINGER Linear/I2L BIPOLAR LINEAR/I2L Complete Telephone Bell Replacement Circuit with Minimum External Components On–Chip Diode Bridge and Transient Protection SEMICONDUCTOR TECHNICAL DATA Direct Drive for Piezoelectric Transducers Push Pull Output Stage for Greater Output Power Capability Base Frequency Options – MC34017–1: 1.0 kHz – MC34017–2: 2.0 kHz – MC34017–3: 500 Hz Input Impedance Signature Meets Bell and EIA Standards 8 1 Rejects Rotary Dial Transients D SUFFIX PLASTIC PACKAGE CASE 751 8 1 P SUFFIX PLASTIC PACKAGE CASE 626 Typical Application 160 k C 5.0 µF 25 V 15 k 2.2 µF 3.0 V 8 7 6 5 AC2 RG RC RS PIN CONNECTIONS AC1 1 8 AC2 RO1 2 7 RO2 3 6 RC RI 4 5 RS Ring MC34017–X RG 1.0 µF Tip 6.8 k AC1 RO1 RO2 RI 1 2 3 4 (Top View) ORDERING INFORMATION MC34017–1: C = 1000 pF MC34017–2: C = 500 pF MC34017–3: C = 2000 pF Piezo Sound Element This device contains 97 active transistors and 79 gates. Device MC34017D MC34017P Operating Temperature Range TA = –20° to +60°C Package SOIC Plastic DIP Motorola, Inc. 1996 MOTOROLA ANALOG IC DEVICE DATA 1 MC34017 MAXIMUM RATINGS (Voltages Referenced to RG, Pin 7) Rating Symbol Value Unit – 20 mA, RMS Vin ±300 mA, peak Voltage Applied at RC (Pin 6) VRC 5.0 V Voltage Applied at RS (Pin 5) VRS 5.0 V Voltage Applied to Outputs (Pins 2, 3) VO –2.0 to VRI V Power Dissipation (@ 25°C) PD 1.0 W Operating Ambient Temperature TA –20 to +60 °C Tstg –65 to +150 °C Operating AC Input Current (Pins 1, 8) Transient Input Current (Pins 1, 8) (T<2.0 ms) Storage Temperature NOTE: ESD data available upon request. ELECTRICAL CHARACTERISTICS (TA = 25°C) Characteristic Ringing Start Voltage VStart = VI at Ring Start VI > 0 VI < 0 Test Symbol Min Typ Max Unit Vdc 1a 1b VStart (+) VStart (–) Ringing Stop Voltage VStop = VI at Ring Stop MC34017–1 MC34017–2 MC34017–3 1c VStop Output Frequencies (VI = 50 V) MC34017–1 High Tone MC34017–1 Low Tone MC34017–1 Warble Tone MC34017–2 High Tone MC34017–1 Low Tone MC34017–1 Warble Tone MC34017–3 High Tone MC34017–1 Low Tone MC34017–1 Warble Tone 1d Output Voltage (VI = 50 V) 34 –34 37.5 –37.5 41 –41 Vdc 14 12 14 16 14 16 22 20 22 fH fL fW fH fL fW fH fL fW 937 752 11.5 1874 1504 11.5 937 752 23 1010 808 12.5 2020 1616 12.5 1010 808 25 1083 868 14 2166 1736 14 1083 868 28 6 VO 34 37 43 Vpp Output Short–Circuit Current 2 IRO1, IRO2 35 60 80 mApp Input Diode Voltage (II = 5.0 mA) 3 VD 5.4 6.2 6.8 Vdc Input Voltage – SCR “Off” (II = 30 mA) 4a Voff 30 38 43 Vdc Input Voltage – SCR “On” (II = 100 mA) 4b Von 3.2 4.1 6.0 Vdc RS Clamp Voltage (VI = 50 V) 5 Vclamp 1.3 1.5 1.8 Vdc Hz PIN FUNCTION DESCRIPTION Pin Symbol 1, 8 AC1, AC2 The input terminals to the full–wave diode bridge. The ac ringing signal from the telephone line energizes the ringer through this bridge. 5 RS The input of the threshold comparator to which diode bridge current is mirrored and sensed through an external resistor (R3). Nominal threshold is 1.2 V. This pin internally clamps at 1.5 V. 4 RI The positive supply terminal for the oscillator, frequency divider and output buffer circuits. RO1, RO2 The tone ringer output terminals through which the sound element is driven. 7 RG The negative terminal of the diode bridge and the negative supply terminal of the tone generating circuitry. 6 RC The oscillator terminal for the external resistor and capacitor which control the tone ringer frequencies (R2, C2). 2, 3 2 Description MOTOROLA ANALOG IC DEVICE DATA MC34017 APPLICATION CIRCUIT PERFORMANCE (Refer to Typical Application) Characteristic Typical Value Output Tone Frequencies MC34017–1 MC34017–2 MC34017–3 Warble Frequencies Units Hz 808/1010 1616/2020 404/505 12.5 Output Voltage (VI ≥ 60 Vrms, 20 Hz) 37 Vpp Output Duty Cycle 50 % Ringing Start Input Voltage (20 Hz) 36 Vrms Ringing Stop Input Voltage (20 Hz) 21 Vrms Maximum AC Input Voltage (≤ 68 Hz) 150 Vrms Impedance When Ringing VI = 40 Vrms, 15 Hz VI = 130 Vrms, 23 Hz >16 12 Impedance When Not Ringing VI = 10 Vrms, 24 Hz VI = 2.5 Vrms, 24 Hz VI = 10 Vrms, 5.0 Hz VI = 3.0 Vrms, 200 – 3200 Hz 28 >1.0 55 >200 kΩ MΩ kΩ kΩ Maximum Transient Input Voltage (T ≤ 2.0 ms) 1500 V 0.5 0.9 – – kΩ Ringer Equivalence: Class A Ringer Equivalence: Class B Block Diagram C4 RI 4 R1 C1 Tip AC1 Diode Bridge 1 Input Current Mirror AC2 Ring 8 SCR Transient Clamp 22 V Bias Push Pull Output Buffer Oscillator RC C2 6 R2 Tone Frequency Divider B B Piezo Sound Element RS 5 Ref Threshold Comparator Warble Frequency Divider RO1 2 RO2 3 R3 C3 RG 7 MOTOROLA ANALOG IC DEVICE DATA 3 MC34017 CIRCUIT DESCRIPTION The MC34017 Tone Ringer derives its power supply by rectifying the ac ringing signal. It uses this power to activate a tone generator and drive a piezo–ceramic transducer. The tone generation circuitry includes a relaxation oscillator and frequency dividers which produce high and low frequency tones as well as the tone warble frequency. The relaxation oscillator frequency fo is set by resistor R2 and capacitor C2 connected to Pin RC. The oscillator will operate with fo from 1.0 kHz to 10 kHz with the proper choice of external components (see Figure 1). The frequency of the tone ringer output signal at RO1 and RO2 alternates between fo/4 to fo/5. The warble rate at which the frequency changes is fo/320 for the MC34017–1, fo/640 for the MC34017–2 and fo/160 for the MC34017–3. With a 4.0 kHz oscillator frequency, the MC34017–1 produces 800 Hz and 1000 Hz tones with a 12.5 Hz warble rate. The MC34017–2 generates 1600 Hz and 2000 Hz tones with a similar 12.5 Hz warble frequency from an 8.0 kHz oscillator frequency. The MC34017–3 will produce 400 Hz and 500 Hz tones with a 12.5 Hz warble rate from a 2.0 kHz oscillator frequency. The tone ringer output circuit can source or sink 20 mA with an output voltage swing of 37 V peak–to–peak. Volume control is readily implemented by adding a variable resistance in series with the piezo transducer. Input signal detection circuitry activates the tone ringer output when the ac line voltage exceeds programmed threshold level. Resistor R3 determines the ringing signal amplitude at which an output signal at RO1 and RO2 will be generated. The ac ringing signal is rectified by the internal diode bridge. The rectified input signal produces a voltage across R3 which is referenced to RG. The voltage across resistor R3 is filtered by capacitor C3 at the input to the threshold circuit. Figure 1. Oscillator Period (1/fo) versus Oscillator R2 C2 Product When the voltage on capacitor C3 exceeds 1.2 V, the threshold comparator enables the tone ringer output. Line transients produced by pulse dialing telephones do not charge capacitor C3 sufficiently to activate the tone ringer output. Capacitors C1 and C4 and resistor R1 determine the 10 V, 24 Hz signature test impedance. C4 also provides filtering for the output stage power supply to prevent droop in the square wave output signal. Six diodes in series with the rectifying bridge provide the necessary non–linearity for the 2.5 V, 24 Hz signature tests. An internal shunt voltage regulator between the RI and RG terminals provides dc voltage to power the output stage, oscillator and frequency dividers. The dc voltage at RI is limited to approximately 22 V in regulation. To protect the IC from telephone line transients, an SCR is triggered when the regulator current exceeds 50 mA. The SCR diverts current from the shunt regulator and reduces the power dissipation within the IC. EXTERNAL COMPONENTS R1 Line Input Resistor R1 affects the tone ringer input impedance. It also influences ringing threshold voltage and limits current from line transients. (Range: 2.0 to 10 kΩ). C1 Line Input Capacitor C1 ac couples the tone ringer to the telephone line and controls ringer input impedance at low frequencies. (Range: 0.4 to 2.0 µF). R2 Oscillator Resistor (Range: 150 to 300 kΩ). C2 Oscillator Capacitor (Range: 400 to 3000 pF). R3 Input Current Sense Resistor R3 controls the ringing threshold voltage. Increasing R3 decreases the ring–start voltage. (Range: 5.0 to 18 kΩ). C3 Ringing Threshold Filter Capacitor C3 filters the ac voltage across R3 at the input of the ringing threshold comparator. It also provides dialer transient rejection. (Range: 0.5 to 5.0 µF). C4 Ringer Supply Capacitor C4 filters supply voltage for the tone generating circuits. It also provides an ac current path for the 10 Vrms ringer signature impedance. (Range: 1.0 to 10 µF). 1/fo, OSCILLATOR PERIOD (µ s) 800 600 400 150 k ≤ R2 ≤ 300 k 400 pF ≤ C2 ≤ 3000 pF 200 0 0 100 200 300 400 500 R2 C2, OSCILLATOR R2 C2 PRODUCT (µs) (1/fo = 1.45 R2 C2 + 10 µs) 4 MOTOROLA ANALOG IC DEVICE DATA MC34017 Figure 2. Test One 6.8 k* 1 AC1 VI 2 VO AC2 8 RO1 390 Ω RG DUT 3 0.047 µF 4 RC 7 6 MC34017–1: C = 1000 pF* MC34017–2: C = 500 pF* MC34017–3: C = 1000 pF* 160 k* RO2 C RI RS 5 15 k* 0.2 µF 1.0 µF a. Increase VI from +33 V while monitoring VO. VStart (+) equals VI when VO commences switching. S1 (Normally Open) b. Decrease VI from –33 V while monitoring VO. VStart (–) equals VI when VO commences switching. VDD c. Decrease VI from +40 V while monitoring VO. VStop equals VI when VO ceases switching. d. Set VI to +50 V. Close S1. Measure frequencies fH, fL and fW. 0.1 µF 10 k 5.6 k Q1 10 k VDD R 0.01 µF* VDD 200 k 1 16 2 15 3 14 4 IC2 13 5 12 6 11 7 10 8 9 0.01 µF 12 13 IC1 – MC14011B IC2 – MC14538B Q1 – 2N3904 VDD = 12 V *Indicates 1% tolerance (5% otherwise) MOTOROLA ANALOG IC DEVICE DATA 1/4 IC1 11 1/4 IC1 10 9 8 fH fL fW MC34017–1: R = 110 kΩ* MC34017–2: R = 55 kΩ* MC34017–3: R = 110 kΩ* 5 MC34017 Figure 3. Test Two 6.8 k* 50 V 1 IRO1 5.0 V S2 2 3 IRO2 AC1 AC2 RO1 RG RO2 DUT RC 8 7 2.0 k 6 S1 160 k* VRC C 10 V 4 RI RS 5 15 k* 0.2 µF With VRC = 4.0 V, close S1. Switch S2 to Pin 2 and measure current at Pin 2 (IO1). Repeatedly switch VRC between 4.0 V and 0 V until Pin 2 current changes polarity. Measure the opposite polarity current (IO2). Calculate: IRO1 = |IO1| + |IO2|. Switch S2 to Pin 3 and repeat. Calculate: IRO2 = |IO1| + |IO2|. MC34017–1: C = 1000 pF* MC34017–2: C = 500 pF* MC34017–3: C = 1000 pF* *Indicates 1% tolerance (5% otherwise) Figure 4. Test Three 1 VD 5.0 mA 2 AC1 AC2 RO1 RG 390 Ω DUT 3 0.047 µF 4 RC 8 7 Measure voltage at Pin 1. 6 160 k* RO2 R1 C RS 5 15 k* 0.2 µF *Indicates 1% tolerance (5% otherwise) 6 MC34017–1: C = 1000 pF* MC34017–2: C = 500 pF* MC34017–3: C = 1000 pF* MOTOROLA ANALOG IC DEVICE DATA MC34017 Figure 5. Test Four V 1 AC1 2 I1 AC2 8 RO1 RG DUT 3 4 RC 7 6 160 k* RO2 C RS RI 5 15 k* 0.2 µF MC34017–1: C = 1000 pF* MC34017–2: C = 500 pF* MC34017–3: C = 1000 pF* a. Set I1 to 30 mA. Measure voltage at Pin 1 (Voff). b. Set I1 to 100 mA. Measure voltage at Pin 1 (Von). (Each test < 30 ms) *Indicates 1% tolerance (5% otherwise) Figure 6. Test Five 6.8 k* 50 V 1 2 AC1 AC2 RO1 RG DUT 3 4 RC 8 7 6 160 k* RO2 C RI RS 5 15 k* Vclamp MC34017–1: C = 1000 pF* MC34017–2: C = 500 pF* MC34017–3: C = 1000 pF* *Indicates 1% tolerance (5% otherwise) Measure voltage at Pin 5 (Vclamp). Figure 7. Test Six 6.8 k* 1 50 V 2 20 k AC1 AC2 RO1 RG VO DUT 3 RC 8 7 2.0 k 6 160 k* S1 VRC RO2 C 4 RI RS 5 15 k* 0.2 µF MC34017–1: C = 1000 pF* MC34017–2: C = 500 pF* MC34017–3: C = 1000 pF* *Indicates 1% tolerance (5% otherwise) MOTOROLA ANALOG IC DEVICE DATA With VRC = 4.0 V, close S1. Measure dc voltage between Pins 2 and 3 (VO1). Repeatedly switch VRC between 4.0 V and 0 V until Pins 2 and 3 change state. Measure the new voltage between Pins 2 and 3 (VO2). Calculate: VO = |VO1| + |VO2|. 7 MC34017 OUTLINE DIMENSIONS D SUFFIX PLASTIC PACKAGE CASE 751–05 ISSUE N –A– 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. 5 1 P 4X –B– 0.25 (0.010) 4 M B M G R C –T– 8X K D 0.25 (0.010) M 8 T B SEATING PLANE S A X 45 _ M_ F J S 4 F –A– L C J –T– N SEATING PLANE D H INCHES MIN MAX 0.189 0.196 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.007 0.009 0.004 0.009 0_ 7_ 0.229 0.244 0.010 0.019 NOTES: 1. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 2. PACKAGE CONTOUR OPTIONAL (ROUND OR SQUARE CORNERS). 3. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. –B– NOTE 2 MILLIMETERS MIN MAX 4.80 5.00 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.18 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 P SUFFIX PLASTIC PACKAGE CASE 626–05 ISSUE K 5 1 DIM A B C D F G J K M P R M K DIM A B C D F G H J K L M N MILLIMETERS MIN MAX 9.40 10.16 6.10 6.60 3.94 4.45 0.38 0.51 1.02 1.78 2.54 BSC 0.76 1.27 0.20 0.30 2.92 3.43 7.62 BSC ––– 10_ 0.76 1.01 INCHES MIN MAX 0.370 0.400 0.240 0.260 0.155 0.175 0.015 0.020 0.040 0.070 0.100 BSC 0.030 0.050 0.008 0.012 0.115 0.135 0.300 BSC ––– 10_ 0.030 0.040 G 0.13 (0.005) M T A M B M Motorola reserves the right to make changes without further notice to any products herein. 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