поискавой системы для электроныых деталей |
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TS31002CS датащи(PDF) 4 Page - Taiwan Semiconductor Company, Ltd |
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TS31002CS датащи(HTML) 4 Page - Taiwan Semiconductor Company, Ltd |
4 / 8 page TS31002 Tong Ringer 4/8 Version: A07 Application Circuit SWITCH POSITION IS THE FOLLOWING TABLE: : PARAMETER SW1 SW2 Vsi , Isi 1 1 Vsus , Isus 1 1 Voh 2 2 Vol 2 3 Figure 3. Test Circuit (2) SWITCH POSITION IS THE FOLLOWING TABLE: PARAMETER SW1 SW2 FL 1 1 fH1 3 2 fH2 2 2 Application Note The application circuit illustrates the use of the TS31002 devices in typical telephone or extension tone ringer application. The AC ringer signal voltage appears across the TIP and RING inputs of the circuit and is attenuated by capacitorC1 and resistor R1. C1 also provides isolation from DC voltages (48V) on the exchange line. After full wave rectification by the bridge diode, the waveform is filtered by capacitor C4 to provide a DC supply for the tone ringer chip. As this voltage exceeds the initiation voltage (VSI), oscillation starts. With the components shown, the output frequency chops between 512(fh1) and 640Hz(fh2) at a 10Hz(fL) rate. The loudspeaker load is coupled through a 1300W to 8W transformer. The output coupling capacitor C5 is required with transformer coupled loads. When driving a piezo-ceramic transducer type load, the coupling C5 and transformer (1300W:8W) are not required. However, a current limiting resistor is required. The low frequency oscillator oscillates at a rate (fL) controlled by an external resistor (R2) and capacitor (C2). The frequency can be determined using the relation fL=1/1.289R2*C2. The high frequency oscillates at a fH1, fH2 controlled by an external resistor (R3) and capacitor (C3). The frequency can be determined using the relation H1=1/1.504R3*C3, fH2=1/1.203R3*C3. R1 = 165 K (+/-) 1% R2 = 191 K (+/-) 1% C1 = 0.47 µF (+/-) 5% C2 = 0.0068 µF (+/-) 5% R1 = 165 K (+/-) 1% R2 = 191 K (+/-) 1% C1 = 0.47 µF (+/-) 5% C2 = 0.0068 µF (+/-) 5% |
Аналогичный номер детали - TS31002CS |
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Аналогичное описание - TS31002CS |
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