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SL1062AN

Low Voltage Transmission Circuit with Dialler Interface

System Logic Semiconductor 

SL1062A

The diode bridge, the Zener diode and R10 limit the current into, and the voltage across, the circuit during line

transients.

A different protaction arrangement is required for pulse dialling or register recall.

The DC line voltage can be set to a higher value by the resistor RVA (REG to SLPE).

Figure 5. Typical application of SL1062A, with piezo-electric earpiece and DTMF dialling.

SLS

System Logic

Semiconductor

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