IL3726AN Datasheet (IK Semiconductor) - Universal Speech Circuit

IL3726AN, Universal Speech Circuit

PIN CONFIGURATION Pin No Designation Description Positive power line and transmit amplifier output.

Transmit amplifier output.

The resistor which is connected this pin to V - sets the DC resistance of circuit.

The value of resistor is suitable for 47 to 100　.

Transmit amplifier input.

Input impe

TECHNICAL DATA Universal Speech Circuit with Dialler Interface The IL3726AN is a low voltage speech network which includes Mic amp.

transmit amp, receive amp.

and stabilized DC-supply It handles the voice signal performing the 2/4 wire interface and changing the gain on both sending and receiving amplifiers to compensate for line attenuation by sensing the line length through the line current.

Application dependent parameters such as amplitude of each amp, sidetone level, line balance and frequ