XR-T6420-1 circuit equivalent, speakerphone audio circuit.
Two Matched Variable GaiA Cells Internal Microphone Amplifier Independent Control of Transmitting and Receiving Levels External Control of Gains and Freq
*uency Respon.
Speakerphones Intercoms Voltage Controlled Amplifiers
ABSOLUTE MAXIMUM RATINGSI
Power Supply (VCC - VEE) Power Dissipa.
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