Description
positive line terminal gain adjustment; transmitting amplifier gain adjustment; transmitting amplifier non-inverting output; receiving amplifier gain adjustment; receiving amplifier inverting microphone input non-inverting microphone input NC negative line terminal receiving amplifier input dual-tone multi-frequency input mute input (see note 1) positive supply decoupling voltage regulator decoupling automatic gain control input slope (DC resistance) adjustment
FM1062/FM1062A Low voltage transm
Features
- Low DC line voltage; operates down to 1.6 V (excluding polarity guard) Voltage regulator with adjustable static resistance Provides a supply for external circuits Symmetrical high-impedance inputs (64KΩ) for dynamic, magnetic or piezoelectric microphones Asymmetrical high-impedance input (32KΩ) for electrets microphones DTMF signal input with confidence tone Mute input for pulse or DTMF dialling.
- FM1062: active HIGH (MUTE).
- FM1062A: active LOW (MUTE) Receiving a.