NXP Semiconductors TEA1094AT
The TEA1094 and TEA1094A are bipolar circuits intended for use in mains, battery or line-powered telephone sets, cordless telephones, answering machines and Fax machines. They incorporate a microphone amplifier, a loudspeaker amplifier and a duplex controller with signal and noise monitors on both channels.| Part No. | TEA1094AT |
|---|---|
| Datasheet | TEA1094AT Download |
| Manufacturer |  NXP Semiconductors |
| Description | Hands-free |
| Buy | Stock & Price |
FEATURES
● Low power consumption● Power-down function (TEA1094A only)
● Microphone channel with: – externally adjustable gain – microphone mute function.
● Loudspeaker channel with: – externally adjustable gain – dynamic limiter to prevent distortion – rail-to-rail output stage for single-ended load drive – logarithmic volume control via linear potentiometer – loudspeaker mute function.
● Duplex controller consisting of: – signal envelope and noise envelope monitors for both channels with: externally adjustable sensitivity externally adjustable signal envelope time constant externally adjustable noise envelope time constant – decision logic with: externally adjustable switch-over timing externally adjustable idle mode timing externally adjustable dial tone detector in receive channel – voice switch control with: adjustable switching range constant sum of gain during switching constant sum of gain at different volume settings. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TEA1094 TEA10...
