Datenblatt-Suchmaschine für elektronische Bauteile |
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TEA1093T Datenblatt(PDF) 2 Page - NXP Semiconductors |
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TEA1093T Datenblatt(HTML) 2 Page - NXP Semiconductors |
2 / 28 page 1996 Feb 09 2 Philips Semiconductors Product specification Hands-free IC TEA1093 FEATURES • Line powered supply with: – adjustable stabilized supply voltage – power down function • Microphone channel with: – externally adjustable gain – microphone mute function • Loudspeaker channel with: – externally adjustable gain – dynamic limiter to prevent distortion – rail-to-rail output stages for single-ended or bridge-tied 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. APPLICATIONS • Line-powered telephone sets with hands-free/listening-in functions. GENERAL DESCRIPTION The TEA1093 is a bipolar circuit intended for use in line-powered telephone sets. In conjunction with a member of the TEA1060 family or PCA1070 transmission circuits, the device offers a hands-free function for line powered telephone sets. It incorporates a supply, a microphone channel, a loudspeaker channel and a duplex controller with signal and noise monitors on both channels. ORDERING INFORMATION TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TEA1093 DIP28 plastic dual in-line package; 28 leads (600 mil) SOT117-1 TEA1093T SO28 plastic small outline package; 28 leads; body width 7.5 mm SOT136-1 |
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