器件名称: TEA1093
功能描述: Hands-free IC
文件大小: 208.36KB 共28页
简 介:INTEGRATED CIRCUITS
DATA SHEET
TEA1093 Hands-free IC
Product specication Supersedes data of 1995 May 18 File under Integrated Circuits, IC03 1996 Feb 09
Philips Semiconductors
Product specication
Hands-free IC
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. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TEA1093 TEA1093T DIP28 SO28 DESCRIPTION plastic dual in-line package; 28 leads (600 mil) plastic small outline package; 28 leads; body width 7.5 mm GENERAL DESCRIPTION APPLICATIONS Line-powered telephone sets with hands-free/listening-in functions.
TEA1093
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