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Home > Semiconductors > ICs > PHILIPS TEA1095T/C1 IC Voice switched speakerphone

PHILIPS TEA1095T/C1 IC Voice switched speakerphone

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Philips - Philips Tea1095T/C1 IC Speech Network Very Advanced 15.5dB 24-Pin SO

PHILIPS TEA1095T/C1 IC Voice switched speakerphone

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PHILIPS - PHILIPS TEA1095T/C1 Speech Network Very Advanced 15.5dB 24-Pin SO

Product specification Supersedes data of 1996 Mar 22 File under Integrated Circuits, IC03 1997 Nov 25

FEATURES· External power supply with power-down function· Transmit channel with: ­ externally adjustable gain ­ transmit mute function· Receive channel with: ­ externally adjustable gain ­ logarithmic volume control via a linear potentiometer ­ receive 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 TYPE NUMBER TEA1095T TEA1095TS PACKAGE NAME SO24 SSOP24 DESCRIPTION plastic dual in-line package; 24 leads (600 mil) plastic small outline package; 24 leads; body width 7.5 mm plastic shrink small outline package; 24 leads; body width 5.3 mm GENERAL DESCRIPTION APPLICATIONS

· Mains, battery or line-powered telephone sets· Cordless telephones· Answering machines· Fax machines· Hands-free car kits.

The is a bipolar circuit, that in conjunction with a member of the TEA106X, TEA111X families of transmission or TEA1096 transmission/listening-in circuits offers a hands-free function. It incorporates a transmit amplifier, a receiver channel amplifier and a duplex controller with signal and noise monitors on both channels.

QUICK REFERENCE DATA VBB 5 V; VGND = 1 kHz; Tamb = 25 °C; MUTETX = LOW; MUTERX = LOW; PD = LOW; RVOL 0 ; measured in test circuit of Fig.11; unless otherwise specified. SYMBOL VBB IBB Gvtx Gvtxr Gvrx Gvrxr SWRA Tamb PARAMETER supply voltage current consumption from pin VBB voltage gain from TXIN to TXOUT in transmit mode voltage gain adjustment with RGATX voltage gain from RXIN to RXOUT in receive mode voltage gain adjustment with RGARX switching range switching range adjustment operating ambient temperature with RSWR referenced to RSWR 365 k VRXIN 20 mV (RMS); RGARX 16.5 k VTXIN 1 mV (RMS); RGATX 30.1 k CONDITIONS MIN. 2.9 TYP. MAX. UNIT dB °C

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TEA1095T/C1
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