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L6726 Datenblatt(PDF) 1 Page - Unisonic Technologies

Teilenummer L6726
Bauteilbeschribung  UNIVERSAL SPEECH CIRCUIT
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Hersteller  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

L6726 Datenblatt(HTML) 1 Page - Unisonic Technologies

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UNISONIC TECHNOLOGIES CO., LTD
L6726
LINEAR INTEGRATED CIRCUIT
www.unisonic.com.tw
1 of 13
Copyright © 2008 Unisonic Technologies Co., Ltd
QW-R108-015,B
UNIVERSAL SPEECH
CIRCUIT
DESCRIPTION
The UTC L6726 is a mask-programmable, monolithic
integrated speech circuits for using in electronic telephones.
It is designed for using with a low impedance microphone.
Transmitting and receiving gain are regulated with line length.
Different regulation for various current feeds can be set by
external resistors. Typical current feeds as 48V 2·200Ω, 48V,
2·400Ω, and 36V, 2·500Ω, can be handled. Application
dependent parameters such as line balance, side tone level,
amplification and frequency response are set by external
components. Parameters are set independently which means
easy adaptation for various market needs.
The UTC L6726 is developed for using with CMOS-type dialer
ICs. A separate DTMF input is switched when the circuit is
muted, and an adjustable DC supply is provided for feeding an
external CMOS device.
FEATURES
*Minimum number of inexpensive external components, 5
capacitors and 11 resistors.
*Mute function for operation with DTMF-generator.
*Transmit and receive gain regulation for automatic loop loss
compensation.
*Extended current and voltage range 5~130mA, down to 2V.
*Differential microphone input for good balance to ground.
*Balanced receiver output stage.
*Short start-up time.
*Stabilized DC-supply for low current CMOS dialers and/or
electret microphones.
*DTMF-input controlled by mute.
*Pb-free plating product number: L6726L
ORDERING INFORMATION
Ordering Number
Normal
Lead Free
Package
Packing
L6726-D18-T
L6726L-D18-T
DIP-18
Tube
L6726-S18-R
L6726L-S18-R
SOP-18
Tape Reel
L6726-S18-T
L6726L-S18-T
SOP-18
Tube


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