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Part Number
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PBL38814 |
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Manufacturer
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Ericsson |
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Description
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Voice - switched 2-channel Circuit with loudspeaker amplifier |
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Published
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Mar 22, 2005 |
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Detailed Description
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PRELIMINARY
May 1998
PBL 388 14 Voice - switched 2-channel Circuit with loudspeaker amplifier
Description.
The PBL 388...
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Datasheet
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PBL38814
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Overview
PRELIMINARY
May 1998
PBL 388 14 Voice - switched 2-channel Circuit with loudspeaker amplifier
Description.
The PBL 388 14 contains all the necessary circuitry, amplifiers, detectors, comparator and control functions to implement a high performance voice switched handsfree two- way communication system.
The gain dynamics (attenuation between channels) is selectable (25dB or 50dB) via a separate pin.
A background noise detector in the transmitting channel reduces the influence of continuous external noise signals to the switching .
The PBL 388 14 is designed for mains powered handsfree telephones, vehicular mobile telephone handsfree systems and handsfree intercom systems.
Automatic volume a...
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