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CH1840 - Low Profile Data Access Arrangement (DAA) Modules

Datasheet Summary

Description

The operation of the CH1840 can be broken down into the functional blocks shown in Figure 1.

1) Phone line control 2) Billing delay 3) Ring detection 4) Signal Path 5) 2- to 4-wire converter Control inputs and status outputs for the CH1840 are compatible with 5 Volt CMOS.

Features

  • Works with all modem chip sets Available in 0 dB, -6 dB, and -9 dB insertion losses Available in extended temperature operation, -40oC to +85oC Complete DAA function Voice and data FCC Part 68 registered Registration conveyed to user Hook switch control Ring detection Single +5V operation Pulse dial capability.

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Datasheet preview – CH1840

Datasheet Details

Part number CH1840
Manufacturer ETC
File Size 432.58 KB
Description Low Profile Data Access Arrangement (DAA) Modules
Datasheet download datasheet CH1840 Datasheet
Additional preview pages of the CH1840 datasheet.

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Full PDF Text Transcription

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Cermetek microelectronics CH1840 Low Profile Data Access Arrangement (DAA) Modules INTRODUCTION The CH1840 is an ultra small, low profile Data Access Arrangement (DAA). Its modular construction and single +5 Volt D.C. power requirement simplify your development process. Specifically designed for both voice and data, this device allows direct connection of these circuits to the telephone lines. The CH1840 has FCC Part 68 registration that can be transferred to your product. Simply attach the included registration sticker to the outside of your product. This eliminates the costs and delays associated with Part 68 testing and registration. The CH1840 has also been designed to meet the requirements of Canada’s Department of Communication (DOC).
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