DS2188

T1/CEPT Jitter Attenuator

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Status Explanations for product status codes

Part Number Status Replacement Explanation
DS2188 This product is Not Recommended for New Designs. See Ordering Information for recommended replacements.DS26303
 
Please upgrade to the DS26303 for newer technology, smaller package, lower cost, and lower power consumption. 

Description

The DS2188 T1/CEPT jitter attenuator chip contains a 128 x 2-bit buffer that, in conjunction with an external 4X crystal, is used to attenuate the incoming jitter present in clock and data. The device meets all of the latest applicable specifications including those outlined in TR62411 (Accunet T1.5 Service Description and Interface Specifications, December 1990), TR-TSY-000170 (Digital Cross-Connect System Requirements and Objectives, November 1985), and the CCITT recommendations G.735 and G.742. The DS2188 is compatible with the DS2180A T1/ISDN primary rate transceiver and DS2181A CEPT transceiver, and is the companion to the DS2187 T1/CEPT receive line interface and DS2186 T1/CEPT transmit line interface. It can also be used in conjunction with the DS2190 T1 network interface unit.

Data Sheet

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Key Features

  • Attenuates clock and data jitter present in T1 or CEPT lines
  • Meets the jitter attenuation templates outlined in TR62411, TR-TSY-000170, G.735, and G.742
  • Only one external component required; either a 6.176MHz (T1) or 8.192MHz (CEPT) crystal
  • Selectable buffer size of 128 bits or 32 bits
  • Jitter attenuation is easily disabled
  • Single +5V supply; low-power CMOS technology
  • Available in 16-pin DIP and 16-pin SO (DS2188S)
  • Companion to the DS2186 transmit line and DS2187 receive line interface
   
   

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Rev 1; 2000-10-06
This page last modified: 2007-06-21