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Status

Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 696kB) Download   E-Mail

Description

The DS2187 T1/CEPT receive line interface chip interfaces user equipment to North American (T1 1.544MHz) and European (CEPT 2.048MHz) primary rate communication networks. The device extracts clock and data from twisted pair or coax transmission media and eliminates expensive discrete components and/or manual tuning required in existing T1 and CEPT line termination electronics. Application areas include DACS, CSU, CPE, channel banks, and PABX-to-computer interfaces such as DMI and CPI.

Key Features

Line interface for T1 (1.544MHz) and CEPT (2.048MHz) primary rate networks Extracts clock and data from twisted pair or coax Meets requirements of PUB 43801, TR 62411, and applicable CCITT G.823 Precision on-chip PLL eliminates external crystal or LC tank—no tuning required Decodes AMI, B8ZS, and HDB3 coded signals Designed for short-loop applications such as terminal equipment to DSX-1 Reports alarm and error events Compatible with the DS2180A T1/ISDN primary rate and DS2181A CEPT Transceivers and DS2141A T1 and DS2143 E1 controllers Companion to the DS2186 T1/CEPT Transmit line interface and DS2188 T1/CEPT jitter attenuator Single 5V supply; low-power CMOS technology

Diagram

Block Diagram

Reliability Reports

Reliability Report: DS2187.pdf

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-5 of 5

DS2187	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2187			Active	PDIP(N);18 pin;192 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P18-6*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS2187+			Active	PDIP(N);18 pin;192 mm² Outline Drawing: 21-0043 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P18+6*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2187S			Active	SOIC(W);20 pin;137.3 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS2187S/T&R			Active	SOIC(W);20 pin;137.3 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20-3*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS2187S+			Active	SOIC(W);20 pin;137.3 mm² Outline Drawing: 21-0042 (PDF) Land Pattern: 90-0108 (PDF) Use pkgcode/variation: W20+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis

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