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DS2186

Dallas Semiconducotr
Part Number DS2186
Manufacturer Dallas Semiconducotr
Description Transmit Line Interface
Published Mar 30, 2005
Detailed Description DS2186 DS2186 Transmit Line Interface FEATURES PIN ASSIGNMENT TAIS ZCSEN TCLKSEL LEN0 LEN1 LEN2 VDD TTIP TRING VSS 1 ...
Datasheet PDF File DS2186 PDF File

DS2186
DS2186

Overview
DS2186 DS2186 Transmit Line Interface FEATURES PIN ASSIGNMENT TAIS ZCSEN TCLKSEL LEN0 LEN1 LEN2 VDD TTIP TRING VSS 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 LCLK LPOS LNEG TCLK TPOS TNEG LB MTIP MRING LF • Line interface for T1 (1.
544 MHz) and CEPT (2.
048 MHz) primary rate networks • On–chip transmit LBO (line build out) and line drivers eliminate external components • Programmable output pulse shape supports short– and long–loop applications • Supports bipolar and unipolar input data formats • Transparent B8ZS and HDB3 zero code suppression modes • Compatible with DS2180A T1 and DS2181A CEPT Transceivers DS2141A T1 and DS2143 E1 Controllers 20–PIN DIP (300 MIL) • Companion to the DS2187 Receive Line Interface and DS2188 T1/CEPT Jitter Attenuator TAIS ZCSEN TCLKSEL LEN0 LEN1 LEN2 VDD TTIP TRING VSS 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 LCLK LPOS LNEG TCLK TPOS TNEG LB MTIP MRING LF • Single 5V supply; low–power CMOS technology 20–PIN SOIC (300 Mil) DESCRIPTION The DS2186 T1/CEPT Transmit Line Interface Chip interfaces user equipment to North American (T1–1.
544 MHz) and European (CEPT–2.
048 MHz) primary rate communications networks.
The device is compatible with all types of twisted pair and coax cable found in such networks.
Key on–chip components include: programmable wave shaping circuitry, line drivers, remote loopback, and zero suppression logic.
A line–coupling transformer is the only external component required.
Short loop (DSX–1, 0 to 655 feet) and long loop (CSU; 0 dB, –7.
5 dB and –15 dB) pulse templates found in T1 applications are supported.
Appropriate CCITT recommendations are met in the CEPT mode.
Application areas include DACS, CSU, CPE, channel banks, and PABX–to–computer interfaces such as DMI and CPI.
The DS2186 supports ISDN–PRI (Primary Rate Interface) specifications.
022798 1/11 DS2186 DS2186 BLOCK DIAGRAM Figure 1 VSS LNEG LPOS LCLK TNEG TPOS TCLK LB ZCSEN TAIS TCLKSEL LEN0 LEN1 LEN2 MTIP LINE DRIVER M...


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