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MT9171AN Datasheet(PDF) 1 Page - Mitel Networks Corporation |
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MT9171AN Datasheet(HTML) 1 Page - Mitel Networks Corporation |
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1 / 22 page  9-133 9-133 ® Features • Full duplex transmission over a single twisted pair • Selectable 80 or 160 kbit/s line rate • Adaptive echo cancellation • Up to 3km (9171) and 4 km (9172) • ISDN compatible (2B+D) data format • Transparent modem capability • Frame synchronization and clock extraction • MITEL ST-BUS compatible • Low power (typically 50 mW), single 5V supply Applications • Digital subscriber lines • High speed data transmission over twisted wires • Digital PABX line cards and telephone sets • 80 or 160 kbit/s single chip modem Description The MT9171 (DSIC) and MT9172 (DNIC) are multi- function devices capable of providing high speed, full duplex digital transmission up to 160 kbit/s over Figure 1 - Functional Block Diagram DSTi/Di CDSTi/ F0/CLD C4/TCK F0o/RCK MS0 MS1 MS2 RegC DSTo/Do CDSTo/ CDo Transmit Interface Prescrambler Scrambler Control Register Transmit/ Clock Receive Timing & Control Status Transmit Timing Master Clock Phase Locked Sync Detect Receive DPLL Receive Interface De- Prescrambler Descrambler Differentially Encoded Biphase Receiver Differentially Encoded Biphase Transmitter Transmit Filter & Line Driver Receive Filter -1 +2 MUX Address Echo Canceller Error Signal Echo Estimate VBias VDD VSS VBias VRef LOUT LOUT DIS Precan LIN OSC2 OSC1 — + ∑ CDi ISSUE 1 May 1995 a twisted wire pair. They use adaptive echo- cancelling techniques and transfer data in (2B+D) format compatible to the ISDN basic rate. Several modes of operation allow an easy interface to digital telecommunication networks including use as a high speed limited distance modem with data rates up to 160 kbit/s. Both devices function identically but with the DSIC having a shorter maximum loop reach specification. The generic "DNIC" will be used to reference both devices unless otherwise noted. The MT9171/72 is fabricated in Mitel’s ISO2-CMOS process. Ordering Information MT9171AE 22 Pin Plastic DIP MT9172AE 22 Pin Plastic DIP MT9172AC 22 Pin Ceramic DIP MT9171AN 24 Pin SSOP MT9172AN 24 Pin SSOP MT9171AP 28 Pin PLCC MT9172AP 28 Pin PLCC -40°C to +85°C MT9171/72 Digital Subscriber Interface Circuit Digital Network Interface Circuit ISO2-CMOS ST-BUS ™ FAMILY |
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