DS3170N+T&R

Telecom Overview

The DS3170N+T&R is a single-chip transceiver for DS3 and E3 physical copper lines, integrating a Line Interface Unit (LIU) and a framer. It operates within an industrial temperature range of -40°C to +85°C and utilizes a 100-pin CSBGA package measuring 11mm x 11mm with a 1mm height. The device supports 3.3V operation at 0.5W power consumption with 5V tolerant I/O. It interfaces via an 8-/16-bit parallel bus or a slave SPI serial interface operating up to 10Mbps. The integrated clock rate adapter generates required internal frequencies from reference sources including 44.736MHz, 34.368MHz, 77.76MHz, 51.84MHz, or 19.44MHz.

Telecom Feature Summary

• Integrates a DS3/E3 LIU and on-chip framer supporting M23, C-Bit, G.751, and G.832 standards.
• Includes a built-in HDLC controller with a 256-byte FIFO for overhead insertion and extraction.
• Features an on-chip BERT for PRBS generation, detection, and analysis.
• Provides flexible loopback capabilities including line, diagnostic, framer, payload, and analog modes.

Telecom Applications

• Access Concentrators
• Multiservice Access Platforms (MSAPs)
• SONET/SDH ADMs and MSPPs
• PBXs and Test Equipment

Telecom Procurement Notes

Verify the specific revision level against the manufacturer's errata sheet before finalizing designs, as multiple revisions may be available simultaneously through various sales channels. Confirm that the tape and reel packaging matches the intended automated assembly requirements. Ensure the component meets lead-free and RoHS compliance specifications indicated by the plus suffix in the part number.

Telecom Selection Notes

Select this component when a combined framer and transceiver solution is required for DS3 or E3 applications. Verify compatibility with the system's clock reference options, as the device accepts various input frequencies. Ensure the host processor supports either the 8/16-bit parallel interface or the slave SPI mode for configuration and control operations.

Telecom Part Context

This component belongs to the DS317x product family, which includes software-compatible devices such as the DS3171 through DS3174. These parts share similar functional architectures but may differ in specific interface configurations or feature sets. The DS3170 specifically targets applications requiring integrated framing and transmission capabilities for standard digital carrier signals.

Telecom Replacement Considerations

The DS3170 is software compatible with the DS3171, DS3172, DS3173, and DS3174 SCT product family members. Verify pinout and register mapping differences if substituting between these specific family members to ensure seamless integration without hardware modifications.