Telecom LIU in a 44-TQFP — what this part is and where it fits
The DS2148T+ is a single-channel Line Interface Unit (LIU) for telecom interfaces. It handles physical-layer encoding, jitter attenuation, and line driving/receiving for digital trunk lines. The 44-TQFP package keeps the board footprint compact for multi-port line cards.
Supply range and current — sizing the rail
The DS2148T+ operates from a 4.75 V to 5.25 V supply. Typical supply current is 95 mA.
Temperature grade — indoor telecom only
Rated for 0°C to 70°C commercial temperature range, this part is intended for controlled indoor environments like equipment rooms, central offices, and climate-controlled cabinets. Not suitable for outdoor, industrial, or automotive applications without additional thermal management.
Lifecycle and compliance — active, no LTB risk
The DS2148T+ is listed as Active with ROHS3 compliance. For new designs and production builds, this part carries no imminent obsolescence risk.
