Key facts
- Brand
- Maxim
- Model
- DS2149
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-07-03
Start here
MAXIM DS2149 5V T1/J1 Line Interface Unit Manual
The DS2149 is a fully integrated line interface unit (LIU) for short‑haul and long‑haul T1/J1 applications. It supports both long‑haul and short‑haul line build‑outs, includes a crystal‑less jitter attenuator, and can be controlled via a serial interface or hardware pins.
This manual covers the device’s detailed description, operating modes, register definitions, transmitter and receiver functions, jitter attenuation, hardware and software modes, diagnostic features, network interface, DC characteristics, and package information. It also provides pin‑out diagrams, timing specifications, and configuration tables.
Maxim DS2149 specifications
| Extended Operating Temperature Range | -40°C to +85°C |
|---|---|
| Package Type | 28 PLCC |
| Receive Sensitivity | 0dB to -36dB |
All Maxim DS2149 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the usable receive sensitivity range for this device?
The device can operate with a receive sensitivity ranging from 0dB to -36dB.
What line build-out settings are available for short-haul applications?
The unit provides five line build-out settings: 0dB, -7.5dB, -15dB, and -22.5dB.
Does the DS2149 require a crystal?
No, it features a crystal-less jitter attenuator.
What receive sensitivity levels can the device support?
The device supports receive sensitivity adjustments of 0dB, -18dB, -26dB, or -36dB.
What is the receive sensitivity range of the DS2149?
The receive sensitivity can be set from 0 dB down to –36 dB.
What line build‑out options does the DS2149 provide?
It offers four CSU filters ranging from 0 dB to –22.5 dB for line build‑out.