Key facts
- Brand
- Maxim
- Model
- DS21448
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-03
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Maxim DS21448 3.3V E1/T1/J1 Quad Line Interface Datasheet
The DS21448 is a quad-port E1 or T1 line interface unit (LIU) designed for short-haul and long-haul applications. It incorporates four independent transmitters and four independent receivers in a single 144-pin PBGA or 128-pin LQFP package. The device supports both E1 and T1 line build-outs and includes features such as internal software-selectable receive-side termination and a crystal-less jitter attenuator.
Read onlineMaxim DS21448 specifications
| Voltage | 3.3V |
|---|---|
| Package | 144-pin PBGA or 128-pin LQFP |
| Power Supply | 3.3V |
| Clock Frequency | 2.048MHz or 1.544MHz |
| Interface | 8-bit Parallel or Serial |
Source: Maxim DS21448 3.3V E1/T1/J1 Quad Line Interface Datasheet
All Maxim DS21448 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What line interfaces does the DS21448 support?
The DS21448 supports E1, T1, or J1 line interfaces.
From: Maxim DS21448 3.3V E1/T1/J1 Quad Line Interface Datasheet
Does the device include a jitter attenuator?
Yes, it has an on-board crystal-less jitter attenuator.
From: Maxim DS21448 3.3V E1/T1/J1 Quad Line Interface Datasheet
What supply voltage does the DS21448 require?
The device operates from a 3.3 V supply.
From: Maxim DS21448 3.3V E1/T1/J1 Quad Line Interface Manual
Which package options are available for the DS21448?
It is offered in a 144‑pin PBGA or a 128‑pin LQFP package.
From: Maxim DS21448 3.3V E1/T1/J1 Quad Line Interface Manual