DS21Q50L+

$60.10

Description：IC TELECOM INTERFACE 100LQFP
Series：-

SKU:a8482bfb2965 Category: Telecom Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

DS21Q50L+ is listed in the Telecom range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC TELECOM INTERFACE 100LQFP. Review the specifications below when checking this part for your BOM.

Telecom specifications for DS21Q50L+

Description：IC TELECOM INTERFACE 100LQFP
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tray
Function：Transceiver
Interface：E1
Number of Circuits：4
Voltage - Supply：3.14V ~ 3.47V
Current - Supply：230mA
Operating Temperature：0°C ~ 70°C
Mounting Type：Surface Mount
Package / Case：100-LQFP
Supplier Device Package：100-LQFP (14x14)
Power (Watts)：-
Grade：-
Qualification：-

Telecom datasheet and documents for DS21Q50L+

DS21Q50L+

Telecom Overview

The DS21Q50L+ is a quad E1 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates four complete E1 (CEPT) PCM-30/ISDN-PRI transceivers within a single package. The device operates on a 3.3V low-power CMOS supply with a voltage range of 3.135V to 3.465V. It supports an operating temperature range of 0°C to +70°C and is housed in a 100-pin, 14mm x 14mm LQFP package. The component handles data rates up to 1.544 Mb/s for T1 or 2.048 Mb/s for E1 protocols, featuring built-in clock/data recovery and jitter attenuation capabilities.

Telecom Feature Summary

Integrates four independent E1 transceivers with on-board clock and data recovery circuitry that converts AMI/HDB3 waveforms to NRZ serial streams.
Includes selectable 32-bit or 128-bit crystal-less jitter attenuators assignable to either transmit or receive data paths.
Supports configurable parallel and serial host interface ports with interleaving PCM bus operation up to 16.384MHz.
Features automatic line build-out adjustment for twisted-pair cables from 0km to over 2km and generates G.703 waveshapes for coax and twisted-pair interfaces.

Telecom Applications

DSLAMs
Routers
IMA and WAN Equipment

Telecom Procurement Notes

Verify the specific suffix 'L' indicates the commercial temperature range (0°C to +70°C), distinct from the 'LN' industrial variant (-40°C to +85°C). Confirm RoHS compliance status as '+'. Check current availability as the product lifecycle may be End-of-Life. Ensure the 100-LQFP footprint matches the design requirements before ordering.

Telecom Selection Notes

Select this component when high-density termination of four E1 lines is required without external logic. The Interleave Bus Option allows multiplexing eight E1 streams onto a single PCM bus. Verify system clock requirements against the internal synthesizer capabilities. Ensure the host interface supports the required parallel or serial modes for register access.

Telecom Part Context

The DS21Q50L+ belongs to the Maxim Integrated DS21Q50 series of telecom interface ICs. It is part of a family designed for E1/T1 line interface units. The 'L' suffix denotes the commercial temperature grade, while 'LN' denotes the extended industrial grade. Both share identical electrical and functional specifications except for the operating temperature range.