Datasheets
DS21448L+ by:

PCM Transceiver, 1-Func, PQFP128, 14 X 20 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-128

Part Details for DS21448L+ by Maxim Integrated Products

Results Overview of DS21448L+ by Maxim Integrated Products

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DS21448L+ Information

DS21448L+ by Maxim Integrated Products is a Digital Transmission Interface.
Digital Transmission Interfaces are under the broader part category of Telecommunication Circuits.

A telecommunications circuit transmits and receives information between points. Key components include transmitters, receivers, amplifiers, and multiplexers. Read more about Telecommunication Circuits on our Telecommunication Circuits part category page.

Price & Stock for DS21448L+

Part # Distributor Description Stock Price Buy
Rochester Electronics 3.3V E1/T1/J1 Quad Line Interface RoHS: Compliant Status: Obsolete Min Qty: 1 64
  • 25 $35.3500
  • 100 $33.5800
  • 500 $31.8200
  • 1,000 $30.0500
  • 10,000 $28.2800
$28.2800 / $35.3500 Buy Now

Part Details for DS21448L+

DS21448L+ CAD Models

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DS21448L+ Part Data Attributes

DS21448L+ Maxim Integrated Products
Buy Now Datasheet
Compare Parts:
DS21448L+ Maxim Integrated Products PCM Transceiver, 1-Func, PQFP128, 14 X 20 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-128
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer MAXIM INTEGRATED PRODUCTS INC
Part Package Code QFP
Package Description 14 X 20 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-128
Pin Count 128
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
JESD-30 Code R-PQFP-G128
JESD-609 Code e3
Length 20 mm
Moisture Sensitivity Level 3
Number of Functions 1
Number of Terminals 128
Operating Temperature-Max 70 °C
Operating Temperature-Min
Package Body Material PLASTIC/EPOXY
Package Code LFQFP
Package Equivalence Code QFP128,.63X.87,20
Package Shape RECTANGULAR
Package Style FLATPACK, LOW PROFILE, FINE PITCH
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
Seated Height-Max 1.6 mm
Supply Current-Max 0.4 mA
Supply Voltage-Nom 3.3 V
Surface Mount YES
Telecom IC Type PCM TRANSCEIVER
Temperature Grade COMMERCIAL
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Pitch 0.5 mm
Terminal Position QUAD
Time@Peak Reflow Temperature-Max (s) 30
Width 14 mm

Alternate Parts for DS21448L+

This table gives cross-reference parts and alternative options found for DS21448L+. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of DS21448L+, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
DS21448L+W Maxim Integrated Products Check for Price PCM Transceiver, 1-Func, PQFP128, 14 X 20 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-128 DS21448L+ vs DS21448L+W
82V2084PFG8 Integrated Device Technology Inc Check for Price PCM Transceiver, 1-Func, PQFP128, TQFP-128 DS21448L+ vs 82V2084PFG8
IDT82V2084PF Integrated Device Technology Inc Check for Price PCM Transceiver, 1-Func, PQFP128, TQFP-128 DS21448L+ vs IDT82V2084PF
DS21448L Maxim Integrated Products Check for Price PCM Transceiver, 1-Func, PQFP128, 14 X 20 MM, 1.40 MM HEIGHT, LQFP-128 DS21448L+ vs DS21448L
82V2084PF Integrated Device Technology Inc Check for Price PCM Transceiver, 1-Func, PQFP128, TQFP-128 DS21448L+ vs 82V2084PF
DS21448LN+ Maxim Integrated Products Check for Price PCM Transceiver, 1-Func, PQFP128, 14 X 20 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-128 DS21448L+ vs DS21448LN+
82V2084PFG8 Renesas Electronics Corporation Check for Price PCM Transceiver, 1-Func, PQFP128 DS21448L+ vs 82V2084PFG8
82V2084PF Renesas Electronics Corporation Check for Price PCM Transceiver, 1-Func, PQFP128 DS21448L+ vs 82V2084PF

DS21448L+ Related Parts

DS21448L+ Frequently Asked Questions (FAQ)

  • The recommended PCB layout for the DS21448L+ involves placing the device near the edge of the board, using a solid ground plane, and minimizing the length of the transmission lines. A 4-layer board with a dedicated ground plane is recommended.

  • To ensure reliable operation in high-temperature environments, ensure that the device is properly heat-sinked, and the thermal pad is connected to a solid ground plane. Also, consider using a thermal interface material to improve heat transfer.

  • The maximum cable length supported by the DS21448L+ depends on the specific application and the type of cable used. However, as a general guideline, the device can support cable lengths up to 100 meters at 100 Mbps and up to 50 meters at 1000 Mbps.

  • To troubleshoot issues with the DS21448L+, start by checking the power supply voltage, ensuring that it is within the recommended range. Then, verify that the device is properly configured and that the transmission lines are properly terminated. Use an oscilloscope to check the signal quality and look for any signs of signal degradation or noise.

  • Yes, the DS21448L+ can be used in a redundant or fault-tolerant system. The device has built-in features such as redundant transmission paths and automatic failover, making it suitable for applications that require high reliability and availability.

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