le79231 Zarlink Semiconductor, le79231 Datasheet - Page 23

• Manufacturer Part Number: le79231
• Description: Intelligent Subscriber Line Interface Circuit
• Manufacturer: Zarlink Semiconductor

REVISION HISTORY
Revision A to Revision B
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Revision B to Revision C
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Revision C to Revision D
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Revision D to Revision E
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Revision E to F1
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Revision F1 to F2
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Revision A was a condensed version of the data sheet. Revision B contains the full version.
Page 12, Linecard Parts List, Rows CHLbi and CHLdi: switched the numbers in the “Values” column.
Applied new format.
Global change: RTMG1 to RMGLi, and RTMG2 to RMGPi.
Updated Device Internal Block Diagram.
Updated pin description for LD pin.
Modified text in "Electrical Operating Ranges" section.
Modified text in "Environmental Operating Ranges" section.
“Absolute Maximum Rating” for humidity changed from “tbd” to 5% - 95%.
Under "Specifications", Power Dissipation table, changed the Power Supply Current On-Hook Disconnect value from 0.5 to
0.4.
Made changes throughout the DC Specifications table.
Updated “Target Specifications” for rows 10, 12, and 19.
Updated “Transmission Specifications” for rows 5, 6, 7, 8, 10, 12 and 13.
Renamed "Fault Indications" table to "Thermal Shutdown Fault Indications"; modified text.
Modified text in "Operating Modes" section.
Modified Thermal Management Equations for I
Updated Waveforms graphic.
Updated External Ringing Linecard Schematic.
Added QFN package data to “Connection Diagram,” “Absolute Maximum Ratings,” and “Physical Dimensions.”
Updated "Am" OPNs (Ordering Part Numbers) to "Le" throughout document
The following changes were made to the "Ordering Information" section:
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In "Features," added bullet for space savings feature
Removed references to DISLAC documents in "Related Literature"
Standardized notes in "Absolute Maximum Ratings" section
In "Thermal Management Equations", IL > 5 mA, deleted the last sentence in the Description section
Updated 32-Pin PLCC physical dimensions graphic
In "Electrical Characteristics", Absolute Maximum Ratings table, added Theta JA data for both packages
Added green package OPN to
Added
Modified external ringing schematic and BOM (removed CSS capacitor)
Updated QFN Physical Dimensions drawing
Enhanced format of package drawings in
Added new headers/footers due to Zarlink purchase of Legerity on August 3, 2007
Removed chip graphic
Added entries for Le79231JC and Le79231QC
Added notes
Package Assembly, on page 10
Ordering Information, on page 1
Physical Dimensions, on page 21
L
Zarlink Semiconductor Inc.
> 5 mA
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