le79r70 Zarlink Semiconductor, le79r70 Datasheet - Page 21

• Manufacturer Part Number: le79r70
• Description: Ringing Subscriber Line Interface Circuit
• Manufacturer: Zarlink Semiconductor

REVISION HISTORY
Revision A to B
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Revision B to C
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Revision C to D
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To:
Revision D to E
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Revision E to F
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Revision F to G1
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Revision G1 to H1
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Revision H1 to I1
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Revision I1 to J1
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Revision J1 to J2
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R
R
RT1
RT1
Minor changes were made to the data sheet style and format to conform to Legerity standards.
The 28-pin SOIC information and package was added to the Ordering Information and the Connection Dia-
grams sections.
The physical dimensions (PL032 and SOW28) were added to the Physical Dimensions section.
Updated the Pin Description table to correct inconsistencies.
Changed Ring-Trip Components equation from:
In “Ordering Information” section, added description for wafer foundry facility optional character.
Updated device name from “Am79R70” to “Le79R70” throughout document.
Added QFN package to “Connection Diagram,” “Absolute Maximum Ratings,” and “Physical Dimensions.”
Removed reference to PLCC package type in “General Description.”
Ordering Information: Temperature statement updated to standard.
Absolute Maximum Ratings: Notes updated to standard.
Operating Ranges: Temperature statement updated to standard.
Added green package OPNs to
Added
Added "Packing" column and Note 5 to
Updated 32QFN drawing in
Added green package OPNs and removed OPN for SOIC package in
Removed SOIC drawing in
Added note to
Removed the following OPNs from
1QC.
Changed I
Enhanced format of package drawings in
Added new headers/footers due to Zarlink purchase of Legerity on August 3, 2007
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=
300 CF
320 CF
Package Assembly, on page 6
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L
Loop-Current Accuracy from 0.9 to 0.871 in
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Physical Dimensions, on page 19
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Vbat 3.5
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Vbat 5
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–
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–
(
24 µA 320 CF
(
Physical Dimensions, on page 19
15 µA 300 CF
Physical Dimensions, on page 19
Ordering Information, on page 1
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Ordering Information, on page
V
V
BAT1
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BAT1
Ordering Information, on page 1
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Physical Dimensions, on page 19
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R
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Zarlink Semiconductor Inc.
LRT
R
LRT
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150
150
Electrical
21
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2R
2R
F
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F
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1: Le79R70JC, Le79R70-1JC, Le79R70QC, Le79R70-
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Characteristics.
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(
R
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Ordering Information, on page 1
LRT
R
LRT
+
+
150
150
+
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2R
2R
F
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F
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