900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf






Zarlink

Le79R79-1DJC Datasheet Preview

Le79R79-1DJC Datasheet

Ringing Subscriber Line Interface Circuit

No Preview Available !

Le79R79
Ringing Subscriber Line Interface Circuit
VE580 Series
APPLICATIONS
„ Ideal for short-loop applications
„ Ideal for ISDN-TA and fixed radio access applications
„ Integrated Access Devices (IADs)
„ Network Interface Units (NIUs)
„ Cable Modems
„ DSL Modems
„ Set Top / House Side Boxes
„ Intelligent PBX
„ Pain Gain
„ FXS Cards
„ Voice over ISDN or T1/E1
„ Smart Residential Gateways
„ WLL, APON, FITL, NGN, and all other short-loop CPE/
Enterprise telephony applications
FEATURES
„ Through trapezoidal ringing
„ On-chip ring-trip detector
„ Low standby state power
„ Battery operation:
— VBAT1: –40.5 to –75 V
— VBAT2: –19 V to VBAT1
„ On-chip battery switching and feed selection
„ On-hook transmission
„ Two-wire impedance set by single external impedance
„ Programmable constant-current feed
„ Programmable Open Circuit voltage
„ Programmable loop-detect threshold
„ Current gain = 1000
„ Ground-key detector
„ Polarity reversal option available
„ Internal VEE regulator (no external –5 V power supply
required)
RELATED LITERATURE
„ 080917 Ve790 Series RSLIC Device Product Brief
„ 080158 Le79R70/79/100/101 Technical Overview
„ 080914 Le79R79 RSLIC Device User’s Guide
„ 080810 Le71HR0021 Reference Design User’s Guide
„ 080255 Le71HE0040J Evaluation Board User’s Guide
„ 080458 Le79R100/101 v. Le79R79 Comparison Brief
„ 080753 Le58QL02/021/031 QLSLAC™ Data Sheet
ORDERING INFORMATION
Device1
Le79R79-1DJC
Le79R79-2DJC
Le79R79-3DJC
Le79R79-1FQC
Le79R79-2FQC
Package Type2, 3 Packing4
32-pin PLCC
(Green package)
Tube
32-pin QFN
(Green package)
Tray
-1: 52 dB Longitudinal Balance, Polarity Reversal
-2: 63 dB Longitudinal Balance, Polarity Reversal
-3: 52 dB Longitudinal Balance, No Polarity Reversal
1. Zarlink reserves the right to fulfill all orders for this device with
parts marked with the "Am" part number prefix until all inventory
bearing this mark has been depleted. Note that parts marked with
either the "Am" or the "Le" part number prefix are equivalent
devices in terms of form, fit, and function—the prefix appearing on
the topside mark is the only difference.
2. Due to size constraints, QFN devices are marked by omitting the
“Le” prefix and the performance grade dash character. For
example, Le79R79-1FQC is marked 79R791FQC.
3. The green package meets RoHS Directive 2002/95/EC of the
European Council to minimize the environmental impact of
electrical equipment.
4. For delivery using a tape and reel packing system, add a "T" suffix
to the OPN (Ordering Part Number) when placing an order.
DESCRIPTION
The Le79R79 Ringing SLIC device is a bipolar monolithic SLIC
that offers on-chip ringing. Designers can achieve significant
cost reductions at the system level for short-loop applications
by integrating the ringing function on chip. Examples of such
applications would be ISDN terminal adaptors, fiber-in-the-
loop, radio-in-the-loop, hybrid fiber/coax and video telephony
(home-side) boxes. The Le79R79 Ringing SLIC device can
provide sufficient voltage to meet the stringent LSSGR five-
ringer equivalent specification. Using a CMOS-compatible
input waveform and wave shaping R-C network, the Le79R79
Ringing SLIC device can provide trapezoidal wave ringing to
meet various design requirements.
See the Le79R79 Block Diagram, on page 4.
Document ID#: 080152 Date: Sep 19, 2007
Rev:
O Version: 2
Distribution: Public Document




Zarlink

Le79R79-1DJC Datasheet Preview

Le79R79-1DJC Datasheet

Ringing Subscriber Line Interface Circuit

No Preview Available !

Le79R79
Data Sheet
TABLE OF CONTENTS
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Related Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Operating Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Transmission Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Longitudinal Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Idle Channel Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Insertion Loss and Four-to-Four-Wire Balance Return Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Line Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Power Supply Rejection Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Supply Currents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Logic Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Logic Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Ring-Trip Detector Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Ring Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Ground-Key Detector Thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Loop Detector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Relay Driver Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Relay Driver Schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
SLIC Device Decoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
User-Programmable Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
DC Feed Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Ring-Trip Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Test Circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Le79R79 Test Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Application Circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Physical Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
32-pin PLCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
32-pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision B to C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision C to D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision D to E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision E to F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision F to G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision G to H . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision H to I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision I to J1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision J1 to K1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision K1 to L1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision L1 to M1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Revision M1 to N1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
2
Zarlink Semiconductor Inc.


Part Number Le79R79-1DJC
Description Ringing Subscriber Line Interface Circuit
Maker Zarlink
Total Page 26 Pages
PDF Download

Le79R79-1DJC Datasheet PDF

View PDF for Mobile








Similar Datasheet

1 Le79R79-1DJC Ringing Subscriber Line Interface Circuit
Zarlink





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy