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Le79R79-1FQC Dataheets PDF



Part Number Le79R79-1FQC
Manufacturers Zarlink
Logo Zarlink
Description Ringing Subscriber Line Interface Circuit
Datasheet Le79R79-1FQC DatasheetLe79R79-1FQC Datasheet (PDF)

™ 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 ORDERING INFORMAT.

  Le79R79-1FQC   Le79R79-1FQC


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™ 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 ORDERING INFORMATION Device1 Le79R79-1DJC Le79R79-2DJC Le79R79-3DJC Le79R79-1FQC Le79R79-2FQC 32-pin QFN (Green package) Tray Package Type2, 3 32-pin PLCC (Green package) Packing4 Tube -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. 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. The green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment. For delivery using a tape and reel packing system, add a "T" suffix to the OPN (Ordering Part Number) when placing an order. 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) 2. 3. 4. „ „ „ „ „ „ „ „ „ „ 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-theloop, 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 fiveringer 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. 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 Document ID#: 080152 Date: Sep 19, 2007 Rev: O Version: 2 Distribution: Public Document Le79R79 TABLE OF CONTENTS Data Sheet 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


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