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LE58QL021FJC
LE58QL021FJC
| Part Number | LE58QL021FJC |
|---|---|
| Manufacturer | Microsemi / Microchip Technology |
| Category | Integrated Circuits (ICs) > Interface – Telecom ICs / CODEC / SLAC |
| Description | High-performance, low-power, 4-Channel Quad Subscriber Line Audio-Processing Circuit (QLSLAC) engineered for precise voice-band digitization, advanced programmable digital filtering, and unified PCM/MPI interfacing in telecom hardware. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The LE58QL021FJC is a 4-channel QLSLAC telecom codec from Microsemi (Microchip). Built on low-power CMOS, it integrates four delta-sigma codecs, programmable digital filters and coefficient blocks on one chip.
It supports per-channel tuning of gain, frequency response and line impedance via MPI, and converts analog voice signals to standard PCM streams. Matched for external SLIC chips, it optimizes line card designs for VoIP gateways and central office PSTN equipment. Packaged in thermally stable PLCC-44 tape-and-reel, it is ideal for high-density voice communication systems.
Core Advantages
Four Independent Codec Processing Channels
Consolidates four complete audio-processing paths into one physical IC package, significantly reducing overall printed circuit board routing space and component count compared to discrete solutions.
Highly Adaptable Digital Filtering Engine
Features programmable digital filters that allow dynamic adjustment of transhybrid balance, gain tracking, and frequency equalization, enabling seamless international telecommunication compliance without hardware modifications.
Flexible PCM & Microprocessor Interface
Integrates standard PCM highway interfaces along with an intuitive Microprocessor Interface (MPI) link, allowing easy data routing and configuration access with legacy and modern network controllers alike.
Ultra-Low Dynamic Power Dissipation
Utilizes dynamic power management sub-blocks that reduce current draw during standby states, minimizing thermal dissipation inside high-density multi-channel line cards and network enclosures.
Key Specifications
| Brand | Microsemi / Microchip Technology |
|---|---|
| RoHS Status | RoHS Compliant / Lead-Free Standard (Eco-Friendly Material Matrix) |
| EDA/CAD Model | 3D Model & PCB Footprint Available upon request |
| Warranty | 1-Year Standard Factory Warranty |
| Package / Case | PLCC-44 |
| Mounting Type | Surface Mount Technology (SMD/SMT) |
| Surface Marking / Silkscreen | Le58QL021FJC Marking |
| Codec Type Architecture | 4-Channel Quad Subscriber Line Audio-Processing Circuit (QLSLAC) |
| Interface Compatibility | PCM (Pulse Code Modulation) Data Highway & MPI Control Bus |
| Programmable Transmission Factors | AC Impedance, Hybrid Balance, Transmit/Receive Relative Gains, and Frequency Response |
| Data Encoding Methods | Selectable A-law or μ-law Companding Options |
| Nominal Operating Voltage | +3.3V Digital and Analog Core Rail Operation |
| Voice Band Sampling Performance | High-Resolution Over-Sampling Delta-Sigma Converter Topology |
| Operating Temperature Range | -40°C to +85°C (Industrial System Reliability Grade Envelope) |
Typical Applications
- Integrated Access Devices (IADs), Enterprise VoIP Gateways, and Virtual Private Branch Exchange (PBX) Hubs
- Central Office Telecommunication Switching Equipment and High-Density PSTN Subscriber Line Cards
- Fiber-to-the-Curb (FTTC), Fiber-to-the-Home (FTTH) Optical Network Terminals (ONTs), and Broadband Modems
- Wireless Local Loop (WLL) Base Station Interfaces and Fixed-Wireless Rural Telecom Infrastructure
- Industrial Telemetry Systems, Emergency Help Desk Terminals, and Automated Voice Responding Arrays
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: Is your currently available stock of the LE58QL021FJC component 100% original and genuine?
A: Yes, we guarantee that all LE58QL021FJC QLSLAC devices in our inventory are 100% brand-new, factory-original components from Microsemi / Microchip. They are processed and dispatched strictly within moisture-controlled anti-static ESD shielding pipelines.
Q2: What is the packaging structural designation of the “T” suffix inside this part number?
A: The “T” suffix indicates that the components are packaged on standard factory Tape and Reel spools. This format is configured for immediate high-speed deployment on automated electronic SMT pick-and-place lines.
Q3: How does the software-programmable architecture simplify multi-region telecom equipment designs?
A: Because parameters like line impedance, relative gain, and transhybrid balancing are entirely software-programmable via the MPI interface, engineers can alter the chip’s electrical behavior through firmware to meet varying regional telecom standards worldwide, without changing physical hardware.
Q4: How can our engineering development group request reference line card designs, firmware libraries, or ask for tiered volume discount quotes?
A: Please complete our Quick Inquiry web form on this page with details about your processing parameters. Our application support desk will process your inquiry and dispatch the available technical documentation package within 24 hours.
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