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Microchip Technology LE58QL063HVC
- Part No.:
- LE58QL063HVC
- Manufacturer:
- Microchip Technology
- Category:
- Telecom
- Package:
- 64-LQFP
- Datasheet:
-
LE58QL063HVC.pdf
- Description:
- IC TELECOM INTERFACE 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,988
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Product details
Overview
LE58QL063HVC from Zarlink Semiconductor is a quad-channel, low-voltage subscriber line audio-processing circuit (QLSLAC™) implementing codec, filter, and two-to-four-wire conversion functions for telecom line cards. It operates on 3.3 V CMOS with 5 V-tolerant digital inputs, supports pin-programmable PCM/MPI or GCI interface modes, delivers 2.048 Mbits/s data rate, and integrates four independent signal processing channels for BORSCHT support with Zarlink SLIC devices.
For engineers reviewing the LE58QL063HVC datasheet, LE58QL063HVC pinout, LE58QL063HVC application, or LE58QL063HVC equivalent, key selection criteria include its software/coefficients compatibility with Le79Q061/063 QSLAC devices, programmable digital I/O with debouncing, A-law/µ-law/linear coding support, real-time data interrupt capability, and time slot assigner supporting up to 128 channels per port.
Technical Context
The LE58QL063HVC implements four independent digital signal processors, each with configurable transmit/receive digital filters (GX, GR, Z, B1, B2, X, R), transhybrid balancing, and analog impedance scaling. Its architecture enables full software control of transmission gain, equalization, and SLIC device input impedance across all channels.
In PCM/MPI mode, it supports single or dual PCM ports with flexible clock slot and transmit clock edge options; in GCI mode, it consolidates control and PCM data on one port at 2.048 MHz or 4.096 MHz, using a monitor channel for configuration and status reporting with COP/SOP/TOP command structure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Four independent, software-configurable audio processing channels for simultaneous line card operation. |
| Interface Modes | Pin-selectable PCM/MPI or General Circuit Interface (GCI); supports standard PCM/microprocessor or unified control+data bus. |
| Data Rate | 2.048 Mbits/s - matches E1/T1 framing requirements for telecom line card integration. |
| Coding Formats | A-law, µ-law, or linear PCM - enables global deployment across PSTN regions with standardized companding. |
| Master Clock Options | 1.536–8.192 MHz (PCM/MPI) or 2.048/4.096 MHz (GCI) - provides flexibility for system clock tree design and synchronization. |
| Power Supply | 3.3 V CMOS core with 5 V-tolerant digital I/O - simplifies level-shifting and coexistence with legacy 5 V control logic. |
| Time Slot Assigner | Up to 128 time slots per port - enables dense channel mapping in multi-port PCM highway systems. |
Pinout & Package
LE58QL063HVC is housed in a 64-pin LQFP (Low-Profile Quad Flat Package) with 0.5 mm pitch, RoHS-compliant green finish, and thermal pad exposed on underside for enhanced heat dissipation in line card applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1–VIN4 | Analog input (channel 1–4) | Differential analog voice inputs from SLIC devices; supports mixed-state impedance scaling. |
| VOUT1–VOUT4 | Analog output (channel 1–4) | Differential analog outputs driving SLIC line interfaces; integrated filtering ensures compliance with ITU-T G.712. |
| PCLK/DCL | PCM/GCI data clock | Configurable as PCM frame sync (FS/FSC) or GCI data clock; determines sampling timing and data alignment. |
| MCLK/E1 | Master clock input | Accepts 1.536–8.192 MHz reference; used for internal DSP clock generation and filter coefficient timing. |
| GCI/PCM | Mode select input | Hardware pin that sets interface protocol at power-up; determines register map and timing behavior. |
| INT | Interrupt output | Open-drain or TTL real-time data interrupt signaling event-ready status to host microprocessor. |
| CS/PG | Chip select / page select | Enables SPI-like MPI access; PG bit extends address space for extended register sets. |
| RST | Reset input | Asynchronous active-low reset; initiates hardware initialization sequence and clears internal state machines. |
Key Features
| Feature | Design Value |
|---|---|
| Software & coefficient compatibility with Le79Q061/063 QSLAC | Enables drop-in migration path and reuse of existing firmware, filter coefficients, and calibration tables. |
| Programmable digital I/O with debouncing | Reduces external component count for supervision signaling and status monitoring in line card designs. |
| Built-in test modes (loopback, tone generation) | Supports factory and field diagnostics without external test equipment; accelerates production test coverage. |
| Transmit/receive gain and equalization control | Allows dynamic adaptation to varying loop lengths and cable characteristics in deployed telephone lines. |
| Real-time data with interrupt | Provides immediate notification of PCM data availability or alarm conditions, minimizing host polling overhead. |
Applications
| DSLAM Line Card | VoIP Gateway |
|---|---|
Use Scenario: Integrated into DSLAM shelf line cards handling 32–64 subscriber lines with embedded POTS support. IC Role / Device Role / Timing Role: Performs codec, filtering, and hybrid balancing for four analog voice channels per IC; synchronizes to E1 master clock. Use Value: Enables high-density line card design with software-defined gain, equalization, and impedance matching-reducing need for manual calibration per line. | Use Scenario: Embedded in enterprise VoIP gateways bridging analog phones to SIP-based IP networks. IC Role / Device Role / Timing Role: Acts as primary audio front-end for FXS ports; interfaces via PCM to VoIP processor (e.g., TI TMS320C55x or Analog Devices SHARC). Use Value: Delivers ITU-T G.711-compliant A-law/µ-law encoding with <0.5% THD+N, ensuring carrier-grade voice quality over IP. |
| Central Office Switch | Remote Terminal Unit |
Use Scenario: Deployed in Class 5 central office switches requiring scalable, field-upgradable line interface modules. IC Role / Device Role / Timing Role: Provides four-channel BORSCHT functionality when paired with Zarlink SLICs (e.g., LE7920); supports robbed-bit signaling and E1 multiplexing. Use Value: Eliminates discrete filter components and reduces PCB area by >40% versus legacy analog solutions while maintaining full feature parity. | Use Scenario: Used in rural remote terminal units (RTUs) serving 16–32 subscribers over long copper loops (>5 km). IC Role / Device Role / Timing Role: Configures transmit/receive gains and equalization per channel to compensate for loop loss; uses chopper clock (256 kHz) for SLIC switching regulator sync. Use Value: Extends usable loop reach by 1.2 dB SNR margin through adaptive digital equalization and precise transhybrid balance tuning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel telecom codec applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LE58QL061BVC | 44-pin TQFP package; identical electrical specs and register compatibility but reduced pin count limits I/O expansion and SLIC interface options. | Suitable for space-constrained designs with fewer supervision signals or simplified SLIC control paths. | Select when board layout density is critical and full 64-pin I/O capability is unnecessary. |
| LE79Q063 | Legacy QSLAC device; same functional block diagram and coefficient set but lacks GCI mode and real-time data interrupt capability. | Requires external interrupt logic and separate control/data buses; limited to PCM/MPI-only systems. | Choose only for brownfield upgrades where GCI mode or interrupt-driven operation is not required. |
Compared with LE58QL061BVC, LE58QL063HVC offers expanded I/O for complex SLIC supervision and dual-PCM port support; compared with LE79Q063, it adds GCI interface efficiency and real-time interrupt responsiveness-both critical for modern programmable line cards.
Availability
LE58QL063HVC is available at Aetrix Electronics and suitable for DSLAM line cards, VoIP gateways, central office switches, and remote terminal units requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LE58QL063HVC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Zarlink Semiconductor Inc. was a fabless semiconductor company specializing in communications ICs, acquired by Microsemi in 2011. It pioneered high-reliability SLAC™ and QLSLAC™ families for telecom infrastructure.
The LE58QL063HVC belongs to the Ve580 Series QLSLAC™ product line, designed specifically to replace discrete analog line card functions with fully programmable, software-configurable quad-channel audio processing for next-generation telephone switch line cards.
FAQ
What is the primary function of the LE58QL063HVC in telecom line card designs?
The LE58QL063HVC performs codec, digital filtering, and two-to-four-wire conversion for four independent subscriber lines. It replaces discrete analog components with integrated digital signal processing, enabling software-controlled gain, equalization, transhybrid balance, and impedance scaling-key for BORSCHT implementation when paired with Zarlink SLIC devices.
Does the LE58QL063HVC support both A-law and µ-law companding?
Yes, the LE58QL063HVC supports A-law, µ-law, and linear PCM coding formats via software configuration. This allows seamless deployment in ETSI (A-law) and ANSI/T1.403 (µ-law) telephony environments without hardware changes, and is verified in the device's electrical characteristics section for distortion and linearity performance.
How does the LE58QL063HVC handle real-time data reporting?
The LE58QL063HVC provides real-time data via an interrupt-capable register (INT pin). When enabled, it asserts an open-drain or TTL-level interrupt signal upon PCM data availability or status change, allowing host microprocessors to respond immediately without polling-reducing latency and CPU overhead in time-critical line card applications.
Is the LE58QL063HVC pin-compatible with earlier QSLAC devices like the LE79Q063?
No, the LE58QL063HVC is not pin-compatible with LE79Q063 due to differences in package (64-pin LQFP vs. 48-pin TQFP), pin assignment, and added GCI-mode signals. However, it is software and coefficient compatible-enabling reuse of firmware and filter tables while requiring PCB layout revision for physical integration.
What clock frequencies does the LE58QL063HVC support in GCI mode?
In GCI mode, the LE58QL063HVC supports 2.048 MHz and 4.096 MHz clock options on the DCL input. These frequencies align with standard E1 framing and double-rate PCM timing, respectively, and are selected via configuration registers-not hardware pins-allowing runtime reconfiguration without board changes.
LE58QL063HVC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Function:
- Subscriber Line Interface Concept (SLIC)
- Interface:
- PCM
- Number of Circuits:
- 4
- Voltage - Supply:
- 3.3V
- Current - Supply:
- -
- Power (Watts):
- -
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-LQFP (14x14)
LE58QL063HVC FAQ
1.How can I place an order for LE58QL063HVC through Aetrix?
Please submit a Request for Quotation (RFQ) for LE58QL063HVC on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LE58QL063HVC reliable?
The price and inventory of LE58QL063HVC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LE58QL063HVC is usually 5 days.
3.What payment methods are accepted for LE58QL063HVC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LE58QL063HVC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LE58QL063HVC?
LE58QL063HVC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LE58QL063HVC order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LE58QL063HVC?
For technical support, including LE58QL063HVC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LE58QL063HVC requirements.
6.How does Aetrix verify that LE58QL063HVC is sourced from the original manufacturer or authorized distributors?
All LE58QL063HVC products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LE58QL063HVC meets industry standards.
7.What is the process for return or replacement of LE58QL063HVC?
All LE58QL063HVC units undergo pre-shipment inspection (PSI). If there is an issue with LE58QL063HVC, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LE58QL063HVC part is unused and in its original packaging.
Return procedure for LE58QL063HVC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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