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Microchip Technology LE58QL063HVCT
- Part No.:
- LE58QL063HVCT
- Manufacturer:
- Microchip Technology
- Category:
- Telecom
- Package:
- 64-LQFP
- Datasheet:
-
LE58QL063HVCT.pdf
- Description:
- IC TELECOM INTERFACE 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,598
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Product details
Overview
LE58QL063HVCT 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 - enabling full BORSCHT functionality when paired with Zarlink SLIC devices in telephone switch line card applications.
For engineers reviewing the LE58QL063HVCT datasheet, LE58QL063HVCT pinout, LE58QL063HVCT application, or LE58QL063HVCT equivalent, this device requires attention to its dual-mode interface selection (PCM/MPI vs. GCI), time slot assigner configuration (up to 128 channels/port), programmable digital I/O debouncing, A-law/µ-law/linear coding support, and chopper clock compatibility (256 kHz or 293 kHz) with Zarlink SLICs.
Technical Context
The LE58QL063HVCT implements four fully independent digital signal processing channels, each with configurable transmit/receive gain, equalization, transhybrid balance, and analog impedance scaling. Its architecture uses digital filters derived from master clock (MCLK/PCLK) or DCL to perform band-limiting, frequency response correction, and speech coding per channel.
It supports two distinct operational modes: PCM/Microprocessor Interface (PCM/MPI) with standard TDM timing and General Circuit Interface (GCI) mode where control and PCM data share a single port at 2.048 MHz or 4.096 MHz. Clock slot selection, transmit edge polarity, and supervision signaling are software-configurable via MPI or GCI monitor channel commands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | Four independent audio-processing channels for simultaneous line-card operation. |
| Interface Modes | Pin-selectable PCM/MPI or GCI; enables flexible integration with microprocessors or system-on-chip controllers. |
| Data Rate | 2.048 Mbits/s - matches E1/T1 framing requirements for telecom infrastructure. |
| Coding Formats | A-law, µ-law, or linear PCM - ensures interoperability with global PSTN and VoIP gateways. |
| Master Clock Options | 1.536–8.192 MHz (PCM/MPI); 2.048/4.096 MHz (GCI) - supports multiple telephony standards without external clock synthesis. |
| SLIC Compatibility | 256 kHz or 293 kHz chopper clock output - directly drives Zarlink SLIC devices with switching regulators. |
| Power Supply | 3.3 V CMOS core with 5 V-tolerant digital I/O - simplifies level-shifting in mixed-voltage line card designs. |
Pinout & Package
LE58QL063HVCT is housed in a 64-pin LQFP (Low-Profile Quad Flat Package) with 0.5 mm pitch, RoHS-compliant green finish. The package supports surface-mount assembly and thermal performance suitable for dense line card layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS/PG | Chip Select / Page Select | Enables SPI-like communication; selects register page during MPI access. |
| RST | Hardware Reset Input | Asynchronous active-low reset that initializes all registers and disables outputs. |
| FS/FSC | Frame Sync / Frame Sync Control | Defines PCM frame boundaries; configurable as input or output depending on master/slave role. |
| PCLK/DCL | PCM Clock / Data Clock | Provides bit-rate timing in PCM/MPI mode (PCLK) or GCI mode (DCL); supports 2.048/4.096 MHz operation. |
| MCLK/E1 | Master Clock / E1 Clock Input | Accepts 1.536–8.192 MHz clock for internal PLL derivation; doubles as E1 reference in multiplexed systems. |
| GCI/PCM | Mode Selection Input | High = GCI mode; Low = PCM/MPI mode - sets fundamental interface architecture at power-up. |
| INT | Interrupt Output | Open-drain or TTL-compatible real-time interrupt signal for event-driven host processor response. |
| DIO/S1 | Data I/O / Serial Data 1 | Bidirectional serial data line in GCI mode; used for monitor channel command/data transfer. |
Key Features
| Feature | Design Value |
|---|---|
| Software & coefficient compatibility with Le79Q061/063 QSLAC | Reduces migration effort and requalification time when upgrading legacy line card designs. |
| Time Slot Assigner (TSA) supporting up to 128 channels per port | Enables flexible TDM resource allocation across multiple voice or data streams in multi-port systems. |
| Programmable digital I/O with hardware debouncing | Eliminates need for external RC filters or firmware polling for status inputs like hookswitch or ground key detection. |
| Built-in test modes: loopback, tone generation, µP-accessible PCM data | Supports in-system diagnostics and automated production testing without external signal sources. |
| Mixed-state (analog + digital) impedance scaling network (AISN) | Allows precise matching of line impedance across varying loop lengths and cable types without discrete components. |
Applications
| DSLAM Line Card | Voice Gateway |
|---|---|
Use Scenario: Integrated voice processing in carrier-grade DSL access multiplexers handling hundreds of POTS lines. IC Role / Device Role / Timing Role: Performs codec, filtering, and hybrid balancing for four subscriber lines simultaneously; synchronizes to central office E1 clock. Use Value: Enables high-density line cards with software-defined gain, equalization, and signaling - reducing component count and calibration labor. |
Use Scenario: Analog telephony adapter (ATA) or session border controller converting PSTN calls to SIP/VoIP. IC Role / Device Role / Timing Role: Acts as primary audio front-end, digitizing analog voice and applying A-law companding before packetization. Use Value: Delivers carrier-grade audio quality (≤22 dB THD+N) and robust robbed-bit signaling support for legacy PBX integration. |
| IP-PBX Base Unit | Remote Terminal Unit (RTU) |
Use Scenario: Embedded voice processing in enterprise IP-PBX systems supporting analog station ports. IC Role / Device Role / Timing Role: Provides four-channel PCM interface to MCU; handles real-time data interrupts for hookswitch and ground key events. Use Value: Offloads audio processing from host processor while enabling feature-rich SLIC control via programmable digital I/O pins. |
Use Scenario: Rural telecom remote terminal housing analog line interfaces for distributed switching nodes. IC Role / Device Role / Timing Role: Serves as BORSCHT engine for four copper lines; derives chopper clock (256 kHz) for Zarlink SLICs with switching regulators. Use Value: Supports long-loop (>10 km) operation through adjustable transmit/receive gains and transhybrid balance over 12 dB range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel subscriber line audio-processing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LE58QL061BVC | 44-pin TQFP package; lacks GCI mode support; identical core functionality and register map. | Targeted at space-constrained but lower-channel-count line cards without GCI bus requirements. | Select LE58QL061BVC only if GCI interface and 64-pin layout flexibility are unnecessary. |
| ZL38004 | Single-channel, VoIP-optimized audio processor with integrated DSP; no SLIC interface or chopper clock. | Suitable for endpoint VoIP phones or conferencing units - not for central-office line card BORSCHT roles. | Choose ZL38004 for endpoint voice enhancement; avoid for telecom infrastructure requiring quad-channel SLIC coordination. |
Compared with LE58QL063HVCT, LE58QL061BVC offers identical audio processing but reduced I/O and no GCI capability, while ZL38004 targets endpoint voice quality rather than line-card BORSCHT implementation - making LE58QL063HVCT uniquely suited for scalable, software-configurable telecom infrastructure.
Availability
LE58QL063HVCT is available at Aetrix Electronics and suitable for DSLAM line cards, voice gateways, IP-PBX base units, and remote terminal units requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for LE58QL063HVCT 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 was a fabless semiconductor company specializing in high-reliability timing, RF, and telecom interface ICs, later acquired by Microsemi (now part of Microchip Technology).
The LE58QL063HVCT belongs to the Ve580 Series QLSLAC™ product line, designed specifically to replace discrete codec-filter solutions in programmable telephone line cards with integrated, software-configurable BORSCHT functionality.
FAQ
What is the primary function of the LE58QL063HVCT in telecom systems?
The LE58QL063HVCT performs quad-channel codec, digital filtering, and two-to-four-wire conversion - essential functions for BORSCHT implementation in telephone line cards. It digitizes analog voice signals into PCM format, applies programmable gain and equalization, and interfaces directly with Zarlink SLIC devices to manage battery feed, overvoltage protection, ringing, supervision, coding, and hybrid functions.
Does the LE58QL063HVCT support both A-law and µ-law companding?
Yes, the LE58QL063HVCT supports A-law, µ-law, and linear PCM coding formats via software configuration. This allows seamless integration into ETSI (A-law) and North American (µ-law) telephony networks without hardware changes, and the selection is made per-channel through the operating conditions register.
How does the LE58QL063HVCT handle clocking in GCI versus PCM/MPI mode?
In PCM/MPI mode, the LE58QL063HVCT uses PCLK for bit timing and MCLK for internal filtering; in GCI mode, it uses DCL (2.048 or 4.096 MHz) as the sole clock source for both data and control. The GCI mode consolidates control and PCM data onto one port, eliminating separate frame sync and control lines required in PCM/MPI.
Can the LE58QL063HVCT be used with non-Zarlink SLIC devices?
The LE58QL063HVCT is optimized for use with Zarlink SLIC devices - especially regarding chopper clock generation (256/293 kHz) and SLIC I/O register mapping. While analog interface pins are standard, full BORSCHT functionality (e.g., supervision, ringing control) requires compatible SLIC register sets; interoperability with third-party SLICs must be validated per design.
What diagnostic capabilities does the LE58QL063HVCT provide for production testing?
The LE58QL063HVCT includes built-in test modes: digital loopback, tone generation (for analog path verification), and real-time data register access via µP interface. These features enable comprehensive in-circuit testing of transmit/receive paths, clock integrity, and interrupt response - reducing reliance on external test equipment during manufacturing.
LE58QL063HVCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 64-LQFP
- Packaging:
- Tape & Reel (TR)
- 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)
LE58QL063HVCT FAQ
1.How can I place an order for LE58QL063HVCT through Aetrix?
Please submit a Request for Quotation (RFQ) for LE58QL063HVCT 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 LE58QL063HVCT reliable?
The price and inventory of LE58QL063HVCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LE58QL063HVCT is usually 5 days.
3.What payment methods are accepted for LE58QL063HVCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LE58QL063HVCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LE58QL063HVCT?
LE58QL063HVCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LE58QL063HVCT 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 LE58QL063HVCT?
For technical support, including LE58QL063HVCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LE58QL063HVCT requirements.
6.How does Aetrix verify that LE58QL063HVCT is sourced from the original manufacturer or authorized distributors?
All LE58QL063HVCT 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 LE58QL063HVCT meets industry standards.
7.What is the process for return or replacement of LE58QL063HVCT?
All LE58QL063HVCT units undergo pre-shipment inspection (PSI). If there is an issue with LE58QL063HVCT, 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 LE58QL063HVCT part is unused and in its original packaging.
Return procedure for LE58QL063HVCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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