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LE58QL031

Codec/Filter SLAC Device

Status: In Production

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Overview
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Development Environment
RoHS Information
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Device Overview

Summary

Microchip's cost-effective, software-programmable solution is the Le58QL02/021/031 QLSLAC and the Le58QL061/063 QLSLAC line of DSP-based voice codec/filters. The four-channel QLSLAC devices handle the analog-to-digital and digital-to-analog conversion, filtering, compression and expansion functions required to interface a telephone's analog voice signals to the digital PCM highway or General Circuit Interface (GCI).

Additional Features
  • Low-power, 3.3 V CMOS technology with 5-V tolerant digital inputs
  • Software and coefficient compatible to the Le79Q02/ 021/031 QSLAC device
  • Performs the functions of four codec/filters
  • Software programmable
    • SLIC device input impedance
    • Transhybrid balance
    • Transmit and receive gains
    • Equalization (frequency response)
    • Digital I/O pins
    • Programmable debouncing on one input
    • Time slot assigner
    • Programmable clock slot and PCM transmit clock edge options
  • Standard microprocessor interface
  • A-law, µ-law, or linear coding
  • Single or Dual PCM ports available
    • Up to 128 channels (PCLK at 8.192 MHz) per PCM port
    • Optional supervision on the PCM highway
  • 1.536, 1.544, 2.048, 3.072, 3.088, 4.096, 6.144, 6.176, or 8.192 MHz master clock derived from MCLK or PCLK
  • Built-in test modes with loopback, tone generation, and µP access to PCM data
  • Mixed state (analog and digital) impedance scaling
  • Performance guaranteed over a 12 dB gain range
  • Real Time Data register with interrupt (open drain or TTL output)
  • Supports multiplexed SLIC device outputs
  • Broadcast state
  • 56 kHz or 293 kHz chopper clock for SLIC devices with switching regulator
  • Maximum channel bandwidth for V.90 modems
Parametrics
Name
Value
Application
Access Networks Quad SLAC
Series
VE580
Loop Length
Long
SOC Interface
PCM/MPI
Number of Ports
4

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Data Sheets

Application Notes


Please visit the Microsemi Software Download System (SDS) for available software.

RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
LE58QL031DJC
1.103500
2.233333
32
PLCC
-
Matte Tin
e3
LE58QL031DJCT
1.103500
2.293333
32
PLCC
-
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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