Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

LE58QL022

Quad Low Voltage Audio-Processing SLAC

Status: In Production

View More
Overview
Documents
Development Environment
RoHS Information
Add To Cart

Device Overview

Summary

The Le58QL022 Quad Low Voltage Subscriber Line Audio-Processing Circuit (QLSLAC™) devices integrate the key functions of analog line cards into high-performance, veryprogrammable, four-channel codec-filter devices. The QLSLAC devices are based on the proven design of Legerity’s reliable SLAC™ device families. The advanced architecture of the QLSLAC devices implements four independent channels and employs digital filters to allow software control of transmission, thus providing a cost-effective solution for the audio-processing function of programmable line cards. The QLSLAC devices are software and coefficient compatible to the QSLAC devices.

Additional Features
  • Low-power, 3.3 V CMOS technology with 5 V tolerant digital inputs
  • Software and coefficient compatible to the Am79Q02/ 021/031 QSLAC device
  • Performs the functions of four codec/filters
  • Software programmable:
    • — SLIC 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 outputsBroadcast state
  • 256 kHz or 293 kHz chopper clock for Legerity 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

Documents

Jump to:

Data Sheets

  
925KB

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
LE58QL022BVC
0.273300
2.706250
44
TQFP
10x10x1mm
Matte Tin
e3
LE58QL022BVCT
0.273300
0.808333
44
TQFP
10x10x1mm
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.

Buy from Microchip

Grid
View
Table
View
Filter:
Apply
Clear
Only show products with samples
Product
Leads
Package Type
Temp Range
Packing Media
5K Pricing
Buy