VOCODER - Low Bit Rate Voice Module: LST

1. COMPANY PROFILE:
LINKSTAR TECHNOLOGIES LIMITED, with Headquarters in Hongkong is a synergy of
technocrats, with Technology Design & Development and EMS Facilities (Electronics and
Telecommunications) in India. With a long presence in the Communications Industry,
Linkstar provides solutions and value to Manufacturers and System Integrators. LINKSTAR
has the resources & capability to design, develop and manufacture “Electronics and
Communication” products from concept. Our expertise ranges from Design, Development
and product manufacturing, & EMS (Electronics Manufacturing Services) for OEMs.
LST Vocoder Product Synopsis:
Linkstar has been in the Vocoder business for over two decades. The LST Vocoder Module
from Linkstar Technologies Ltd is a product inspired from a previous version of a Vocoder
module that was introduced by the present Directors of Linkstar, with the marketing and sales
experience of over two decades. We have now launched the new generation LST Vocoder.
Due to obsolescence of key components of the previous product, Linkstar embarked on
designing and developing and building a newer and more effective Vocoder product
integrating multiple features required in a Communications environment.
The new LST Vocoder series has integral features beyond the realm of any available Vocoder
product, and fills the vacuum of any near or similarly available Vocoder. The LST Vocoder
meets varying needs of a product manufacturer, without need for additional peripheral circuits,
thereby reducing the bulk, and redundant factors to the end product. The LST Vocoder gives
the customer a product integrated with most interface and peripheral needs, combined with
ease of integration to build an end product, with requisite robustness and reliability.
Applications:
The LST Vocoder can be seamlessly integrated to:
 Legacy systems and Networks-TDM-(Packet),
 Line Cards of Private
 Networks,
 VoIP,
 Secure Phones,
 Modems,
 Encryption Systems,
 Fixed or Portable Transceivers, HF/VHF/UHF, P25,
 Interoperability Systems for Tactical applications.

2.  Speech compression @ 600bps, 1200bps and 2400bps.
 Speech compression G.723.1- 5300 bps and 6300 bps
 Line Echo Canceller (G.168)
 E&M Signaling.
 Module with connector assembly.
Interface & Peripherals:
 Analog & Digital PCM Voice Interface
 Synchronous and Asynchronous Serial Interface
 Continuous /Burst Mode
 8-bit Parallel Interface for DMA Internal clock.
Electrical:
 Voltage: 3.3v or 5.0v
 Power Consumption: < 0.8w
Mechanical:
Environmental Properties:
Storage Temperature - 600
C to +850
C
Operating Temperature: 00
to +700
C, RH-95%
Advantages of LST Vocoder Module Designs:
• Standard Universal Interface
• Compact Form Factor
• Ease of Integration
• Upgradable & Scalable
Interface & Peripherals:
• Analog & Digital Voltage PCM Voice Interface Synchronous and Asynchronous
• Serial Interface Continuous /Burst Mode
CUSTOMIZATION (OPTIONS & VARIANTS)
 Form Factor
 DTMF Tone Generation/Detection
 Fax Relay/Bypass
 Data Relay/Bypass
 Modem
 Encryption
 USB Interface
 Proprietary CELP Speech Codec (near Toll Quality at 4800/9600 bps)
Module
Version
Length Breadth Height Unit
36 PIN 30 60 1.6 mm
72 PIN 108 24.5 1.6 mm
LST VOCODER
LST VOCODER TECHNICAL DATA

3. LST-EPK- EVALUATION PROGRAMMING KIT:
LST-EPK Evaluation/Programming Kit an Evaluation Kit, with optional Programming
Capability allows user to port Proprietary & Custom Algorithms (as modem, encryption)
and eliminate the need for additional development kits, redundant hardware for
peripheral circuits to the end product. The EPK is supplied with a Programmer tool
with requisite software, Power Supply, connectors and cables.
LST-EPK Applications:
 Test and evaluate LST Modules.
LST-EPKwith Programmer:
 Upgrade LST Module.
 Port Custom/Proprietary Algorithms.
 EPK Integral FPGA Programming
Interface.
 Serial Communication (USB Port for EPK).
 Electrical Data: 3 External Power Supply Adaptors and Patch Cord to SMPS.
 Mechanical Data: 202 (H) X 155 (W) X 50 (H) mm.
Suite 605, 6th
Floor
China Insurance Group Building,
141, Des Voeux Road,
Central, HONG KONG
Website: www.linkstartechnology.com
E MAIL:sales@linkstartechnology.com
support@linkstartechnology.com
Channel Partners:
Electrolink Systems, Bangalore, INDIA
sales@electrolinkstar.com
LST EPK