Linkstar Technologies is an electronics company based in the USA with offices in Hong Kong and manufacturing facilities in India. It designs and develops vocoder modules for use in communications applications. The company's LST Vocoder is a programmable module that integrates speech compression, echo cancellation, and signaling in a compact format. It can be customized and integrated into systems for voice, data, and secure communications. Linkstar also offers an evaluation and programming kit to help customers test and customize the vocoder for their applications.

1. COMPANY PROFILE:
LINKSTAR TECHNOLOGIES LIMITED based in the USA, with Worldwide Distribution & Sales
office in Hongkong is a synergy in Communications Technology, with Design, Development
& EMS Facilities (Electronics & Telecommunications) in India. Linkstar provides solutions
and value to Manufacturers and System Integrators. LINKSTAR has expertise and resources
to design, develop & manufacture “Electronics & Communication” products from concept
for System Integrators and OEMs.
LST Vocoder Product Synopsis:
The LST Vocoder Module from Linkstar Technologies Ltd is a product inspired from a previous
version of a Vocoder module. Linkstar has successfully designed and developed a newer
generation Vocoder integrating multiple features required in a Communications environment.
The new LST Vocoder series has integral features beyond the realm of any available Vocoder
product. The LST Vocoder is integrated with interface and peripheral needed for a product
manufacturer, without need for additional peripheral circuits. The Vocoder configurations and
functionality are “User Software Configurable”, and also allows user to port “Proprietary
Algorithms” to the Module, through the “Evaluation and Programming Kit”. This reduces
redundant hardware to an end product. The LST Vocoder is manufactured to stringent quality
standards, making it extremely robust and reliable.
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. (in 72 PIN Module Version only)
Electrical:
 Voltage: 3.3v (in 36 PIN Version only) &/or 5.0v ( in 72 PIN Module Version only),
 Power Consumption:<0.8w
Mechanical:
Environmental Properties:
Storage Temperature - 600
C to +850
C
Operating Temperature: 00
C 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 (SIM) 60 30 1.6 mm
72-PIN (SIM) 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-EPKwithProgrammer:
 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 (mm):202-H X 155-W X 50-H.
Website: www.linkstartechnology.com
LST EPK
MAIMI, Florida, USA
shyam@linkstartechnology.com
Phone: +1-786 804 1595
SALES & MARKETING:
sales@linkstartechnology.com
sales@electrolinkstar.com
bala@linkstartechnology.com
jairaj@linkstartechnology.com
Technical Support and Information
support@linkstartechnology.com
support@electrolinkstar.com
Worldwide Distribution and Sales:
LINKSTAR TECHNOLOGIES LIMITED
Suite 605, 6th Floor, China Insurance Group Building,
141, Des Voeux Road Central, HONGKONG
sales@linkstartechnology.com
Channel Partners:
Design, Development, Manufacturing:
Electrolink Systems,
Bangalore, INDIA
Phone: 91 80 26585500
91 94480 61448
sales@electrolinkstar.com
bala@electrolinkstar.com