Digital Signal Processing Solutions Tools: Telecommunication Algorithms

Product Name: V27 'C5x/'C2xx/'C2x DSP Code
Company Name: AlgoTron Ltd
Features & Benefits:
  • Excellent transmission performance
  • Low DSP resource usage
  • Simple control/data/sample interface
  • Fast-retrain option
  • Backwards channel available
TMS320 Devices Supported: C2x C2xx C5x
Data Rate (kbps): 4.8kbps
Program Memory (k word): 2.4kword
Data Memory (k word): .025kword
Processor Loading (MIPS): 3.5MIPS
Target Platform: TMS320C5x/C2xx/C2x
Hardware Requirements: Single DSP plus static RAM for program and data memory
Word Size: 16-bit
Clock Rate: 40MHz
Group Delays:
Technical Support/Training Available: Yes
A user guide is provided. Full integration support is available.
Overview: Implements the data pump function of the ITU modem standards V27ter, V27bis, and V27. They provide half-duplex transmission over the telephone network at rates of 4.8 and 2.4kb/s for application with Group 3 fax. They also provide full-duplex data transmission over 4-wire leased lines. An optional independently-controlled backward channel can be incorporated for rates of up to 75b/s. The software is in the form of two callable subroutines, one for initialization and one for per-symbol processing of data and sample blocks. Both 9.6 and 8.0kHz sample rates are supported.
Ideal Performance: SNR for 10-6 error rate: At 2.4kbs: 12dB - flat channel; 16dB - Bell 3002 channl At 1.2kbps: 9dB - flat channel; 12dB - Bell 3002 channel.
Algorithm Verification: Confirmed by interoperation with commercial standalone modem.
Availability: Now, sale under license.
Operating System Used: None required.
Tools Supported By:
Company Information: AlgoTron Ltd
25 Clarendon Dr.
Putney London SW15 1AW UK
Tel: 181-246-6706
Fax: 181-246-6706
e-mail: modems@algotron.demon.co.uk
www: http://www.algotron.demon.co.uk
A DSP software company. AlgoTron specializes in modem data pump code. Our painstakingly-crafted products combine low DSP resource usage with near optimum transmission performance.

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