Literature Licensing Buy On-Line Download Entire Site Part Number Knowledge DB

Home   |   Products   |   Support   |   End Markets   |   Technology Center   |   Education & Events   |   Corporate   |   Buy On-Line

Devices   |   Design Software   |   Intellectual Property   |   Design Services   |   Dev. Kits/Cables   |   Literature

IP Products    Embedded Processors    Interfaces & Peripherals    DSP           Filtering           Modulation/Demodulation           Transforms           Encryption/Decryption           Correlation           Error Detection/Correction           Video & Image Processing           Audio Processing           Arithmetic           Signal Generation           Additional Functions           Consortiums           Literature    Communications     About IP       Designing with IP       IP Certifications       System Design       Request IP     IP Industry Partners       About AMPP Program       AMPP Core Partners

Home > Products > Intellectual Property > DSP > Signal Generation > Telephony Tone Generation (ToneGen) Print This Page Telephony Tone Generation (ToneGen) from Ncomm, Inc. Features Generates single- and dual-frequency tones used in telephony applications Outputs ST-Bus, IOM-2, IDL, and other standard-compatible serial streams containing from 1 to 32 tones Supports both µ-Law and A-Law encoding algorithms Provides fully configurable gain control for individual tones and for each frequency component that makes up a tone Parameterization via the MegaWizard™ Plug-In features tone creating, tone editing, and tone testing using a sound-capable computer Block Diagram Figure 1 shows the block diagram for the tone generation (ToneGen) megafunction. Figure 1. Block Diagram Description The tone generation (ToneGen) megafunction is a Mitel ST-Bus-compatible device providing from 1 to 32 user-programmable tones used in telephony applications. The ToneGen megafunction can generate any combination of single- and/or dual-frequency tone sequences, such as dialtone, ringback, busy, dual tone multi-frequency (DTMF), SS7 path validation, MF, and any other custom tone sequence. The ToneGen megafunction supports gain control, µ-law or A-law encoding, and other parameters on a tone-by-tone basis, providing complete control over the tones being generated. Because the megafunction is parameterized with the MegaWizard Plug-In, the ToneGen megafunction allows users to configure new tones, edit existing tones, listen to generated tones on a sound-capable computer, and minimize the ROM storage required to contain the tones. The Altera MegaWizard Plug-In provides a simple and powerful way to add tone generation to telephony or other applications. Device Utilization Example Table 1 lists the typical device utilization results for the megafunction. Table 1. Typical Device Utilization for the Megafunction Device Speed Grade Utilization Performance (fMAX) Parameter Setting Logic Cells EABs (1) EPF10K100 -4 445 6 23.14 MHz MF tones 0-9, ST, and KP 136 6 26.24 MHz Dialtone, busy tone, and ringback EPF10K50 -4 50 4 30.48 MHz Dialtone EPF10K20 -3 445 4 30.86 MHz MF tones 0-9, ST, and KP 136 6 26.24 MHz Dialtone, busy tone, and ringback Note: EABs = Embedded array blocks Contact Information For additional information, you can contact NComm, Inc. at: NComm, Inc. 401 Main Street Suite 204 Salem, NH 03079 Tel. (603) 893-6186 Fax (603) 893-6534 E-mail: info@ncomm.com   Rate This Page

Please Give Us Feedback   Sign Up for E-mail Updates

Home | Products | Support | End Markets | Technology Center | Education & Events | Corporate | Buy On-Line  Devices | Design Software | Intellectual Property | Design Services | Dev. Kits/Cables | Literature  Contact Us | Site Help | Site Map | Privacy | Legal Notice  Copyright © 1995-2008 Altera Corporation, 101 Innovation Drive, San Jose, California 95134, USA Altera, Stratix, Arria, Cyclone, MAX, HardCopy, Nios, Quartus and MegaCore are trademarks of Altera Corporation