Product description

The SCT3258TD is a low power, high performance baseband processor, supporting DMR and dPMR radio protocols. The device embeds the data link layer and much of the call control layer processing of the DMR and dPMR protocol. The use of an external audio codec completes the entire physical layer. In DMR mode it complies with ETSI TS 102 361 and in dPMR mode it complies with ETSI TS 102 490 and ETSI TS 102 658.

Designed to simplify the migration from analog to multi-standard digital/analog radios, the designer can start with a typical analog radio, replacing the analog baseband processor with the SCT3258TD together with an external codec and obtain the base DMR/dPMR and analog radio function. To achieve the full potential of  DMR/dPMR, application-level software programming is required on the host processor.

A fully embedded vocoder implementation is included in the device with options for the AMBE+2 and other standard low bit rate vocoders. An external vocoder can also be connected if required.

The SCT3258TD contains two high-speed serial ports, a single 8-bit processor interface (HPI) and a 4-pin programmable I/O port. The two serial ports are used to connect to the audio codec and optional external vocoder. Communication with the host processor is via the 8-bit HPI port.

Detailed product support is available including an evaluation kit, application notes, FAQs and reference design material.

 

Sicomm Technology Product Range

Sicomm Technology

The SCT3258TD is made available through CML’s ‘Sicomm Technology’ product range that is specifically targeted at high volume and low cost radio applications.

Block diagram

SCT3258TD Block Diagram

Datasheets

No additional information available.

Please ensure that you have downloaded the latest datasheet containing up-to-date information on product operation, technical specifications and packaging.

Features

  • Supports Multiple Radio Protocols
  • Automatic Digital/analog mode detection
    • DMR standard
    •  Supports dPMR Tier 1, Tier 2
    • Air interface Layer 1, Layer 2, Layer 3
    • Full Annex C support
    • Transmit in slotted or continuous mode
    • Receive in slotted or continuous mode
  • dPMR standard
    • Supports dPMR Tier 1, Tier 2
    • Air interface Layer 1, Layer 2, Layer 3
    • Supports 1031 Hz Tone and Silence Test Mode
    • Full Annex A support
  • Analog Mode
    • Full audio processing including compander
    • CTCSS/DCS detection/generation
    • Supports two-point modulation
  • Embedded  Vocoders
    • Support for multiple vocoders
    • Built-in: AMBE+2™, RALCWI
    • External vocoder options
  • 4FSK Modem
    • 4800/9600 data rate
    • Automatic frame sync detection
    • Programmable modulation index
  • Low power operation
    • DMR mode  64mW
    • dPMR mode 38mW

Applications

  • DMR Radio
  • dPMR Radio
  • Multi-mode Digital PMR/LMR with Analog Mode

 

Power supply requirement

  • Core  1.2V
  • Digital I/O 2.5V – 3.3V

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Design resources

For a full list of FAQs please visit the SCT3258TD page on the Technical Portal

If you require access please contact your local CML representative.

For application support please visit the SCT3258TD page on the Technical Portal

If you require access please contact your local CML representative.


 

For Software support please visit the SCT3258TD page on the Technical Portal

If you require access please contact your local CML representative.


 

SCT9366D SCT9366D The SCT9366D is a PMR radio transceiver design that supports DMR/Analog or dPMR/Analog operation.  The design is based on a digital baseband processor SCT3258TD, MCU, direct conversion receiver, integrated PLL/VCO and high efficiency power amplifier. SCT9366D_Product_Preview

 

SCT3258HDK SCT3258-HDK The SCT3258-HDK development board is a comprehensive, evaluation, test and development platform that helps product designers to gain experience with the SCT3258 digital radio baseband chip. The SCT3258 HDK is ideal for comparing voice quality for various vocoders, analysing protocol bit streams, and establishing interface requirements. SCT3258HDK_User_Manual

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