Digital Walkie Talkie ICs

• Baseband:SCT3288
• Baseband:SCT3258
• RF transceiver:SCT3811
• RF transceiver:SCT3700
• RF PA(2W):SCT3604

Digtal radio & Basestation modules

• Basestation:SCT3252B
• Digtial basestation module :SCT9377
• Digital radio module:SCT9388

Voice & Wireless ICs

• Voice processor:SCT2088
• 2.4GHz Transceiver:SCT2400

Analog Walkie Talkie ICs

• RF PA(2W):SCT3604

SCT3258 Digital Radio Baseband Signal Processor

Overview

SCT3258 is a highly integrated digital radio baseband signal processor designed by Sicomm.

Features

• Specialized Digital Radio IC:
• Support Multiple Protocols(DPMR, DMR)
• DPMR standard
• Support DPMR Tier 1, Tier 2
• Air interface Layer 1, Layer 2, Layer 3
• Full Annex A support
• DMR stanard
• Support 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
• Support Multiple Vocoders
• Build-in: ASELP(Tsinghua), AMBE +2C(DVSI), AMBE3000(soon to come)
• External vocoder option(e,g.AMBE3000)
• Support 1031 Hz Tone and Silence Test Mode
• Automatic vocoder switching at the receiver in DPMR mode
• 4FSK Modem
• 4800 data rate
• Automatic frame sync detection
• Programmable modulation index
• Support two point modulation
• Analog Mode Support(auto switch,CTCSS/DCS etc)
• Premium Features
• Voice Recording and Playing back
• 16 / 64 / 192 bit voice encryption
• High performance, low power consumption

Block Diagram