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

SRT3210/2 Analog Radio Baseband Signal Processor and Controller IC

Overview

SRT3210/SRT3212 is a highly integrated Soc(System on chip) designed for Walkie-Talkie by Sicomm.It incorporates all baseband signal processing functions and system control functions that are required for Walkie-Talkie systems.Sicomm innovatively implement digital sgnal processing techniques into the traditional analog radio system,With the customized DSP,we improve the audio quality,add customized features and reduce power comsumptions.

Features

• CTCSS/DCS dual-mode
• Positive and negative DCS code
• DTMF generation
• FSK data transmission
• Real time clock
• Digital scrambler
• VOX
• High quality digital filters to separate audio and sub-audio channel
• Digital compander to improve audio quality
• 8 steps coarse and 256 fine steps, digital RX volume control
• 8 steps coarse and 256 fine steps, digital TX gain control
• Programmable MCU system clock with built-in PLL and 32.768kHz XO
• 32k×8 bits OTP ROM
• 512×8 bits RAM
• Up to 59 GPIO’s
• 8 high-current ports (source current 10mA, sink current 30mA)
• A built-in 4-channel multiplexed 8-bit ADC
• Two built-in 8-bit DAC’s
• UART interface
• LCD driver for 4×31 panel
• Built-in watchdog timer (WDT) and 2 user programmable timers
• Programmable modulator gain to match with different VCO sensitivity
• 14x14mm LQFP100 package(SRT3210)
• 10x10mm LQFP64 package(SRT3212)

Block Diagram