Product Preview PP/9943/1 September 2013 DE9943 SDR Demonstrator Software Defined Radio Demonstrator for Two-slot TDMA Digital Radio Introduction DE9943 Brief Description Two-slot TDMA Digital Radio is a growing market leading the PMR migration to digital technology. The DE9943 is a compact demonstration/evaluation platform for 2-slot TDMA Digital Radio designs incorporating the CMX7161 TDMA Digital Radio Processor, the CMX7262 TWELP Professional Radio Vocoder and the CMX994 Direct Conversion Receiver. Even though the market is very competitive there with many opportunities for newcomers to enter, take advantage of latest IC developments and release leading edge products into the market. An easy development path to assist the market newcomers is essential. This is a key factor in getting the end product to market in the fastest possible time. The DE9943 SDR demonstrator provides the answer, as it simplifies the overall development task. The board is supplied with support files to enable a quick and easy transition to a customer’s own end product design. Design Support Available via the CML website (www.cmlmicro.com) DE9943 SDR Demonstrator User manual Board schematics Board Gerber files BOM list Scripts Host ‘C’ code Individual Product Data CMX7161 TDMA Digital The DE9943 can be used to demonstrate a complete RF transceiver and baseband function supporting a direct conversion receiver and VCO two-point modulation transmitter. The board features a built in keyboard, display, microphone and loudspeaker and so can be used to demonstrate DMR peer-to-peer operation in a standalone configuration. The board has an ARM processor which handles initial board power up and loading of the Function Images for the CMX7161 and CMX7262. Once the system is powered up, the processor will handle basic radio functionality (channel selection etc) and baseband control, allowing demonstration of a simple voice call and data transfer. The DE9943 provides a Fractional-N PLL and VCO plus associated circuits to provide local oscillator signals for the CMX994. The design also includes a 1W power amplifier, harmonic filter and Tx/Rx switch. The RF performance is designed to be compliant with EN 300 113 and all the circuits are provided with power-down capability to allow standby functionality. Feature Summary On-board Direct Conversion Digital Radio Demonstrator ARM Host Processor (Cortex M3) Provides a demonstration platform for: Frac-N PLL and VCO for 444 MHz Direct Conversion Receiver CMX994 to 450 MHz Operation TDMA Radio Processor CMX7161 1W Power Amplifier TWELP Professional Radio Vocoder CMX7262 Microphone Can function in the following modes Loudspeaker Completely stand-alone Jack sockets for audio in/audio Controlled by scripts running via a PC out User-defined host controller interface 16-button (4 x 4) Keypad Designed to meet ETSI EN 300 113 2 x 16-character LCD Display ‘C’ code for rapid development of host drivers Powered by external 4.5V power supply or 3 x AA batteries Radio Processor CMX994 Direct Conversion Receiver CMX7262 Professional Radio Vocoder Links www.cmlmicro.com DE9943 product page CMX7161 Product page © 2013 CML Microsystems Plc 1 DE9943 SDR Demonstrator for Two-slot TDMA Digital Radio Product Preview Board Block Diagram Baseband RF J4 Speaker/ Headphones J6 Microphone TXEN_RXEN 2 J10 Antenna TX/RXEN RXIN T/R RXI CMX994 RXQ TXOUT LO IN CBUS PA (RF5110G) I Audio PA 2 Q 2 Audio Out TWELP Vocoder (CMX7262) CBUS (Slave) 4 Q in TX_MOD1 I in GPIO MOD1 OUT Modem (CMX7161) Generic Vocoder Daughterboard Connector MOD2 OUT TX_MOD2 Frac-N PLL VCO Mic Loop Filter Serial (Slave) AuxDAC2 AUX DACs SSP (Master) CBUS (Slave) Ref Osc (19.2MHz) J3 C-BUS 3 CBUS (Master) J8 PA_Supply Power KEY Internal Connection Coax Connector Regulator +3V3D Regulator +3V3A Regulator +3V3A_Rx_Tx Regulator Host: UART (ARM Cortex M3 Internal Flash and RAM) I/O I/O +3V3_VCO PTT RS232 to USB J11 USB to PC LCD: 2x16 characters I/O Keypad 4x4 For further details of the DE9943 TDMA Digital Radio SDR Demonstrator Board, please visit CML’s website (www.cmlmicro.com) and search for ‘DE9943’ CML’s proprietary FirmASIC® component technology reduces cost, time to market and development risk, with increased flexibility for the designer and end application. FirmASIC® combines Analogue, Digital, Firmware and Memory technologies in a single silicon platform that can be focused to deliver the right feature mix, performance and price for a target application family. Specific functions of a FirmASIC® device are determined by uploading its Function Image™ during device initialization. New Function Images™ may be later provided to supplement and enhance device functions, expanding or modifying end-product features without the need for expensive and time-consuming design changes. FirmASIC® devices provide significant time to market and commercial benefits over Custom ASIC, Structured ASIC, FPGA and DSP solutions. They may also be exclusively customised where security or intellectual property issues prevent the use of Application Specific Standard Products (ASSP’s). FirmASIC , FirmCODEC , RALCWI, Function Image and DuraTALK are trademarks of CML Microsystems Plc. Phone: +44 (0) 1621 875500 +1 336 744 5050 +65 62 888129 800 638 5577 Fax: +44 (0) 1621 875600 +1 336 638 5577 +65 62 888230 Email Sales: [email protected] [email protected] [email protected] [email protected] [email protected] [email protected] Email Tech Support: www.cmlmicro.com © 2013 CML Microsystems Plc Search for: cmlmicro 2