DE9944 [CMLMICRO]
SDR Demonstrator;
| 型号： | DE9944 |
| 厂家： | 
CML MICROCIRCUITS |
| 描述： | SDR Demonstrator |
| 文件： | 总3页 (文件大小：446K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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PP/9944/1 December 2013
DE9944
SDR Demonstrator
Soꢀware Defined Radio Demonstrator for FDMA Digital/Analogue PMR
DE9944 Brief Descripꢀon
The DE9944 is a compact demonstraꢁon plaꢂorm for Narrowband FDMA
Digital/Analogue PMR Radio, providing a complete RF to baseband soluꢁon.
Introducꢀon
FDMA (6.25 kHz) digital PMR is
an enabler to achieve highly
funcꢁonal soluꢁons by using low
cost and low complexity
technology.
The board is based on the CMX7141 FDMA PMR Processor and incorporates the CMX618
RALCWI Vocoder, the CMX7262 TWELP Professional Radio Vocoder, and the CMX994 Direct
Conversion Receiver. The board can be used to demonstrate a complete RF transceiver and
baseband funcꢁon supporꢁng a direct conversion receiver and VCO 2-point modulaꢁon
transmiꢃer.
There are a number of FDMA
digital PMR technologies
available including: dPMR,
NXDN, ARIB STD-T98,
The DE9944 features a built in keyboard, display, microphone and speaker and so can be
used to demonstrate peer-to-peer operaꢁon in a stand-alone configuraꢁon. The board has an
ARM processor which handles iniꢁal board power up and loading of the Funcꢁon Images for
the CMX7141 and CMX7262. Once the system is powered up, the processor implements basic
radio funcꢁonality (channel selecꢁon etc) and baseband control, allowing demonstraꢁon of a
simple voice call and data transfer.
ARIB STD T-102, all providing the
best possible channel efficiency.
dPMR is an ETSI standard that
offers voice and/or data for peer
-to-peer through to complex
trunking applicaꢁons. The dPMR
ETSI standards TS 102 490 and
TS 102 658 comply with the
Harmonised EN 301 166-2
Standard.
The DE9944 provides a Fracꢁonal-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 301 166 for
dPMR applicaꢁons and TIA-603-D / EN 300 086 for analogue applicaꢁons. All the circuits are
provided with power-down capability to allow powersave / standby operaꢁon.
The DE9944 FDMA digital radio
SDR demonstrator provides the
fastest route from evaluaꢁon
through to producꢁon of a small,
highly integrated FDMA digital
PMR Radio.
Feature Summary
Direct Conversion Digital Radio Demonstrator
Digital PMR (e.g. dPMR) and Analogue FM
Provides demonstraꢁon plaꢂorm for:
On-board
ARM Host Processor (Cortex M3)
Frac-N PLL and VCO for 444 MHz
to 450 MHz Operaꢁon
1W Power Amplifier
Microphone
Loudspeaker
Jack sockets for audio in/out
16-buꢃon (4 x 4) Keypad
2 x 16-character LCD Display
Powered by external 4.5V power
supply or 3 x AA baꢃeries
Design Support
Available via the CML website:
Direct Conversion Receiver CMX994
FDMA Radio Processor CMX7141
TWELP Professional Radio Vocoder CMX7262
RALCWI Vocoder with Integrated Voice Codec
CMX618
DE9944 SDR Demonstrator
User manual
Board schemaꢁcs
Board Gerber files
BOM list
Can funcꢁon in the following modes
Completely stand-alone
Scripts
Controlled by scripts running via PC
User-defined host controller interface
Host ‘C’ code
Individual Product Data
CMX7141 Analogue/
digital PMR Processor
CMX994 Direct
Conversion Receiver
CMX7262 Professional
Radio Vocoder
CMX618 RALCWI Vocoder
© 2013 CML Microsystems Plc
1
DE9944 SDR Demonstrator for FDMA Digital/Analogue PMR
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Board Block Diagram
© 2013 CML Microsystems Plc
2
DE9944 SDR Demonstrator for FDMA Digital/Analogue PMR
Product Preview
For further details of the DE9944 SDR Demonstrator for FDMA Digital/Analogue PMR, please visit CML’s
website www.cmlmicro.com or just search for DE9944
CML’s proprietary FirmASIC® component technology reduces cost, ꢁme to market and development risk, with increased
flexibility for the designer and end applicaꢁon. FirmASIC® combines Analogue, Digital, Firmware and Memory
technologies in a single silicon plaꢂorm that can be focused to deliver the right feature mix, performance and price for a
target applicaꢁon family. Specific funcꢁons of a FirmASIC® device are determined by uploading its Funcꢁon Image™
during device iniꢁalizaꢁon. New Funcꢁon Images™ may be later provided to supplement and enhance device
funcꢁons, expanding or modifying end-product features without the need for expensive and ꢁme-consuming design changes. FirmASIC® devices provide
significant ꢁme to market and commercial benefits over Custom ASIC, Structured ASIC, FPGA and DSP soluꢁons. They may also be exclusively customised
where security or intellectual property issues prevent the use of Applicaꢁon Specific Standard Products (ASSP’s).
FirmASIC , FirmCODEC , RALCWI, Funcꢁon Image and DuraTALK are trademarks of CML Microsystems Plc.
TWELP is a trademark of DSP Innovaꢁons, Inc.
Phone:
+44 (0) 1621 875500
+1 336 744 5050
800 638 5577
+65 62 888129
Fax:
Email Sales:
+44 (0) 1621 875600
Sales@cmlmicro.com
+1 336 638 5577
+65 62 888230
us.sales@cmlmicro.com
us.techsupport@cmlmicro.com
sg.sales@cmlmicro.com
sg.techsupport@cmlmicro.com
Email Tech Support:
techsupport@cmlmicro.com
www.cmlmicro.com
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© 2013 CML Microsystems Plc
3
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