Xov xwm

Dab tsi ua haujlwm ua haujlwm ntawm digital FM xov tooj cua xa khoom?

Digital FM Transmitter muaj qhov tseem ceeb sib txawv ntawm Analog FM Transmitter.

Txog rau luv luv, Analog FM Transmitter siv VCO + PLL analog technology, tab sis Digital FM Transmitter siv DSP + DDS software wireless xov tooj cua digital technology, daim duab raws li hauv qab no:

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Cov Txheej Txheem Ua Haujlwm:

Cov Digital FM Transmitter suav nrog 6 ntu ntawm ntu: Qhov Teeb Ntsuas Kev Tshaj Tawm Suab Paj Nruag module; Digital Signal Txheej Txheem module; Digital FM Modulator thiab Band Pass Lim module; Tso zis hluav taws xob amplifier thiab qis-dhau lim module; Tus txiv neej-tshuab Interface & Kev sib txuas lus module thiab fais fab mov & Circuit Court module.

Audio Signal Input module: Nws txais cov lus taw qhia audio audio thiab digital audio (AES / EBU) teeb liab tawm tswv yim. Analog audio teeb liab hloov mus ua digital audio los ntawm (A / D) hloov hloov, tom qab ntawd DSP tawm tswv yim. Digital audio input DSP ncaj qha. Lub DSP yuav xaiv qhov teeb liab twg thiaj yog cov teeb meem tawm tswv yim audio.

Digital Signal Txheej Txheem Txheej Txheem: Qhov no yog qhov tseem ceeb hauv Exciter / Transmitter, qhov tseem ceeb yog kev ua tau zoo 550MHz digital teeb liab processor (DSP), DSP no tuaj yeem tswj tau los ntawm software thiab ua cov txheej txheem digital audio kom tau txais kev hloov kho; cov khoom siv digital filtering; kev qhia ua ntej digital; digital sim tshwm sim; digital stereo coding, thiab tom qab ntawd tsim stereo composite teeb liab khiav, tom qab ua haujlwm kev ua lej, qhov khiav yuav hloov mus rau FM exciter baseband txaus, nws yuav digital FM flow teeb liab, cov cim hluav taws xob no yuav xa mus rau 1000MHz Direct Digital Synthesizer (DDS) , tom qab ntawd hloov mus rau FM RF Qhov Kev Sau Npe.

Digital FM Modulator thiab Band Pass Lim module: Lub hauv paus ntawm chav ntsuas no yog Digital Digital Synthesizer (DDS), nws tau txais cov hluav taws xob FM flow teeb liab los ntawm DSP, thiab tom qab ntawd coj los ua hluav taws xob rau cov xov tooj cua FM RF los ntawm nws cov hluavtaws ncaj qha sab hauv, nws sab hauv digital / lub tshuab hloov hluav taws xob tuaj yeem tsim cov hluav taws xob analog FM hloov cov teeb liab, thaum kawg tau txais hluav taws xob FM RF teeb liab los ntawm Band-pass Lim.

Tso zis hluav taws xob amplifier thiab qis-lim lim module: Chav tsev no raug kaw Lub voj voos rho tawm tsis siv neeg (AGC) FM RF fais fab amplifier thiab qis-kis lim Circuit Court. Nws tuaj yeem xyuas kom lub chaw teeb tsa hluav taws xob tsim kom ruaj khov nyob rau lub sijhawm ua haujlwm ntev.

Txiv neej-tshuab kev sib tshuam & Kev sib txuas lus module: Chav tsev no siv ib qhov kev ua haujlwm siab System-on-a-Chip (SOC) ua cov txheej txheem Exciter / Transmitter Man-machine Interface; Kev khaws cov ntaub ntawv ua haujlwm; Kev tiv thaiv tswb; Kev sib txuas lus thiab lwm yam haujlwm. Txhua txoj haujlwm ua haujlwm tau nkag los ntawm khawm; LCD npo thiab lub teeb tso saib Transmitter Cov xwm txheej. Nws tuaj yeem siv RS232 / RS485 / CAN / TCPIP kev sib txuas lus sib txuas nrog cov PC deb kom cov ntaub ntawv xa mus thiab cov chaw taws teeb tswj kev ua haujlwm.

Lub zog muab hluav taws xob & Circuit Court module: nws muab DC hluav taws xob ruaj khov hluav taws xob rau txhua txoj haujlwm ua hauv Transmitter.

Sau ntawv cia Ncua