Dongguan Chia Maw Electronics Tech RF4020 Wireless Audio Transmitter User Manual

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Document ID	627549
Application ID	xiLP5pcCeh0QI+9Y/u3Bog==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	15.95kB (199382 bits)
Date Submitted	2006-02-10 00:00:00
Date Available	2006-02-10 00:00:00
Creation Date	2006-01-19 16:17:04
Producing Software	Acrobat Distiller 6.0 (Windows)
Document Lastmod	2006-01-19 16:17:36
Document Title	Users Manual
Document Creator	Acrobat PDFMaker 6.0 Word 版

Wireless Audio System
JK-RF4020
User’s manual
Content
Introduction……………………..…………1
User information…………………..………1
Cautions……………………………………2
Connections……………………………..…3
Features…………………………………….4
Note…………………………………….…..5
Introduction
Using the wireless technology, you can enjoy the music when you want stay in outdoors, just
like park. The music can travel through space by RF signals, the same times you can get
perfect audio functions.
FCC ID LABEL:
Connections:
PRODUCT BRIEF
Auto Mute :when signal received is “mute”
Digital Volume Control: for precision volume control
Auto Power Down: when no signal is received for a preset period of time
Forward Error Correction :ensures high integrity of the audio transmission
Baseband Mode: to bypass the compression/decompression blcck
SPI Interface to program the RFICs ARF2481S/ARF2461C
I²S Interface: to your choice of DAC/ADC
Diversity Antenna: providing robust interference immunity
Programmable Output Power Level: offering flexibility in applications
Control Interface: with microcontroller or Serial EEPROM
Transmitter Specifications
Frequency Range
Power Supply
board)
Modulation/Demodulation Scheme
Current Consumption
Number of Channels
Range (Line of Sight)
Sampling Rate
Frequency Response
S/N Ratio
enabled)
Separation
Dynamic Range
2.4GHz-2.4835GHz
3.3V (IC), 5V (Demo
FSK
75mA@10KΩ loading
(Rx) 125mA (Tx)
14
100 meters@+10dBm
48/44.1/32KHz
20Hz-20KHz
88dB (mute function
80dB
78dB


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