RDA5830 SINGLE-CHIP BROADCAST FM/AM/LW/SW RECEIVER
The RDA5830/1 is a single-chip broadcast FM/AM/LW/SW (LW/SW only for RDA5830) receiver with fully integrated synthesizer, IF selectivity and MPX decoder. The chip uses the CMOS process, support multi-interface and require the least external component. The package size is 4X4mm and is completely adjustment-free. All these make it very suitable for portable devices.
The RDA5830/1 has a powerful low-IF digital audio processor, this make it have optimum sound quality with varying reception conditions.
The RDA5830/1 use auto frequency calibration, this make it have perfectly performance and agility.
The RDA5830/1 support world band FM/AM （RDA5831 alos suppory LW/SW） frequency band receive, support weather band and also support RDS/RBDS receive .
The RDA5830/1 directly support wide power supply range (1.8V~5V).
1.CMOS single-chip fully-integrated FM/AMreceiver
♦ Total current consumption lower than 20mA at
♦ FM mode and 23mA at AMmode
3.Support worldwide and campus frequency band：
♦ 500-2000 KHz AMband
♦ 65-220MHz FMband
♦ 150-500KHz LWband (RDA5831 only)
♦ 2-30MHz SWband (RDA5831 only)
♦ Weather band
4.Digital low-IF tuner：
♦ Image-reject down-converter
♦ High performance A/D converter
♦ IF selectivity performed internally
5.Fully integrated digital frequency synthesizer：
♦ Fully integrated on-chip RF and IF VCO
♦ Fully integrated on-chip loop filter
6.Autonomous search tuning
7.Support RDS/RBDS receive
10.Support 32.768KHz crystal oscillator
11.Digital auto gain control (AGC)
12.Digital adaptive noise cancellation：
♦ Mono/stereo switch
♦ Soft mute
♦ High cut
13.Programmable de-emphasis (50/75 ms)