A CMOS single-chip fully integrated FM receiver/transmitter High-performance A/D converter Low-power internal intermediate frequency selectivity Total current consumption of approximately 22mA under certain conditions. Fully integrated digital frequency synthesizer with a 3.0V power supply (receive mode) Fully integrated on-chip and IF with a total current consumption of approximately 26mA. Fully integrated on-chip loop filter with a 3.0V power supply (maximum power transmission full digital transmitter mode) Overview: The RDA5820NS is a next-generation single-chip broadcast FM receiver/transmitter tuner with integrated synthesizer, intermediate frequency selectivity, and MPX decoder. The chip is manufactured using CMOS technology and supports multiple interfaces. The RDA5820NS features a powerful low-to-mid frequency digital audio processor, which results in excellent sound quality under varying reception conditions. The RDA5820NS employs the dual synthesizer and a full digital transmission structure, ensuring superior transmission performance. search adjustment supporting global and campus frequency bands Support for RDS/RBDS reception and transmission within the 50-115 MHz band Support for SNR FM search Support for flexible channel spacing modes Support for a 32.768KHz crystal oscillator at 100KHz, 200KHz, 50KHz, and 25KHz Digital automatic gain control (AGC) Digital low to mid frequency tuner Digital adaptive noise cancellation Image suppression downconverter Mono/stereo switch Voltage: 3.3-5V Interface: Output: Can be directly connected to headphones Antenna: Default uses headphone wire as antenna Size: Width 23.1mm x Length 32.7mm x Height 6.2mm Fixing Hole: 2mm Frequency: 76-108.0MHz No Load Current: 0.23mA Color:Red Material:PCB Package Contents: 1 * RDA5820N Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.