88-108MHz DIY Kit FM Radio Transmitter and Receiver Module Frequency Modulation Stereo Receiving PCB Circuit Board COD

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Description:

2. Operating Current: 5-15mA

4. Transmission Distance: 5-50m

6. Audio Input: -15dB (max)

Description:






Applicable:
1>.Training welding skills2>.Student school3>.DIY production4>.Project Design5>.Electronic competition6>.Graduation design7>.Crafts collection8>.Home decoration9>.S0uvenir collection
Installation Tips:
1>.User needs to prepare the welding tool at first.2>.Please be patient until the installation is complete.3>.The package is DIY kit.It need finish install by user.4>.The soldering iron can't touch the components for a long time(1.0 second), otherwise it will damage the components.5>.Pay attention to the positive and negative of the components.6>.Strictly prohibit short circuit.7>.Install complex components preferentially.8>.Make sure all components are in right direction and right place.9>.It is strongly recommended to read the installation manual before starting installation!!!
Installation Steps
1>.Step 1: Install 1pcs SOP-16 RDA5807PF at U1.There is a dot on one corner of the IC and there is a rectangle pad on PCB where the Pin1 of IC can place on.These two marks are corresponding to each other and are used to specify the installation direction of the IC.2>.Step 2: Install 1pcs 30K ohm Resistor at R1.3>.Step 3: Install 1pcs 0.1uH Inductor at L1.4>.Step 4: Install 2pcs 1uH Inductor at L2,L3.5>.Step 5: Install 1pcs 32.768KHz Crystal Oscillator at Y1.6>.Step 6: Install 1pcs 24pF Ceramic Capacitor at C1.7>.Step 7: Install 1pcs 0.01pF(103) Ceramic Capacitor at C2.8>.Step 8: Install 1pcs 0.022pF(223) Ceramic Capacitor at C3.9>.Step 9: Install 5pcs 6*6*5mm Switch at S1-S5.10>.Step 10: Install 1pcs 100uF 16V Electrolytic Capacitor at C4,C5. Please pay attention to the positive and negative poles. The shorter pin is the negative pole.11>.Step 11: Install 1pcs 3.5mm Audio Jack at J1.12>.Step 12: Connect battery box.Pay attention to positive and negative.13>.Step 13: Use a cable tie to fasten the battery box.14>.Step 14: Connect to power supply and enjoy the effect.