Datasheet

RDA Microelectronics, Inc. RDA5807M FM Tuner V1.1
The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole or in
part without prior written permission of RDA.
Page 16 of 22
8.2 Audio Loading Resistance Larger than 32Ω & DCXO Application:
J1
SCLK
SDIO
V1
C4 125uF
C3 125uF
C2
22nF
6
7
8
9
10
1
2
3
4
5
LOUT
ROUT
GND
VDD
RCLK
GND
FMIN
GND
SCLK
SDIO
RDA5807M
L1 100nH
C1 22pF
U1
F1 1.5K@100MHz
F2 1.5K@100MHz
R1
10K
R2
10K
32.768kHz
Figure 8-2. RDA5807M FM Tuner Application Diagram (32.768K crystal)
8.2.1 Bill of Materials:
COMPONENT VALUE DESCRIPTION SUPPLIER
U1 RDA5807M Broadcast FM Radio Tuner RDA
J1 Common 32Ω Resistance Headphone
L1/C1 100nH/22pF LC Chock for FMIN Input Murata
C3,C4 125µF Audio AC Couple Capacitors Murata
C2 22nF Power Supply Bypass Capacitor Murata
F1/F2 1.5K@100MHz FM Band Ferrite Murata
R1,R2 10KΩ I
2
Murata C Bus Pull-up Resister
Notes:
1. J1: Common 32Ω Resistance
Headphone;
2. U1: RDA5807M Chip;
3. V1: Power Supply (2.7~3.3V);
4. FM Choke (L1 and C1) for Audio
Common and LNA Input Common;
5. Place C2 Close to 5807M pin7.