RDA5820 View Datasheet(PDF) - Unspecified

Part Name

Description

MFG CO.

RDA5820

SINGLE-CHIP BROADCAST FM TRANSCEIVER

Unspecified 

RDA Microelectronics, Inc.

9.3 Universal FM RX/TX Application Schematic:

RDA5820 FM Transceiver V1.3

Notes:

1. J1: Common 32Ω Resistance

Headphone;

2. U1: RDA5820 Chip;

3. L1: High Q Inductor for FM Tx or

Integrated PCB Antenna Rx;

4.VDD: Analog and Digital Power

Supply (2.7~5.5V);

5: C8/C9: Audio Input Couple

Capacitance;

6. Pins NC(22, 23), Should be

Leaved Floating;

7.Set MODE to select control

interface(GND—I2C,VIO—SPI);

8. Place C6 Close to VDD pin.

Figure 9-3 RDA5820 FM Transceiver Application Diagram（Small PCB antenna Application）

9.3.1 Bill of Materials:

COMPONENT

U1

U2

J1

J2

C8/C9

L1

C4,C5

C6

VALUE

RDA5820

DCXO

0.22uF

85n~150nH

125µF

24nF

DESCRIPTION

Broadcast FM Transceiver

Crystal oscillator 32.768KHz

Common 32Ω Resistance Headphone

Integrated PCB antenna (small antenna)

Audio Couple Capacitors

Inductor, Qmin=30

Audio AC Couple Capacitors

Power Supply Bypass Capacitor

SUPPLIER

RDA

<=50PPM

Murata

Murata

Murata

Murata

! C8/C9 Can be Bypassed When LIN/RIN Common Mode Voltage are 1.35~1.65V

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.

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