RDA5820 데이터 시트보기 (PDF) - Unspecified

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RDA5820

SINGLE-CHIP BROADCAST FM TRANSCEIVER

Unspecified 

RDA Microelectronics, Inc.

9.2 Universal FM RX/TX Application Schematic:

RDA5820 FM Transceiver V1.3

Notes:

1. J1: Common 32Ω Resistance

Headphone;

2. U1: RDA5820 Chip;

3. FM Choke (L3 and C3) for Audio

Common;

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 9-2. RDA5820 FM Transceiver External RCLK Application Diagram

9.2.1 Bill of Materials:

COMPONENT

U1

J1

C8/C9

L3/C3

C4,C5

C6

VALUE

RDA5820

0.22uF

100nH/24pF

125µF

24nF

DESCRIPTION

Broadcast FM Transceiver

Common 32Ω Resistance Headphone

Audio Couple Capacitors

LC Chock for LNA Input

Audio AC Couple Capacitors

Power Supply Bypass Capacitor

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

SUPPLIER

RDA

Murata

Murata

Murata

Murata

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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