Datasheet RDA5807MP (RDA Microelectronics) - 10

link to page 10 RDA Microelectronics, Inc. RDA5807MP FM Tuner V1.0 REG BITS NAME FUNCTION DEFAULT
10
RDS_FIFO_CLR 1 = clear RDS fifo 1
9 SOFTMUTE_EN If 1, softmute enable
0
8 AFCD AFC disable.
0
If 0, afc work; If 1, afc disabled.
7 rsvd Read as 0. 0 6 I2S_ENABLE I2S enable. 0 0 = disabled; 1 = enabled. 5:4 GPIO3[1:0] General Purpose I/O 3.when 00 gpio_sel=00or11 00 = High impedance 01 = Mono/Stereo indicator (ST) 10 = Low 11 = High 3:2 GPIO2[1:0] General Purpose I/O 2. when gpio_sel=10 00 00 = High impedance 01 = Interrupt (INT) 10 = Low 11 = High 1:0 GPIO1[1:0] General Purpose I/O 1. when gpio_sel=01 00 00 = High impedance 01 = Reserved 10 = Low 11 = High
05H 15 INT _MODE If 0, generate 5ms interrupt;
1
If 1, interrupt last until read reg0CH action occurs. 14:13 Seek_mode Default value is 00; When = 10, will add the 00 RSSI seek mode. 12 RSVD 11:8 SEEKTH[3:0]2 Seek SNR threshold value 1000 7:6 LNA_PORT_SEL[1:0] LNA input port selection bit: 10 00: no input 01: LNAN 10: LNAP 11: dual port input 5:4 LNA_ICSEL_BIT[1:0] Lna working current bit: 00 00=1.8mA 01=2.1mA 10=2.5mA 11=3.0mA 3:0 VOLUME[3:0] DAC Gain Control Bits (Volume). 1011 0000=min; 1111=max
2 The default noise threshold is 71dB 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 10 of 21 Document Outline General Description Features Applications Table of Contents Functional Description FM Receiver Synthesizer Power Supply RESET and Control Interface select Control Interface Electrical Characteristics Receiver Characteristics Serial Interface I2C Interface Timing Register Definition Pins Description Application Diagram Audio Loading Resistance Larger than 32Ω & Reference Clock Application: Bill of Materials: Audio Loading Resistance Larger than 32Ω & DCXO Application: Bill of Materials: Physical Dimension PCB Land Pattern Change List Contact Information