link to page 9 RDA Microelectronics, Inc. RDA5807MP FM Tuner V1.0 REG BITS NAME FUNCTION DEFAULT If 1, reset.0ENABLEPower Up Enable. 0 0 = Disabled; 1 = Enabled03H15:6CHAN[9:0]Channel Select. 0x13f BAND = 0Frequency =Channel Spacing (kHz) xCHAN+ 87.0 MHzBAND = 1or 2Frequency =Channel Spacing (kHz) xCHAN + 76.0 MHzBAND = 3Frequency =Channel Spacing (kHz) xCHAN + 65.0 MHzCHAN is updated after a seek operation.5DIRECT MODEDirectly Control Mode, Only used when test. 0 4TUNETune 0 0 = Disable1 = EnableThe tune operation begins when the TUNE bitis set high. The STC bit is set high when thetune operation completes.The tune bit is reset to low automatically whenthe tune operation completes..3:2BAND[1:0]Band Select. 00 00 = 87–108 MHz (US/Europe)01 = 76–91 MHz (Japan)10 = 76–108 MHz (world wide)111= 65 –76 MHz ( East Europe ) or 50-65MHz1:0SPACE[1:0]Channel Spacing. 00 00 = 100 kHz01 = 200 kHz10 = 50kHz11 = 25KHz04H15RSVDReserved 0 14 STCIEN Seek/Tune Complete Interrupt Enable. 0 0 = Disable Interrupt 1 = Enable Interrupt Setting STCIEN = 1 will generate a low pulse on GPIO2 when the interrupt occurs. 13 RBDS 1 = RBDS mode enable 0 0 = RDS mode only 12 RDS_FIFO_EN 1 = RDS fifo mode enable. 0 11DEDe-emphasis. 0 0 = 75 µs; 1 = 50 µs 1 If 0x07h_bit<9> ( band )=1, 65-76MHz; =0, 50-76MHz 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 9 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