RDA Microelectronics, Inc. RDA5807NP FM Tuner V1.2 6Serial Interface6.1 I2C Interface TimingTable 6-1I2C Interface Timing Characteristics (VDD = 3.0 V, TA = 25°C, unless otherwise specified) PARAMETERSYMBOLTEST CONDITIONMINTYPMAXUNIT SCLK Frequency f scl 0 - 400 KHz SCLK High Time t high 0.6 - - µs SCLK Low Time t low 1.3 - - µs Setup Time for START Condition t su:sta 0.6 - - µs Hold Time for START Condition t hd:sta 0.6 - - µs Setup Time for STOP Condition t su:sto 0.6 - - µs SDIO Input to SCLK↑ Setup t su:dat 100 - - ns SDIO Input to SCLK↓ Hold t hd:dat 0 - 900 ns STOP to START Time t buf 1.3 - - µs SDIO Output Fall Time t f:out 20+0.1Cb - 250 ns SDIO Input, SCLK Rise/Fall Time tr:in / t f:in 20+0.1Cb - 300 ns Input Spike Suppression t sp - - 50 ns SCLK, SDIO Capacitive Loading C b - - 50 pF Digital Input Pin Capacitance 5 pF tsu:sta thd:sta tsu:dat thd:dat tsp tsu:sto tbuf SDIO SCLK 1-7 8 9 1-7 8 1-7 8 9 9 START address r/w ACK data high byte ACK data low byte ACK STOP START Figure 6-1. I2C Interface Write Timing Diagram tsu:sta thd:sta tsu:dat thd:dat tsp tsu:sto tbuf SDIO SCLK 1-7 8 9 1-7 8 1-7 8 9 9 START address r/w ACK data high byte ACK data low byte NACK STOP START Figure 6-2. I2C Interface Read Timing Diagram 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 8 of 23 Document Outline 1 General Description Features Applications 2 Table of Contents 3 Functional Description 3.1 FM Receiver Synthesizer Power Supply RESET and Control Interface select Control Interface IP2PS Audio Data Interface GPIO Outputs 4 Electrical Characteristics 5 Receiver Characteristics 6 Serial Interface 6.1 IP2PC Interface Timing 7 Register Definition 8 Pins Description 9 Application Diagram 9.1 RDA5807FP Common Application : Bill of Materials: 10 Physical Dimension 11 PCB Land Pattern: 12 Change List Contact Information