瑞芯微电源管理芯片，内置音频功放，RK809，可用于RK3399,3399PRO,,3288等RK809 DatasheetRev 14Table of contentTab| e of content∴,.3Figure indeⅹ,,,,,,,■■1■重■■重■■■1重■1重■1■重■1重■1重■■1重1Table index 6Warranty disclaimer∴7Chapter 1 Introduction. ..1.1 OverⅰeW∴■■81.2 Feature■■1.3 Typical Application Diagrams■■10Chapter 2 Package information重D重122.1 Ordering information…………,…,…,,…,…,,,,,,,,,.122.2 Top Marking∴∴∴122 3 Dimension,132.4 Pin Assignment................142.5 Pinout number order■.11日1■日1∴14Chapter 3 Electrical Characteristics.■■■■■■■■173.1 Absolute Maximum Ratings. .,173.2 Recommended operating conditions meII.173.3 dC Characteristics17Chapter4 Function Description ....I.RIAIIIRD:.::日::::::::::::::::n1:244. 1 Top State Machine.....244.1.1 State Machine descriptionI4. 1. 2 Power on Description,...,244.1.3 Power down description254. 1. 4 Reset264.1.5 Power Sequence Description284.1.6 Sleep Description,,,,,,,,,,,,,,,,,,,,,,,,,,304.2 Power4.2.1 Buck Description..,,,…,,…,,,,…,,,…,304.2.2 LDO Description334.3 Battery Gas Gauge334.4 Audio System.....:a::a:a:aa:a:aa:aa3544.1 General Description……■■1111354.4.2 Audio Recording path Description364. 4. 3 Head-Phone path Descriptionn1_着1_11首11D11111136Copyright C2019 Fuzhou Rockchip Electronics Co. LtdRK809 DatasheetRev 144.4. 4 Speaker path description .4.4.512 S Description.,,,,,…,,,,,,…384.5 Others■1■1■1■■11■11■■D■■1■■■1■1■i1D■1■1■1■384.5.1 Real Time Clock (RTC) Description . ..4.5.2RC Oscillator Description■138Chapter5 Register Description.……,…,,,,,,,,…,,,,,,,395.1 Register Summary::.a::::.::a:::·::a::.:::::.:::·:::::.:::::::::::::::::.:395.2 Register Description ..Chapter 6 Thermal management重■1■1重■1■1重■1■1,1166.1 Overview..,.........WI..1166.2 Package Thermal characteristics116Copyright C2019 Fuzhou Rockchip Electronics Co. LtdRK809 DatasheetRev 14Figure IndexFig. 1-1 RK809 Typical Application Diagram for no battery .Fig 1-2 RK809 Typical Application Diagram for two battery.me.amananImInI. 11Fig 2-1 QFN687mm Xmm13Fig 2-2 Pin Assignment QFN7X7-68(Pitch=0.35mm),14Fig 4-1 State Machine24Copyright C2019 Fuzhou Rockchip Electronics Co. LtdRK809 DatasheetRev 14Table indexTable 4-1 RK809-1 Power up/down sequence (X: BUCK3 voltage determined by externaldivided resistor)■■■■■1■■,■1■■1■■1■■重■■D28Table 6-1 Thermal Resistance characteristics116Copyright C2019 Fuzhou Rockchip Electronics Co. LtdRK809 DatasheetRev 14Warranty DisclaimerRockchip Electronics Co, Ltd makes no warranty, representation or guarantee (expressed, im plied statutory, or otherwise) by orwith respect to anything in this document and shall not be liable for any im plied warranties of non -infringementmerchantability or fitness for a particular purpose or for any indirect, special or consequential damagesInformation furnished is believed to be accurate and reliable. However, Rockchip Electronics Co. Ltd assumes no responsibilityfor the consequences of use of such information or for any infringement of patents or other rights of third parties that mayresult from its useRockchip Electronics Co. Ltd's products are not designed intended or authorized for using as com ponents in systems intendedfor surgical implant into the body, or other applications intended to support or sustain life or for any other application in whichthe failure of the rockchip electronics Co., Ltd's product could create a situation where personal injury or death may occur,should buyer purchase or use Rockchip Electronics Co. Ltd's products for any such unintended or unauthorized applicationbuyers shall indemnify and hold Rockchip Electronics Co. Ltd and its officers, employees, subsidiaries, affiliates, anddistributors harmless against all claims, costs damages, expenses, and reasonable attorney fees arising out of, either directlyor indirectly any claim of personal injury or death that may be associated with such unintended or unauthorized use, even ifsuch claim alleges that rockchip Electronics Co, Ltd was negligent regarding the design or manufacture of the partCopyright and Patent RightInformation in this document is provided solely to enable system and software implementers to use Rockchip Electronics Co.Ltd 's products. There are no expressed or implied copyright licenses granted hereunder to design or fabricate any integratedcircuits or integrated circuits based on the information in this documentRockchip Electronics Co., Ltd does not convey any license under its patent rights nor the rightsof othersAll copyright and patent rights referenced in this document belong to their respective owners andshall be subject to corresponding copyright and patent licensing requirements.TrademarksRockchip and rockchip m logo and the name of rock chip Electronics Co. Ltd's products are trade marks of rockchip ElectronicsCo. Ltd. and are exclusively owned by rockchip electronics Co. Ltd. References to other companies and their products usetrademarks owned by the respective companies and are for reference purpose only.ConfidentialityThe information contained herein (including any attachments) is confidential. the recipient hereby acknowledges theconfidentiality of this document and except for the specific purpose, this document shall not be disclosed to any third party.Reverse engineering or disassembly is prohibitedROCKCHIP ELECTRONICS CO.,LTD, RESERVES THE RIGHT TO MAKE CHANGES IN ITS PRODUCTS OR PRODUCTSPECIFICATIONS WITH THE INTENT TO IMPROVE FUNCTION OR DESIGN AT ANY TIME AND WITHOUT NOTICEAND IS NOT REQUIRED TO UNDATE THIS DOCUMENTATION TO REFLECT SUCH CHANGESCopyright 2019 Rockchip Electronics Co, LtdAll rights reserved. No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or byany means, electric or mechanical, by photocopying recording, or otherwise without the prior written consent of RockchipElectronics Co, LtdCopyright C2019 Fuzhou Rockchip Electronics Co. LtdRK809 DatasheetRev 14Chapter 1 Introduction1.1 OverviewThe rK809 is a complex power-management integrated circuit(PMIC) integratedCODEC for multi-core system applications powered by an external power supply. theRK809 can provide a complete power management solution with very few externalcomponentsThe RK809 provides five fast load transient synchronous step-down converters. Thedevice also contains 9 LDO regulators, two switches and a battery fuel gauge. Power-up/power-down controller is configurable and can support any customized power-up/power-down sequences (oTP based). a real-time clock (Rtc)is also integrated toprovide a 32. 768-kHz output buffer, and real time function the rK809 supports 32 768kHz clock generation based on a crystal oscillator. It also includes audio codec, realground Head phone driver and class driverThe rK809 integrates four channels step-down DC-DC converters. All of themadopt ripple base control to achieve very fast load transient response. Meanwhile, all ofthem can dynamically adjust the output voltage, as required by the processor based onthe processors operation status so as to maximize the system efficiency. The outputvoltages of most channels can be configured through the I2C interface. The inputs of alchannels have soft start function, which greatly reduces the inrush current at the startup2. 5MHZ sWitching frequency and good control method decrease the external inductanceand capacitance. The rk809 also integrate a peak current mode control high efficiencybuck converter maximum current up to 2. 5a, it's usually used to power LDOsThe rk809 integrates nine channels Ldo regulators. The ldo3 is high Psrr(75dB@1Khz) high accuracy low drop -out regulator. The inputs of all Ldo regulators could bedecrease to 2V for high convert efficiency. The output voltages of all LDO regulators canbe configured through the I2C interfacea battery fuel gauge" is integrated in the rK809. Using the proprietary algorithmsand the sensed battery current and voltage, the gauge can accurately calculate thebattery capacity based on the charging/discharging characteristics of the batterypreloaded in the system. The gauge then sends the battery capacity information to theprocessor through the I2C interface.The rK809 also integrates complete audio system. The single end or differentiamode micro-phone can be connected to rK817 through two Ac-couple capacitors 24bits ADC and gain adjustable Pga would convert the micro-phone signal to digital signaThe sound recording path has very low thd (-75dB @1KHz@580mV source). 24 bits dacwould convert digital signal to analog signal, and Class-AB driver adopt real-groundstructure for Head-phone application, has very low thd(90dB @1KHz@-3dBFS source)Meanwhile, Class-D driver integrated for speaker application. The speaker and headphone can be used at the same time. I2S interface is integrated to communicate withprocessor.The rK809 is available in a QFN6870 mmx7.0 mm package, with a 0. 35-mm pin pitchCopyright C2019 Fuzhou Rockchip Electronics Co. LtdRK809 DatasheetRev 1412 FeatureInput range:2.7V-55Vo Low standby current of 25uA (at 32. 768KHz clock frequency)● Power channe|sBUCK1:0.5Vw2 4V, 3A max, very fast transient responseBUCK2:0.5VN2 4V, 3A max, very fast transient responseBUCK3: 0.5VN2 4V or resistor divider),1.5A max, very fast transient responseBUCK4:0.5VN34V,1.5A max, very fast transient responseBUCK5: 1.5VN3.6V,2.5 A max fast transient responseLDO1LDO2, LDO4NLDO9:0.6VN3, 4V, 400mA max9 LDO3: high PSrr (75dB 1KHZ,0.6vN34V 100mA maxSwitch 1: 2.1 A max Rdson=90m$Switch 2: 2.1 A max, rdson=100mQOTP Programmable power up/down sequences and voltageO Accurate battery fuel gauge with two separate battery voltage and current ADC16 bits adC for battery voltage, battery temperature, UsB/sYs voltage senseo OCV algorithm combine with Coulom-counter algorithmReal time clock (rtc)o Audio SystemAudio codec: 24 bits for both adc and dacSupport single end or differential mode Micro-phone inputSupport real ground class-AB Pa to drive Head-phone, 32ohm LoadSupport class-D PA to drive speaker, 1.3W◆◆◆◆◆Support i2s as the digital signal interface for both dac and AdcSupport programmable digital and analog gainsSample rate 48KHZw 192KHzIntegrates internal PllSupport PDM mode(external input PClk)e Package: 7mmx7mm QFN68Copyright C2019 Fuzhou Rockchip Electronics Co. LtdRK809 DatasheetRev 141.3 Typical Application DiagramsAYYl叶‖Fig 1-1 RK809 Typical Application Diagram for no batteryCopyright C2019 Fuzhou Rockchip Electronics Co. Ltd10