EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX98090 Ultra-Low Power Stereo Audio Codec General Description Benefits and Features The MAX98090 is a fully integrated audio codec whose 102dB DR Stereo DAC to HP (8kHz < f < 96kHz) S high-performance, ultra-low power consumption and 3.6mW Stereo Playback Power Consumption small footprint make it ideal for portable applications. 99dB DR Stereo ADC (8kHz < f < 96kHz) S The device features a highly flexible input scheme with 4.2mW Stereo Record Power Consumption six input pins (WLP) that can be configured as analog or 3 Stereo Single-Ended/Differential Analog digital microphone inputs, differential or single-ended line Microphone/Line Inputs (WLP Version) inputs, or as full-scale direct differential inputs. Analog inputs can be routed to the record path ADC or directly to Stereo PDM Digital Microphone Input any analog output mixer. Master Clock Frequencies from 256 x f to 60MHz S The device accepts master clock frequencies of either 2 I S/LJ/RJ/TDM Digital Audio Interface 256 x f or from 10MHz to 60MHz. The digital audio inter- S FlexSound Technology Signal Processing face supports master or slave mode operation, sample Record Path Biquad Filter rates from 8kHz to 96kHz, and standard PCM formats Playback Path 7-Band Parametric EQ 2 such as I S, left/right-justified, and TDM. Playback Path Automatic Level Control The record/playback paths feature FlexSound technology Digital Filtering and Gain/Level Control DSP. This includes digital gain and filtering, a biquad filter Stereo Low EMI Class D Speaker Amplifiers (record), dynamic range control (playback), and a seven 3.2W/Channel (R = 4, V = 5V, WLP) L SPK VDD band parametric equalizer (playback) that can improve loud- 1.8W/Channel (R = 8, V = 5V, WLP) L SPK VDD speaker performance by optimizing the frequency response. Stereo DirectDrive Class H Headphone Amplifier The stereo Class D speaker amplifier provides efficient Jack Detection and Identification amplification, features low radiated emissions, supports Differential Receiver Amplifier/Stereo Line Output filterless operation, and can drive both 4 and 8 loads. Extensive Click-and-Pop Reduction Circuitry The DirectDrive stereo Class H headphone ampli- RF Immune Analog Inputs and Outputs fier provides a ground referenced output eliminating the need for large DC-blocking capacitors. The device also Programmable Microphone Bias includes a differential receiver (earpiece) amplifier that 2 I C Control Interface with Two Address Options can be reconfigured as a stereo single-ended line output. 49-Bump 0.4mm WLP and 40-Pin TQFN Packages Simplified Block Diagram 2 2 BATTERY 1.8V 1.2V I S/TDM I C STEREO DIGITAL STEREO LINE OUTPUT OR MICOPHONE CLASS AB AMPLIFIER DIGITAL POWER DIGITAL AUDIO CONTROL (SINGLE ENDED) LINE OUTPUT 1 MICROPHONE MANAGEMENT INTERFACE REGISTERS OR OR 2 SPEAKER LEFT MICROPHONE 1 OR CLASS D AMPLIFIER PREAMP/PGA (DIFFERENTIAL) RECEIVER/ ANALOG (DIFFERENTIAL) LINE INPUT FLEXSOUND DSP EARPIECE MICROPHONE DIGITAL BIQUAD FILTER SPEAKER LEFT MICROPHONE 2 (RECORD) PREAMP/PGA CLASS D AMPLIFIER 3 7-BAND PARAMETRIC OR (DIFFERENTIAL) (DIFFERENTIAL) EQUALIZER (PLAYBACK) 4 STEREO STEREO SPEAKER DYNAMIC RANGE CONTROL ANALOG LINE INPUT ADC DAC LEFT/RIGHT MICROPHONE (PLAYBACK) LINE INPUT A PGA SPEAKER RIGHT DIGITAL FILTERING (DIFFERENTIAL OR CLASS D AMPLIFIER DIGITAL GAIN/LEVEL SINGLE-ENDED) (DIFFERENTIAL) 5 OR CONTROL 6 ANALOG LINE INPUT LINE INPUT B PGA STEREO HEADPHONE MICROPHONE (DIFFERENTIAL OR CLASS H AMPLIFIER (SINGLE ENDED) SINGLE-ENDED) OR HEADPHONES JACK DETECTION CHARGE PUMP MAX98090 OR HEADSET 3-POLE (TRS) 4-POLE (TRRS) Ordering Information appears at end of data sheet. 19-6492 Rev 4 11/18MAX98090 Ultra-Low Power Stereo Audio Codec TABLE OF CONTENTS General Description ............................................................................ 1 Features and Benefits .......................................................................... 1 Simplified Block Diagram........................................................................ 1 Functional Diagram ............................................................................ 9 Absolute Maximum Ratings ..................................................................... 10 Package Thermal Characteristics ................................................................ 10 Electrical Characteristics ....................................................................... 10 Digital Filter Specifications...................................................................... 20 Digital Input/Output Characteristics ............................................................... 24 Input Clock Characteristics ..................................................................... 26 Digital Audio Interface Timing Characteristics....................................................... 27 2 I C Timing Characteristics ...................................................................... 29 Digital Microphone Timing Characteristics ......................................................... 30 Quiescent Power Consumption .................................................................. 31 Typical Operating Characteristics ................................................................ 37 Bump/Pin Configurations ....................................................................... 64 Bump/Pin Descriptions......................................................................... 66 Detailed Description........................................................................... 68 2 Device I C Register Map ....................................................................... 68 Software Reset............................................................................... 76 Power and Performance Management ............................................................ 77 Device Performance Configuration 77 Device Enable Configuration 78 Analog Audio Input Configuration ................................................................ 81 Analog Microphone Inputs 82 Analog Microphone Preamplifier and PGA . 83 Analog Microphone Bias Voltage . 84 Digital Microphone Inputs . 84 Digital Microphone Clock Configuration . 84 Digital Microphone Frequency Compensation . 86 Analog Line Inputs 89 Analog Line Input Mixers . 89 Analog Line Input PGAs . 90 Analog Input PGA to Analog Output Mixer 92 Analog Full-Scale Direct to ADC Mixer Inputs . 92 Audio Record Path ............................................................................ 93 Analog-to-Digital Converter (ADC) 94 ADC Functional Configuration . 94 Maxim Integrated 2 www.maximintegrated.com