Datasheet MAX98390 (Maxim)

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MAX98390 Boosted Class-D Amplifier with Integrated Dynamic Speaker Management General Description Benefits and Features
The MAX98390 is a high-efficiency mono Class-D DSM ● Integrated Speaker Current and Voltage Sense smart amplifier that features an integrated boost convert- Requires no External Components er, integrated Dynamic Speaker ManagementTM, and ● Integrated Programmable 10V Boost Converter FET scaling for higher-efficiency at low output power. • Bypass Mode The maximum boost converter output voltage is program- • Envelope Tracking mable from 6.5V to 10V in 0.125V increments from a bat- ● Integrated Dynamic Speaker Management tery voltage as low as 2.65V. The boost converter sup- • Thermal Protection ports bypass mode for lower quiescent current and im- • Excursion Protection proved mid-power efficiency as well as envelope tracking • Low-Frequency Extension which automatically adjusts the output voltage for maxi- • 8-Band Parametric Equalizer mum efficiency. The boosted supply efficiently delivers up • Dynamic Range Compression to 6.2W at 10% THD+N into a 4Ω load. • Perceptual Power Reduction Integrated IV sense and Dynamic Speaker Management • Debuzzer allows louder, fuller audio while protecting the speaker • Stereo Bass Management against damage and improving sound quality. ● Ultra-Low Noise Floor The PCM interface supports I2S, left-justified, and • 9μV Output Noise 16-channel TDM formats as a slave or master device with • 117dB Dynamic Range I2C control. Either BCLK or MCLK can be used as the in- ● Low Distortion—0.01% THD+N ternal clock source providing system level flexibility. ● Output Power at 1% THD+N Thermal and other status data can also be read from the • 5.1W into 8Ω, VVBAT = 4.3V I2C interface. • 5.1W into 4Ω, VVBAT = 4.3V Patented active emissions limiting edge rate and over- ● Output Power at 10% THD+N shoot control circuitry minimizes EMI and eliminates the • 6.2W into 8Ω, VVBAT = 4.3V need for output filtering found in traditional Class-D de- • 6.2W into 4Ω, VVBAT = 4.3V vices. ● System Efficiency A flexible brownout-detection engine (BDE) can be pro- • 82% at 1.2W into 8Ω, VVBAT = 3.7V grammed to initiate various current limiting, signal limiting, • 86% at 0.45W into 8Ω, VVBAT = 3.7V and clip functions to prevent dips in battery voltage. ● Dynamic Speaker Output FET Scaling Threshold, hysteresis, and attack-and-release rates are ● 2.65V to 5.5V Battery Voltage Range programmable. ● I2S/16-Channel TDM and I2C Interfaces The IC is available in a 0.4mm pitch, 36-bump wafer-level ● Class-D Edge Rate Control Enables Filterless package. It is specified over the extended -40°C to +85°C Operation temperature range. ● Advanced Brownout-Protection Engine ● Extensive Click-and-Pop Suppression
Applications
● Robust Short-Circuit and Thermal Protection ● Smartphones ● Space-Saving, 36-Bump WLP Package (6.3mm2, ● Tablets 0.4mm Pitch) ● Notebook Computers
Ordering Information appears at end of data sheet.
● Single Li-ion Cell Devices ● IoT Devices ● Toys Dynamic Speaker Management is a trademark of Maxim Integrated Products, Inc. 19-100540; Rev 1; 5/19 Document Outline General Description Applications Benefits and Features Simplified Block Diagram Absolute Maximum Ratings Package Information 36 WLP Electrical Characteristics Typical Operating Characteristics Pin Configuration 36 WLP Pin Description Functional Diagram MAX98390 Detailed Description Integrated Dynamic Speaker Management (DSM) DSM Sound Studio Thermal and Excursion Protection Low-Frequency Extension Perceptual Power Reduction (PPR) Stereo Bass Management Debuzzer Dynamic Range Compression Equalizer Reading and Writing DSM Registers Interrupts IRQ Pin Configuration Interrupt Sources Boost Converter Soft-Start Boost Output Undervoltage Lockout Boost Overvoltage Protection Programmable Boost Input Current Limit Boost-Clock Phase Boost-Skip Mode Supplying PVDD Externally Boost Envelope Tracker Automatic Boost Bypass Delay for Envelope Tracker and Automatic Boost Bypass Host Fault Handling Clock Monitor BCLK and LRCLK Rate Detection PCM Framing Error Detection Input Data Monitor Watchdog Timer Software Mode Hardware Mode PCM Interface PCM Master/Slave Modes and MCLK Interface Formats—All Modes PCM Clock Ratio Configuration I2S and Left-Justified Modes TDM Modes Invalid TDM Configurations PCM Data Path Configuration PCM Data Input PCM Data Output PCM Interface Timing Logic Output Pin Drive Strength Control Tone Generator Thermal Warning and Shutdown Minimum Valid Setup Thermal Thresholds Amplifier Path Controls Path Routing Control Power Gating and Auto Muting PCM Dither DAC Inversion DC Blocking Filter Digital Volume Control Dynamic Range Extension (DRE) DSP Monitor Class-D Amplifier Output Short-Circuit Detection Spread-Spectrum Modulation Output Sensing When Using Ferrite Beads Ultra-Low EMI Filterless Output Stage FET Scaling Current and Voltage Sense I/V Sense Channel Sharing Measurement ADC Brownout-Detection Engine (BDE) BDE Gain, Limit, and Clip Mirroring BDE Enable Control VBAT Measurement Brownout Controller Brownout Interrupts Limiter Gain Reduction Level 4 Mute Clipper Boost Input Current Limit Using Brownout Boost Input Current Limit to Avoid System Brownouts Interchip Communication ICC Operation and Data Format Multiamplifier Grouping Shutdown Modes Software Shutdown Software Reset Hardware Shutdown I2C Serial Interface Slave Address Bit Transfer START and STOP Conditions Early STOP Conditions Acknowledge Write Data Format Read Data Format I2C Register Map Control Bit Types and Write-Access Restrictions Register Map Register Map Register Details SOFTWARE RESET (0x2000) INTERRUPT RAW 1 (0x2002) INTERRUPT RAW 2 (0x2003) INTERRUPT RAW 3 (0x2004) INTERRUPT STATE 1 (0x2005) INTERRUPT STATE 2 (0x2006) INTERRUPT STATE 3 (0x2007) INTERRUPT FLAG 1 (0x2008) INTERRUPT FLAG 2 (0x2009) INTERRUPT FLAG 3 (0x200A) INTERRUPT ENABLE 1 (0x200B) INTERRUPT ENABLE 2 (0x200C) INTERRUPT ENABLE 3 (0x200D) INTERRUPT FLAG CLEAR 1 (0x200E) INTERRUPT FLAG CLEAR 2 (0x200F) INTERRUPT FLAG CLEAR 3 (0x2010) IRQ CONTROL (0x2011) CLOCK MONITOR CONTROL (0x2012) DATA MONITOR CONTROL (0x2014) WATCHDOG CONTROL (0x2015) WATCHDOG SW RESET (0x2016) MEAS ADC THERMAL WARNING THRESHHOLD (0x2017) MEAS ADC THERMAL SHUTDOWN THRESHHOLD (0x2018) MEAS ADC THERMAL HYSTERESIS (0x2019) PIN CONFIG (0x201A) PCM RX ENABLES A (0x201B) PCM RX ENABLES B (0x201C) PCM TX ENABLES A (0x201D) PCM TX ENABLES B (0x201E) PCM TX HIZ CONTROL A (0x201F) PCM TX HIZ CONTROL B (0x2020) PCM CHANNEL SOURCES 1 (0x2021) PCM CHANNEL SOURCES 2 (0x2022) PCM CHANNEL SOURCES 3 (0x2023) PCM MODE CONFIG (0x2024) PCM MASTER MODE (0x2025) PCM CLOCK SETUP (0x2026) PCM SAMPLE RATE SETUP 1 (0x2027) ICC RX ENABLES A (0x202C) ICC RX ENABLES B (0x202D) ICC TX ENABLES A (0x202E) ICC TX ENABLES B (0x202F) ICC HIZ MANUAL MODE (0x2030) ICC TX HIZ ENABLES A (0x2031) ICC TX HIZ ENABLES B (0x2032) ICC LINK ENABLES (0x2033) AMP DSP CONFIG (0x2039) AMP ENABLES (0x203A) TONE GENERATOR AND DC CONFIG (0x203B) SPEAKER SOURCE SELECT (0x203C) SSM CONFIGURATION (0x203E) MEASUREMENT ENABLES (0x203F) MEASUREMENT DSP CONFIG (0x2040) BOOST CONTROL 0 (0x2041) BOOST CONTROL 3 (0x2042) BOOST CONTROL 1 (0x2043) MEAS ADC CONFIG (0x2044) MEAS ADC BASE DIVIDE MSBYTE (0x2045) MEAS ADC BASE DIVIDE LSBYTE (0x2046) MEAS ADC CHAN 0 DIVIDE (0x2047) MEAS ADC CHAN 1 DIVIDE (0x2048) MEAS ADC CHAN 2 DIVIDE (0x2049) MEAS ADC CHAN 0 FILT CONFIG (0x204A) MEAS ADC CHAN 1 FILT CONFIG (0x204B) MEAS ADC CHAN 2 FILT CONFIG (0x204C) MEAS ADC CHAN 0 READBACK (0x204D) MEAS ADC CHAN 1 READBACK (0x204E) MEAS ADC CHAN 2 READBACK (0x204F) DSP POWER GATING CONTROL (0x2050) DSP POWER GATING STATUS (0x2051) VBAT LOWEST STATUS (0x2052) PVDD LOWEST STATUS (0x2053) BROWNOUT STATUS (0x2054) BROWNOUT ENABLES (0x2055) BROWNOUT LEVEL INFINITE HOLD (0x2056) BROWNOUT LEVEL INFINITE HOLD CLEAR (0x2057) BROWNOUT LEVEL HOLD (0x2058) BROWNOUT LEVEL 1 THRESHOLD (0x2059) BROWNOUT LEVEL 2 THRESHOLD (0x205A) BROWNOUT LEVEL 3 THRESHOLD (0x205B) BROWNOUT LEVEL 4 THRESHOLD (0x205C) BROWNOUT THRESHOLD HYSTERYSIS (0x205D) BROWNOUT AMP LIMITER ATTACK RELEASE (0x205E) BROWNOUT AMP GAIN ATTACK RELEASE (0x205F) BROWNOUT AMP1 CLIP MODE (0x2060) BROWNOUT LEVEL 1 CURRENT LIMIT (0x2061) BROWNOUT LEVEL 1 AMP 1 CONTROL 1 (0x2062) BROWNOUT LEVEL 1 AMP 1 CONTROL 2 (0x2063) BROWNOUT LEVEL 1 AMP 1 CONTROL 3 (0x2064) BROWNOUT LEVEL 2 CURRENT LIMIT (0x2065) BROWNOUT LEVEL 2 AMP 1 CONTROL 1 (0x2066) BROWNOUT LEVEL 2 AMP 1 CONTROL 2 (0x2067) BROWNOUT LEVEL 2 AMP 1 CONTROL 3 (0x2068) BROWNOUT LEVEL 3 CURRENT LIMIT (0x2069) BROWNOUT LEVEL 3 AMP 1 CONTROL 1 (0x206A) BROWNOUT LEVEL 3 AMP 1 CONTROL 2 (0x206B) BROWNOUT LEVEL 3 AMP 1 CONTROL 3 (0x206C) BROWNOUT LEVEL 4 CURRENT LIMIT (0x206D) BROWNOUT LEVEL 4 AMP 1 CONTROL 1 (0x206E) BROWNOUT LEVEL 4 AMP 1 CONTROL 2 (0x206F) BROWNOUT LEVEL 4 AMP 1 CONTROL 3 (0x2070) BROWNOUT LOWEST STATUS (0x2071) BROWNOUT ILIM HOLD (0x2072) BROWNOUT LIM HOLD (0x2073) BROWNOUT CLIP HOLD (0x2074) BROWNOUT GAIN HOLD (0x2075) ENV TRACKER VOUT HEADROOM (0x2076) ENV TRACKER BOOST VOUT DELAY (0x2077) ENV TRACKER RELEASE RATE (0x2078) ENV TRACKER HOLD RATE (0x2079) ENV TRACKER CONTROL (0x207A) ENV TRACKER BOOST VOUT READBACK (0x207B) BOOST BYPASS 1 (0x207C) BOOST BYPASS 2 (0x207D) BOOST BYPASS 3 (0x207E) FET SCALING 1 (0x207F) FET SCALING 2 (0x2080) FET SCALING 3 (0x2081) FET SCALING 4 (0x2082) ADVANCED SETTINGS (0x2084) DSM_EQ_BQ1_B0_BYTE0 (0x2129) DSM_EQ_BQ1_B0_BYTE1 (0x212A) DSM_EQ_BQ1_B0_BYTE2 (0x212B) DSM_EQ_BQ1_B1_BYTE0 (0x212D) DSM_EQ_BQ1_B1_BYTE1 (0x212E) DSM_EQ_BQ1_B1_BYTE2 (0x212F) DSM_EQ_BQ1_B2_BYTE0 (0x2131) DSM_EQ_BQ1_B2_BYTE1 (0x2132) DSM_EQ_BQ1_B2_BYTE2 (0x2133) DSM_EQ_BQ1_A1_BYTE0 (0x2135) DSM_EQ_BQ1_A1_BYTE1 (0x2136) DSM_EQ_BQ1_A1_BYTE2 (0x2137) DSM_EQ_BQ1_A2_BYTE0 (0x2139) DSM_EQ_BQ1_A2_BYTE1 (0x213A) DSM_EQ_BQ1_A2_BYTE2 (0x213B) DSM_EQ_BQ2_B0_BYTE0 (0x213D) DSM_EQ_BQ2_B0_BYTE1 (0x213E) DSM_EQ_BQ2_B0_BYTE2 (0x213F) DSM_EQ_BQ2_B1_BYTE0 (0x2141) DSM_EQ_BQ2_B1_BYTE1 (0x2142) DSM_EQ_BQ2_B1_BYTE2 (0x2143) DSM_EQ_BQ2_B2_BYTE0 (0x2145) DSM_EQ_BQ2_B2_BYTE1 (0x2146) DSM_EQ_BQ2_B2_BYTE2 (0x2147) DSM_EQ_BQ2_A1_BYTE0 (0x2149) DSM_EQ_BQ2_A1_BYTE1 (0x214A) DSM_EQ_BQ2_A1_BYTE2 (0x214B) DSM_EQ_BQ2_A2_BYTE0 (0x214D) DSM_EQ_BQ2_A2_BYTE1 (0x214E) DSM_EQ_BQ2_A2_BYTE2 (0x214F) DSM_EQ_BQ3_B0_BYTE0 (0x2151) DSM_EQ_BQ3_B0_BYTE1 (0x2152) DSM_EQ_BQ3_B0_BYTE2 (0x2153) DSM_EQ_BQ3_B1_BYTE0 (0x2155) DSM_EQ_BQ3_B1_BYTE1 (0x2156) DSM_EQ_BQ3_B1_BYTE2 (0x2157) DSM_EQ_BQ3_B2_BYTE0 (0x2159) DSM_EQ_BQ3_B2_BYTE1 (0x215A) DSM_EQ_BQ3_B2_BYTE2 (0x215B) DSM_EQ_BQ3_A1_BYTE0 (0x215D) DSM_EQ_BQ3_A1_BYTE1 (0x215E) DSM_EQ_BQ3_A1_BYTE2 (0x215F) DSM_EQ_BQ3_A2_BYTE0 (0x2161) DSM_EQ_BQ3_A2_BYTE1 (0x2162) DSM_EQ_BQ3_A2_BYTE2 (0x2163) DSM_EQ_BQ4_B0_BYTE0 (0x2165) DSM_EQ_BQ4_B0_BYTE1 (0x2166) DSM_EQ_BQ4_B0_BYTE2 (0x2167) DSM_EQ_BQ4_B1_BYTE0 (0x2169) DSM_EQ_BQ4_B1_BYTE1 (0x216A) DSM_EQ_BQ4_B1_BYTE2 (0x216B) DSM_EQ_BQ4_B2_BYTE0 (0x216D) DSM_EQ_BQ4_B2_BYTE1 (0x216E) DSM_EQ_BQ4_B2_BYTE2 (0x216F) DSM_EQ_BQ4_A1_BYTE0 (0x2171) DSM_EQ_BQ4_A1_BYTE1 (0x2172) DSM_EQ_BQ4_A1_BYTE2 (0x2173) DSM_EQ_BQ4_A2_BYTE0 (0x2175) DSM_EQ_BQ4_A2_BYTE1 (0x2176) DSM_EQ_BQ4_A2_BYTE2 (0x2177) DSM_EQ_BQ5_B0_BYTE0 (0x2179) DSM_EQ_BQ5_B0_BYTE1 (0x217A) DSM_EQ_BQ5_B0_BYTE2 (0x217B) DSM_EQ_BQ5_B1_BYTE0 (0x217D) DSM_EQ_BQ5_B1_BYTE1 (0x217E) DSM_EQ_BQ5_B1_BYTE2 (0x217F) DSM_EQ_BQ5_B2_BYTE0 (0x2181) DSM_EQ_BQ5_B2_BYTE1 (0x2182) DSM_EQ_BQ5_B2_BYTE2 (0x2183) DSM_EQ_BQ5_A1_BYTE0 (0x2185) DSM_EQ_BQ5_A1_BYTE1 (0x2186) DSM_EQ_BQ5_A1_BYTE2 (0x2187) DSM_EQ_BQ5_A2_BYTE0 (0x2189) DSM_EQ_BQ5_A2_BYTE1 (0x218A) DSM_EQ_BQ5_A2_BYTE2 (0x218B) DSM_EQ_BQ6_B0_BYTE0 (0x218D) DSM_EQ_BQ6_B0_BYTE1 (0x218E) DSM_EQ_BQ6_B0_BYTE2 (0x218F) DSM_EQ_BQ6_B1_BYTE0 (0x2191) DSM_EQ_BQ6_B1_BYTE1 (0x2192) DSM_EQ_BQ6_B1_BYTE2 (0x2193) DSM_EQ_BQ6_B2_BYTE0 (0x2195) DSM_EQ_BQ6_B2_BYTE1 (0x2196) DSM_EQ_BQ6_B2_BYTE2 (0x2197) DSM_EQ_BQ6_A1_BYTE0 (0x2199) DSM_EQ_BQ6_A1_BYTE1 (0x219A) DSM_EQ_BQ6_A1_BYTE2 (0x219B) DSM_EQ_BQ6_A2_BYTE0 (0x219D) DSM_EQ_BQ6_A2_BYTE1 (0x219E) DSM_EQ_BQ6_A2_BYTE2 (0x219F) DSM_EQ_BQ7_B0_BYTE0 (0x21A1) DSM_EQ_BQ7_B0_BYTE1 (0x21A2) DSM_EQ_BQ7_B0_BYTE2 (0x21A3) DSM_EQ_BQ7_B1_BYTE0 (0x21A5) DSM_EQ_BQ7_B1_BYTE1 (0x21A6) DSM_EQ_BQ7_B1_BYTE2 (0x21A7) DSM_EQ_BQ7_B2_BYTE0 (0x21A9) DSM_EQ_BQ7_B2_BYTE1 (0x21AA) DSM_EQ_BQ7_B2_BYTE2 (0x21AB) DSM_EQ_BQ7_A1_BYTE0 (0x21AD) DSM_EQ_BQ7_A1_BYTE1 (0x21AE) DSM_EQ_BQ7_A1_BYTE2 (0x21AF) DSM_EQ_BQ7_A2_BYTE0 (0x21B1) DSM_EQ_BQ7_A2_BYTE1 (0x21B2) DSM_EQ_BQ7_A2_BYTE2 (0x21B3) DSM_EQ_BQ8_B0_BYTE0 (0x21B5) DSM_EQ_BQ8_B0_BYTE1 (0x21B6) DSM_EQ_BQ8_B0_BYTE2 (0x21B7) DSM_EQ_BQ8_B1_BYTE0 (0x21B9) DSM_EQ_BQ8_B1_BYTE1 (0x21BA) DSM_EQ_BQ8_B1_BYTE2 (0x21BB) DSM_EQ_BQ8_B2_BYTE0 (0x21BD) DSM_EQ_BQ8_B2_BYTE1 (0x21BE) DSM_EQ_BQ8_B2_BYTE2 (0x21BF) DSM_EQ_BQ8_A1_BYTE0 (0x21C1) DSM_EQ_BQ8_A1_BYTE1 (0x21C2) DSM_EQ_BQ8_A1_BYTE2 (0x21C3) DSM_EQ_BQ8_A2_BYTE0 (0x21C5) DSM_EQ_BQ8_A2_BYTE1 (0x21C6) DSM_EQ_BQ8_A2_BYTE2 (0x21C7) DSMIG WB DRC RELEASE TIME 1 (0x2380) DSMIG WB DRC RELEASE TIME 2 (0x2381) DSMIG WB DRC ATTACK TIME 1 (0x2382) DSMIG WB DRC ATTACK TIME 2 (0x2383) DSMIG WB DRC COMPRESSION RATIO (0x2384) DSMIG WB DRC COMPRESSION THRESHOLD (0x2385) DSMIG WB DRC MAKEUPGAIN (0x2386) DSMIG WB DRC NOISE GATE THRESHOLD (0x2387) DSMIG WBDRC HPF ENABLE (0x2388) DSMIG PPR THRESHOLD (0x238B) DSM TPROT THRESHOLD BYTE 0 (0x238E) DSM TPROT THRESHOLD BYTE 1 (0x238F) DSM TPROT ROOM TEMPERATURE BYTE0 (0x2390) DSM TPROT ROOM TEMPERATURE BYTE 1 (0x2391) DSM TPROT RECIP RDC ROOM BYTE0 (0x2392) DSM TPROT RECIP RDC ROOM BYTE1 (0x2393) DSM TPROT RECIP RDC ROOM BYTE2 (0x2394) DSM TPROT RECIP TCONST BYTE0 (0x2395) DSM TPROT RECIP TCONST BYTE1 (0x2396) DSM TPROT RECIP TCONST BYTE2 (0x2397) DSM TPROT ATTENUATION SETTINGS (0x2398) DSM TPROT PG TEMP THRESH BYTE0 (0x239A) DSM TPROT PG TEMP THRESH BYTE1 (0x239B) THERMAL RESISTANCE RD BACK BYTE1 (0x239C) THERMAL RESISTANCE RD BACK BYTE0 (0x239D) DSMIG EXCURSION PROTECTION RELEASE TIME BYTE 0 (0x23A4) DSMIG EXCURSION PROTECTION RELEASE TIME BYTE 1 (0x23A5) DSMIG EXCURSION PROTECTION THRESHOLD (0x23A6) DSMIG EXCURSION PROTECTION DEL BUFFER (0x23A7) DSMIG DEBUZZER THRESHOLD (0x23B5) DSM VOL ENA (0x23B9) DSM_VOL_CTRL (0x23BA) DSMIG ENABLES (0x23E0) DSP GLOBAL ENABLE (0x23E1) DSM_THERMAL_GAIN (0x23F0) DSM_PPR_GAIN (0x23F1) DSM_DBZ_GAIN (0x23F2) DSM_WBDRC_GAIN (0x23F3) GLOBAL ENABLE (0x23FF) REV ID (0x24FF) Applications Information Boost Converter Component Selection Battery Input Capacitor Selection Boost Inductor Selection (L1) Power Amplifier Supply Bypass Capacitors (CPVDD) Boost Converter Settings Startup Sequence Shutdown Sequence Recommended External Components Typical Application Circuit MAX98390 Ordering Information Revision History