NAU88L25YGB

NAU88L25B Ultra-Low Power Audio CODEC for Headphone/Headsets Application With 124dB Class G Headphone Drive and Advanced Headset Features Description The NAU88L25B® is an Ultra-Low-Power High-Performance Audio CODEC Ground-Referenced Headphone Amplifier with Advanced Headset Detection. The single-chip solution with microphone and ground detection and switching capabilities is designed for smartphones, tablets, Personal Computers (PCs), and other portable devices that support both analog and digital audio functions. The NAU88L25B is a cost-optimized solution for audio jack applications that benefit from enhanced audio quality and more integrated detection and suppression functions. Additionally, when used in combination with the Nuvoton NuMicro® NUC123, an ARM® Cortex MO-based microprocessor, the NAU88L25B Audio CODEC provides an easy-to-implement design solution for USB headphones. The highly-integrated NAU88L25B features one I2S/PCM Interface, one digital mixer, two high-quality audio Digital-to-Analog Converters (DACs), one high-quality audio Analog-to-Digital Converter (ADC), one monophonic differential analog microphone input, two analog single-ended microphone inputs, and one stereophonic Class G headphone amplifier with automatic headset detection. After automatically detecting which type of headset is in use—Stereo headphone, Nokia-type headsets, or Apple-type headsets—the NAU88L25B switches internal connections to support the appropriate format. The advanced on-chip Digital Signal Processing (DSP) engine includes a Dynamic Range Compressor (DRC), and Programmable Bi-Quad Filters for various types of filters to optimize audio quality and eliminate undesirable frequency components.The NAU88L25B Audio CODEC provides comprehensive headset detection features that support jack insertion/ejection, microphone detection, distinct key / short key / long key / key release detection and Crosstalk detection/suppression. The chip also provides an integrated Frequency Locked Loop (FLL) to support various clocks. The NAU88L25 operates with analog supply voltages from 1.6V to 1.8V, while the digital core can operate from 1.1V to 1.98V to conserve power. The NAU88L25 is specified for operation from -40°C to +85°C, and is available in QFN 32 or CSP package with 0.4mm pitch. Features        DAC with auto attenuate : 124dB SNR; without auto mute: 113dB SNR, (A-weighted) @ 0dB gain, 1.8V and -89dB THDN @ 20mW and RL= 32Ω, DAC playback to headphone output mode ADC : 101dB SNR (A-weighted) @ 0dB MIC gain, 1.8V, Fs = 48kHz and -91dB THD , 1.8V, MIC gain 0dB, OSR 128x One Digital I2S/PCM I/O port Dynamic Range Compressor (DRC) Programmable Biquad filter One Headset Mic: One Differential Analog Mic input, Line-input or two single-ended Mic input One Class G Stereo Headphone Amplifier(28mW @ 32Ω, 1% THD+N) NAU88L25B Product Brief Rev 1.0 Page 1 of 16      Sampling rate from 8K to 192 KHz Autonomous Headset Microphone & Ground Detection and Switching Jack Insertion and Ejection Detection Distinct Keys Detection Package : 32 Pin QFN package, and 42 Balls WLCSP with 0.4mm Pitch Applications      Ultra-Portable Laptop Mobile Device Wireless or USB Headphone Smart Remote Controller Gaming Controller Aug 19, 2016 Block Diagram The NAU88L25B Audio CODEC is available in a QFN 32-Lead package and, in a WLCSP 42-Ball package, as shown in Figure 1 and Figure 2, respectively. VREF Charge Pump ADC Effect ADC MIC1- Volume DRC BiQuad MICBIAS GND Switch Mixers Sidetone DAC Effect DAC HPL(JKTIP) Volume DRC BiQuad DAC HPR(JKR1) ADC FLL I2S/PCM I2C Slave & Registers • • • • • • Headset Detection Jack Insertion / Ejection MIC Detection Button Detection Speaker Impedance Crosstalk Suppression Auto MIC/GND Swap SCLK SDIO CPIO1/CSB IRQ FS DACIN ADCOUT Jack Detection MCLK JKDET Digital Audio Effects BCLK JKR2 VSSMIC JKSLV CPOUTP VSSCP CPOUTN)x2) CPCB CPCA BIAS MIC1+ MICBIAS VDDMIC VSSA VDDA(2) VSSD VDDB VDDC Figure 1: NAU88L25B Block Diagram for 32-Lead QFN Package VREF Charge Pump ADC ADC Effect Digital Audio Effects Volume DRC BiQuad Mixers Sidetone MIC1- Volume DRC BiQuad DAC ADC FLL I2S/PCM I2C Slave & Registers GPIO4 SCLK SDIO IFSEL CPIO1/CSB IRQ GND Switch DAC BCLK FS DACIN ADCOUT JKDET1 JKDET2 MICBIAS DAC Effect MCLK JKR2 JKR2FB VSSMIC JKSLV JKSLVFB CPOUTP(x2) VSSCP CPOUTN)x2) CPCB CPCA BIAS MIC1+ MICBIAS VDDMIC VSSA VDDA(2) VSSD VDDB VDDC Figure 2: NAU88L25B Block Diagram for 42-Ball WLCSP Package Jack Detection NAU88L25B Product Brief Rev 1.0 Page 2 of 16 HPL(JKTIP) HPR(JKR1) Headset Detection • Jack Insertion / Ejection • MIC Detection • Button Detection • Speaker Impedance • Crosstalk Suppression • Auto MIC/GND Swap Aug 19, 2016 Pin Diagram Figure 3 and 4 shows the pin diagram of QFN 32-Lead and WLCSP 42 ball package respectively. Figure 3: NAU88L25B Pin Diagram for 32-Lead QFN Package VDDA DACIN BCLK GPIO2/JKDET JKSLV VSSMIC JKR2 MIC+ MIC- 32 25 1 24 ADCOUT MICBIAS FS VDDMIC VDDC VREF VSSD Top View VSSA VDDB VDDA MCLK CPOUTP SCLK VSSCP 8 17 9 16 GPIO1/CSB IRQ CPOUTN Page 3 of 16 JKR1(HPR) JKTIP(HPL) CPCA CPCB CPOUTN NAU88L25B Product Brief Rev 1.0 SDIO Aug 19, 2016 Figure 4: NAU88L25B Pin Diagram for 42-Ball WLCSP Package 6 5 4 3 2 1 JKSLVFB BCLK DACIN A JKSLV JK DET1 ADC OUT FS B MIC+ VDD MIC JK DET2 NC VDDC C VREF VSSA MIC DET NC IFSEL VSSD D VDDA VSSCP NC GPIO4 VDDB MCLK E CP OUTP CP OUTP CPCA HPR GPIO1 SCLK F CP OUTN CPCB HPL CP OUTN IRQ SDIO G JKR2 JKR2FB VDDA MIC- MIC BIAS VSSA Bottom View NAU88L25B Product Brief Rev 1.0 Page 4 of 16 Aug 19, 2016 Pin Descriptions Pin Descriptions for the NAU88L25B are shown in Table 1 and Table 2 by package type. Table 1 Pin Descriptions for 32-Lead QFN Pin # Name Type Functionality 1 VDDA Supply Analog Supply 2 MICBIAS Analog Output Microphone Bias Output 3 VDDMIC Supply Microphone Supply 4 VREF Analog I/O Internal DAC & ADC Voltage Reference Decoupling I/O 5 VSSA Ground Analog Supply Ground 6 VDDA Supply Analog Supply 7 CPOUTP Analog I/O Charge Pump Positive Voltage 8 VSSCP Ground Charge Pump Supply Ground 9 CPOUTN Analog I/O Charge Pump Negative Voltage 10 CPCB Analog I/O Charge Pump Switching Capacitor Node B 11 CPCA Analog I/O Charge Pump Switching Capacitor Node A 12 JKTIP(HPL) Analog Output Jack Tip; Headphone Left Channel Output 13 JKR1(HPR) Analog Output Jack Ring 1; Headphone Right Channel Output 14 CPOUTN Analog I/O Charge Pump Negative Voltage 15 IRQ Digital Output Programmable Interrupt Output 16 GPIO1 Digital I/O General Purpose I/O/I2C Address 17 SDIO Digital I/O Serial Data for I2C 18 SCLK Digital Input Serial Data Clock for I2C 19 MCLK Digital Input CODEC Master Clock Input 20 VDDB Supply Digital IO Supply 21 VSSD Ground Digital IO Ground 22 VDDC Supply Digital Core Supply 23 FS Digital I/O Frame Sync Input or Output for I2S or PCM Data 24 ADCOUT Digital Output Serial Audio Data Output for I2S or PCM Data 25 DACIN Digital Input Serial Audio Data Input for I2S or PCM Data 26 BCLK Digital I/O Serial Data Bit Clock Input or Output for I2S or PCM Data 27 JKDET Analog Input Jack Detect Input 28 JKSLV Analog I/O Jack Sleeve; Headset Jack Pin 4 29 VSSMIC Ground Analog Supply Ground 30 JKR2 Analog I/O Jack Ring 2; Headset Jack Pin 3 31 MIC+ Analog Input PGA MIC+ Analog Input 32 MIC- Analog Input PGA MIC- Analog Input NAU88L25B Product Brief Rev 1.0 Page 5 of 16 Aug 19, 2016 Table 2 Pin Descriptions 42-Ball WLCSP Pin # Name Type Functionality A1 DACIN Digital Input Serial Audio Data Input for I2S or PCM Data A2 BCLK Digital I/O Serial Data Bit Clock Input or Output for I2S or PCM Data A3 JKSLVFB Analog I Jack Sleeve Feedback Sense Input A4 VSSA Ground Analog Supply Ground A5 JKR2FB Analog I JackRing 2 Feedback Sense Input A6 JKR2 Analog I/O JackRing 2 Jack Terminal B1 FS Digital I/O Frame Sync Input or Output for I2S or PCM Data B2 ADCOUT Digital Output Serial Audio Data Output for I2S or PCM Data B3 JKDET1 Analog Input Jack Detect Input B4 JKSLV Analog I/O Jack Sleeve Jack Terminal B5 MIC- Analog Input PGA MIC- Analog Input B6 VDDA Supply Analog Supply C1 VDDC Supply Digital Core Supply C2 NC No Connect This pin should remain not connected C3 JKDET2 Analog Input Jack Detect Input C4 VDDMIC Supply Microphone Supply C5 MIC+ Analog Input PGA MIC+ Analog Input C6 MICBIAS Analog Output Microphone Bias Output D1 VSSD Ground Analog Supply Ground D2 IFSEL Digital Input I2C/SPI Interface selection D3 NC No Connect This pin should remain not connected D4 MICDET Analog I/O Microphone Signal and SAR ADC Input D5 VSSA Ground Analog Supply Ground D6 VREF Analog I/O Internal DAC & ADC Voltage Reference Decoupling I/O E1 MCLK Digital Input CODEC Master Clock Input E2 VDDB Supply Digital IO Supply E3 GPIO4 Digital Output Serial Data Output for SPI Data E4 NC No Connect This pin should remain NOT CONNECTED E5 VSSCP Ground Charge Pump Supply Ground E6 VDDA Supply Analog Supply F1 SCLK Digital Input Serial Data Clock for I2C F2 GPIO1 Digital I/O General Purpose Input Output/I2C Address F3 JKR1(HPR) Analog Output Jack Ring 1; Headphone Right Channel Output F4 CPCA Analog I/O Charge Pump Switching Capacitor Node A F5 CPOUTP Analog I/O Charge Pump Positive Voltage F6 CPOUTP Analog I/O Charge Pump Positive Voltage G1 SDIO Digital I/O Serial Data for I2C NAU88L25B Product Brief Rev 1.0 Page 6 of 16 Aug 19, 2016 Pin # Name Type Functionality G2 IRQ Digital Output Programmable Interrupt Output G3 CPOUTN Analog I/O Charge Pump Negative Voltage G4 JKTIP(HPL) Analog Output Jack Tip; Headphone left channel output G5 CPCB Analog I/O Charge Pump Switching Capacitor Node B G6 CPOUTN Analog I/O Charge Pump Negative Voltage Note: Analog I/O supply is VDDA; Digital I/O supply is VDDB. NAU88L25B Product Brief Rev 1.0 Page 7 of 16 Aug 19, 2016 Electrical Characteristics Absolute Maximum Ratings Table 3 provides the absolute maximum ratings for the NAU88L25B Audio CODEC. CAUTION: Do not operate at or near maximum ratings extended periods. Stresses above those listed in Table 3 may cause permanent damage to the device. Exposure to conditions beyond these ratings may adversely affect the life and reliability of the device and result in failures not covered by warranty. Table 3 Absolute Maximum Ratings Parameter Min Max Units Junction Temperature, TJ -40 +150 °C Storage Temperature -65 +150 °C Analog Supply Range -0.3 2.2 V Digital I/O Supply Range -0.3 6.0 V Digital Supply Range -0.3 2.2 V Input Voltage Digital Range DGND - 0.3 VDD + 0.3 V Input Voltage Analog Range AGND - 0.3 VDD + 0.3 V Headphone Supply Range -0.3 2.2 V Microphone Bias Supply Voltage -0.3 6.0 V Operating Conditions Table 4 provides the recommended operating conditions for the NAU88L25B. Table 4 Operating Conditions Condition Symbol Min Typical Max Units Analog Supply Range VDDA 1.6 1.8 2.0 V Digital Supply Range VDDC 1.1 1.2 1.98 V Digital Supply Range for FLL Operation and for Fs> 48 KHz VDDC 1.61 1.8 1.98 V Digital I/O Supply Range VDDB 1.6 1.8 3.6 V Headphone Supply Range VDDA 1.6 1.8 2.0 V Microphone Bias Supply Voltage VDDMIC 2.5 4.2 5.0 V Temperature Range TA -40 +85 °C QFN Package Junction to Ambient ƞ˚ja 33.1 °C/W Junction to Case ƞ˚jc 3.1 °C/W NAU88L25B Product Brief Rev 1.0 Page 8 of 16 Aug 19, 2016 Shutdown and Standby Current Table 5 provides Shutdown and Standby currents. Table 5 Shutdown and Standby Current Parameter Shutdown Current Standby Current Symbol ISD IDD Conditions Typical Limit VDDA in Shutdown Mode 0.2 1 VDDA When VDDC=1.2 V 17.2 VDDB 0.2 1 VDDC 2 10 VDDMIC 0.2 1 MCLK off, Jack Insertion, IRQ enabled 5 Units µA µA ADC Characteristics Table 6 provides the ADC electrical characteristics for the NAU88L25B Audio CODEC. Conditions: VDDA = VDDB = VDDC = 1.8 V; VDDMIC= 4.2 V. RL(Headphone) = 32 Ω, f = 1 kHz, MCLK=12.88 MHz, unless otherwise specified. Limits apply for TA = 25° C. Table 6 ADC Electrical Characteristics Parameter ADC Total Harmonic Distortion + Noise Signal-to-Noise Ratio Symbol THD+N SNR Conditions Typical Limit Units MIC Input, MIC_GAIN = 0 dB, VIN = 0.8 Vrms, f = 1 KHz, fs = 48 KHz, Mono Differential Input -91 dB MIC Input, MIC_GAIN = 30 dB, Volume = 0 dB, VIN = 28.5 Vrms, fs = 1 k, Digital Gain = 0 dB, Mono Differential Input -80 dB Reference = VOUT(0dBFS), A-Weighted, MIC Input, MIC Gain = 0 dB,fs = 8 KHz, Mono Differential Input 101 dB Reference = VOUT(0 dB FS), A-Weighted, MIC Input, MIC Gain = 6 dB,fs = 8 KHz, Mono Differential Input 98 dB Power Supply Rejection Ratio PSRR VRIPPLE = 200 mVPP applied to VDDA, fRIPPLE = 217 Hz, Input Referred, MIC_GAIN = 0 dB Differential Input 78 dB Common Mode Rejection Ratio CMRR Differential Input 100 Vrms, PGA Gain = 20 dB, frequency sweep from 20 Hz to 20 KHz 64 dB ADC Full Scale Input Level FSADC VDDA= 1.8 V 1 VRMS 12 KOhm Minimum Input Impedance NAU88L25B Product Brief Rev 1.0 Page 9 of 16 Aug 19, 2016 Parameter Symbol Conditions Typical Limit Units Frequency Response f = 20 Hz ~ 20 KHz +/-0.02 dB Power Consumption No Load, No Signal, ADC on, PGA on; fs = 44.1 kHz 5.4 mW Headphone Amplifier Characteristics Table 7 provides the headphone amplifier electrical characteristics for the NAU88L25B. Conditions: VDDA = VDDB = VDDC = 1.8 V; VDDMIC= 4.2 V. RL(Headphone) = 32 Ω, f = 1 kHz, MCLK=12.88 MHz, unless otherwise specified. Limits apply for TA = 25° C. Table 7 Headphone Amplifier Electrical Characteristics Parameter Symbol Output Power 32-Lead QFN Package PO Output Power 42-Ball WLCSP Package Total Harmonic Distortion + Noise Signal to Noise Ratio THD+N SNR NAU88L25B Product Brief Rev 1.0 Conditions Typical Limit Units Stereo RL = 16 Ω, DAC Input, CPVDD = 1.8 V, f = 1 kHz, 22 kHz BW, THD+N = 1% w. Headset Switch 35 mW Stereo RL = 32 Ω, DAC Input, CPVDD = 1.8 V, f = 1 kHz, 22 kHz BW, THD+N = 1%, w. Headset Switch 28 mW Stereo RL = 16Ω, DAC Input, CPVDD = 1.8 V, f = 1 kHz, 22 kHz BW, THD+N = 1%, w. Headset Switch 39.5 mW Stereo RL = 32 Ω, DAC Input, CPVDD= 1.8 V, f = 1 kHz, 22 kHz BW, THD+N = 1%, w. Headset Switch 30.5 mW RL = 32 Ω, f=1 kHz, PO = 20 mW, w. Headset Switch -89 dB VOUT = 1 VRMS, DAC Input, DAC_Gain = 0 dB, HP_Gain = 0 dB, Digital Zero Input, f = 1 kHz, A-Weighted, w. Headset Switch 113 dB VOUT = 1 VRMS, DAC Input, DAC_Gain = 0 dB, HP_Gain = 0 dB, Digital Zero Input, f = 1 kHz, A-Weighted, Auto Mute Enabled, w. Headset Switch 124 dB Page 10 of 16 Aug 19, 2016 Parameter Symbol Conditions Typical Limit Units fRIPPLE = 217 Hz, VRIPPLE = 200 mVP_P Input Referred, HP_GAIN = 0 dB DAC Input, DAC_Gain = 0 dB Ripple Applied to VDDA 81 dB Left Channel to Right Channel, -1 dB FS, Gain = 0 dB, f = 1 kHz, MIC/GND Switching Off without HCS 88 dB Left Channel to Right Channel, -1 dB FS, Gain = 0 dB, f = 1 kHz, MIC/GND Switching On with HCS (QFN) 91 dB Left Channel to Right Channel, -1 dB FS, Gain = 0 dB, f = 1 kHz, MIC/GND Switching On with HCS (WLCSP) 98 dB Interchannel Level Mismatch Headphone Right and Left Channel Difference with 0 dB FS Input Sweep from 20 Hz to 20 KHz +/- 0.1 dB Frequency Response F = 20 Hz ~ 20 KHz +/-0.005 dB Output Noise DAC_Gain = 0 dB, HP_Gain = 0 dB, fS=48 kHz, OSRDAC = 128, A-Weighted 2.2 µVRMS BW= 400 Hz to 500 KHz -86 dB HP_Gain = 0 dB, DAC_Gain= 0 dB, DAC Input 0.1 Power Consunption No Load, No Signal, Amp on fS = 48 kHz, Stereo DAC On, Amp On, POUT = 0 mW. RL = 32 Ω 5.7 mW Pop-and-Click Noise Into or out of DAC to Headphone Shutdown, Headphone Impedance & Crosstalk Detection Disabled .1 mVrms ON Resistance between JKR2 and GND or JKSLV and GND (QFN) .09 Ohm ON Resistance between JKR2 and GND or JKSLV and GND (WLCSP) 0.075 Ohm Power Supply Rejection Ratio Channel Crosstalk PSRR XTALK eOS Out-of-Band Noise Level Output Offset Voltage VOS Ground Switch ON Resistance NAU88L25B Product Brief Rev 1.0 Page 11 of 16 ±0.5 mV Aug 19, 2016 Digital I/O Characteristics Table 8 provides the headphone amplifier electrical characteristics for the NAU88L25B. Conditions: VDDA = VDDB = VDDC = 1.8 V; VDDMIC= 4.2 V. RL(Headphone) = 32 Ω, f = 1 kHz, MCLK=12.88 MHz, unless otherwise specified. Limits apply for TA = 25° C. Table 8 Digital I/O Characteristics Parameter Symbol Comments/Conditions Max VDDB = 1.8 V 0.33* VDDB VDDB = 3.3 V 0.37**VDDB Input LOW Level VIL Input HIGH Level VIH Output HIGH Level VOH ILoad= 1mA Output LOW Level VOL ILoad= 1mA NAU88L25B Product Brief Rev 1.0 Min VDDB = 1.8 V 0.67* VDDB VDDB = 3.3 V 0.63* VDDB VDDB = 1.8 V 0.9* VDDB VDDB = 3.3 V 0.95* VDDB V V V VDDB = 1.8 V 0.1* VDDB VDDB =3.3 V 0.05* VDDB Page 12 of 16 Units V Aug 19, 2016 Ordering Information Table 9 provides dimensions and packaging information for the NAU88L25B Audio CODECs. Table 9 Ordering Information Part Number Dimension Package Package Material NAU88L25YGB 5 x 5 mm QFN-32 Lead Green NAU88L25VGB 2.552 x 2.915 mm WLCSP 42-Balls Green NAU88L25 = Part Name L = Low-Power Product Lead-Free (Green) Packaging: YG = indicates QFN packaging VG = indicates WLCSP packaging WLCSP B = Chip Revision NAU88L25B Product Brief Rev 1.0 Page 13 of 16 Aug 19, 2016 Package Information QFN 32-Lead Package QFN32L 5X5 mm2, Thickness 0.8 mm (Max) , Pitch 0.5 mm (Saw Type) EP SIZE 3.5 X 3.5 mm. Figure 5 QFN 32-Lead Package NAU88L25B Product Brief Rev 1.0 Page 14 of 16 Aug 19, 2016 WLCSP 42-Ball Package WLCSP 42-Balls package, 2.552 x 2.915 mm, with 0.4 mm Pitch. Figure 6 WLCSP 42-Ball Package NAU88L25B Product Brief Rev 1.0 Page 15 of 16 Aug 19, 2016 Revision History Table 10: Revision History Version # Date Description Page(s) 0.1 Nov 20, 2014 NA Prelimnary Version 0.2 Mar 10, 2015 0.3 Apr 10, 2015 8 Ordering info is added. 0.4 Jun 15, 2015 5, 6 Updated Electrical Characteristics 0.5 July 16, 2015 1 Updated the descriptions 0.6 Sep 28, 2015 1, 2, 7, 8 Updated the descriptions and key features Updated the block diagram Changed VIH (input high voltage) Updated the package information 0.7 Oct 27, 2015 9 Updated the package info 1.0 Aug 19, 2016 All Content format changes, edits for grammar and clarity. Color removed from graphics. Updated the pin-out and pin-descriptions Important Notice Nuvoton products are not designed, intended, authorized or warranted for use as components in systems or equipment intended for surgical implantation, atomic energy control instruments, airplane or spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments, or for other applications intended to support or sustain life. Furthermore, Nuvoton products are not intended for applications wherein failure of Nuvoton products could result or lead to a situation wherein personal injury, death or severe property or environmental damage could occur. Nuvoton customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Nuvoton for any damages resulting from such improper use or sales. NAU88L25B Product Brief Rev 1.0 Page 16 of 16 Aug 19, 2016