CX20757 Low-Power High Definition Audio CODEC Data Sheet General Description Features Conexant's CX20757 is a low-power, 102dB Signal-toNoise Ratio (SNR), High Definition (HD) audio CoderDecoder (CODEC) that delivers high-quality audio for the mobile Personal Computer (PC) market, including notebooks, ultrabooks, and tablets. • • Compliant with Intel's HD Audio Specification 1.0a, the CX20757 has audio fidelity that exceeds Microsoft desktop and notebook premium logo requirements, including Windows 8.x. The CX20757 includes two stereo Digital-to-Analog Converters (DACs) and Analog-toDigital Converters (ADCs), a 2.8W stereo class-D, a capless headphone, an integrated headset with a detect/ switch, a universal audio jack, and digital microphones. • By combining these hardware features with Conexant's extensive voice and speech processing algorithms, the CODEC is the ideal solution for platforms that need Microsoft Lync, Skype, and Automatic Speech Recognition (ASR) certification. • Applications • • • • • • • • • • Notebooks Ultrabooks Desktop and all-in-one PCs Tablets Embedded applications • • System Compatibility • • • • • • • • HD Audio Specification 1.0a Windows XP/Vista/7/8.x Microsoft Premium Logo Linux Android 03/12/15 Two pairs of independent DACs and ADCs Independent sampling rates for DACs and ADCs— supports audio formats ranging from 16-bit to 24-bit, 44.1kHz to 192kHz for DAC, and 44.1kHz to 96kHz for ADC 2.8WRMS per channel class-D stereo speaker amplifier with spread spectrum SpeakerShield technology provides load-based speaker protection independent of driver and application—Protection includes Direct Current (DC), short, near-short, and temperature ProCoustic capless stereo headphone driver delivers 32mW into 32 load with no pops Built-in four-conductor headset jack support with autodetection and auto-switching between Apple and Nokia style headsets with in-line command sensing Hum noise is prevented on external powered speakers plugged into the headset jack when the system is off Universal jack supports all headsets, headphones, external microphones, and external line-in devices Digital Microphone Interface (DMIC) with boost supporting two digital microphone elements and DC offset removal Record security prevents unwanted recordings from all or selected input ports Analog and digital PC Beep are supported, and Wakeon-beep never misses a beep—even when in lowpower mode Multiple General Purpose Input/Outputs (GPIOs) for custom applications Integrated Low Drop-Out (LDO) regulators Headphone limiter supports GS Mark EN50332-2 without an external Bill Of Materials (BOM) Conexant Confidential • www.conexant.com 004-57DSR01 CX20757 Data Sheet Revision History Revision History Document No. Release Date Change Description 004-57DSR01 03/12/15 Added 1.8V HD link signaling support. 004-57DSR00 08/05/14 Initial release. Conexant Confidential 03/12/15 004-57DSR01 ii CX20757 Data Sheet Table of Contents Table of Contents General Description.......................................................................................................................................................i Applications ...................................................................................................................................................................i System Compatibility ....................................................................................................................................................i Features..........................................................................................................................................................................i Revision History ...........................................................................................................................................................ii Introduction...................................................................................................................................................................1 Overview............................................................................................................................................................................... 1 CX20757 Audio CODEC Features....................................................................................................................................... 2 System Compatibility .......................................................................................................................................................... 3 Hardware Qualification Process (HQP).............................................................................................................................. 3 Hardware Interface .......................................................................................................................................................4 General ................................................................................................................................................................................. 4 High Definition (HD) Audio Host Interface .................................................................................................................. 4 Control Signals ........................................................................................................................................................... 4 Audio Signals.............................................................................................................................................................. 4 CX20757 Block Diagram...................................................................................................................................................... 5 Pin Assignments and Signal Definitions........................................................................................................................... 6 Absolute Maximum Ratings.............................................................................................................................................. 12 Electrical Characteristics.................................................................................................................................................. 13 Device Performance Specifications................................................................................................................................. 14 Power Management and Power Consumption................................................................................................................ 17 Power Management.................................................................................................................................................. 17 Power Supply Minimum/Maximum Ratings .............................................................................................................. 17 Power Consumption ................................................................................................................................................. 18 Integrated Low Drop-Out (LDO) Regulators ............................................................................................................. 19 Digital High-Pass Filter (HPF)................................................................................................................................... 20 Alternating Current (AC) Timing Characteristics............................................................................................................ 21 Digital Microphone Interface (DMIC) ........................................................................................................................ 21 HD Audio Clocks....................................................................................................................................................... 22 Data Output and Input .............................................................................................................................................. 23 Package Dimensions and Thermal Specifications ......................................................................................................... 24 HD Audio Interface......................................................................................................................................................26 Overview............................................................................................................................................................................. 26 Conexant Confidential 03/12/15 004-57DSR01 iii CX20757 Data Sheet Table of Contents Verbs................................................................................................................................................................................... 27 Node ID 00: Root Node ............................................................................................................................................ 28 Node ID 01: Audio Function Group (AFG)................................................................................................................ 29 Nodes 10, 11: DAC 1, 2 Widgets.............................................................................................................................. 31 Node 12: PC Beep Generator Widget ...................................................................................................................... 32 Node 13, 14: ADC 1, 2 Widget ................................................................................................................................. 33 Node 15: Mixer Widget ............................................................................................................................................. 35 Node 16: Port A/Vendor Widget ............................................................................................................................... 36 Node 17: Port G........................................................................................................................................................ 37 Node 18: Port B Widget ............................................................................................................................................ 38 Node 19: Port D Widget............................................................................................................................................ 40 Node 1A: Port C Widget ........................................................................................................................................... 41 Ordering Information..................................................................................................................................................42 Conexant Confidential 03/12/15 004-57DSR01 iv CX20757 Data Sheet List of Figures List of Figures Figure 1: CX20757 Block Diagram ................................................................................................................................................... 5 Figure 2: CX20757 40-QFN Hardware Interface Signals.................................................................................................................. 6 Figure 3: CX20757 40-QFN Pad Signals.......................................................................................................................................... 7 Figure 4: Power Supply Rejection for Class-D Amplifier Output..................................................................................................... 15 Figure 5: Power Supply Rejection for Headphone Amplifier Output ............................................................................................... 15 Figure 6: Class-D Output Power vs Load (1% THD) ...................................................................................................................... 16 Figure 7: HPF Response ................................................................................................................................................................ 20 Figure 8: Digital Microphone Clock Timing Waveform.................................................................................................................... 21 Figure 9: BIT_CLK and SYNC Timing Waveforms ......................................................................................................................... 22 Figure 10: Data Output and Input Timing Waveforms .................................................................................................................... 23 Figure 11: CX20757 40-QFN Package Drawing............................................................................................................................. 24 Conexant Confidential 03/12/15 004-57DSR01 V CX20757 Data Sheet List of Tables List of Tables Table 1: CX20757 Pad Signals......................................................................................................................................................... 8 Table 2: Pad Signal Definitions......................................................................................................................................................... 9 Table 3: Absolute Maximum Ratings .............................................................................................................................................. 12 Table 4: DC Characteristics—Digital Microphone........................................................................................................................... 13 Table 5: DC Characteristics—TTL Compatible (GPIOs, SPKR_MUTE#, and MUSIC_REQ) ........................................................ 13 Table 6: Analog Performance Characteristics ................................................................................................................................ 14 Table 7: Device Power State Mapping............................................................................................................................................ 17 Table 8: DC Supply Voltages.......................................................................................................................................................... 17 Table 9: AFG D3 Power Consumption............................................................................................................................................ 18 Table 10: Full Scale Headphone Playback (32 Load) ................................................................................................................. 18 Table 11: Full Scale Class-D Playback (1W per Channel) ............................................................................................................. 18 Table 12: Line-In Recording............................................................................................................................................................ 19 Table 13: Digital Microphone Timing Parameters........................................................................................................................... 21 Table 14: BIT_CLK and SYNC Timing Parameters ........................................................................................................................ 22 Table 15: HD Audio Output Valid Delay Timing Parameters .......................................................................................................... 23 Table 16: HD Audio Input Setup and Hold Timing Parameters ...................................................................................................... 23 Table 17: Thermal Specifications.................................................................................................................................................... 25 Table 18: Node 0 Responses ......................................................................................................................................................... 28 Table 19: Node 01 Responses ....................................................................................................................................................... 29 Table 20: Node 10 and 11 Responses ........................................................................................................................................... 31 Table 21: PC Beep Generator Responses ..................................................................................................................................... 32 Table 22: Node 13 and 14 Responses ........................................................................................................................................... 33 Table 23: Node 15 Responses ...................................................................................................................................................... 35 Table 24: Node 16 Responses ....................................................................................................................................................... 36 Table 25: Node 17 Responses ....................................................................................................................................................... 37 Table 26: Node 18 Response ......................................................................................................................................................... 38 Table 27: Node 19 Response ......................................................................................................................................................... 40 Table 28: Node 1A Responses....................................................................................................................................................... 41 Table 29: CX20757 Ordering Information and Functions ............................................................................................................... 42 Conexant Confidential 03/12/15 004-57DSR01 VI CX20757 Data Sheet Introduction Introduction Overview Conexant's CX20757 is a low-power, 102dB SNR, HD audio CODEC that delivers high-quality audio for the mobile PC market, including notebooks, ultrabooks, and tablets. Compliant with Intel's HD Audio Specification 1.0a, the CX20757 has audio fidelity that exceeds Microsoft desktop and notebook premium logo requirements, including Windows 8.x. With two 24-bit stereo DACs that operate at sampling frequencies up to 192kHz and two 24-bit stereo ADCs that operate at sampling frequencies up to 96kHz, the CODEC can support multi-streaming and RTC applications. By combining these hardware features with Conexant's extensive voice and speech processing algorithms, the CODEC is the ideal solution for platforms that need Microsoft Lync, Skype, and ASR certification. The CX20757 has an integrated stereo filterless class-D amplifier with a High-Pass Filter (HPF) and patented common mode scrambling technology that is capable of driving 2.8WRMS per channel into a 4 load. Devices and speakers have load-based protection, including DC detection, short-circuit, over-current, and over-temperature. The tri-state, ProCoustic capless headphone driver produces a full-range frequency response and eliminates external Field Effect Transistors (FETs) for supporting headsets. Integrated auto-detect and auto-switch between Apple and Nokia style headsets eliminates all external BOM costs. In-line command sensing enables control of third-party applications directly from the headset. A single universal jack supports headsets, headphones, external microphones, and line-in devices. A Pulse Density Modulated (PDM) single-bit stream interface supports two digital microphones with DC offset removal for array implementations. Conexant's PopShield technology eliminates pops and clicks during all transition states, and includes active DC offset removal and an innovative Voltage reference (Vref) ramping scheme. The CX20757 has D-Flex power management that exceeds Intel's ECR 15B requirements and consumes minimum power during connected standby by powering down DACs, ADCs, and amplifiers without pops or clicks. Conexant offers comprehensive audio software driver support, with both in-house and third-party software APOs, including Andrea Electronics, Creative Labs, Dolby, DTS, Sonic Focus, MaxxAudio, Waves, and more. Conexant’s AudioSmart voice and speech processing algorithm suite ensures clear voice communication and speech command and control in noisy environments. The Smart Source Pickup (SSP) does not use or rely on beam-forming techniques, and provides an easy to use powerful solution that requires few or no user controls. The SSP passes the latest Intel ASR certification in all orientations with just two microphones, and is available for Windows, Linux, and Android. AudioSmart also offers keystroke, screen tapping, and fan noise suppression. Conexant Confidential 03/12/15 004-57DSR01 1 CX20757 Data Sheet CX20757 Audio CODEC Features CX20757 Audio CODEC Features The following lists the CX20757 audio CODEC features: • • • • • • • • • • • • • • • • • • • • • • • • • • Two pairs of independent DACs and ADCs Independent sampling rates for DACs and ADCs—Supports audio formats ranging from 16-bit to 24bit, 44.1kHz to 192kHz for DAC, and 44.1kHz to 96kHz for ADC 2.8WRMS per channel class-D stereo speaker amplifier with spread spectrum SpeakerShield technology provides load-based speaker protection independent of driver and application—Protection includes DC, short, near-short, and temperature ProCoustic capless stereo headphone driver delivers 32mW into 32 load with no pops Built-in four-conductor headset jack support with auto-detection and auto-switching between Apple and Nokia style headsets with in-line command sensing Hum noise is prevented on external powered speakers plugged into the headset jack when the system is off Universal jack supports all headsets, headphones, external microphones, and external line-in devices DMIC with boost supports two digital microphone elements and DC offset removal Record security prevents unwanted recordings from all or selected input ports Analog and digital PC Beep are supported, and Wake-on-beep never misses a beep—even when in low-power mode Multiple GPIOs for custom applications Speaker mute control input selectively mutes the class-D outputs Integrated LDO regulators Headphone limiter supports GS Mark EN50332-2 without an external BOM Integrated: – 5V to 3.3V LDO voltage regulator for improved analog audio performance – 3.3V to 1.8V LDO voltage regulator used to power digital blocks 1.5V, 1.8V and 3.3V HD audio link signaling levels are selectable Pop Shield II for enhanced pop and click suppression Jack sense detects jack events as well as enabling hardware-only selections for class-D mono mode and port C mono mode without Basic Input/Output System (BIOS) intervention An integrated digital mixer is used to record what is playing D-Flex enhanced power management exceeds Intel ECR 15B requirements Compliant with Intel’s HD Audio Specification 1.0a, and fidelity exceeds Vista/Windows 7/Windows 8.x desktop and notebook Premium Logo requirements AudioSmart super wideband voice and speech processing algorithms are available: – End-to-end noise reduction – Multi-band true stereo Acoustic Echo Cancellation (AEC) – SSP – Far Field Pickup – ASR certification for all form factors and orientations with two microphones Keystroke, screen tap, and fan noise suppression 10-band digital parametric SmartEQ enhances the sound quality on low-cost speakers Night mode boosts vocal clarity while maintaining background sound quality Conexant Confidential 03/12/15 004-57DSR01 2 CX20757 Data Sheet • • • • • • • • System Compatibility Multi-band DRC further improves the sound quality and loudness of low-cost speakers and prevents speaker rattle and distortion Phantom bass creates virtual bass content on mainstream speakers 3D: – Expander widens the audio stage for fuller and richer sound – Headphone recreates a surround, speaker-like environment in headphones so users can enjoy a richer, fuller music listening experience AudioSmart™ GUI—Advanced audio control panel Audio director for classic and multi-stream selections Third-party software support includes: – DTS, Inc. – Dolby – Creative Labs – ForteMedia – Andrea – Waves (MaxxAudio) Supports 32-bit/64-bit Windows OS and Linux Available in a 40-pad, thermally-enhanced Quad Flat No-leads (QFN) package System Compatibility • • • • • HD Audio Specification 1.0a Windows XP/Vista/7/8.x Microsoft Premium Logo Linux Android Hardware Qualification Process (HQP) The Hardware Qualification Process (HQP) is intended to improve the quality and reliability of board designs using the CX20757. The goals of this process are to: • • • • • • Eliminate common design mistakes Ensure boards perform well and pass Driver Test Manager (DTM) fidelity requirements with good margin Eliminate potential manufacturing issues that may result from a marginal design Eliminate country-specific issues Eliminate INF problems Converge towards standard designs The HQP process includes review of schematics, board layout, and BOM. All boards must meet the predefined criteria. Contact the local Conexant sales office for more details about the HQP process. The HQP process must be performed for all Original Equipment Manufacturer (OEM) designs. Conexant Confidential 03/12/15 004-57DSR01 3 CX20757 Data Sheet Hardware Interface Hardware Interface General High Definition (HD) Audio Host Interface The HD audio host interface conforms to Intel's HD Audio Specification 1.0a. The following lists the supported HD audio signals: • • • • • Bit clock (BIT_CLK), input Frame sync (SYNC), input Serial data output (SDATA_OUT), input Serial data input (SDATA_IN), input/output Master hardware reset (RESET#), input Control Signals The following lists the control signals that are supported from straps or the host: • • • Class-D speaker mute (SPKR_MUTE#), input Jack sense (JSENSE), input GPIOs (GPIO0, GPIO1) Audio Signals The following lists the supported audio interface signals: • • • • • • Port A (PORTA_L and PORTA_R), ProCoustic headphone output/line output, headset Port B (PORTB_L and PORTB_R), microphone input/line input with Microphone Bias (micbias) voltage Port C (PORTC_L and PORTC_R), analog or digital microphone input with micbias voltage Port D (PORTD_MIC), analog headset mono microphone input Port G (LEFT+ and RIGHT+), class-D speaker amplifier stereo/mono output PC Speaker Beep pass-through (PC_BEEP), input Conexant Confidential 03/12/15 004-57DSR01 4 CX20757 Data Sheet CX20757 Block Diagram CX20757 Block Diagram The following figure shows a simplified block diagram of the CX20757. HDA Link Interface #SPKR_M U T E R eset# Port C M icbias BIT _C LK Port B M icbias SYN C 14 SD I Headset M ic In Boost 19 AD C SD O Jack Port D D igital M icrophone 1A Port C Clock D ata Boost Internal 13 M ic/Line In Boost PC BEEP 1A AD C Port C M IC BIAS Internal Line In/Mic Boost 18 M ic/Line In Port B Line In/Mic Jack 15 2.2kΩ H eadset Ground 1 H eadset Ground 2 12 Beep 1C 11 16 D AC HP Line Out Jack Port A 17 10 D AC C lass-D Amp Internal Port G Sense A Figure 1: CX20757 Block Diagram Conexant Confidential 03/12/15 004-57DSR01 5 CX20757 Data Sheet Pin Assignments and Signal Definitions Pin Assignments and Signal Definitions The following figure shows the CX20757 40-QFN device signals by major interface. HDA Bus Signals 8 5 4 6 9 40 GPIOs and Digital Microphone 1 39 Charge Pump Flying Cap -2V or -2.6V C harge P um p B y pas s 3. 3V H eadphone P ow er 19 20 21 24 7 H D A B us S ignaling V olt age S t andby S upply V olt age 3.3V S upply V olt age f or D igit al 1. 8V C ore R egulat or B y pas s 18 3 5V to 3.3V R egulat or Input 5V to 3.3V R egulat or O ut put 28 27 C las s -D A m p R ight C h. S upply C las s-D A m p Lef t C h. S upply C las s-D R ef. V olt age Pin 41 Refer s to Exposed Gr ound Paddle SYN C B I T _C LK SD AT A_ OU T SD AT A_ IN R ESET # P C _B E E P LE F T LE F T + DMIC_CLK/GPIO0 D M IC _D AT/GPIO1 R I G H TR I G H T+ SPKR_MUTE# F LY _ P F LY _ N AVEE A V D D _H P CX20757 40-Pin QFN P O R T A _L P O R T A _R P O R T D_A_MIC P O R T D_B_MIC P O R T B_L_LINE P O R T B_R_LINE MICBIASB MICBIASC 11 41 14 12 15 17 22 23 30 31 32 33 34 35 Class-D Amp A udio S ignals M icbias V D D _I O D V D D _3 . 3 F I LT_ 1.8 GPIO0/PORTC_L_MIC GPIO1/PORTC_R_MIC 16 13 10 A V D D _5 V A V D D _3.3 JSENSE R P W R _5. 0 LP W R _5 .0 C LA S S -D _R E F VREF_1.65V 36 37 GPIOs and Microphone 38 J ac k S ens e 29 R ef erenc e V olt age GN D Figure 2: CX20757 40-QFN Hardware Interface Signals Conexant Confidential 03/12/15 004-57DSR01 6 CX20757 Data Sheet Pin Assignments and Signal Definitions 31 PO RT B _R _L IN E PO RT B _L_ LI NE PORTD _B _MIC 33 32 M IC BIA SC M IC BIA SB JSE N SE G P IO 1 / P O R TC _ R_ M IC G PIO 0 / P O R T C_ L_ MI C 40 39 38 37 36 35 34 D M IC _C LK / G PIO 0 SP KR _M U T E# The following figure and Table 1 show the CX20757 40-QFN device signals by pin number. D MIC _ DAT / G PIO 1 1 30 VDDO_3.3 2 F I LT _1 .8V 3 4 29 28 23 22 16 21 17 18 19 20 10 R IG H T + DVDD_3.3 F LY _P F L Y_ N PC _B EEP CX20757 RPWR_5.0 RE SET # 9 25 24 LPWR_5.0 L EF T R IG H T - 5 6 7 8 C L ASS -D _R E F L EF T + SD AT A_ IN VD D _I O S YN C 27 26 11 12 13 14 15 SD AT A_ O U T B IT _C LK PORTD _A _MIC VR EF _ 1.6 5V AV DD _ 5V AV DD _ 3.3 HGNDB HGNDA AV DD _ HP PO R T A_ R PO R T A_ L AV EE Figure 3: CX20757 40-QFN Pad Signals Conexant Confidential 03/12/15 004-57DSR01 7 CX20757 Data Sheet Pin Assignments and Signal Definitions Table 1: CX20757 Pad Signals Pad Number Signal Name Pad Number Signal Name 1 2 DMIC_DAT/GPIO1 21 AVEE VDDO_3.3 22 PORTA_L 3 FILT_1.8V 23 PORTA_R 4 SDATA_OUT 24 AVDD_HP 5 BIT_CLK 25 HGNDA 6 SDATA_IN 26 HGNDB 7 VDD_IO 27 AVDD_3.3 8 SYNC 28 AVDD_5V 9 RESET# 29 VREF_1.65V 10 PC_BEEP 30 PORTD_A_MIC 11 CLASS-D_REF 31 PORTD_B_MIC 12 LEFT+ 32 PORTB_L_LINE 13 LPWR_5.0 33 PORTB_R_LINE 14 LEFT- 34 MICBIASB 15 RIGHT- 35 MICBIASC 16 RPWR_5.0 36 GPIO0/PORTC_L_MIC 17 RIGHT+ 37 GPIO1/PORTC_R_MIC 18 DVDD_3.3 38 JSENSE 19 FLY_P 39 SPKR_MUTE# 20 FLY_N 40 DMIC_CLK/GPIO0 Conexant Confidential 03/12/15 004-57DSR01 8 CX20757 Data Sheet Pin Assignments and Signal Definitions The following lists the acronyms used in Table 2: • • • • • GND = Ground I = Input Ia = Input analog Id = In Digital IHD = Input High Definition • • • • • O = Output Oa = Output analog Od = Out digital PWR = Power Ref = Reference Table 2: Pad Signal Definitions Label Pad Number Type I/O Type Signal Name/Description Power VDD0_3.3 2 PWR I Digital Supply Voltage. 3.3V—Connect to the 3.3V system. FILT_1.8V 3 PWR O Internally Regulated Digital Core Supply Voltage. 1.8V –5%/ 10%—Connect to an external decoupling capacitor. VDD_IO 7 PWR I Input/Output Signaling Voltage Supply. Determines the signaling voltage that is being used on the host system. When VDD_IO is: • 1.5V, the device uses 1.5V signaling on the HDA interface pins • 1.8V, the device uses 1.8V signaling on the HDA interface pins • 3.3V, the device uses 3.3V signaling on the HDA interface pins LPWR_5.0 13 PWR I Supply Voltage for Class-D Amplifier, Left Channel. 5V— Connect to RPWR_5.0. Connect LPWR_5.0/RPWR_5.0, and then to the 5V system supply. RPWR_5.0 16 PWR I Supply Voltage for Class-D Amplifier, Right Channel. 5V— Connect to LPWR_5.0. Connect LPWR_5.0/RPWR_5.0, and then to the 5V system supply. DVDD_3.3 18 PWR I Charge Pump Input Supply Voltage. 3.3V—Connect to the 3.3V system. FLY_P 19 PWR Ref Charge Pump Negative Transfer Charge. Connected to FLY_N through a 1μF capacitor. FLY_N 20 PWR Ref Charge Pump Negative Transfer Charge. Connected to FLY_P through a 1μF capacitor. AVEE 21 PWR O Internally Generated Analog Negative Supply. –2.0V –10%/ 15%—Connect to an external decoupling capacitor. AVDD_HP 24 PWR I Supply Input Voltage for Headphone Amplifiers. 3.3V— Connect to the 3.3V system. AVDD_3.3 27 PWR O Output Voltage from LDO. 3.3V –5%/10%—Connect to an external decoupling capacitor. AVDD_5V 28 PWR I Analog Supply Input Voltage for LDO. 5V—Connect to the 5V system supply. HGNDA 25 GND GND Headset Microphone Ground. Microphone: • Ground terminal for Apple-style headsets • Bias for Nokia-style headsets HGNDB 26 GND GND Headset Microphone Ground. Microphone: • Ground terminal for Nokia-style headsets • Bias for Apple-style headsets Ground (GND) Conexant Confidential 03/12/15 004-57DSR01 9 CX20757 Data Sheet Pin Assignments and Signal Definitions Label Pad Number Type I/O Type Signal Name/Description GND 41 GND GND CODEC Ground. Thermal/electrical GND paddle of the device. Connect to the system and audio ground. 4 I IHD Serial Data Output. Serial input data stream from an HDA controller. • Reset state = Low • Standard load = 50pF HD Audio Interface SDATA_OUT Connect to SDATA_OUT through 33Ω. BIT_CLK 5 I IHD Bit Clock. 24MHz serial data input bit clock from the HDA link. Connect to BIT_CLK. SDATA_IN 6 I/O IHD Serial Data Input. Serial output data stream to the HDA controller. Functions as an input during CODEC initialization. Controller has a weak pull-down resistor to prevent spurious events in electrically noisy environments. Connect to SDATA_IN through 33Ω. SYNC 8 I IHD Frame Sync. 48kHz fixed rate sample HDA sync input. Synchronization pulse from an HDA compliant controller to all of the HDA compliant CODECs on the link. This signal is nominally a 0.167μs wide pulse that is used to synchronize the HDA. • Reset state = Low • Standard load = 50pF SYNC is derived from dividing BIT_CLK by 500. Connect to SYNC. RESET# 9 I IHD Master Hardware Reset. Active low HDA link reset signal. The minimum width of this pulse must be 100μs. Connect directly to RESET. Reference Voltage Connections CLASSD_REF 11 REF Ref Class-D Amplifier Reference Voltage. Connect to the RPWR_5.0/LPWR_5.0 voltage supply through an external capacitor. VREF_1.65V 29 REF Ref Analog Reference Voltage. 1.65V –6%/12%—Connect to an external decoupling capacitor. DMIC_DAT/GPIO1 1 I/O Id/Od Multi-purpose I/O Pin. Use: • DMIC_DAT for the microphone data input when Port C is configured for the digital microphone. • GPIO1 for GPIO applications GPIO0/ PORTC_L_MIC 36 I/O Id/Od Multi-purpose I/O Pin. Use: • GPIO0 for GPIO applications • PORTC_L_MIC for the microphone left input when Port C is configured for analog microphone input GPIO1/ PORTC_R_MIC 37 I/O Id/Od Multi-purpose I/O Pin. Use: • GPIO1 for GPIO applications • PORTC_R_MIC for microphone right input when Port C is configured for analog microphone input SPKR_MUTE# 39 I Id GPIOs Class-D Speaker Mute. External control input to mute class-D speakers. Active low. Optional. Conexant Confidential 03/12/15 004-57DSR01 10 CX20757 Data Sheet Pin Assignments and Signal Definitions Label Pad Number Type I/O Type DMIC_CLK/GPIO0 40 I/O Id/Od Multi-purpose I/O Pin. Use: • DMIC_CLK for microphone clock input when Port C is configured for a digital microphone • GPIO0 for GPIO applications 10 I Ia PC Speaker Beep Pass-through. Input. Logic-level BEEP signal needs to be AC-coupled to this pin. The default gain setting is: • –28dB on the speakers • –46dB on the headphone LEFT+ 12 O Oa Class-D Amplifier Output, Left Channel, Positive. LEFT- 14 O Oa Class-D Amplifier Output, Left Channel, Negative. RIGHT- 15 O Oa Class-D Amplifier Output, Right Channel, Negative. RIGHT+ 17 O Oa Class-D Amplifier Output, Right Channel, Positive. PORTA_L 22 O Oa Headphone Output/Line Output, Left Channel. A ProCoustic (capless) headphone output. PORTA_R 23 O Oa Headphone Output/Line Output, Right Channel. A ProCoustic (capless) headphone output. PORTD_A_MIC 30 I Ia Headset Microphone Input. Mono microphone input for Applestyle headsets. PORTD_B_MIC 31 I Ia Headset Microphone Input. Mono microphone input for Nokia/ OMTP-style headsets. PORTB_L_LINE 32 I Ia Microphone Input/Line Input, Left Channel. With micbias voltage. PORTB_R_LINE 33 I Ia Microphone Input/Line Input, Right Channel. With micbias voltage. Signal Name/Description Audio Digital Signals PC_BEEP Audio Analog Signals MICBIASB 34 REF Ref Micbias Voltage for Port B. MICBIASC 35 REF Ref Micbias Voltage for Port C. GPIO0/ PORTC_L_MIC 36 I/O I/Oa Microphone Input/Line Input, Left Channel. With micbias voltage. GPIO1/ PORTC_R_MIC 37 I/O I/Oa Microphone Input/Line Input, Right Channel. With micbias voltage. JSENSE 38 I/O I/Oa Jack Sense Input. Conexant Confidential 03/12/15 004-57DSR01 11 CX20757 Data Sheet Absolute Maximum Ratings Absolute Maximum Ratings The following table lists the device's absolute maximum ratings. Table 3: Absolute Maximum Ratings Parameter Symbol Limits Units Supply Voltage DVDD_3.3/VDDO_3.3 3.6 V VDD_IO AVDD_HP AVDD_5V RPWR_5.0/LPWR_5.0 3.6/1.651 3.6 5.5 5.5 Digital Input Voltage Vind –0.7 to 4 V Analog Input Voltage Vina –0.7 to 4 V DC Clamp Current, Input Iik +20 mA DC Clamp Current, Output Iok +20 mA Storage Temperature Range Tstg –55 to 125 °C Operating Temperature Range Top 0 to 70 °C 1 = Depends on the HD audio signaling level. Conexant Confidential 03/12/15 004-57DSR01 12 CX20757 Data Sheet Electrical Characteristics Electrical Characteristics The following table lists the electrical characteristics for the DMIC. Table 4: DC Characteristics—Digital Microphone Parameter Symbol Minimum Typical Maximum Units Notes Input Voltage Low VIL –0.3 - 0.35 x VDDO_3.3 V - Input Voltage High VIH 0.65 x VDDO_3.3 - 3.3 V - Output Voltage Low VOL - - 0.4 V - Output Voltage High VOH VDDO_3.3 - 0.4 - - V - Drive Strength - 0.3 4 6.8 mA Adjustable Note: – – Test conditions unless otherwise stated: ■ = 3.3 ± 0.165 VDC ■ TA = 0°C to 70°C Input load 20μA (weak pull-down) The following table lists the device’s DC characteristics for the TTL-compatible I/Os. Table 5: DC Characteristics—TTL Compatible (GPIOs, SPKR_MUTE#, and MUSIC_REQ) Parameter Symbol Minimum Typical Maximum Units Notes Input Voltage VIN - - 4 V - Input Voltage Low VIL –0.5 - 0.8 V - Input Voltage High VIH 2 - Vdd+0.5 V - Output Voltage Low VOL 0 - 0.4 V - Output Voltage High VOH 2.4 - Vdd V - GPIO Output Sink Current at 0.4V Maximum - - - 12 mA - GPIO Output Source Current at 2.97V Minimum - - - 12 mA - GPIO Rise/fall Time - - - 4 ns 25% to 75% Note: Test conditions unless otherwise stated: – – VDDO_3.3 = 3.3 ± 0.165 VDC TA = 0°C to 70°C – External load = 50pF Conexant Confidential 03/12/15 004-57DSR01 13 CX20757 Data Sheet Device Performance Specifications Device Performance Specifications The tables and graphs in this section illustrate the device’s analog performance. Table 6: Analog Performance Characteristics Parameter Minimum Typical Maximum Units Full Scale Output Voltage - 1 - VRMS Headphone Output Dynamic Range (Measured with –60dBFS Signal Present) - 99 - dBFS Total Harmonic Distortion Plus Noise (THD+N), Measured at –3dBFS - –86 - dB Channel Crosstalk - –75 - dBFS Analog Frequency Response (±3dB at 20Hz, ±1dB at 20000Hz) 20 - 20000 Hz Full Scale Output Voltage (into 4) - 4 2.90 - Vp VRMS Class-D Speaker Amplifier Outputs Dynamic Range (Measured with –60dBFS Signal Present) - 94 - dBFS THD+N, Measured at –3dBFS - –65 - dBFS Analog Frequency Response (±3dB at 20Hz, ±1dB at 20000Hz) 20 - 20000 Hz Efficiency (Measured at 1W/Ch) - 85 - % Full Scale Input Voltage 1 - - VRMS Line Inputs Dynamic Range (Measured with –60dBFS Signal Present) - 92 - dBFS THD+N, Measured at –3dBFS - –87 - dB Channel Crosstalk - –84 - dBFS Analog Frequency Response (±3dB at 200Hz, ±1dB at 20000Hz) 20 - 20000 Hz Input Resistance—0dB - 15.8 - k Input Capacitance - 5 - pF Full Scale Input Voltage with: 20dB boost Boost off 0.1 1 - - VRMS - Microphone Inputs Dynamic Range (Measured with –60dBFS Signal Present) - 91 - dBFS THD+N, Measured at –3dBFS - –87 - dB Channel Crosstalk (Measured at 1kHz, 0dB Gain) - –84 - dBFS Analog Frequency Response (±3dB at 200Hz, ±1dB at 20000Hz) 100 - 20000 Hz 15.8 5 - k - 5 - pF Input Resistance 0dB 10dB–40dB Input Capacitance - Conexant Confidential 03/12/15 004-57DSR01 14 CX20757 Data Sheet Device Performance Specifications Figure 4: Power Supply Rejection for Class-D Amplifier Output Figure 5: Power Supply Rejection for Headphone Amplifier Output Conexant Confidential 03/12/15 004-57DSR01 15 CX20757 Data Sheet Device Performance Specifications Class-D Output Power vs Load (1% THD) Output Power (W) 2.500 2.000 1.500 1.000 0.500 0.000 4 5 6 7 8 9 10 11 12 Load (Ω) Figure 6: Class-D Output Power vs Load (1% THD) Conexant Confidential 03/12/15 004-57DSR01 16 CX20757 Data Sheet Power Management and Power Consumption Power Management and Power Consumption Power Management Advanced power management features allow the device to conserve additional power by disabling/ enabling individual functional blocks. Table 7: Device Power State Mapping Device State System State Wake-up Time Description D0 S0 - Device is in full power. D1, D2 S0-Idle 1ms Lower power standby (LP1). Transition time to full power is 1ms. D3 S0-Idle 10ms 75ms Lowest power standby (LP2). Transition time to full power is 10ms, and an additional 75ms for full fidelity. D4 S3 200ms Standby, prepare for shutdown. Transition time to full power 200ms. D4 S4 200ms Hibernate, prepare for shutdown. Transition time to full power 200ms. Power Supply Minimum/Maximum Ratings The following table shows the required voltages at the various supply input pins of the devices. Table 8: DC Supply Voltages Parameter Symbol Minimum Typical Maximum Units Notes Digital Voltage Supply VDDO_3.3 3.165 3.3 3.465 V - Charge Pump Supply DVDD_3.3 3.165 3.3 3.465 V - HDA Bus Signaling Supply, 3.3V VDD_IO 3.165 3.3 3.465 V - HDA Bus Signaling Supply, 1.8V VDD_IO 1.71 1.8 1.89 V - HDA Bus Signaling Supply, 1.5V VDD_IO 1.425 1.5 1.575 V - Class-D Amp Supply, Left Channel LPWR_5.0 4.75 5 5.25 V - Class-D Amp Supply, Left Channel RPWR_5.0 4.75 5 5.25 V - Headphone Voltage Supply AVDD_HP 3.165 3.3 3.465 V - 5V-to-3.3V Regulator Input AVDD_5V 4.75 5 5.25 V - Conexant Confidential 03/12/15 004-57DSR01 17 CX20757 Data Sheet Power Management and Power Consumption Power Consumption Test conditions for the nominal device are at 25oC. The tables in this section provide the power consumption parameters. Table 9: AFG D3 Power Consumption Bit_CLK Power Rail (V) No BIT_CLK mA mW mA mW AVDD_5V 5 0.3 1.5 0.5 2.4 AVDD_HP 3.3 0 0 0 0.1 SPKPWR 5 0.6 3.1 0.5 2.5 VDDO_3.3 3.3 4.1 13.5 0.9 3 VDD_IO 3.3 0.3 1 0 0 DVDD_3.3 3.3 0 0 0.1 Total Power Consumption (mW) 0.2 19.1 8.1 Table 10: Full Scale Headphone Playback (32 Load) Play 0dB Sine Wave to Capless HP Power Rail (V) mA mW AVDD_5V 5 7.2 35.8 AVDD_HP 3.3 30.7 101.4 SPKPWR 5 0.5 2.5 VDD_IO 3.3 20.5 67.7 VDDIO_3.3 3.3 0.2 0.5 DVDD_3.3 3.3 40.4 133.4 Total Power Consumption (mW) 341.4 Table 11: Full Scale Class-D Playback (1W per Channel) Play 0dB Sine Wave to Class-D (1W) Power Rail (V) mA mW AVDD_5V 5 14.3 71.7 AVDD_HP 3.3 0 0 SPKPWR 5 473.3 2366.5 VDDO_3.3 3.3 20.5 67.7 VDD_IO 3.3 0.2 0.5 DVDD_3.3 3.3 0.9 2.9 Total Power Consumption (mW) 2509.4 Conexant Confidential 03/12/15 004-57DSR01 18 CX20757 Data Sheet Power Management and Power Consumption Table 12: Line-In Recording Line-In Record from Port B Power Rail (V) mA mW AVDD_5V 5 8.8 43.9 AVDD_HP 3.3 0 0 SPKPWR 5 0.5 2.5 VDDO_3.3 3.3 18.9 62.4 VDD_IO 3.3 0.4 1.2 DVDD_3.3 3.3 0.1 0.2 Total Power Consumption (mW) 110.2 Integrated Low Drop-Out (LDO) Regulators The devices feature the following two integrated LDO voltage regulators: • • 5V to 3.3V regulator = Although the output of this voltage regulator (AVDD_3.3) can be used to power external circuitry (e.g., low-power analog), external current consumption from the regulator should be limited to no more than 30mA. Additionally, caution should be used when powering external circuitry, and use filtering (e.g., ferrite bead plus capacitor) to prevent the external circuitry from adding noise to the AVDD_3.3 voltage rail. 3.3V to 1.8V regulator = The output of this voltage regulator (FILT_1.8) can also be used to power external circuitry (e.g., discrete logic). Conexant Confidential 03/12/15 004-57DSR01 19 CX20757 Data Sheet Power Management and Power Consumption Digital High-Pass Filter (HPF) The device features a hardware digital HPF that is intended to be applied to the DAC that is mapped to the class-D speaker port (assumed to drive external amplifier or powered speakers). The HPF is enabled and set to 120Hz by default. The cut-off frequency can be adjusted from 30Hz to 1890Hz in 30Hz increments. The purpose of this high-pass is to prevent audio content with a significant DC offset from heating and possibly damaging speakers. Audio content with a large DC component can easily be found in homemade movies and Internet sites. Figure 7: HPF Response Conexant Confidential 03/12/15 004-57DSR01 20 CX20757 Data Sheet Alternating Current (AC) Timing Characteristics Alternating Current (AC) Timing Characteristics Digital Microphone Interface (DMIC) The CX20757 DMIC consists of a clock and a data pin. The digital microphone clock pin provides a 3.072MHz (default) or 1.536MHz clock to the digital microphone. The digital microphone data pin is an input, accepting multiplexed PDM data from the digital microphone. Figure 8 illustrates the timing waveforms, and Table 13 lists the timing parameters. Note: For a list of qualified digital microphones, contact a Conexant Sales FAE. T su Th DMIC_CLK T DMIC_DATA Left Mic Data Dmic_clk_period Left Mic Data Right Mic Data Right Mic Data Figure 8: Digital Microphone Clock Timing Waveform Table 13: Digital Microphone Timing Parameters Parameter Symbol Minimum Typical Maximum Units DMIC_CLK Frequency1 - 3.0689 3.072 3.0751 MHz DMIC_CLK Period TDmic_clk_period 325.19 325.52 325.85 ns DMIC_CLK Transition Period @ 50pF2 - - - 4 ns DMIC_CLK Transition Period @ 20pF2 - - - 1.9 ns DMIC_CLK Transition Period @ 7pF2 - - - 1 ns DMIC_DATA Setup Time Tsu - 36 - ns DMIC_DATA Hold Time Th 0 - - ns 1 = Worst case duty cycle restricted to 40/60. 2 = Measured between 25% and 75% full scale. Conexant Confidential 03/12/15 004-57DSR01 21 CX20757 Data Sheet Alternating Current (AC) Timing Characteristics HD Audio Clocks The BIT_CLK signal is a 24MHz clock that is sourced from the HD audio controller and connected to all CODECs on the link. Figure 9 and Table 14 show the HD audio clock waveforms and timing parameters. T clk_low BIT_CLK T clk_high T clk_period SYNC Tsync_high T sync_period Figure 9: BIT_CLK and SYNC Timing Waveforms Table 14: BIT_CLK and SYNC Timing Parameters Parameter Symbol Minimum Typical Maximum Units BIT_CLK Frequency - 23.9976 24 24.0024 MHz BIT_CLK Period Tclk_period 41.363 41.67 41.971 ns BIT_CLK Output Jitter - - 150 500 Ps BIT_CLK High Pulse Width1,2 Tclk_high 18.75 - 22.91 ns BIT_CLK Low Pulse Width1,2 Tclk_low 18.75 - 22.91 ns SYNC Frequency3 - - 48 - kHz SYNC Period Tsync_period - 20.8 - μs SYNC High Pulse Width Tsync_high - 4 x Tclk_period - μs 1 = 47.5pF–70pF external load. 2 = Worst-case duty cycle restricted to 40/60. 3 = The SYNC frequency is equal to the BIT_CLK frequency, divided by 500. Conexant Confidential 03/12/15 004-57DSR01 22 CX20757 Data Sheet Alternating Current (AC) Timing Characteristics Data Output and Input Figure 10 illustrates the data output and input waveforms, and Table 15 and Table 16 list the timing parameters. BIT_CLK T setup T hold T hold SDATA_OUT T co SDATA_IN Figure 10: Data Output and Input Timing Waveforms Table 15: HD Audio Output Valid Delay Timing Parameters Parameter Symbol Minimum Typical Maximum Units Output Valid Delay from Rising Edge of BIT_CLK Tco 3 - 11 ns Note: – – The timing is for SDATA and SYNC outputs with respect to BIT_CLK at the device driving the output. 50pF external load. Table 16: HD Audio Input Setup and Hold Timing Parameters Parameter Symbol Minimum Typical Maximum Units Input Setup at Both Rising and Falling Edge of BIT_CLK Tsetup 5 - - ns Input Hold at Both Rising and Falling Edge of BIT_CLK Thold 5 - - ns Note: – – The timing is for SDATA and SYNC inputs with respect to BIT_CLK at the device latching the input. The CX20757 does not impose a maximum value on the system. Conexant Confidential 03/12/15 004-57DSR01 23 CX20757 Data Sheet Package Dimensions and Thermal Specifications Package Dimensions and Thermal Specifications The following figure shows the package drawing for the device. Figure 11: CX20757 40-QFN Package Drawing Conexant Confidential 03/12/15 004-57DSR01 24 CX20757 Data Sheet Package Dimensions and Thermal Specifications The following table defines the thermal specifications. Table 17: Thermal Specifications Parameter Symbol Minimum Typical Maximum Units Notes Theta-JA (Junction-to-Ambient JA Thermal Resistance) - 36.2 - o Four-layer PCB with solid ground plane and thermal vias (still air). Psi-JT (Junction-to-Package JT Top Thermal Characterization Parameter) - 0.39 - o Four-layer PCB with solid ground plane and thermal vias (still air). C/W C/W Note: Measurements per JEDEC EIA/JESD 51. The JA of application boards with more than four layers stay the same or improve if the PCB construction is similar to the JEDEC EIA/JESD 51 defined four-layer PCB (2S2P plus vias). Conexant Confidential 03/12/15 004-57DSR01 25 CX20757 Data Sheet HD Audio Interface HD Audio Interface Overview The HD audio interface is a five-pin interface: • • • • • Clock (BIT_CLK) Serial data in (SDATA_IN) Serial data out (SDATA_OUT) SYNC RESET# The clock is provided by the controller at a frequency of 24MHz. Because the SDATA_OUT signal is provided by the controller and contains data for every edge of the 24MHz clock, the CX20757 must sample data on both rising and falling edges of SDATA_OUT. The SYNC signal not only signals the beginning of the 500 clock frame, it designates the beginning of the data for each stream and indicates which stream of data is to be on SDATA_OUT next (streams do not need to appear in order; the controller may do as it likes). Channels are another way of organizing the serial data. Each stream has at least one channel. Each stream must start with channel 0 and proceed without interruption until all the assigned channels are exhausted. A stereo pair takes two adjacent channels. The SDATA_IN signal contains the CX20757 data headed towards the controller, and is only generated on rising edges. This includes information read from the HD audio registers, ADC, and incoming modem data. The stream and channel are indicated before the data is transmitted on SDATA_IN (refer to Intel’s HD Audio Specification 1.0a for the format). The SDATA_IN signal is responsible for knowing the device number, which is the CODEC Address (CAd) in Intel’s HD Audio Specification 1.0a. During the last clock of the first sync after a Power-on Reset (PoR), the SDATA_IN is driven high by the CX20757 for one clock cycle. This indicates to the controller the need for a CAd. The CX20757 then stops driving the SDATA_IN signal, and the controller begins to drive it. The controller drives SDATA_IN high through the next sync, and the CAd is assigned by the number of clocks after the fall of sync that it takes for the SDATA_IN to fall. The interface then turns around again, and SDATA_IN is an output from the CX20757 until reset. Intel’s HD Audio Specification 1.0a also contains one other concept of an unsolicited message. Unsolicited messages can occur for a number of reasons, such as timers, ringing phones, answers from the device to a register read, etc. Because the bus has no interrupt, these reasons are taken care of in unsolicited messages. If the controller was not addressing the CAd assigned to the CX20757 during the previous frame and if one of these unsolicited messages is needed (and enabled), the CX20757 uses the first cycles after the sync on SDATA_IN to alert the controller to the event. Only one event can be signaled in a frame. The CX20757 only sends the message once, and does not expect any sort of acknowledgment from the controller. Conexant Confidential 03/12/15 004-57DSR01 26 CX20757 Data Sheet Verbs Verbs This section describes how this device interacts with the verbs defined in Intel’s HD Audio Specification 1.0a. Each of the following subsections describe the verb IDs, parameters/payload, and corresponding responses that apply to that node. Verbs are commands and queries that are passed from the HD audio controller to the CODECs on the HD audio bus. Responses are data passed from the HD audio CODEC to the HD audio controller. All controller verbs must be followed by a CODEC response. Unsolicited responses from the CODEC are data transmitted without a controller verb request. A 1 in the: • • Valid bit position indicates the Response field contains a valid response. UnSol bit position is meaningful only when the Valid bit is set, and indicates that the response is unsolicited rather than in reply to a verb. The 32 actual response bits vary in format and are each documented in Intel’s HD Audio Specification 1.0a. Note: For more information regarding the verbs, controller, CODEC commands, and control protocol, refer to Intel’s HD Audio Specification 1.0a document. Each node in the CODEC is addressed using a CAd that is assigned to the CODEC during initialization, and the Node's ID (NID). The concatenation of the CAd and NID provide a unique address that allows commands to reference a specific node within the audio subsystem. The entire verb is formed by pre-pending the CAd and the NID to the verb ID and parameter/payload. In this section’s tables and descriptions, the CAd and NID are not listed as part of the verb. Register values may have up to five letters included with their default value. These letters indicate which of the possible reset events force the register to its default value. The five letters are as follows: • • • • • P = Power-on reset R = HD audio reset pin assertion V = Single verb reset W = Double verb reset D = D-state change reset Only the letters in the list force the register to its default value. Conexant Confidential 03/12/15 004-57DSR01 27 CX20757 Data Sheet Verbs Node ID 00: Root Node Table 18 defines a root note that has one Audio Function Group (AFG). This device is compliant with and follows the guidelines given in Intel’s HD Audio Specification 1.0a and the Windows Logo Program Device Requirements for Windows 7 and Windows 8. Table 18: Node 0 Responses Description Verb ID Parameter Response Default Value Comments Vendor ID F00h 00h 14F15115h - CX20757. Revision ID F00h 02h 0x00100100 - Revision B0. Subordinate Node Count F00h 04h 0x00010001 - AFG. Conexant Confidential 03/12/15 004-57DSR01 28 CX20757 Data Sheet Verbs Node ID 01: Audio Function Group (AFG) The following table describes an AFG. Table 19: Node 01 Responses Description Verb ID Parameter Response Default Value Comments Subordinate Node Count 0xF00 0x04 0x0010000D - • • Starting node = 10 Node count = 13 Function Group 0xF00 0x05 0x00000101 - • • AFG Unsolicited capable AFG Capabilities 0xF00 0x08 0x00010F0F - • Sample delay in and out is 16 PC Beep generation • PCM Size and Rate 0xF00 0x0A 0x000E0160 - • • 16-bit and 24-bit 44.1kHz, 48kHz, and 96kHz PCM Format 0xF00 0x0B 0x00000001 - PCM only. Supported Power States 0xF00 0x0F 0xE000001F - EPSS, clock stop, D0, D1, D2, D3, and D4. GPIO Count 0xF00 0x11 0xC0000002 - Two GPIOs, unsolicited message, and wake. Get Power State 0xF05 0x00 0x00000abc 0x00000633 (P,W) • a = Settings reset • b = Actual state • c = Requested state The settings reset is cleared by this verb or any write to this node. Set Power State 0x705 0x0a 0x00000000 - Get Unsolicited 0xF08 0x00 0x000000aa 0x00000000 (P,W) aa = Unsolicited enable and tag. Set Unsolicited 0x708 0xaa 0x00000000 - Get GPIO Data 0xF15 0x00 0x000000aa 0x00000000 (P,W) aa = GPIO data. a = Requested state. aa = Unsolicited enable and tag. Set GPIO Data 0x715 0xaa 0x00000000 - Get GPIO Enable 0xF16 0x00 0x000000aa 0x00000000 (P,W) aa = GPIO enable. aa = GPIO data. Set GPIO Enable 0x716 0xaa 0x00000000 - Get GPIO Direction 0xF17 0x00 0x000000aa 0x00000000 (P,W) aa = GPIO direction. Set GPIO Direction 0x717 0xaa 0x00000000 - Get GPIO Wake 0xF18 0x00 0x000000aa 0x00000000 (P,W) aa = GPIO wake. Set GPIO Wake 0x718 0xaa 0x00000000 - Get GPIO UM Enable 0xF19 0x00 0x000000aa 0x00000000 (P,W) aa = Unsolicited message enable. Set GPIO UM Enable 0x719 0xaa 0x00000000 - Get GPIO Sticky Mask 0xF1A 0x00 0x000000aa 0x00000000 (P,W) aa = Sticky mask. Set GPIO Sticky Mask 0x71A 0xaa 0x00000000 - aa = GPIO enable. aa = GPIO direction. aa = GPIO wake. aa = Unsolicited message enable. aa = Sticky mask. Conexant Confidential 03/12/15 004-57DSR01 29 CX20757 Data Sheet Verbs Table 19: Node 01 Responses (Continued) Description Verb ID Parameter Response Default Value Comments Get Default Config 0xF1C– 0xF1F 0x00 0xaabbccdd 0x00000000 (P) • • • • Set Default Config 1 0x71C 0xaa 0x00000000 - aa = Config1. Set Default Config 2 0x71D 0xaa 0x00000000 - aa = Config2. Set Default Config 3 0x71E 0xaa 0x00000000 - aa = Config3. Set Default Config 4 0x71F 0xaa 0x00000000 - aa = Config4. Get Subsystem ID 0xF20– 0xF23 0x00 0xaaaabbcc 0x14F10101 (P) • • • Set Subsystem ID 1 0x720 0xaa 0x00000000 - aa = Assembly ID. Set Subsystem ID 2 0x721 0xaa 0x00000000 - aa = SKU ID. Set Subsystem ID 3 0x722 0xaa 0x00000000 - aa = Subsystem ID low byte. Set Subsystem ID 4 0x723 0xaa 0x00000000 - aa = Subsystem ID high byte. Soft Reset 0x7FF 0x00 0x00000000 - - aa = Config4 bb = Config3 cc = Config2 dd = Config1 aaaa = Subsystem ID bb = SKU ID cc = Assembly ID Conexant Confidential 03/12/15 004-57DSR01 30 CX20757 Data Sheet Verbs Nodes 10, 11: DAC 1, 2 Widgets The following table describes a stereo DAC that supports 16-bit, 20-bit, and 24-bit widths, and 44.1kHz, 48kHz, 96kHz, and 192kHz sample rates. Table 20: Node 10 and 11 Responses Description Verb ID Parameter Response Default Value Comments Get Converter Format 0xA 0x0000 0x0000aaaa 0x00000031 (P,W) aaaa = Converter format. Set Converter Format 0x2 0xaaaa 0x00000000 - Get Amp Gain 0xB80 0xBA0 0x00 0x00 0x000000aa 0x0000004A (P,W) • • aa = Right gain aa = Left gain Set Amp Gain 0x390 0x3A0 0x3B0 0xaa 0x00000000 - • • • aa = Right gain aa = Left gain aa = Right and left gain Audio Widget DAC 0xF00 0x09 0x00000C1D - DAC—analog. PCM Size and Rate 0xF00 0x0A 0x000A0060 0x000A0560 0x000A0060 • aaaa = Converter format. • 16-bit and 24-bit, 44.1kHz and 48kHz 96kHz and 192kHz PCM Format 0xF00 0x0B 0x00000001 - PCM only. Supported Power States 0xF00 0x0F 0x8000000F - EPSS, D0, D1, D2, and D3. Get Output Amp Capabilities 0xF00 0x12 0x80034A4A - • Get Power State 0xF05 0x00 0x00000abc 0x00000433 (P,W) • a = Settings reset • b = Actual state • c = Requested state The settings reset is cleared by this verb or any write to this node. Set Power State 0x705 0x0a 0x00000000 - a = Requested state. Get Converter Stream/Channel 0xF06 0x00 0x000000ab 0x00000000 (P, R, V, W, D) • • a = Stream b = Channel position Set Converter Stream/Channel 0x706 0xab 0x00000000 - • • a = Stream b = Channel position Get EAPD 0xF0C 0x00 0x0000000a 0x00000000 (P,W) a = Left/right swap. Set EAPD 0x70C 0x0a 0x00000000 - • Mute, 1dB step, step 74 is 0dB 74 of 80 steps are exposed a = Left/right swap. Conexant Confidential 03/12/15 004-57DSR01 31 CX20757 Data Sheet Verbs Node 12: PC Beep Generator Widget Table 21 describes a beep generator. PC beep is mixed in with all enabled output ports while in D0. When the PC beep input pin is connected but inactive, while not toggling no system noise is injected on the output pins. If the PC beep input is left unconnected, there is no impact on the performance of the output ports. This is a mono widget. Only the left channel volume request is valid. Any request, read, or write with the right channel is ignored and returns 0x00000000. If both left and right are present in the request, only the value from the left side is used. The beep gain level range (–4dB to –32dB) is for the speaker port. The default setting is –28dB on the speaker, and –46dB on the headphone. Table 21: PC Beep Generator Responses Description Verb ID Parameter Response Default Value Comments Get Amp Gain 0xBA0 0x00 0x0000000a 0x00000001 (P,W) aa = Left gain. Set Amp Gain 0x3A0 0x3B0 0xaa 0x00000000 - • • Audio Widget PC Beep 0xF00 0x09 0x0070000C - PC Beep generator with an output amp. Get Output Amp Capabilities 0xF00 0x12 0x000F0707 - 4dB step, eight steps, and step 8 is –4dB. Get Beep Generation Control 0xF0A 0x00 0x000000aa 0x00000000 (P,W) aa = Divider. Set Beep Generation Control 0x70A 0xaa 0x00000000 - aa = Left gain aa = Left gain aa = Divider. Conexant Confidential 03/12/15 004-57DSR01 32 CX20757 Data Sheet Verbs Node 13, 14: ADC 1, 2 Widget Table 22 describes a stereo ADC that supports 16-bit and 24-bit widths, and 44.1kHz, 48kHz, and 96kHz sample rates. The ADC has a gain stage and a stereo one-of-four input selector. Table 22: Node 13 and 14 Responses Description Verb ID Parameter Response Default Value Comments Get Converter Format 0xA 0x0000 0x0000aaaa 0x00000031 (P,W) aaaa = Converter format. Set Converter Format 0x2 0xaaaa 0x00000000 - Get Index 0 Amp Gain 0xB00 0xB20 0x00 0x000000aa 0x000000aa 0x0000004A (P,W) • • aa = Right gain aa = Left gain Get Index 1 Amp Gain 0xB00 0xB20 0x01 0x000000aa 0x000000aa 0x0000004A (P,W) • • aa = Right gain aa = Left gain Get Index 2 Amp Gain 0xB00 0xB20 0x02 0x000000aa 0x000000aa 0x0000004A (P,W) • • aa = Right gain aa = Left gain Get Index 3 Amp Gain 0xB00 0xB20 0x03 0x000000aa 0x000000aa 0x0000004A (P,W) • • aa = Right gain aa = Left gain Set Index 0 Amp Gain 0x350 0x360 0x370 0xaa 0x00000000 - • • • aa = Right gain aa = Left gain aa = Left and right gain Set Index 1 Amp Gain 0x351 0x361 0x371 0xaa 0x00000000 - • • • aa = Right gain aa = Left gain aa = Left and right gain Set Index 2 Amp Gain 0x352 0x362 0x372 0xaa 0x00000000 - • • • aa = Right gain aa = Left gain aa = Left and right gain Set Index 3 Amp Gain 0x353 0x363 0x373 0xaa 0x00000000 - • • • aa = Right gain aa = Left gain aa = Left and right gain Audio Widget ADC 0xF00 0x09 0x00100D1B - ADC—analog. PCM Size And Rate 0xF00 0x0A 0x000A0160 - 16-bit and 24-bit/44.1kHz, 48kHz, and 96kHz. PCM Format 0xF00 0x0B 0x00000001 - PCM only. Input Amp Capabilities 0xF00 0x0D 0x8003504A - Mute, 1dB step, 80 steps, and step 74 is 0dB. Connection Length 0xF00 0x0E 0x00000004 0x00000003 - • • Supported Power States 0xF00 0x0F 0x8000000F - EPSS, D0, D1, D2, and D3. Get Connection Select 0xF01 0x00 0x0000000a 0x00000000 (P,W) a = Connection index. Set Connection Select 0x701 0x0a 0x00000000 - a = Connection index. Get Connection List 0x00 0x1E191A18 0x1A151E19 0x00151E19 - • • • 0xF02 aaaa = Converter format. Connected to 4 Node 14 reduces to three connections if node 1A is an analog stereo Node 13 Node 14 Node 14 reduces to three connections if node 1A is an analog stereo Conexant Confidential 03/12/15 004-57DSR01 33 CX20757 Data Sheet Verbs Table 22: Node 13 and 14 Responses (Continued) Description Verb ID Parameter Response Default Value Comments Get Power State 0xF05 0x00 0x00000abc 0x00000433 (P,W) • a = Settings reset • b = Actual state • c = Requested state The settings reset is cleared by this verb or any write to this node. Set Power State 0x705 0x0a 0x00000000 - a = Requested state. Get Converter Stream/ 0xF06 Channel 0x00 0x000000ab 0x00000000 (P, R, V, W, D) • • a = Stream b = Channel position Set Converter Stream/ 0x706 Channel 0xab 0x00000000 - • • a = Stream b = Channel position Get EAPD 0xF0C 0x00 0x0000000a 0x00000000 (P,W) a = Left/right swap. Set EAPD 0x70C 0x0a 0x00000000 - a = Left/right swap. Conexant Confidential 03/12/15 004-57DSR01 34 CX20757 Data Sheet Verbs Node 15: Mixer Widget Table 23: Node 15 Responses Description Verb ID Parameter Response Default Value Comments Get Index 0 Amp Gain 0xB00 0xB20 0x00 0x000000aa 0x000000aa 0x00000000 (P,W) • • a = Right gain a = Left gain Get Index 1 Amp Gain 0xB00 0xB20 0x01 0x000000aa 0x000000aa 0x00000000 (P,W) • • a = Right gain a = Left gain Set Index 0 Amp Gain 0x350 0x360 0x370 0xaa 0x00000000 - • • • a = Right gain a = Left gain a = Left and right gain Set Index 1 Amp Gain 0x351 0x361 0x371 0xaa 0x00000000 - • • • a = Right gain a = Left gain a = Left and right gain Audio Widget Mixer 0xF00 0x09 0x0020050B - Mixer with an input amplifier. Input Amp Capabilities 0xF00 0x0D 0x80034A4A - Mute, 1dB step, 74 steps, and step 74 is 0dB. Connection Length 0xF00 0x0E 0x00000002 - Connected to 2. Supported Power States 0xF00 0x0F 0x8000000F - EPSS, D0, D1, D2, and D3. Get Connection List 0xF02 0x00 0x00001110 - Connected to DAC 1, DAC 2. Get Power State 0xF05 0x00 0x00000abc 0x00000433 (P,W) • a = Settings reset • b = Actual state • c = Requested state The settings reset is cleared by this verb or any write to this node. Set Power State 0x705 0x0a 0x00000000 - a = Requested state. Conexant Confidential 03/12/15 004-57DSR01 35 CX20757 Data Sheet Verbs Node 16: Port A/Vendor Widget The following table describes a pin that has selectable headphone or line drive and supports jack sensing. Table 24: Node 16 Responses Description Verb ID Parameter Response Default Value Comments Audio Widget Pin 0xF00 0x09 0x00400581 0x00F00000 - • • • Get Pin Capabilities 0xF00 0x0C 0x0000001C - Output, HP, jack sense. Connection Length 0xF00 0x0E 0x00000002 - Connected to 2. Supported Power States 0xF00 0x0F 0x8000000F - EPSS, D0, D1, D2, and D3. Get Connection 0xF01 0x00 0x0000000a 0x00000000 (P,W) DAC 1 selected. Set Connection 0x701 0x0a 0x00000000 - • • Get Connection List 0xF02 0x00 0x00001110 - DAC 1, 2. Get Power State 0xF05 0x00 0x00000abc 0x00000433 (P,W) • a = Settings reset • b = Actual state • c = Requested state The settings reset is cleared by this verb or any write to this node. Set Power State 0x705 0x0a 0x00000000 - Get Pin Control 0xF07 0x00 0x000000a0 0x000000C0 (P,W) a = Headphone and output enable. Set Pin Control 0x707 0xa0 0x00000000 - Get Unsolicited Response 0xF08 0x00 0x000000aa 0x00000000 (P,W) aa = Unsolicited enable and tag. Set Unsolicited Response 0x708 0xaa 0x00000000 - aa = Unsolicited enable and tag. Get Pin Sense 0xF09 0x00 0xa0000000 - • • • a = Presence detect 8 = Present 0 = Missing Get Default Config 0xF1C– 0x00 0xF1F 0xaabbccdd 0x0421401F (P) • • • • aa = Config4 bb = Config3 cc = Config2 dd = Config1 Set Default Config 1 0x71C 0xaa 0x00000000 - aa = Config1. Set Default Config 2 0x71D 0xaa 0x00000000 - aa = Config2. Set Default Config 3 0x71E 0xaa 0x00000000 - aa = Config3. Set Default Config 4 0x71F 0xaa 0x00000000 - aa = Config4. Pin—analog Vendor widget Universal jack mode 0 = DAC 1 1 = DAC 2 a = Requested state. a = Headphone and output enable. Conexant Confidential 03/12/15 004-57DSR01 36 CX20757 Data Sheet Verbs Node 17: Port G The following pin accepts a stereo signal and drives stereo speakers. Table 25: Node 17 Responses Description Verb ID Parameter Response Default Value Comments Audio Widget Pin 0xF00 0x09 0x00400501 - Pin—analog. Get Pin Capabilities 0xF00 0x0C 0x00000010 - Output. Connection Length 0xF00 0x0E 0x00000002 - Connected to 2. Supported Power States 0xF00 0x0F 0x8000000F - EPSS D0, D1, D2, and D3. Get Connection 0xF01 0x00 0x0000000a 0x00000000 (P,W) DAC 1 selected. Set Connection 0x701 0x0a 0x00000000 - • • Get Connection List 0xF02 0x00 0x00001110 - Connected to DAC 1, 2. Get Power State 0xF05 0x00 0x00000abc 0x00000433 (P,W) • a = Settings reset • b = Actual state • c = Requested state The settings reset is cleared by this verb or any write to this node. Set Power State 0x705 0x0a 0x00000000 - Get Pin Control 0xF07 0x00 0x000000a0 0x00000040 (P,W) a = Output enable. Set Pin Control 0x707 0xa0 0x00000000 - a = Output enable. Get Default Config 0xF1C– 0x00 0xF1F 0xaabbccdd 0x90170010 (P) • • • • Set Default Config 1 0x71C 0xaa 0x00000000 - aa = Config1. Set Default Config 2 0x71D 0xaa 0x00000000 - aa = Config2. Set Default Config 3 0x71E 0xaa 0x00000000 - aa = Config3. Set Default Config 4 0x71F 0xaa 0x00000000 - aa = Config4. 0 = DAC 1 1 = DAC 2 a = Requested state. aa = Config4 bb = Config3 cc = Config2 dd = Config1 Conexant Confidential 03/12/15 004-57DSR01 37 CX20757 Data Sheet Verbs Node 18: Port B Widget Table 26 describes a stereo input pin that can be configured to be a line input or a microphone input. There is a microphone boost control and micbias. This pin supports jack sensing. Table 26: Node 18 Response Description Verb ID Parameter Response Default Value Comments Get Amp Gain 0xB00 0xB20 0x00 0x000000aa 0x000000aa 0x00000000 (P,W) • • aa = Right gain aa = Left gain Set Amp Gain 0x350 0x360 0x370 0xaa 0x00000000 - • • • aa = Right gain aa = Left gain aa = Left and right gain Audio Widget Pin 0xF00 0x09 0x0040048B 0x0040058B - • • Pin—analog Add Connection list (universal jack mode) Get Pin Capabilities 0xF00 0x0C 0x00000024 0x0000003C 0x00001124 0x0000113C No bias Merge mode Bias mapped HP and bias • • • • Input, jack sense In/out, jack sense Vref, Input, jack sense Everything above Input Amp Capabilities 0xF00 0x0D 0x002F0300 - 12dB step, four steps, and step 0 is 0dB. Connection Length 0xF00 0x0E 0x00000002 Merge mode Connected to 2. Supported Power States 0xF00 0x0F 0x8000000F - EPSS, D0, D1, D2, and D3. Get Connection 0xF01 0x00 0x0000000a 0x00000000 (P,W) • • DAC 1 selected Merge mode only Set Connection 0x701 0x0a 0x00000000 - • • • 0 = DAC 1 1 = DAC 2 Merge mode only Get Connection List 0xF02 0x00 0x00001110 - • • DAC 1, 2 Merge mode only Get Power State 0xF05 0x00 0x00000abc 0x00000433 (P,W) • a = Settings reset • b = Actual state • c = Requested state The settings reset is cleared by this verb or any write to this node. Set Power State 0x705 0x0a 0x00000000 - Get Pin Control 0xF07 0x00 0x000000aa 0x00000000 (P,W) Vref, aa = Input enable output, HP (merge mode). Set Pin Control 0x707 0xaa 0x00000000 - Get Unsolicited Response 0xF08 0x00 0xaa 0x00000000 (P,W) aa = Unsolicited enable and tag. Set Unsolicited Response 0x708 0xaa 0x00000000 - aa = Unsolicited enable and tag. Get Pin Sense 0xF09 0x00 0xa0000000 - • • • a = Requested state. Vref, aa = Input enable output, HP (merge mode). a = Presence detect 8 = Present 0 = Missing Conexant Confidential 03/12/15 004-57DSR01 38 CX20757 Data Sheet Verbs Table 26: Node 18 Response (Continued) Description Verb ID Parameter Response Default Value Comments Get Default Config 0xF1C– 0x00 0xF1F 0xaabbccdd 0x048130F0 (P) • • • • aa = Config4 bb = Config3 cc = Config2 dd = Config1 Set Default Config 1 0x71C 0xaa 0x00000000 - aa = Config1. Set Default Config 2 0x71D 0xaa 0x00000000 - aa = Config2. Set Default Config 3 0x71E 0xaa 0x00000000 - aa = Config3. Set Default Config 4 0x71F 0xaa 0x00000000 - aa = Config4. Conexant Confidential 03/12/15 004-57DSR01 39 CX20757 Data Sheet Verbs Node 19: Port D Widget Table 27 describes a stereo pin that can be configured to be a line input or a microphone input. There is a microphone boost control and micbias. Table 27: Node 19 Response Description Verb ID Parameter Response Default Value Comments Get Amp Gain 0xB00 0xB20 0x00 0x000000aa 0x000000aa 0x00000000 (P,W) • • aa = Right gain aa = Left gain Set Amp Gain 0x350 0x360 0x370 0xaa 0x00000000 - • • • aa = Right gain aa = Left gain aa = Left and right gain Audio Widget Pin 0xF00 0x09 0x0040048B - Pin—analog. Get Pin Capabilities 0xF00 0x0C 0x00001124 0x00001120 Headset enabled • • Input Amp Capabilities 0xF00 0x0D 0x002F0300 - 12dB step, four steps, and step 0 is 0dB. Supported Power States 0xF00 0x0F 0x8000000F - EPSS, D0, D1, D2, and D3. Get Power State 0xF05 0x00 0x00000abc 0x00000433 (P,W) • a = Settings reset • b = Actual state • c = Requested state The settings reset is cleared by this verb or any write to this node. Set Power State 0x705 0x0a 0x00000000 - Get Pin Control 0xF07 0x00 0x000000aa 0x00000000 (P,W) aa = Vref, input enable. Set Pin Control 0x707 0xaa 0x00000000 - Get Unsolicited Response 0xF08 0x00 0xaa 0x00000000 (P,W) aa = Unsolicited enable and tag. Set Unsolicited Response 0x708 0xaa 0x00000000 - aa = Unsolicited enable and tag. Get Pin Sense 0xF09 0x00 0xa0000000 - • • • a = Presence detect 8 = Present 0 = Missing Get Default Config 0xF1C0xF1F 0x00 0xaabbccdd 0x04A190F0 (P) • • • • aa = Config4 bb = Config3 cc = Config2 dd = Config1 Set Default Config 1 0x71C 0xaa 0x00000000 - aa = Config1. Set Default Config 2 0x71D 0xaa 0x00000000 - aa = Config2. Set Default Config 3 0x71E 0xaa 0x00000000 - aa = Config3. Set Default Config 4 0x71F 0xaa 0x00000000 - aa = Config4. Vref, in, jack sense Vref, in a = Requested state. aa = Vref, input enable. Conexant Confidential 03/12/15 004-57DSR01 40 CX20757 Data Sheet Verbs Node 1A: Port C Widget Port C is either an internal digital or analog microphone. The analog microphone has an option to send the left channel to both a left and right, mono microphone connection. Analog microphone is the reset default. Table 28: Node 1A Responses Description Verb ID Parameter Response Default Value Get Amp Gain 0xB00 0xB20 0x00 0x000000aa 0x00000000 (P,W) • • 0x000000aa aa = Right gain aa = Left gain Set Amp Gain 0x350 0x360 0x370 0xaa 0x00000000 - • • • aa = Right gain aa = Left gain aa = Left and right gain Audio Widget Pin 0xF00 0x09 0x0040048B - Pin—analog. Get Pin Capabilities 0xF00 0x0C 0x00001120 0x00000020 • • Input Amp Capabilities 0xF00 0x0D 0x002F0300 - 12dB step, four steps, and step 0 is 0dB. Supported Power States 0xF00 0x0F 0x8000000F - EPSS D0, D1, D2, and D3. Get Power State 0xF05 0x00 0x00000abc 0x00000433 (P,W) • a = Settings reset • b = Actual state • c = Requested state The settings reset is cleared by this verb or any write to this node. Set Power State 0x705 0x0a 0x00000000 - Get Pin Control 0xF07 0x00 0x000000aa 0x00000000 (P,W) • • aa = Vref, input enable aa = Input enable (digital microphone mode) Set Pin Control 0x707 0xaa 0x00000000 - • • aa = Vref, input enable aa = Input enable (digital microphone mode) Get Default Config 0xF1C– 0x00 0xF1F 0xaabbccdd • • • • aa = Config4 bb = Config3 cc = Config2 dd = Config1 Set Default Config 1 0x71C 0xaa 0x00000000 - aa = Config1. Set Default Config 2 0x71D 0xaa 0x00000000 - aa = Config2. Set Default Config 3 0x71E 0xaa 0x00000000 - aa = Config3. Set Default Config 4 0x71F 0xaa 0x00000000 - aa = Config4. 0x90A700F0 (P) Comments Analog—Vref, input Digital—Input (digital microphone mode) a = Requested state. Conexant Confidential 03/12/15 004-57DSR01 41 CX20757 Data Sheet Ordering Information Ordering Information The following table shows the ordering information (device order part number and the supported functions). Table 29: CX20757 Ordering Information and Functions Model/Order/Part Numbers Supported Functions Audio Device CODEC Part Order Number Number Revision Audio CODEC Package Type Integrated Stereo Class-D Amplifier Number of DACs/ADCs CX20757-11Z -11Z 40-QFN Yes 4/4 CX20757 Operating Temperature 0 to 70°C Note: All devices are lead-free (Pb-free) and RoHS-compliant, and are compatible with leaded re-flow processes. Contact the local Conexant Sales office for advanced software options. www.conexant.com Headquarters: 1901 Main Street, Suite 300 Irvine, CA,92614 General Information: U.S. and Canada: 888-855-4562 | International: 1 + 949-483-3000 © 2015 Conexant Systems, Inc. Information in this document is provided in connection with Conexant Systems, Inc. (“Conexant”) products. These materials are provided by Conexant as a service to its customers and may be used for informational purposes only. Conexant assumes no responsibility for errors or omissions in these materials. 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