AD1882A High Definition Audio Codec Data Sheet DSH-202011C November 2009 Ordering Information Device Set Order ID Package Type Operating Temperature Package AD1882AJCPZ* QFN 48-Lead QFN, 7x7 mm 0 C to 70 C AD1882AJCIZ* QFN 48-Lead QFN, 7x7 mm -20 C to 85 C *Lead-free (Pb Free) and RoHS compliant Revision History Revision Date Description A February 27, 2009 Initial release B November 30, 2009 Revision B release C December 8, 2009 Revision C release (c) 2009, Conexant Systems, Inc. All Rights Reserved. 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. Conexant may make changes to this document at any time, without notice. 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For additional disclaimer information, please consult Conexant's Legal Information posted at www.conexant.com which is incorporated by reference. Conexant Lead-free products are China RoHS Compliant: Reader Response: Conexant strives to produce quality documentation and welcomes your feedback. Please send comments and suggestions to tech.pubs@conexant.com. For technical questions, contact your local Conexant sales office or field applications engineer. 2 Conexant DSH-202011C 12/8/09 AD1882A High Definition Audio Codec The AD1882A audio codec and software provide superior HD audio quality that exceeds Vista Premium performance. The AD1882A has six DACs and four ADCs, two stereo headphone ports, C/LFE swapping, digital and analog PCBeep, and S/ PDIF output, making the AD1882A the right choice for desktop and notebook PCs where performance is the primary consideration. Distinguishing Features The jack retasking feature on this product supports various configurations, including platforms for 5.1 on 5 or 3 jacks, and front-panel jack retasking. The AD1882A is available in a 48-lead Pb-free lead frame chip scale package in both reels and trays. See the Ordering Information table on the previous page Optional Software Features The AD1882A audio codec also supports the following additional software features: Voice input enhancements: Andrea Electronics best-in-class noise reduction, beam forming, and echo cancellation Output enhancements: Sensaura/Sonic Focus, spreading/downmixing, MP3 refinement, adaptive dynamics, compressor/limiter, speaker/graphic EQ, Voice Clarity/X-MatrixTM, AGC, UI tuning tools DTS(R), SRS(R), Virage Logic's Sonic FocusTM Functional Block Diagram S/PDIF Tx S/PDIF OUT Digital PCBeep HD Audio Interface DAC0 DAC1 DAC2 Port G MONO OUT Digital Microphone DM_CLK Port F HP HP Port D Port A DM_DATA Port C Port E ADC0 PCBeep ADC1 Port B CD IN DSH-202011C 12/8/09 Conexant Six 192 kHz, 95 dB DACs - All independent sample rates, 8 kHz through 192 kHz - 16-, 20-, and 24-bit PCM resolution - Selectable stereo mixer on outputs Four 192 kHz, 90 dB ADCs - Simultaneous record of up to 2 stereo channels - All independent sample rates, 8 kHz through 192 kHz - 16-, 20-, and 24-bit resolution S/PDIF Output - Supports all sample rates 44.1 kHz through 192 kHz - 16-, 20-, and 24-bit data widths; PCM and AC3 formats - Digital PCM gain control Dedicated auxiliary pins - Stereo CD input w/GND sense - Mono out pin for internal speaker with EAPD support - Analog PCBeep input pin Stereo digital microphone - Two 192 kHz digital microphone channels - Supports 1 or 2 microphones on 1 pin - Selectable bit clock rates of 1.5 MHz, 2.0 MHz, and 3.0 MHz All sample rates, 8 kHz through 192 kHz - 16-, 20-, and 24-bit resolution Microsoft Vista Premium(R) logo for notebook and desktop Impedance and presence detection on all jack pins 2 general-purpose digital I/O (GPIO) pins Advanced power management modes EAPD control for internal speakers 3.3 V analog and digital supply voltage 1.5 V and 3.3 V HD Audio link signaling Very low power consumption in D3 state 3 4 Conexant DSH-202011C 12/8/09 Contents Figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1 High Definition Audio Codec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 DSH-202011C 12/8/09 Jack Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1.2.1 HD Audio Link Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 1.2.2 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 1.2.3 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Pin Configuration and Functional Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Digital Microphone Interface Timing Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 HD Audio Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 HD Audio Widgets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Default Configuration Bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Conexant 5 AD1882A Data Sheet 6 Conexant DSH-202011C 12/8/09 Figures Figure 1. Figure 2. Figure 3. Figure 4. DSH-202011C 12/8/09 AD1882A Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Uniplex Microphone Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Multiplex Microphone Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Conexant Conexant Proprietary and Confidential 7 Figures 8 AD1882A Data Sheet Conexant Conexant Proprietary and Confidential DSH-202011C 12/8/09 Tables Table 1. Table 2. Table 4. Table 5. Table 3. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. DSH-202011C 12/8/09 Typical Desktop Configuration with Discreet Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Typical Desktop Configuration with 5.1 on 3 Jacks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Typical Notebook Configuration with Digital Microphone . . . . . . . . . . . . . . . . . . . . . . . . 12 Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Typical Notebook Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 General Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Power-Down States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Pin Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Microphone Timing Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Root and Function Node Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 SubSystem ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 HD Audio Widgets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Default Configuration Bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Conexant Conexant Proprietary and Confidential 9 Tables 10 AD1882A Data Sheet Conexant Conexant Proprietary and Confidential DSH-202011C 12/8/09 1 High Definition Audio Codec This data sheet provides a general overview of the AD1882A codec's architecture and functionality. Additional information on the AD1882A is available in the AD1882A Programmers Reference Manual. Please contact your local Conexant sales representative for more information. 1.1 Jack Configuration Use the guidelines shown in Tables 1 through 4 when selecting ports for particular functions. Table 1. Typical Desktop Configuration with Discreet Jacks Port Table 2. Function Port A Front Panel Headphone Port B Front Panel Microphone Port C Rear Panel Line-In Port D Rear Panel Line-Out/Headphone Port E Rear Panel Microphone Port F Rear Panel Surround Port G Rear Panel C/LFE Typical Desktop Configuration with 5.1 on 3 Jacks Port DSH-202011C 12/8/09 Function Port A Front Panel Headphone Port B Front Panel Microphone Port C Rear Panel Line-In/Surround Port D Rear Panel Line-Out/Headphone Port E Rear Panel Microphone / C/LFE Conexant 11 High Definition Audio Codec AD1882A Data Sheet Table 3. Typical Notebook Configuration Port Table 4. Function Port A Headphone Port B Microphone Port C Internal Microphone Port D Internal Stereo Speakers Port E Docking Station Line-In/Microphone Typical Notebook Configuration with Digital Microphone Port 1.2 Table 5. Function Port A Headphone Port B Microphone Digital Microphone Internal Microphone Port D Internal Stereo Speakers Port E Docking Station Line-In/Microphone Specifications Test Conditions Parameter Test Condition Temperature Digital Supply Analog Supply MIC_BIAS_IN (via Low-Pass Filter) Sample Rate fS Input Signal (Frequency Sine Wave) Amplitude for THD + N Analog Output Pass Band 25C 3.3 V 3.3 V 5.0 V 48 kHz 1008 Hz -3.0 dB Full Scale 20 Hz to 20 kHz DAC 10 k Output Load: Line Out Tests 32 Output Load: Headphone Tests ADC 0 dB Gain 12 Conexant DSH-202011C 12/8/09 AD1882A Data Sheet Table 6. High Definition Audio Codec Performance Parameter Min Typ Max Unit Line-Out Drive (10 k Loads--DAC to Pin) Total Harmonic Distortion (THD + N) Dynamic Range (-60 dB in Ref to fS A-Weighted) Signal-to-Noise Ratio -85 95 95 dB dB dB Headphone Drive (32 Loads--DAC to Pin) Total Harmonic Distortion (THD + N) Dynamic Range (-60 dB in Ref to fS A-Weighted) Signal-to-Noise Ratio -83 95 95 dB dB dB Input Ports (Pin to ADC, Mic Boost = 0 dB) Total Harmonic Distortion (THD + N) Dynamic Range (-60 dB in Ref to fS A-Weighted) Signal-to-Noise Ratio -81 90 90 dB dB dB Table 7. General Specifications (1 of 4) Parameter Min Typ Max Unit Digital Decimation and Interpolation Filters--fS = 8 kHz to 96 kHz(1) Pass Band 0 Pass-Band Ripple Stop Band 0.4 fS Hz 0.005 dB 0.6 fS Hz Stop-Band Rejection -100 dB Group Delay +20 1/fS Group Delay Variation Over Pass Band 0 s 24 Bits Analog-to-Digital Converters Resolution Gain Error (Full-Scale Span Relative to Nominal Input Voltage)(2) 10 % Interchannel Gain Mismatch (Difference of Gain Errors) 0.5 dB ADC Offset Error(1) 5 mV ADC Crosstalk(1) Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L) -85 Line Inputs to Other -100 DSH-202011C 12/8/09 Conexant dB -80 dB 13 High Definition Audio Codec Table 7. AD1882A Data Sheet General Specifications (2 of 4) Parameter Min Typ Max Unit Digital to Analog Converters Resolution 24 Bits Gain Error (Full-Scale Span Relative to Nominal Input Voltage)(1) 10 % Interchannel Gain Mismatch (Difference of Gain Errors) 0.5 dB DAC Crosstalk (Input L, Zero R, Read R_OUT; Input R, Zero L, Read L_OUT)(1) -95 dB 1.5 dB DAC Volumes Step Size (DAC-0, DAC-1, DAC-2) Output Gain/Attenuation Range -58.5 Mute Attenuation of 0 dB Fundamental(1) 0 dB -80 dB 1.5 dB ADC Volumes Step Size (ADCSEL-0, ADCSEL-1) PGA Gain/Attenuation Range -58.5 Mute Attenuation of 0 dB Fundamental(1) +22.5 dB -80 dB Signal-to-Noise Ratio (SNR) Input to Output 95 dB Step Size: All Mixer Inputs 1.5 dB Analog Mixer Input Gain/Attenuation Range: All Mixer Inputs -34.5 +12.0 dB Analog Line Level Outputs Full-Scale Output Voltage 1.0 Ports C, E, F, and G Mono Out 2.83 V p-p Output Impedance(1) External Load Impedance(1) Output Capacitance(1) External Load Capacitance(1) 14 Conexant Vrms(3) 1.0 300 10 k 15 pF 1000 pF DSH-202011C 12/8/09 AD1882A Data Sheet Table 7. High Definition Audio Codec General Specifications (3 of 4) Parameter Min Typ Max Unit Analog HP Drive Outputs Full-Scale Output Voltage 1.0 Vrms(3) Ports A and D 2.83 V p-p Output Impedance(1) External Load Impedance(1) 0.5 32 Output Capacitance(1) 15 External Load Capacitance(1) pF 1000 pF Analog Inputs CD, Port D (When Used as Input) 1 2.83 Vrms(3) V p-p Microphone Boost Amplifier, Ports B, C, or E Boost = 0 dB (When Used as Inputs) 1 2.83 Vrms(3) V p-p Boost = 10 dB 0.316 0.894 Vrms(3) V p-p Boost = 20 dB 0.1 0.283 Vrms(3) V p-p Boost = 30 dB 0.032 0.089 Vrms(3) V p-p Input Impedance(1) 20 k Input Capacitance(1) 5 7.5 pF V Digital GPIO Pins: GPIO_0, GPIO_1/EAPD Input Signal High (VIH) DVGPIO x0.60 DVGPIO Input Signal Low (VIL) 0 DVGIPO x 0.24 V Input Leakage Current (Signal High, (IIH) 150 nA Input Leakage Current (Signal Low, (IIL) 50 A Output Signal High (VOH) IOUT = -500 A DVIO x 0.72 DVGPIO Output Signal Low (VOL) IOUT = +1500 A 0 DVGPIO x0.10 V V DM_CLK Output Signal High (VOH) IOUT = -500 A DVIO x 0.72 DVGPIO Output Signal Low (VOL) IOUT = +1500 A 0 DVGPIO x 0.10 V DSH-202011C 12/8/09 Conexant V 15 High Definition Audio Codec Table 7. AD1882A Data Sheet General Specifications (4 of 4) Parameter Min Typ Max Unit DM_DATA Input Signal High (VIH) DVGPIO x0.60 DVGPIO Input Signal Low (VIL) 0 DVGIPO x 0.24 V V Input Leakage Current (Signal High, (IIH) 150 nA Input Leakage Current (Signal Low, (IIL) 50 A S/PDIF_OUT Output Signal High (VOH) IOUT = -500 A DVGPIO x0.72 DVGPIO Output Signal Low (VOL) IOUT = +1500 A 0 DVGPIO x 0.10 V V Power Supply Analog (AVDD) 3.3 V 5% Power Supply Range Power Dissipation Supply Current Digital (DVDD) 3.3 V 10% Power Supply Range Power Dissipation Supply Current Digital I/O (DVIO) 3.3 V 10% Power Supply Range Power Dissipation Supply Current Digital I/O (DVIO) 1.5 V 5.5% Power Supply Range Power Dissipation Supply Current Digital I/O (DVGPIO) 3.3 V 10% Power Supply Range Power Dissipation Supply Current Power Supply Rejection (100 mV p-p Signal @ 1 kHz)(1) 3.13 3.30 116 35 3.46 V mW mA 2.97 3.30 162 49 3.63 V mW mA 2.97 3.30 3.96 1.20 3.63 V mW mA 2.97 3.30 3.96 1.20 3.63 V mW mA 2.97 3.30 3.63 1.10 3.63 V mW mA 80 dB FOOTNOTES: (1) Guaranteed but not tested. (2) Measurements reflect ADC. (3) RMS values assume sine wave input. 16 Conexant DSH-202011C 12/8/09 AD1882A Data Sheet 1.2.1 High Definition Audio Codec HD Audio Link Specifications HD Audio signals comply with the High Definition Audio specifications. Please refer to these specifications at www.intel.com/standards/hdaudio. Table 8. Power-Down States Parameter IDVDD Typ IAVDD Typ Unit Function Node In D0, All Nodes Active 49 35 mA Function Node in D3 16 0.7 mA Codec in RESET 3 3 mA Individual block power savings DAC Pair Powered Down Saves (Each) ADC Pair Powered Down Saves (Each) Mixer Power Control (and Associated Amps) Saves MIC_BIAS Powered Down Saves(1) 6 5 0 0 6 4.4 3 1.0 mA mA mA mA FOOTNOTES: (1) Powering down the MIC_BIAS powers down all port MIC_BIAS pins. This disables all microphone bias circuits set to 100% or 50%, setting them to the high-Z state. DSH-202011C 12/8/09 Conexant 17 High Definition Audio Codec 1.2.2 AD1882A Data Sheet Absolute Maximum Ratings Stresses greater than those listed below may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 9. Absolute Maximum Ratings Power Supplies Rating Digital (DVDD) -0.30 V to +3.65 V Digital I/O (DVIO) -0.30 V to +3.65 V Digital I/O (DVGPIO) -0.30 V to +3.65 V Analog (AVDD) -0.30 V to +3.65 V Input Current (Except Supply Pins) 10.0 mA Analog Input Voltage (Signal Pins) -0.30 V to AVDD + 0.3 V Digital Input Voltage (Signal Pins) -0.30 V to DVIO + 0.3 V Ambient Temperature (Operating) 0 C to +70 C -20C to +85C Commercial (AD1882AJCPZ) Extended Temperature (AD1882AJCIZ) Storage Temperature -65 C to +150 C Electrostatic Discharge Device (ESD) CAUTION 1.2.3 Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Environmental Conditions Ambient Temperature Rating: TAMB = TCASE - (PD x CA) TCASE = case temperature in C PD = power dissipation in W CA = thermal resistance (case-to-ambient) JA = thermal resistance (junction-to-ambient) JC = thermal resistance (junction-to-case) All measurements per EIA-JESD51 with 2S2P test board per EIA-JESD51-7. JA Package QFN 18 47 JC 15 CA 32 Conexant Unit C/W DSH-202011C 12/8/09 AD1882A Data Sheet 1.3 Pin Configuration and Functional Descriptions 43 RESERVED (NC) 44 AV DD PORT-G_L 45 PORT-A_L PORT-G_R 46 MONO_OUT DM_DATA 47 AVSS DM_CLK 48 PORT-A_R GPIO_1/EAPD AD1882A Pinout S/PDIF-OUT Figure 1. High Definition Audio Codec 42 41 40 39 38 37 DV CORE 1 36 PORT-D_R GPIO_0 2 35 PORT-D_L DV GPIO 3 34 SENSE_B/SRC_A DV IO 4 33 MIC_BIAS_IN SDATA_OUT 5 32 RESERVED (NC) BIT_CLK 6 31 MIC_BIAS-E 30 RESERVED (NC) DV SS AD1882AJCPZ TOP VIEW 7 (Not To Scale) DSH-202011C 12/8/09 AVSS 25 AV DD RESET 11 PCBEEP 12 13 14 15 16 17 18 19 20 21 22 23 24 PORT-C_R VREF_FLT 26 PORT-C_L 27 PORT-B_R 10 CD_R SYNC PORT-B_L MIC_BIAS-B CD_GND 28 CD_L 9 PORT-F_R DV DD PORT-F_L MIC_BIAS-C PORT-E_R 29 PORT-E_L 8 SENSE_A/SRC_B SDATA_IN Conexant 19 High Definition Audio Codec Table 10. AD1882A Data Sheet Pin Descriptions (1 of 2) Mnemonic Function Pin No. Description Digital Interface SDATA_OUT 5 I Link Serial Data Output. AD1882A input stream. Clocked on both edges of the BIT_CLK. BIT_CLK 6 I Link Bit Clock. 24.000 MHz serial data clock. SDATA_IN 8 I/O Link Serial Data Input. AD1882A output stream Clocked only on one edge of BIT_CLK. SYNC 10 I Link Frame Sync. RESET 11 I Link Reset. AD1882A master hardware reset. Digital I/O GPIO_0 GPIO_1/EAPD SPDIF_OUT 2 47 48 I/O I/O O General-Purpose Input/Output Pin. Digital signal used to control external circuitry. General-Purpose Input/Output Pin/EAPD Pin. Digital signal used to control external circuitry. Defaults to high-Z. When used as EAPD: high-Z = amp-on, DVSS = amp off. S/PDIF_OUT. Supports S/PDIF output. DM_DATA 45 I Digital Microphone Data Input Support for two digital microphones. DM-CLK 46 O Digital Microphone Clock Output. JACK SENSE and EAPD SENSE_A/SRC_B SENSE_B/SRC_A 13 34 I/O I/O JACK SENSE A-D Input/Sense B Drive. JACK SENSE E-H Input/Sense A Drive. Analog I/O PCBEEP 12 LI Monaural Input from System for Analog PCBeep. PORT-E_L 14 LI, MIC, LO, SWAP Auxiliary Input/Output Left Channel. PORT-E_R 15 LI, MIC, LO, SWAP Auxiliary Input/Output Right Channel. PORT-F_L 16 I/O Auxiliary Input/Output Left Channel. PORT-F_R 17 I/O Auxiliary Input/Output Right Channel. CD_L 18 LI CD Audio Left Channel. CD_GND 19 LI CD Audio Analog Ground Reference (for Differential CD Input). Must be connected to AGND via 0.1 mF capacitor if not in use as CD_GND. CD_R 20 LI CD Audio Right Channel. PORT-B_L 21 LI, MIC, HP, LO Front Panel Stereo MIC/Line-In. PORT-B_R 22 LI, MIC, HP, LO Front Panel Stereo MIC/Line-In. PORT-C_L 23 LI, MIC, LO Rear Panel Stereo MIC/Line-In. PORT-C_R 24 LI, MIC, LO Rear Panel Stereo MIC/Line-In. PORT-D_L 35 LI, HP, LO Rear Panel Headphone/Line-Out. PORT-D_R 36 LI, HP, LO Rear Panel Headphone/Line-Out. 20 Conexant DSH-202011C 12/8/09 AD1882A Data Sheet Table 10. High Definition Audio Codec Pin Descriptions (2 of 2) Mnemonic Function Pin No. Description Analog I/O (continued) PORT-A_L 39 LI, MIC, HP, LO Front Panel Headphone/Line-Out. MONO_OUT 40 LO Monaural Output to Internal Speaker or Telephony Subsystem Speakerphone. PORT-A_R 41 LI, MIC, HP, LO Front Panel Headphone/Line-Out. PORT-G_L 43 LO, SWAP Rear Panel C/LFE Output. PORT-G_R 44 LO, SWAP Rear Panel C/LFE Output. Filter/Reference MIC_BIAS-B MIC_BIAS-C MIC_BIAS-E 28 29 31 O O O Switchable Microphone Bias. For use with Port B (Pins 21, 22). Switchable Microphone Bias. For use with Port C (Pins 23, 24). Switchable Microphone Bias. For use with Port E (Pins 14, 15). DVCORE 1 O CAUTION: DO NOT APPLY 3.3 V TO THIS PIN! Filter connection for internal core voltage regulator. This pin must be connected to filter caps: 10 F, 1.0 F, and 0.1 F connected in parallel between Pin 1 and DVSS (Pin 4).D VREF_FLT 27 O Voltage Reference Filter. This pin must be connected to filter caps: 1.0 F and 0.1 F connected in parallel between Pin 27 and AVSS (Pins 26, 42). Power and Ground DVIO 3.3 V + 10% or DVIO 1.5 V + 5.5% 4 I Connect to the I/O Voltage Used for the HD Audio Controller Signals. DVGPIO 3 I Connect to 3.3 V digital supply to power the GPIO and S/PDIF pins. DVSS 7 I Digital Supply Return (Ground). DVDD (3.3 V) 9 I Digital Supply Voltage 3.3 V. This is regulated down to DVCORE on Pin 1 to supply the internal digital core internal to the AD1882A. AVDD (3.3 V) 25, 38 I CAUTION: DO NOT APPLY 5.0 V TO THESE PINS! Analog supply voltage 3.3 V ONLY. Note: AVDD supplies should be well regulated and filtered as supply noise degrades audio performance. 33 I Source Power for Microphone Bias Boost Circuitry. Connect this pin to 5.0 V via a low-pass filter. When connected this way, the AD1882A is capable of providing 3.9 V as a microphone bias to all of the MIC_BIAS pins. If 5 V is not available, connect this pin to 3.3 V (AVDD) via a low-pass filter. 26, 42 I Analog Supply Return (Ground). AVSS should be connected to DVSS using a conductive trace under, or close to, the AD1882A. MIC_BIAS_IN AVSS GENERAL NOTES: 1. The symbols used in this table are defined as follows: I = Input O = Output LI = Line level input LO = Line level output HP = Output capable of driving headphone load MIC = Input supports microphones with MIC bias and boost amplifier SWAP = Outputs can swap L/R channels (typically used to support C/LFE or shared C/LFE function). DSH-202011C 12/8/09 Conexant 21 High Definition Audio Codec 1.4 AD1882A Data Sheet Digital Microphone Interface Timing Specifications The digital microphone interface can support one or two digital microphones using two or three codec pins. Both uniplex (one microphone per data pin) and multiplex (two microphones sharing the same data pin) are supported. The timing for these configurations are shown in Figures 2 and 3. The interface can generate a microphone clock at 1.5 MHz, 2.0 MHz, or 3.0 MHz to suit quality and power requirements. Table 11. Microphone Timing Parameters Parameter Min Typ Max Unit Timing Requirements t0 DM_CLK (1.5 MHz) Period Duty Cycle 667 50/50 ns % t0 DM_CLK (2.0 MHz) Period Duty Cycle 500 50/50 ns % t0 DM_CLK (3.0 MHz) Period Duty Cycle 333 50/50 ns % t1 DM_CLK Rise Time 5 ns t2 DM_CLK Fall Time 5 ns t3 Data Setup to DM_CLK Edge 100 ns t4 Data Hold from DM_CLK Edge 5 ns Figure 2. Uniplex Microphone Timing t0 t1 t2 DM_CLK t3 DATA VALID DM_1/2 Figure 3. t4 Multiplex Microphone Timing t0 t1 t2 DM_CLK t3 t4 DM_DATA LEFT DATA VALID 22 t3 t4 RIGHT DATA VALID Conexant LEFT DATA VALID DSH-202011C 12/8/09 AD1882A Data Sheet 1.5 High Definition Audio Codec HD Audio Parameters The SSID value is set on codec power-up only. SSID is not reset by link or soft reset in order to preserve modifications by BIOS control. Table 12. Root and Function Node Parameters Node ID Name 00 ROOT 01 FUNCTION Vendor ID 00 01 11D4 882A Revision ID 02(1) 03 0010 0100 Sub Node Count 04 Func. Group Type 05 Audio F.G. Caps 08 GPIO Caps 11 0000 0001 0001 0C0C 4000 0002 0001 0001 0002 003B FOOTNOTES: (1) Subject to change with silicon stepping. Table 13. SubSystem ID Node ID 01 Name FUNCTION 31:16 SSID Value BFD20000 BFD2 15:8 SKU 00 7:0 Asm ID 00 GENERAL NOTES: 1. The default SSID is overwritten by platform BIOS after power on. It is preserved across HD Audio link reset and verb reset. DSH-202011C 12/8/09 Conexant 23 High Definition Audio Codec 1.6 AD1882A Data Sheet HD Audio Widgets In Table 14 below, node IDs that are not shown are reserved for future use. Table 14. HD Audio Widgets (1 of 2) Node ID Name Type ID Type Description 00 ROOT x Root Device Identification 01 FUNCTION x Function Designates this Device as an Audio Codec 02 S/PDIF DAC 0 Audio Output S/PDIF Digital Stream Output Interface 03 DAC_0 0 Audio Output Headphone/Surround Side (7.1) Channel Digital/Audio Converters 04 DAC_1 0 Audio Output Stereo Front Channel Digital/Audio Converters 05 DAC_2 0 Audio Output Stereo C/LFE Channel Digital/Audio Converters 08 ADC_0 1 Audio Input Stereo Record Channel 1 Audio/Digital Converters 09 ADC_1 1 Audio Input Stereo Record Channel 2 Audio/Digital Converters 0C ADC Selector 0 3 Audio Selector Selects and Amplifies/Attenuates the Input to ADC0 0D ADC Selector 1 3 Audio Selector Selects and Amplifies/Attenuates the Input to ADC1 10 Digital Beep 7 Beep Generator Internal Digital PCBeep Signal 11 Port A (Headphone) 4 Pin Complex Front Panel Headphone/Microphone Jack 12 Port D (Front L/R) 4 Pin Complex Rear Panel Front/Headphone Jack 13 Mono Out 4 Pin Complex Monaural Output Pin (Internal Speakers or Telephony System) 14 Port B (Front Mic) 4 Pin Complex Front Panel Microphone/Headphone Jack 15 Port C (Line In) 4 Pin Complex Rear Panel Line-In Jack 16 Port F (Surr Back) 4 Pin Complex Rear Panel Surround-Rear (5.1) Jack 17 Port E (Rear Mic) 4 Pin Complex Rear Panel Mic Jack 18 CD In 4 Pin Complex Analog CD Input 19 Mixer Power Down 5 Power Widget Powers Down the Analog Mixer and Associated Amps 1A Analog PCBeep 4 Pin Complex External Analog PCBeep Signal Input 1B S/PDIF Out 4 Pin Complex S/PDIF Output Pin 1E Mono Out Mixer 2 Audio Mixer Selects Which Source Drives the Mono Out Signal 1F Digital Microphone 4 Pin Complex Digital Microphone Interface 20 Analog Mixer 2 Audio Mixer Mixes Individually Gainable Analog Inputs 24 Conexant DSH-202011C 12/8/09 AD1882A Data Sheet Table 14. High Definition Audio Codec HD Audio Widgets (2 of 2) Node ID Name Type ID Type Description 21 Mixer Output Atten 3 Audio Selector Attenuates the Mixer Output to Drive the Port Mixers 22 Port A Mixer 2 Audio Mixer Mixes the Port A Selected DAC and Mixer Output Amps to Drive Port A 23 VREF Power Down F Vendor Defined Powers Down the Internal and External VREF Circuitry 24 Port G (C/LFE) 4 Pin Complex Rear Panel C/LFE Jack 26 Port E Mixer 2 Audio Mixer Mixes DAC1 and Mixer Output Amps to Drive Port E 27 Port G Mixer 2 Audio Mixer Mixes DAC1 and Mixer Output Amps to Drive Port G 29 Port D Mixer 2 Audio Mixer Mixes DAC0 and Mixer Output Amps to Drive Port D 2A Port F Mixer 2 Audio Mixer Mixes DAC2 and Mixer Output Amps to Drive Port F 2C Port C Mixer 2 Audio Mixer Mixes the Port C Selected DAC and Mixer Output Amps to Drive Port C 2D Stereo Mix Down 2 Audio Mixer Mixes the Stereo L/R Channels to Drive Mono Output 2F BIAS Power Down F Vendor Defined Powers Down the Internal MIC_BIAS_IN and all MIC_BIAS Pins 37 Port A Out Selector 3 Audio Selector Selects the Port A DAC (0, 1) 39 Port B Boost 3 Audio Selector Microphone Boost Amp for Port B 3A Port C Boost 3 Audio Selector Microphone Boost Amp for Port C 3C Port E Boost 3 Audio Selector Microphone Boost Amp for Port E DSH-202011C 12/8/09 Conexant 25 High Definition Audio Codec 1.7 AD1882A Data Sheet Default Configuration Bytes In Table 15, default configuration values are set on codec power-up only. Default configuration values are not reset by link or soft reset to preserve modifications by BIOS control. Table 15. Default Configuration Bytes 31:30 Name 29:28 27:24 23:20 19:16 15:12 8 7:4 3:0 JD Over Ride Def Assn Sequence Location Value Connectivity Misc. Def. Device Conn Type Front HP Out 1/8" Jack Green 0 1 F External Rear Line Out 1/8" Jack Green 0 1 0 0x9017 01F0 Fixed Internal N/A Speaker Other Analog Unknown 1 F 0 Port B (Front Mic) 0x02A1 90F0 Jack External Front Mic In 1/8" Jack Pink 0 F 0 Port C (Line In) 0x0181 3021 Jack External Rear Line In 1/8" Jack Blue 0 2 1 Port F (Surr Back) 0x0101 1012 Jack External Rear Line Out 1/8" Jack Black 0 1 2 Port E (Rear Mic) 0x01A1 9020 Jack External Rear Mic In 1/8" Jack Pink 0 2 0 CD IN 0x9933 012E Fixed Internal Special 3 CD ATAPI Unknown 1 2 E Analog PCBeep 0x90F7 01F0 Fixed Internal N/A Other Other Analog Unknown 1 F 0 S/PDIF Out 0x0145 11F0 Jack External Rear SPDIF Out Optical Black 1 F 0 Digital Microphone 0x97A6 09F0 Fixed Internal Special 1 Mic In Other Digital Unknown 1 F 0 Port G (C/LFE) 0x0101 6011 Jack External Rear Line Out 1/8" Jack Orange 0 1 1 Chasis Position Port A (Headphone) 0x0221 401F Jack External Port D (Front L/R) 0x0101 4010 Jack Mono Out 26 Conexant Color DSH-202011C 12/8/09 AD1882A Data Sheet 1.8 High Definition Audio Codec Package Dimensions Figure 4 provides the package dimensions, shown in millimeters Figure 4. Package Dimensions 48-Lead QFN Package 7 x 7 mm Dimensions shown in millimeters 7.00 BSC SQ 0.60 MAX 0.60 MAX 37 36 PIN 1 INDICATOR TOP VIEW 12 MAX PIN 1 INDICATOR 48 1 EXPOSED PAD 6.75 BSC SQ 5.25 5.10 SQ 4.95 (BOTTOM VIEW) 0.50 0.40 0.30 1.00 0.85 0.80 0.30 0.23 0.18 25 24 12 13 0.25 MIN 5.50 REF 0.80 MAX 0.65 TYP 0.05 MAX 0.02 NOM 0.50 BSC SEATING PLANE 0.20 REF COPLANARITY 0.08 COMPLIANT TO JEDEC STANDARDS MO-220-VKKD-2 DSH-202011C 12/8/09 Conexant 27 High Definition Audio Codec 28 AD1882A Data Sheet Conexant DSH-202011C 12/8/09 www.conexant.com General Information: U.S. and Canada: (888) 855-4562 International: (949) 483-4600 Headquarters - Newport Beach 4000 MacArthur Blvd. Newport Beach, CA 92660