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ad1989a high definition audio codec data sheet dsh-202088b january 2010
2 conexant dsh-202088b 1/4/10 ? 2009, 2010 , conexant systems, inc. all rights reserved. information in this document is provided in connection with c onexant systems, inc. (?conexant?) products. these materials are p rovided by conexant as a service to its customers and may be used for inform ational 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. conexant advises all cus tomers to ensure that they have the latest version of this document and to verify, before placing orders , that information being relied o n is current and complete. conexant makes no commitment to update the information and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to its specifications and product descriptions. no license, express or implied, by est oppel or otherwise, to any intellectual pr operty rights is granted by this document. exce pt as provided in conexant?s terms and conditions of sale for such products, conexant assumes no liability whatsoever. these materials are provided ?as is? wi thout warranty of any kind, either express or implied, relating to sale and/or use of conexant products incl uding liability or warranties relating to fitness for a particular purpose, consequential or incidental damages, merchant ability, or infringement of any patent, copyright or other intellectual property right. conexant further does not warrant the accuracy or completeness of the information, text, gr aphics or other items cont ained within these materi als. conexant shall not be liable for any special, indirect, incidental, or conseq uential damages, including without limitation, lost revenues or lost profits, which may r esult from the use of these materials. conexant products are not intended for use in medical, lifesaving or life sustaining applications. conexant customers using or selling conexant products for use in such applications do so at their own risk and agree to fully indemnify conexant for any damages resulting f rom such improper use or sale. the following are trademarks of conexant systems, inc.: conexant ? and the conexant c symbol. product nam es or services listed in this publication are for identification purposes only, and may be trademarks of third parties. third-party brands and names are the property of their respective owners. for additional disclaimer informat ion, 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 feedbac k. please send comments and suggestions to tech.pubs@conexant.com . for technical questions, contact your local conex ant sales office or field applications engineer. ordering information revision history device set order id package type package operating temperature AD1989AJCPZ* qfn 48-lead qfn, 7x7 mm 0c to 70c *lead-free (pb free) and rohs compliant revision date description a march 2, 2009 initial release b january 4, 2010 revision b release
dsh-202088b conexant 3 1/4/10 ad1989a high definition audio codec the ad1989a audio codec and software prov ide superior hd audio quality that exceeds vista premium performance. the ad1989a has eight 101 db dacs and six 92 db adcs, three stereo headphone ports, c/lfe swapping, a 2-channel digital microphone interface, digital and analog pcbeep, two independent s/pdif outputs, and a s/pdif input, making the ad1989a the right choice for pcs where performance is the primary consideration. the jack retasking feature on this product s upports various configurations including 5.1 on 3 jacks, and fron t panel jack retasking. the ad1989a is available in a 48-lead rohs compliant lead frame chip scale package in both reels and trays. see the ordering information table on the previous page. optional software features the ad1989a 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, compre ssor/limiter, speaker/graphic eq, voice clarity/x-matrix tm , agc, ui tuning tools ? dts ? , srs ? , virage logic's sonic focus tm functional block diagram adc0 adc1 adc2 s/pdif tx s/pdif tx s/pdif rx s/pdif out 1 s/pdif out 2 (hdmi) s/pdif in digital and analog pcbeep hd audio interface gpio and eapd digital microphone dm_data dm_clk dac0 dac1 dac2 dac3 port f port g mono out port d port b port c port e por t a ditinguihing feature ? eight 192 khz, 101 db dacs ? 5.1 surround sound plus independent headphone ? all independent sample rates, 8 khz through 192 khz ? selectable stereo mixer on outputs ? 16-, 20-, and 24-bit resolution ? six 192 khz, 92 db adcs ? simultaneous record of up to 3 stereo channels ? all independent sample rates, 8 khz through 192 khz ? 16-, 20-, and 24-bit resolution ? s/pdif output ? 2 independent transmitters, second s/pdif can support external hdmi interface ? supports 44.1 khz through 192 khz sample rates ? 16-, 20-, and 24-bit data; pcm, and ac3 formats ? digital pcm gain control ? s/pdif input ? supports 44.1 khz through 192 khz sample rates ? 16-, 20-, and 24-bit data; pcm, and ac3 formats ? digital pcm gain control ? auto synchronizes to source sample rate ? 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 ? dedicated auxiliary pins ? stereo cd/auxiliary i/o port w/ gnd sense ? mono_out pin for internal speaker with eapd support ? microsoft vista premium ? logo ? presence detection up to 9 jacks ? three stereo headphones ? impedance and presence detection; retasking ? 5 adjustable microphone bias pins ? 3 general-purpose digital i/o (gpio) pins (continued on the next page)
4 conexant dsh-202088b 1/4/10 (continued from previous page) ? digital and analog pcbeep ? multiple eapd pins for external circuit control ? 3.3 v analog and digital supply voltages ? 1.5 v and 3.3 v hd audio link signaling ? advanced power management modes
dsh-202088b conexant 5 1/4/10 conexant proprietary and confidential contents figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1 high definition audio codec. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1.1 jack configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 1.2 specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.3 hd audio link specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 1.4 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 1.5 environmental conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 1.6 pin configuration and function descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 1.7 digital microphone interface timing specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 1.8 hd audio widgets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 1.9 hd audio parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 1.10 default configuration bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 1.11 package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
ad1989a data sheet 6 conexant dsh-202088b conexant proprietary and confidential 1/4/10
dsh-202088b conexant 7 1/4/10 conexant proprietary and confidential figures figure 1. ad1989a pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 figure 2. uniplex microphone timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 figure 3. multiplex microphone timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 figure 4. 48-lead qfn package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
ad1989a data sheet 8 conexant dsh-202088b conexant proprietary and confidential 1/4/10
dsh-202088b conexant 9 1/4/10 conexant proprietary and confidential tables table 1. typical desktop applications with discreet jacks (default configuration) . . . . . . . . . . . 11 table 2. typical desktop retasking to support shared in put/5.1 jacks. . . . . . . . . . . . . . . . . . . . 11 table 3. typical notebook application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2 table 4. test conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 table 5. performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 table 6. general specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 table 7. power-down states . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 table 8. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 table 9. thermal resistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 table 10. pin descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 table 11. microphone timing parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 table 12. hd audio widgets (1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 table 13. root and function node parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 table 14. subsystem id . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 table 15. default configuration bytes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
tables ad1989a data sheet 10 conexant dsh-202088b conexant proprietary and confidential 1/4/10
dsh-202088b conexant 11 1/4/10 1 high definition audio codec this data sheet provides a general overview of the ad1989a codec?s architecture and functionality. additional information on the ad1989a is available in the ad1989a 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 3 when selecting ports for particular functions. table 1. typical desktop applications with discreet jacks (default configuration) port function port a front panel headphone port b front panel microphone port c rear line-in port d rear line-out port e rear microphone port f rear surround (5.1) port g rear c/lfe table 2. typical desktop retasking to support shared input/5.1 jacks port function port a front panel headphone port b front panel microphone port c rear line-in/surround out port d rear line-out port e rear microphone/c/lfe
12 conexant dsh-202088b 1/4/10 high definition audio codec ad1989a data sheet table 3. typical notebook application port function port a headphone jack port b microphone jack port c internal analog microphone (optional) port d dock line-out/headphone port e dock line-in port f internal speakers digital microphone internal digital microphone
dsh-202088b conexant 13 1/4/10 ad1989a data sheet high definition audio codec 1.2 specifications table 4. test conditions parameter test condition temperature digital supply analog supply mic_bias_in (via low-pass filter) sample rate f s 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 table 5. 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 f s a-weighted) signal-to-noise ratio ?86 101 101 db db db headphone drive (32 loads?dac to pin) total harmonic distortion (thd + n) dynamic range (?60 db in ref to f s a-weighted) signal-to-noise ratio ?84 101 101 db db db input ports (mic boost = 0 db) total harmonic distortion (thd + n) dynamic range (?60 db in ref to f s a-weighted) signal-to-noise ratio ?80 92 92 db db db
14 conexant dsh-202088b 1/4/10 high definition audio codec ad1989a data sheet table 6. general specifications (1 of 4) parameter min typ max unit digital decimation and interpolation filters?f s = 8 khz to 96 khz (1) pass band 0 0.4 f s hz pass-band ripple 0.005 db stop band 0.6 f s hz stop-band rejection ?110 db group delay 20 1/f s group delay variation over pass band 0 s analog-to-digital converters resolution 24 bits gain error (full-scale span relative to nominal input voltage) (2) 10 % interchannel gain mismatch (difference of gain errors) 0.2 0.5 db adc offset error (1) 5mv adc crosstalk (1) line inputs (input l, ground r, read r; input r, ground l, read l) ?94 db line inputs to other ?100 ?80 db 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, measure r_out; input r, zero l, measure l_out) (1) ?104 db dac volumes step size 1.5 db output gain/attenuation range ?58.5 0 db mute attenuation of 0 db fundamental (1) ?80 db adc volumes step size 1.5 db pga gain/attenuation range ?58.5 +22.5 db mute attenuation of 0 db fundamental (1) ?80 db
dsh-202088b conexant 15 1/4/10 ad1989a data sheet high definition audio codec analog mixer signal-to-noise reduction (snr) input to output 95 db step size: all mixer inputs 1.5 db input gain/attenuation range: all mixer inputs ?34.5 +12.0 db analog line level outputs full-scale output voltage: line-out drive enabled 1.0 vrms (3) ports a, d, e, f, and mono out 2.83 v p-p output impedance (1) 190 external load impedance (1) 10 k output capacitance (1) 15 pf external load capacitance (1) 1000 pf analog hp drive outputs full-scale output voltage: line-out drive enabled 1.0 vrms (3) output impedance (1) 0.5 external load impedance (1) 32 output capacitance (1) 15 pf external load capacitance (1) 1000 pf analog inputs input voltages?ports a, b, c, or e mic boost = 0 db 1 2.83 vrms (3) v p-p input voltages?microphone boost amplifier, ports b, c, or e mic boost = +10 db 0.316 0.894 vrms (3) v p-p mic boost = +20 db 0.1 0.283 vrms (3) v p-p mic boost = +30 db 0.032 0.089 vrms (3) v p-p input impedance pcbeep ports a, b, c, e (mic boost = 0 db) 23 150 k k input capacitance (1) 57.5pf table 6. general specifications (2 of 4) parameter min typ max unit
16 conexant dsh-202088b 1/4/10 high definition audio codec ad1989a data sheet microphone bias mic_bias-b, mic_bias-c mic_bias_in (pin 33) = +5 v or +3.3 v v ref setting = high-z high-z v ref setting = 0 v 0 v dc v ref setting = 50% 1.65 v dc mic_bias_in (pin 33) = +5 v v ref setting = 80% 3.7 v dc v ref setting = 100% 3.9 v dc mic_bias_in (pin 33) = +3.3 v v ref setting = 80% 2.86 v dc v ref setting = 100% 3.0 v dc mic_bias-e (when enabled as bias) v ref setting = high-z high-z v ref setting = 0 v 0 v dc v ref setting = 50% 1.65 v dc v ref setting = 80% 2.86 v dc v ref setting = 100% 3.0 v dc output drive current v ref setting = 50%, 80%, or 100% 1.6 ma gpio_0, gpio_1, and gpio_2 input signal high (v ih )dv gpio 0.60 dv gpio v input signal low (v il )0dv gpio 0.24 v output signal high (v oh ) i out = ?500 adv gpio 0.72 dv gpio v output signal low (v ol )i out = +1500 a0 dv gpio 0.10 v input leakage current (signal high) (i ih ) ?150 na input leakage current (signal low) (i il ) ?50 a dm_clock output signal high (v oh )i out = ?500 adv gpio 0.72 dv gpio v output signal low (v ol )i out = +1500 a0 dv gpio 0.10 v table 6. general specifications (3 of 4) parameter min typ max unit
dsh-202088b conexant 17 1/4/10 ad1989a data sheet high definition audio codec dm_data input signal high (v ih )dv gpio 0.60 dv gpio v input signal low (v il )0dv gpio 0.24 v input leakage current (signal high) (i ih ) ?150 na input leakage current (signal low) (i il ) ?50 na s/pdif-out_1, s/pdif-out_2 output signal high (v oh ) i out = ?500 adv gpio 0.72 dv gpio v output signal low (v ol )i out = +1500 a0 dv gpio 0.10 v s/pdif_in input signal high (v ih )dv gpio 0.60 dv gpio v input signal low (v il )0dv gpio 0.24 v input leakage current (signal high) (i ih ) 150 na input leakage current (signal low) (i il ) ?50 a power supply analog (av dd ) 3.3 v 5% power supply range power dissipation supply current 3.13 3.30 76 23 3.46 v mw ma digital (dv dd ) 3.3 v 10% power supply range power dissipation supply current 2.97 3.30 142 43 3.63 v mw ma digital i/o (dv io ) 3.3 v 10% power supply range power dissipation supply current 2.97 3.30 0.66 0.20 3.63 v mw ma digital i/o (dv io ) 1.5 v 5.5% power supply range power dissipation supply current 1.42 1.50 0.03 0.20 1.58 v mw ma digital gpio (dv gpio ) 3.3 v 10% power supply range power dissipation supply current 2.97 3.30 3.63 1.10 3.63 v mw ma power supply rejection (reference to f s 100 mv p-p signal @ 1 khz) (1) 80 db footnotes: (1) guaranteed but not tested. (2) measurements reflect main adc. (3) rms values assume sine wave input. table 6. general specifications (4 of 4) parameter min typ max unit
18 conexant dsh-202088b 1/4/10 high definition audio codec ad1989a data sheet 1.3 hd audio link specification hd audio signals comply with the high definition audio specifications. please refer to these specifications at: http://www.intel.com/standards/hdaudio / 1.4 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 7. power-down states parameter idv dd typ iav dd typ unit function node in d0, all nodes active 73 49 ma function node in d3 24 1 ma codec in reset 33ma 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) (2) 6 6 0 0 5 3 2 0.1 ma ma ma ma footnotes: (1) powering down the mic_bias powers down all port mic_bias pins. this disables all microphone bias circuits, setting them to the high-z state. (2) test conditions: 30 pf load, 2.0 mhz frequency, 3.3 v av dd . table 8. absolute maximum ratings parameter rating digital (dv dd ) ?0.30 v to +3.65 v digital i/o (dv io ) ?0.30 v to +3.65 v digital gpio (dv gpio ) ?0.30 v to +3.65 v analog (av dd ) ?0.30 v to +3.65 v input current (except supply pins) 10.0 ma analog input voltage (signal pins) ?0.30 v to av dd + 0.3 v digital input voltage (signal pins) ?0.30 v to dv io + 0.3 v ambient temperature (operating) 0c to +70c storage temperature ?65c to +150c caution electrostatic discharge device (esd) 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.
dsh-202088b conexant 19 1/4/10 ad1989a data sheet high definition audio codec 1.5 environmental conditions ambient temperature rating t amb = t case ? (pd ca ) t case = 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. table 9. thermal resistance package ja jc ca unit qfn 47 15 32 c/w
20 conexant dsh-202088b 1/4/10 high definition audio codec ad1989a data sheet 1.6 pin configuration and function descriptions figure 1. ad1989a pinout 1 2 3 4 5 6 7 8 9 10 11 12 34 33 36 35 25 26 27 28 29 30 31 32 AD1989AJCPZ top view (not to scale) sdata_out bit_clk sdata_in sync pcbeep port-d_r port-d_l sense_b/src_a mic_bias_in mic_bias-b/eapd-b mic_bias-c/eapd-c mic_bias-e/eapd-e av dd av ss vref_flt mic_bias-d/eapd-d sense_c dv core dv dd dv ss dv gpio s/pdif-out_2/gpio_0 13 14 15 16 17 18 19 20 21 22 23 24 sense_a/src_b port-e_l port-e_r port-f_r port-f_l cd_l/line_in_l cd_gnd cd_r/line_in_r port-b_l port-b_r port-c_r port-c_l port-g_l port-g_r port-a_l port-a_r av dd av ss dm_clk dm_data s/pdif-out_1/gpio_2 s/pdif_in/gpio_1 mic_bias_a/eapd-a mono_out 48 47 46 45 44 43 42 41 40 39 38 37 reset dv io
dsh-202088b conexant 21 1/4/10 ad1989a data sheet high definition audio codec table 10. pin descriptions (1 of 3) mnemonic pin no. function description digital interface sdata_out 5 i link serial data output. 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. ad1989a output stream clocked only on one edge of bit_clk. sync 10 i link frame sync. reset 11 i link reset. master hardware reset digital i/o s/pdif-out_2/gpio_0 2 i/o s/pdif out or gpio. su pports s/pdif output as primary function. s/pdif_in/gpio_1 47 i/o s/pdif input/general-purpose inpu t/output pin. supports s/pdif input as primary function. spdif_out_1/gpio_2 48 i/o s/pdif_out or gpio. supports s/pdif output as primary function. dm_data 45 dmic digital microphone data input. support for two digital microphones. dm_clk 46 dmic_clk digital microphone clock output. jack sense sense_a/src_b 13 i/o jack sense a-d input/sense b drive. sense_b/src_a 34 1/o jack sense e-h input/sense a drive. sense_c 30 i jack sense cd/line inputs. 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 lo auxiliary input/surround rear (5.1) left channel. port-f_r 17 lo auxiliary input/surround rear (5.1) right channel. cd_l/line_in_l 18 ll 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/line_in_r 20 li cd audio right channel. port-b_l 21 li, mic, hp, lo front panel stereo mic/line-in.
22 conexant dsh-202088b 1/4/10 high definition audio codec ad1989a data sheet analog i/o (continued) 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. 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/eapd-b mic_bias-c/eapd-c mic_bias-e/eapd-e mic_bias-d/eapd-d mic_bias-a/eapd-a 28 29 31 32 37 o o 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). switchable microphone bias. for use with port d (pins 35, 36) switchable microphone bias. for use with port a (pins 39, 41) all mic_bias pins are capable of: high-z, 0 v, 1.65 v, 3.78 v, and 3.95 v (with 5.0 v on pin 33) high-z, 0 v, 1.65 v, 2.86 v, and 3.00 v (with 3.3 v on pin 33). vref_filt 27 o voltage reference filter. dv core 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 dv ss (pin 4). table 10. pin descriptions (2 of 3) mnemonic pin no. function description
dsh-202088b conexant 23 1/4/10 ad1989a data sheet high definition audio codec power and ground dv gpio 3.3 v 10% 3 i gpio and s/pdif out (1 and 2) signal level (independent of dv io ). connect to 3.3 v 10%. dv io 3.3 v 10% or dv io 1.5 v 5.5% 4 i connect to the i/o voltage used for the hd audio controller signals. dv ss 7 i digital supply return (ground). dv dd 3.3 v 10% 9 i digital supply voltage 3.3 v. this is regulated down to pin 1 to supply the internal digital core. av dd 3.3 v 5% 25, 38 i caution: do not apply 5.0 v to these pins! analog supply voltage 3.3 v only. note: av dd supplies should be well regulated and filtered as supply noise degrades audio performance. mic_bias_in 33 i source for microphone bias circuitry. connect this pin to 5.0 v via a low-pass filter. when connected this way the ad1989a is capable of providing +3.95 v as a mic bias to all of the mic_bias pins. if 5 v is not available, connect this pin to +3.3 v (av dd ) via a low-pass filter. the ad1989a produces a mic bias voltage relative to the av dd supply (typically 3.0 v @ av dd = 3.3 v). av ss 26, 42 i analog supply return (ground). av ss should be connected to dv ss using a conductive trace under, or close to, the ad1989a. 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). table 10. pin descriptions (3 of 3) mnemonic pin no. function description
24 conexant dsh-202088b 1/4/10 high definition audio codec ad1989a data sheet 1.7 digital microphone interface timing specifications the digital microphone interface can suppor t 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 is 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 figure 2. uniplex microphone timing figure 3. multiplex microphone timing table 11. microphone timing parameters parameter minimum typical maximum unit timing requirements t 0 dm_clk (1.5 mhz) period duty cycle 667 50/50 ns % t 0 dm_clk (2.0 mhz) period duty cycle 500 50/50 ns % t 0 dm_clk (3.0 mhz) period duty cycle 333 50/50 ns % t 1 dm_clk rise time 5 ns t 2 dm_clk fall time 5 ns t 3 data setup to dm_clk edge 100 ns t 4 data hold from dm_clk edge 5 ns dm_clk dm_data t 0 t 1 t 2 data valid t 3 t 4 dm_clk dm_data t 0 t 3 t 4 left data valid right data valid left data valid t 3 t 4 t 1 t 2
dsh-202088b conexant 25 1/4/10 ad1989a data sheet high definition audio codec 1.8 hd audio widgets table 12. hd audio widgets (1) (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_1 dac 0 audio output s/pdif-1 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 06 dac_3 0 audio output stereo surround-back (5.1) channel digital/audio converters 07 s/pdif adc 1 audio input s/pdif digital stream input interface 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 0a dac_4 1 audio output stereo surround side (7.1) channel digital/audio converters 0b s/pdif_2 dac 0 audio output s/pdif-2 output (typically used for hdmi) 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 0e adc selector 2 3 audio selector selects and amplifies/attenuates the input to adc2 0f adc_2 3 audio input stereo record channel 2 audio/digital converters 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 output/headphone output 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 line-in jack (rear or front) 16 port f (surr back) 4 pin complex r ear panel surround-rear (5.1) jack 17 port e (rear mic) 4 pin complex rear panel mic jack 18 cd in/line in 4 pin complex analog cd input or line 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_1 4 pin complex s/pdif_1 output pin 1c s/pdif in 4 pin complex s/pdif input pin 1d s/pdif out_2 4 audio mixer s/pdif_2 output pin
26 conexant dsh-202088b 1/4/10 high definition audio codec ad1989a data sheet 1e mono out mixer 2 audio mixer selects which source drives the mono out signal 1f digital microphone 4 pin complex digital microphone input pin 20 analog mixer 2 audio mixer mixes individually gainable analog inputs 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 v ref power down f vendor defined powers down the internal and external v ref circuitry 24 port g (c/lfe) 4 pin complex rear panel c/lfe jack 26 port e mixer 2 audio mixer mixes dac2 and mixer output amps to drive port e 27 port g mixer 2 audio mixer mixes dac2 and mixer output amps to drive port g 29 port d mixer 2 audio mixer mixes dac1 and mixer output amps to drive port d 2a port f mixer 2 audio mixer mixes dac3 and mixer output amps to drive port f 2b port b mixer 2 audio mixer mixes the port b selected dac and mixer output amps to drive port b 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_filt and all mic_bias pins 30 port b out selector 3 audio selector selects the port b dac (0, 1) 31 port c out selector 3 audio selector selects the port c dac (0, 3) 32 port e out selector 3 audio selector selects the port e dac (2, 4) 33 port c in selector 3 audio selector selects from the port c and g inputs to drive the mixer input 34 port e in selector 3 audio selector selects from the port e and g inputs to drive the mixer input 36 mono out selector 3 audio selector selects the mono out dac (0, 1, 3) 37 port a selector 3 audio selector selects the port a dac (0, 1, 3) 38 port a boost 3 audio selector microphone boost amp for port a 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 3d port d boost 3 audio selector microphone boost amp for port d footnotes: (1) all node ids (nids) are sequential in the codec. any nids missing from this table are vendor defined. table 12. hd audio widgets (1) (2 of 2) node id name type id type description
dsh-202088b conexant 27 1/4/10 ad1989a data sheet high definition audio codec 1.9 hd audio parameters table 13. root and function node parameters node id name vendor id 00 01 revision id 02 (1) 03 sub node count 04 func. group type 05 audio f.g. caps 08 gpio caps 11 00 root 11d4989a 0010 0300 0001 0001 01 function 0002 003c 0000 0001 0001 0c0c 4000 0003 footnotes: (1) subject to change with silicon stepping. table 14. subsystem id node id name value 31:16 ssid 15:8 sku 7:0 asm id 01 function bfd80000 bfd8 00 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.
28 conexant dsh-202088b 1/4/10 high definition audio codec ad1989a data sheet 1.10 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 node id name value 31:30 29:28 27:24 23:20 19:16 15:12 8 7:4 3:0 connectivity location def device connector type color jd def assn sequence chassis position 11 port a (headphone) 0x0221 4030 jack external front hp out 1/8? jack green 0 3 0 12 port d (front l/r) 0x0101 4010 jack external rear line out 1/8? jack green 0 1 0 13 mono out 0x9913 01f0 fixed internal special 3 speaker atapi unknown 1 f 0 14 port b (front mic) 0x02a1 9040 jack ex ternal front mic in 1/8? jack pink 0 4 0 15 port c (line in) 0x0181 3021 jack exte rnal rear line in 1/8? jack blue 0 2 1 16 port f (surr back) 0x0101 1012 jack exte rnal rear line out 1/8? jack black 0 1 2 17 port e (rear mic) 0x01a1 9020 jack ex ternal rear mic in 1/8? jack pink 0 2 0 18 cd in/ line in 0x9933 012e fixed internal special 3 cd atapi unknown 1 2 e 1a analog pcbeep 0x99f3 01f0 fixed inte rnal special 3 other atapi unknown 1 f 0 1b s/pdif_1 out 0x0145 11f0 jack external rear s/pdif out optical black 1 f 0 1c s/pdif in 0x01c5 11f0 jack external rear s/pdif in optical black 1 f 0 1d s/pdif_2 out 0x9856 01f0 fixed internal special 2 digital out other digital unknown 1 f 0 1f digital mic 0x97a6 01f0 fixed internal special 1 mic in other digital unknown 1 f 0 24 port g (c/lfe) 0x0101 6011 jack external rear line out 1/8? jack orange 0 1 1
dsh-202088b conexant 29 1/4/10 ad1989a data sheet high definition audio codec 1.11 package dimensions dimensions are shown in millimeters. figure 4. 48-lead qfn package pin 1 indicator top view 6.75 bsc sq 7.00 bsc sq 1 48 12 13 37 36 24 25 5.25 5.10 sq 4.95 0.50 0.40 0.30 0.30 0.23 0.18 0.50 bsc 12 max 0.20 ref 0.80 max 0.65 typ 1.00 0.85 0.80 5.50 ref 0.05 max 0.02 nom 0.60 max 0.60 max pin 1 indicator coplanarity 0.08 seating plane 0.25 min exposed pad (bottom view) compliant to jedec standards mo-220-vkkd-2 48-lead lead frame chip scale package [lfcsp_vq] 7 x 7 mm body, very thin quad (cp-48-1) dimensions shown in millimeters 48-lead qfn package 7 x 7 mm dimensions shown in millimeters
30 conexant dsh-202088b 1/4/10 high definition audio codec ad1989a data sheet
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