CX20632 5.1 hd audio codec with 2w class-d, dual capless hp, jack retasking, and spdif in and out features ? 3 pairs of independent dacs and 3 pairs of independent adcs ? sampling rates include 16-bit, 44.1 khz to 24-bit, 192 khz for dacs, and from 16-bit, 44.1 khz to 24-bit; 96 khz for adcs. ? integrated mono 2 wrms class-d amplifier ? two capless headphone ports eliminate bom ? multiple line outputs for 5.1 audio ? hardware digita l crossover for subwoofer ? multiple input/output retaskable ports ? stereo digital microphone interface ? integrated boost for all microphones ? independent spdif input and output ? integrated regulators maximize performance ? microphone security control ? integrated headphone limiter (gs mark) ? d-flex power management minimizes power consumption ? wake on pc beep ? popshield eliminates pops and clicks ? fidelity exceeds microsoft whck requirements ? jack sense detects up to 8 jacks ? digital mixer ? compliant with all intel high definition audio specifications ? selectable 1.5v/3.3 v link signaling ? available in 48-qfn package software ? smartaudio gui ? voice processing algorithms include end-to-end noise reduction, multi- band aec, and beam forming ? 10 band speaker eq and drc ? 3d expander ? third-party software support includes andrea, creative labs, dolby, fortemedia, waves maxxaudio, srs, and dts ? supports 32-bit/64-bit windows/linux applications ? desktop pcs ? multi-channel notebooks ? all in one pcs ? embedded audio ? sound bars part number CX20632 description 5.1 hd audio codec overview conexant's CX20632 is a low-power, 102 db snr hd audio codec with integrated mono 2-wrms filterless class d speaker amplif ier using spread spectrum dispersion technology to prevent emi. three independent pairs of dacs and three independent pairs of adcs support multi-streaming and real time communications applications and enable 5.1 multi-channel audio. the audio fidelity of the device exceeds microsoft premium logo requirements. two procoustic capless headphone drivers deliver 31 mw per channel into 32 loads and eliminate external dc blocking capacitors. built-in support for 4-conductor-type headset combo jacks saves space and system bom cost. multiple line outputs are available for driving external powered speakers for 5.1 audio on 3 or 5 jacks or higher powered integrated speaker amplifiers. multiple retaskable ports are available, including microphone/line in, microphone/line in/line out, and line in/ line out retasking. all output ports feature popshield technology that eliminates pops and clicks. the codec features a stereo digital microphone interface that includes a hardware dc- level filter to remove dc offset and provides the clock output. it also includes one spdif output and one spdif input both supporting sample rates up to 192 khz, 16-24-bit resolution. multiple gpio's are provided, including speaker mute and eapd functions. hardware volume control support push button and rotary volume knobs. integrated 5 v to 3.3 v and 3.3 v to 1.8 v low dropout (ldo) regulators guarantee high performance analog audio and clean power to inte rnal digital blocks. conexant's d-flex power management allows the system to exceed the power savings specified in the intel ecr 15b. the internal wake-on-beep logic resumes the analog paths for the pc beep to the output ports. analog and digital power rails can be dropped in s3/s4/s5 to maximize power savings and eup compliance. block diagram
parameter minimum typical maximum units line outputs full scale output voltage 1.0 vrms dynamic range (measured with -60 dbfs signal present) 100 dbfs total harmonic distortion + noise (thd + n) -85 db channel crosstalk -84 dbfs analog frequency response (+/- 3 db at 20 hz, +/- 1 db at 20000 hz) 20 20000 hz headphone output full scale output voltage 1.2 vrms dynamic range (measured with -60 dbfs signal present) 99 dbfs total harmonic distortion + noise (thd + n) -87 db channel crosstalk -75 dbfs analog frequency response (+/- 3 db at 20 hz, +/- 1 db at 20000 hz) 20 20000 hz class-d speaker amplifier outputs full scale output voltage (into 4 ) 3.96 2.83 4.0 2.90 4.2 3 vp vrms dynamic range (measured with -60 dbfs signal present) 94 dbfs total harmonic distortion + noise (thd + n, measured at -3 dbfs) -71 dbfs analog frequency response (+/- 3 db at 20 hz, +/- 1 db at 20000 hz) 20 20000 hz efficiency (measured at 1 w/ch) 85 % microphone/line inputs full scale input voltage (with 20 db boost) full scale input voltage (with boost off) 0.1 1.0 vrms dynamic range (measured with -60 dbfs signal present) 91 dbfs total harmonic distortion + noise (thd + n) -87 dbfs channel crosstalk (measured at 1 khz, 0 db gain) -84 dbfs analog frequency response (+/- 3 db at 200 hz, +/- 1 db at 20000 hz) 200 20000 hz input resistance 0 db 10-40 db 15.8 5.0 k input capacitance 5 pf model/order/part numbers supported functions operating temperature device order number audio codec part number revision audio codec package type integrated mono class-d amplifier number of dacs/adcs digital mic CX20632-11z CX20632-11z -11z 48-qfn y 6/6 y 0 to 70 o c ? 2012 conexant systems, inc. all rights reserved. conexant and the conexant logo are registered trademarks of conexant systems, inc. all other trademarks are owned by their respective owners. although conexant strives for accuracy in all its publications, this material may contain errors or omissions and is subject to change without notice. this material is provided as is and without any express or implied warranties, including merchant ability, fitness for a paparticular purpose and non-infringement. conexant shall not be liable for any special, indirect, incidental or consequential damages as a result of its use. www.conexant.com general information: u.s. and canada: (888) 855-4562 international: 1+ (949) 483-3000 headquarters 4000 macarthur blvd. newport beach, ca 92660 doc# pbr-203098 analog ? performance ? characteristics ordering ? information
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