esmt/emp AD82586B elite semiconductor memory technology inc./elite micropower inc . publication date: sep. 2012 revision: 0.1 1/62 2x20w stereo / 1x 40w mono digital audio amplifier with 20 bands eq functions and pwm out features ? 16/18/20/24-bits input with i 2 s, left-alignment and right-alignment data format ? psnr & dr(a-weighting) loudspeaker: 97db (psnr), 107db (dr) @24v ? multiple sampling frequencies (fs) 32khz / 44.1khz / 48khz and 64khz / 88.2khz / 96khz and 128khz / 176.4khz / 192khz ? system clock = 64x, 128x, 192x, 256x, 384x, 512x, 576x, 768x, 1024x fs 64x~1024x fs for 32khz / 44.1khz / 48khz 64x~512x fs for 64khz / 88.2khz / 96khz 64x~256x fs for 128khz / 176.4khz / 192khz ? supply voltage 3.3v for digital circuit 10v~26v for loudspeaker driver ? loudspeaker output power for at 24v 10w x 2ch into 8 ? @0.17% thd+n for stereo 20w x 2ch into 8 ? @0.27% thd+n for stereo 20w x 1ch into 4 ? @0.14% thd+n for mono 40w x 1ch into 4 ? @0.21% thd+n for mono ? sound processing including 20 bands parametric speaker eq volume control (+24db~-103db, 0.125db/step), dynamic range control (drc) dual band dynamic range control power clipping 3d surround sound channel mixing noise gate with hysteresis window bass/treble tone control bass management crossover filter dc-blocking high-pass filter ? anti-pop design ? short circuit and over-temperature protection ? i 2 c control interface with selectable device address ? support hardware and software reset ? internal pll ? lv under-voltage shutdown and hv under-voltage detection ? power saving mode applications ? tv audio ? boom-box, cd and dvd receiver, docking system ? powered speaker ? wireless audio description AD82586B is a digital audio amplifier capable of driving a pair of 8 ? , 20w or a single 4 ? , 40w operating at 24v supply without external heat-sink or fan requirement. higher output wattage can be delivered with cooling method. AD82586B can provide advanced audio processing capabilities, such as volume control, 20 bands speaker eq, audio mixing, 3d surround and dynamic range control (drc). these functions are fully programmable via a simple i 2 c control interface. robust protection circuits are provided to protect AD82586B from damage due to accidental erroneous operating condition. AD82586B is more tolerant to noise and pvt (process, voltage, and temperature) variation than the analog class-ab or class-d audio amplifier counterpart implemented by analog circuit design. AD82586B is pop free during instantaneous power switch because of its built-in, robust anti-pop circuit. the output stage is flexibly configurable for stereo or mono applications. in addition, AD82586B provides a sub-woofer pwm output port for the increasingly popular 2.1 channel applications. the programmable audio bass content of this subwoofer pwm output port can drive an external, low cost digital amplifier power stage, e.g., esmt?s ad92580. furthermore, use three pieces of AD82586B can realize 5.1 channels for home theater applications.
esmt/emp AD82586B elite semiconductor memory technology inc./elite micropower inc . publication date: sep. 2012 revision: 0.1 2/62 pin assignment sa0 error pd la bclk reset 48 47 46 45 44 43 42 41 40 39 38 37 n.c. 24 23 22 21 20 19 18 17 16 15 14 13 sa1 suba subb scl lrcin cfg1 cfg0 gndl n.c. lb vddlb vddrb rb ra n.c. n.c. gndr pin description pin name type description characteristics 1 vddla p left channel supply a 2 n.c. 3 n.c. 4 n.c. 5 n.c. 6 pll i pll enable, low active schmitt trigger ttl input buffer 7 mclk i master clock input schmitt trigger ttl input buffer 8 clk_out o clock output from pll ttl output buffer 9 dgnd p digital ground 10 dvdd p digital power 11 def i default volume setting (1:un-mute ; 0:mute) schmitt trigger ttl input buffer 12 sdata i serial audio data input schmitt trigger ttl input buffer 13 cfg0 i stereo/mono/2.1ch configuration pin schmitt trigger ttl input buffer 14 cfg1 i stereo/mono/2.1ch configuration pin schmitt trigger ttl input buffer 15 lrcin i left/right clock input (fs) schmitt trigger ttl input buffer 16 bclk i bit clock input (64fs) schmitt trigger ttl input buffer 17 pd i power down, low active schmitt trigger ttl input buffer
esmt/emp AD82586B elite semiconductor memory technology inc./elite micropower inc . publication date: sep. 2012 revision: 0.1 3/62 18 error o error status, low active open-drain output 19 reset i reset, low active schmitt trigger ttl input buffer 20 sa0 i i 2 c select address 0 schmitt trigger ttl input buffer 21 sa1 i i 2 c select address 1 schmitt trigger ttl input buffer 22 suba o sub-woofer pwm output a 23 subb o sub-woofer pwm output a 24 scl i i 2 c serial clock input schmitt trigger ttl input buffer 25 sda i/o i 2 c bi-directional serial data schmitt trigger ttl input buffer 26 dgnd p digital ground 27 dvdd p digital power 28 lrex i left/right channel exchange schmitt trigger ttl input buffer 29 n.c. 30 n.c. 31 n.c. 32 n.c. 33 n.c. 34 n.c. 35 n.c 36 vddra p right channel supply a 37 ra o right channel output a 38 n.c. 39 gndr p right channel ground 40 n.c. 41 rb o right channel output b 42 vddrb p right channel supply b 43 vddlb p left channel supply b 44 lb o left channel output b 45 n.c. 46 gndl p left channel ground 47 n.c. 48 la o left channel output a
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