esmt AD62556 elite semiconductor memory technology inc. publication date : oct. 2013 revision : 0.2 1/34 usb audio controller with headphone driver & with microphone/line-in interface features z compliant with usb specification v1.1, and usb 2.0 full speed z compliant with usb 3.0 super speed operation z embedded stereo adc with microphone boost z embedded power-on-reset circuit z embedded headphone driver z support i2s input (master and slave mode) and i2s output interface (master mode) z support sampling frequency 44.1/48khz for playback and recording z pin to set recording source from internal adc or external adc z pin to set headphone mode or i2s output mode z support microphone and line-in function switching z support volume/mute control with external button z led indicator function for playback, mute and recording mute z support 3d surround sound z support microphone bias z support digital microphone interface for recording z power clipping function for speaker protection z external eeprom interf ace for vendor specific and hardware configuration via i2c z i2s input port allows AD62556 to receive esmt?s high performance adc(i.e. ad12250) z i2s output port allows AD62556 to control esmt?s high performance audio devices (i.e. ad82586/ad82581) z built-in 5v to 3.3v regulator for internal device operation z anti-pop design z over-temperature protection z under-voltage shutdown z short-circuit detection z single 12 mhz crystal input z 3.3v operation i/o z supports windows me/200 0/xp/vista/7/8, linux and macos z integration circuit quality meet win7 and win8 hardware logo requirement description AD62556 is a highly integrated usb single chip for headphone. many useful features are programmable with pins or i2c control. the device also has an i 2 s input port and i 2 s output port. the i 2 s input port allows other external audio sources to use the class d amplifier to share the headphone. the i 2 s output port allows other high performance audio device (i.e. ad82586/ad82581b). functional block diagram
esmt AD62556 elite semiconductor memory technology inc. publication date : oct. 2013 revision : 0.2 2/34 order informaton product id package packing / mpq comments AD62556-lg48nay e-lqfp-48l (7x7 mm) 2.5k units / small box (250 units / tray, 10 trays / small box green available package package type device no. ja ( /w) jt ( /w) jt ( /w) exposed thermal pad e-lqfp-48l AD62556 27.4 1.33 6.0 yes (note1) note 1.1: the thermal pad is located at the botto m of the package. to optimize thermal performance, soldering the thermal pad to the pcb?s ground plane is suggested. note 1.2: ja is simulated on a room temperature (t a =25 ), natural convection env ironment test board, which is constructed with a thermally efficient, 4-layers pcb (2s2p). the simulation is tested using the jedec51-5 ther mal measurement standard. note 1.3: jt represents the heat resistance for the heat flow between the chip and the package?s top surface. it is extracted from the simulation data to obtain ja . note 1.3: jt represents the heat resistance for the heat flow between the chip and the package?s top surface. it is simulated a cold plate on the top of the package. marking information AD62556 line 1 : logo line 2 : product no. line 3 : tracking code line 4 : date code esmt AD62556 tracking code date code
esmt AD62556 elite semiconductor memory technology inc. publication date : oct. 2013 revision : 0.2 3/34 pin assignment 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 xi xo hpr hpvcm agnd2 avdd2 hpl hp_spkb snden mutebr mutebp volup voldn dmic_data dmic_clk sel0 sel1 sel2 scl sda micbr ainr vref avdd agnd adcvcm ainl micbl led0 led1 gnd rego vdd5 usbdp usbdm mclko sdatao lrcino bclko pdo mclki sdatai bclki lrcini usb /linein pgnd pvdd pgnd pin description pin name type description characteristics 1 xi i crystal input with internal 1mohm resistor connected to the pin of xo 2 xo o crystal output 3 pgnd p ground 4 pvdd p supply 5v 5 pgnd p ground 6 hpr o headphone right channel output 7 hpvcm o headphone common-mode voltage decoupling pin 8 agnd2 p headphone ground 9 avdd2 p headphone 5v supply 10 hpl o headphone left channel output 11 hp_spkb i 0:i2s output mode 1:headphoone mode 3.3v schmitt trigger ttl input buffer 12 snden i surround enable with internal 100kohm pull-up resistor 13 mutebr i recording mute with internal 100kohm pull-up resistor 14 mutebp i power-down and mute of headphone with internal 100kohm pull-up resistor
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