[AKD4201-C] 2008/11 - 1 - general description AKD4201-C is an evaluation board for the stereo headphone / lineout amplifier ak4201 that has a built-in charge-pump circuit and eliminates the need for lar ge dc-blocking capacitors. it applies to single-end analog input, headphone / lineout output, and it is available to evaluate the ak4201 easily. ? ordering guide AKD4201-C --- ak4201 evaluation board function ? stereo mini jack for line in ? stereo mini jack for headphone ? rca jack for line out lin ak4201 3.5 mini- jack lout rout 5v 3.3v rin 3.5 mini- jack avdd pvdd gnd vss1 vss2 j2 j3 tm1 tm2 figure 1. AKD4201-C block diagram * circuit diagram and pattern layout are attached at the end of this manual. a k4201 evaluation board rev.0 AKD4201-C
[AKD4201-C] 2008/11 - 2 - board outline chart ? outline chart figure 2. AKD4201-C outline chart ? comment (1) j2 (lin / rin): mimi-jack it is a jack of analog input signals lin / rin. these signals are input to lin pin / rin pin. (2) j3 (lout / rout): mimi-jack it is a jack of analog output signals lout / rout. these signals are output from lout pin / rout pin. (3) tm1 (5v / 3.3v): terminal it is a power supply terminal of 5v / 3.3v. it should be connected to power supply 5v/3.3v. for further details, refer to p3. ?set up the power supply lines?. (4) tm2 (gnd): terminal it is a ground terminal. it should be connected to gnd. for further details, refer to p3. ?set up the power supply lines?. (5) sw1 (pdn): toggle switch it is a power down switch of ak4201. this should be set to h, after all power supply pins are supplied. lout rout vss
[AKD4201-C] 2008/11 - 3 - evaluation board manual ? operation sequence 1) set up the power supply lines. 1-1) the power of avdd and pvdd is supplied from power supply jacks. name of jack color of jack typ. voltage using note default setting 5v / 3.3v red +5v / 3.3v avdd of ak4201 pvdd of ak4201 +5v/+3.3v are supplied from jack connect to +5v / +3.3v gnd black 0v ground should be connected 0v table 1. set up of power supply lines (the power of avdd and pvdd is supplied from power supply jacks.) note 1. each supply line should be distributed from the power supply unit. avdd and pvdd must be connected to the same power supply. 3) the function of the toggle sw. (see the followings.) 4) power on. sw1 (ak4201-pdn) should be kept ?l?, until all power supply pins are supplied. sw1 (ak4201-pdn) should be set to ?h?, after all power supply pins are supplied. ? the function of the toggle sw upper is ?h?, and lower is ?l?. [sw1] (ak4201-pdn): power down reset of ak4201. keep ?h? during normal operation. sw1 (ak4201-pdn) should be kept ?l?, until all power supply pins are supplied. sw1 (ak4201-pdn) should be set to ?h?, after all power supply pins are supplied.
[AKD4201-C] 2008/11 - 4 - revision history date (yy/mm/dd) manual revision board revision reason page contents 08/11/12 km097400 0 first edition important notice z these products and their specifications are subject to change without notice. when you consider any use or application of these product s, please make inquiries the sales office of asahi kasei emd corporation (akemd) or authorized distributors as to current status of the products. z akemd assumes no liability for infringement of any patent, intellectual property, or other rights in the application or use of any information contained herein. z any export of these products, or devices or systems contai ning them, may require an export license or other official approval under the law and regulations of the country of ex port pertaining to customs and tariffs, currency exchange, or strategic materials. z akemd products are neither intended nor au thorized for use as critical components note1) in any safety, life support, or other hazard related device or system note2) , and akemd assumes no responsibility for such use, except for the use approved with the express written consent by representative director of akemd. as used here: note1) a critical component is one whose failure to func tion or perform may reasonably be expected to result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and which must therefore meet very high standards of performance and reliability. note2) a hazard related device or system is one designed or intended for life support or maintenance of safety or for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform may reasonably be expected to result in loss of life or in significant injury or damage to person or property. z it is the responsibility of the buyer or distributor of akem d products, who distributes, disposes of, or otherwise places the product with a third party, to notify such third party in advance of the above content and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability for and hold akemd harmless from any and all claims arising from the use of said product in the absence of such notification.
1 1 2 2 3 3 4 4 5 5 a a b b c c d d e e 5v/3.3v 5v/3.3v ak4201-rin ak4201-lin ak4201-avdd ak4201-pvdd ak4201-pdn ak4201-lout ak4201-rout ak4201-lin ak4201-rout ak4201-lout ak4201-rin vcc ak4201-pdn vcc ak4201-avdd ak4201-pvdd title size document number rev date: sheet of ak4201 0 AKD4201-C a4 11 tuesday, october 14, 2008 title size document number rev date: sheet of ak4201 0 AKD4201-C a4 11 tuesday, october 14, 2008 title size document number rev date: sheet of ak4201 0 AKD4201-C a4 11 tuesday, october 14, 2008 gnd gnd gnd 12pin uson plastic gnd gnd lin / rin lout / rout ak4201-pdn h l gnd gnd gnd gnd 5v/3.3v gnd u1 ak4201 u1 ak4201 lin 1 lout 2 avdd 3 vss1 4 pvdd 5 cn 6 cp 7 pdn 8 vss2 9 pvee 10 rout 11 rin 12 + c4 10u + c4 10u r4 30k r4 30k c100 0.1u c100 0.1u r100 (short) r100 (short) + c2 10u + c2 10u r3 20k r3 20k c3 0.1u c3 0.1u r5 (short) r5 (short) r8 (short) r8 (short) c5 0.1u c5 0.1u tm1 (open) tm1 (open) 1 c8 1u c8 1u j3 m03-663a0 j3 m03-663a0 6 4 3 c7 1u c7 1u c6 1u c6 1u r2 30k r2 30k c1 1u c1 1u sw1 ft1d-2m-z sw1 ft1d-2m-z 2 1 3 r1 20k r1 20k tm2 (open) tm2 (open) 1 + c12 (open) + c12 (open) j2 m03-663a0 j2 m03-663a0 6 4 3 -5-
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