background image

ASAHI KASEI 

 

[AKD4140-B]

 

<KM079203>  

2009/10 

 

- 1 -

 

 

 

 
 
 

 

GENERAL DESCRIPTION 

The AKD4140-B is the evaluation board for the AK4140, BTSC decoder. The AKD4140-B has AKM’s D/A 
as analog output and AKM’s DIT as digital (S/PDIF) output. 

 

„

 Ordering guide 

 

AKD4140-B  ---   Evaluation board for AK4140 

(A cable for connecting with printer port of IBM-AT compatible PC 
 and a control software are packed with this. The control software  
does not operate on Windows NT.) 

 

FUNCTION 

 

†

 Digital interface 

-S/PDIF 

1 channel output (Optical or BNC) 

- Serial audio data I/F 

1 input/output port (10-pin port) 

-Serial control data I/F 

1 input/output port (10-pin port) 

 
 
 
 

 

ROUT 

SIF 

AK4140

Serial Data 

In/Out 

Control 

5V 

GND

LOUT 

TX 

Opt

 

REG 

3.3V 

AK4386

(DAC) 

AK4103A

(DIT) 

Analog Out 

S/PDIF Out

 

Figure 1. AKD4140-B Block Diagram 

*Circuit diagram and PCB layout are attached at the end of this manual. 

 

AK4140 Evaluation Board Rev.2

AKD4140-B

Summary of Contents for AKD4140-B

Page 1: ...and a control software are packed with this The control software does not operate on Windows NT FUNCTION Digital interface S PDIF 1 channel output Optical or BNC Serial audio data I F 1 input output port 10 pin port Serial control data I F 1 input output port 10 pin port ROUT SIF AK4140 Serial Data In Out Control 5V GND LOUT TX Opt REG 3 3V AK4386 DAC AK4103A DIT Analog Out S PDIF Out Figure 1 AKD...

Page 2: ...t to H during normal operation Bring to L once after the power is supplied Table 1 Toggle switch set up LED indication LE1 INT0 Turn on when INT0 pin goes to H LE2 INT1 Turn on when INT1 pin goes to H Table 2 LED indication Jumper set up No Jumper Name Function 1 REG Power supply setup Short Regulator default Open 3 3V Jack 2 XTE Set up of X tal Short GND Open X tal default 3 MCLK Set up of MCLK X...

Page 3: ...et up DIP switch SW4 set up off means L No Switch Name Function Default 1 DIT_DIF0 Set up of AK4103A_DIF0 pin OFF 2 DIT_CKS0 Set up of AK4103A_CKS0 pin ON 3 DIT_CKS1 Set up of AK4103A_CKS1 pin OFF 4 DAC_DIF0 Set up of AK4386_DIF0 pin OFF Table 5 SW4 set up DIT_DIF0 SW4_1 AK4103A SDTI 0 24bit Left justified Default 1 24bit I2 S Table 6 Audio Interface Format of AK4103A DIT_CKS1 SW4_3 DIT_CKS0 SW4_2...

Page 4: ...llel port of IBM AT compatible PC Connect PORT2 uP I F with PC by 10 line flat cable packed with the AKD4140 B Take care of the direction of connector There is a mark at pin 1 The pin layout of PORT2 as shown Figure 2 PORT2 uP I F 6 5 10 1 NC CDTO CDTI CCLK CSN GND GND GND GND GND Red Figure 2 PORT2 pin layout ...

Page 5: ...following Operation flow Keep the following flow 1 Set up the control program according to explanation above 2 Click Port Reset button Explanation of each buttons 1 Port Reset Set up the USB interface board AKDUSBIF A 2 Write default Initialize the register of AK4140 3 All Write Write all registers that is currently displayed 4 Function1 Dialog to write data by keyboard operation 5 Function2 Dialo...

Page 6: ... to AK4140 click OK button If not click Cancel button 3 Function2 Dialog Dialog to evaluate ATT Address Box Input registers address in 2 figures of hexadecimal Start Data Box Input starts data in 2 figures of hexadecimal End Data Box Input end data in 2 figures of hexadecimal Interval Box Data is written to AK4140 by this interval Step Box Data changes by this step Mode Select Box If you check thi...

Page 7: ...ion of file name is akr Operation flow 1 Click Save Button 2 Set the file name and push Save Button The extension of file name is akr 4 2 Open The register setting data saved by Save is written to AK4396 The file type is the same as Save Operation flow 1 Click Open Button 2 Select the file akr and Click Open Button ...

Page 8: ... Interval time Set 1 to the address of the step where the sequence should be paused 3 Click Start button Then this sequence is executed The sequence is paused at the step of Interval 1 Click START button the sequence restarts from the paused step This sequence can be saved and opened by Save and Open button on the Function3 window The extension of file name is aks Figure 3 Window of F3 ...

Page 9: ... AKD4140 B KM079203 2009 10 9 6 Function4 Dialog The sequence that is created on Function3 can be assigned to buttons and executed When F4 button is clicked the window as shown in Figure 4 opens Figure 4 F4 window ...

Page 10: ...is executed 3 2 SAVE and OPEN buttons on right side SAVE The sequence file names can assign be saved The file name is ak4 OPEN The sequence file names assign that are saved in ak4 are loaded 3 3 Note 1 This function doesn t support the pause function of sequence function 2 All files need to be in same folder used by SAVE and OPEN function on right side 3 When the sequence is changed in Function3 t...

Page 11: ...button and select the register setting file akr 2 Click WRITE button then the register setting is executed 7 2 SAVE and OPEN buttons on right side SAVE The register setting file names assign can be saved The file name is ak5 OPEN The register setting file names assign that are saved in ak5 are loaded 7 3 Note 1 All files need to be in same folder used by SAVE and OPEN function on right side 3 When...

Page 12: ...Bit 16bit Power Supply AVDD DVDD 3 3V Bandwidth 22Hz 15kHz Interface DIT Temperature Room ATTL bit ATTR bit 0 attenuation off Parameter Result Lch Rch Unit S N D 1dB Input 1kHz MONO Stereo SAP 57 1 57 0 57 0 41 4 dB dB dB D Range 60dB Input A weighting MONO Stereo SAP 76 4 74 9 74 9 86 8 dB dB dB S N Input off A weighting MONO Stereo SAP 76 1 74 8 74 7 88 7 dB dB dB ...

Page 13: ...Figure 7 FFT Plot 60dB Figure 8 FFT Plot no input MONO Figure 9 THD N vs Input Level 1kHz Figure 10 THD N vs Input Frequency 15dB Figure 11 Linearity 1kHz Figure 12 Frequency Response 15dB Figure 13 FFT Plot 1dB Figure 14 FFT Plot 60dB Figure 15 FFT Plot no input SAP Figure 16 THD N vs Input Level 1kHz Figure 17 THD N vs Input Frequency 15dB Figure 18 Linearity 1kHz Figure 19 Frequency Response 15...

Page 14: ... 19 06 17 29 47 90 40 85 80 75 70 65 60 55 50 45 d B F S 100 10 90 80 70 60 50 40 30 20 dBr Figure 1 THD N vs Input Level 1kHz AKM 04 19 06 17 37 04 90 40 85 80 75 70 65 60 55 50 45 d B F S 20 10k 50 100 200 500 1k 2k 5k Hz Figure 2 THD N vs Input Frequency 15dB ...

Page 15: ... 19 06 17 41 25 100 0 90 80 70 60 50 40 30 20 10 d B F S 100 0 90 80 70 60 50 40 30 20 10 dBr TT Figure 3 Linearity 1kHz AKM 04 19 06 17 44 51 20 10 19 18 17 16 15 14 13 12 11 d B F S 20 10k 50 100 200 500 1k 2k 5k Hz Figure 4 Frequency Response 15dB ...

Page 16: ... Figure 5 Crosstalk Left Channel Off Right Channel 15dB AKM 04 19 06 17 48 52 140 0 120 100 80 60 40 20 d B F S 20 20k 50 100 200 500 1k 2k 5k 10k Hz Figure 6 FFT Plot 1dB AKM 04 19 06 17 46 33 80 0 70 60 50 40 30 20 10 d B F S 20 10k 50 100 200 500 1k 2k 5k Hz ...

Page 17: ...17 AKM 04 19 06 17 49 52 140 0 120 100 80 60 40 20 d B F S 20 20k 50 100 200 500 1k 2k 5k 10k Hz Figure 7 FFT Plot 60dB AKM 04 19 06 17 50 30 140 0 120 100 80 60 40 20 d B F S 20 20k 50 100 200 500 1k 2k 5k 10k Hz Figure 8 FFT Plot no input ...

Page 18: ...9 06 17 53 32 100 10 90 80 70 60 50 40 30 20 dBr 90 40 85 80 75 70 65 60 55 50 45 d B F S Figure 9 THD N vs Input Level 1kHz AKM 04 19 06 17 54 23 20 10k 50 100 200 500 1k 2k 5k Hz 90 40 85 80 75 70 65 60 55 50 45 d B F S Figure 10 THD N vs Input Frequency 15dB ...

Page 19: ... 19 06 17 59 38 100 0 90 80 70 60 50 40 30 20 10 dBr 100 0 90 80 70 60 50 40 30 20 10 d B F S Figure 11 Linearity 1kHz AKM 04 19 06 18 22 16 20 10k 50 100 200 500 1k 2k 5k Hz 20 10 19 18 17 16 15 14 13 12 11 d B F S Figure 12 Frequency Response 15dB ...

Page 20: ...0 20 AKM 04 19 06 18 04 41 20 20k 50 100 200 500 1k 2k 5k 10k Hz 140 0 120 100 80 60 40 20 d B F S Figure 13 FFT Plot 1dB AKM 04 19 06 18 04 06 20 20k 50 100 200 500 1k 2k 5k 10k Hz 140 0 120 100 80 60 40 20 d B F S Figure 14 FFT Plot 60dB ...

Page 21: ...8 05 06 20 20k 50 100 200 500 1k 2k 5k 10k Hz 140 0 120 100 80 60 40 20 d B F S Figure 15 FFT Plot no input Plot SAP AKM 04 19 06 18 08 57 100 10 90 80 70 60 50 40 30 20 dBr 100 40 95 90 85 80 75 70 65 60 55 50 45 d B F S Figure 16 THD N vs Input Level 1kHz ...

Page 22: ...8 10 36 20 10k 50 100 200 500 1k 2k 5k Hz 100 40 95 90 85 80 75 70 65 60 55 50 45 d B F S T T T Figure 17 THD N vs Input Frequency 15dB AKM 04 19 06 18 13 17 100 10 90 80 70 60 50 40 30 20 dBr 100 0 90 80 70 60 50 40 30 20 10 d B F S Figure 18 Linearity 1kHz ...

Page 23: ...M 04 19 06 18 15 23 20 10k 50 100 200 500 1k 2k 5k Hz 20 10 19 18 17 16 15 14 13 12 11 d B F S Figure 19 Frequency Response 15dB AKM 04 19 06 18 17 12 20 20k 50 100 200 500 1k 2k 5k 10k Hz 140 0 120 100 80 60 40 20 d B F S Figure 20 FFT Plot 1dB ...

Page 24: ...4 AKM 04 19 06 18 17 59 20 20k 50 100 200 500 1k 2k 5k 10k Hz 140 0 120 100 80 60 40 20 d B F S Figure 21 FFT Plot 60dB AKM 04 19 06 18 18 25 20 20k 50 100 200 500 1k 2k 5k 10k Hz 140 0 120 100 80 60 40 20 d B F S Figure 22 FFT Plot no input ...

Page 25: ...ded nor authorized for use as critical componentsNote1 in any safety life support or other hazard related device or systemNote2 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 function or perform may reasonably be expected to result wheth...

Page 26: ...I1 21 TSTI2 22 TST1 23 TST2 24 C8 0 1u C8 0 1u R21 10k R21 10k LE2 INT0 LE2 INT0 A K JP3 MCLK JP3 MCLK U1C 74HC14_1 U1C 74HC14_1 5 6 U3A 74HCU04 U3A 74HCU04 1 2 C9 47u C9 47u R12 10k R12 10k JP7 TDMIN JP7 TDMIN R8 1k R8 1k R23 short R23 short C6 47u C6 47u C13 10u C13 10u R2 short R2 short R24 51 R24 51 R5 1k R5 1k R6 0 R6 0 JP5 LRCK JP5 LRCK U3B 74HCU04 U3B 74HCU04 3 4 JP2 XTE JP2 XTE LE1 INT1 LE...

Page 27: ...0 6 DFS1 7 DEM 8 ROUT 10 LOUT 11 VCOM 12 VSS 13 DIF1 15 VDD 14 PM 16 DIF0 9 R101 short R101 short C22 0 1u C22 0 1u J3 LOUT J3 LOUT C30 10u C30 10u R28 10k R28 10k SW4 DAC DIT SW4 DAC DIT 1 2 3 4 8 7 6 5 R29 220 R29 220 C21 0 1u C21 0 1u C23 47u C23 47u C32 22u C32 22u 0 1u 0 1u R100 short R100 short U6 AK4103A U6 AK4103A V1 1 TRANS 2 RESETN 3 MCLK 4 SDTI 5 BICK 6 LRCK 7 FS0 CSN 8 FS1 CDTI 9 FS2 C...

Page 28: ... 28 ...

Page 29: ... 29 ...

Page 30: ... 30 ...

Page 31: ... 31 ...

Reviews: