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AKM AKD4648-C, Руководство пользователя

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[AKD4648-C] 

<KM088701>  

2007/04 

 

- 1 - 

 

 

GENERAL DESCRIPTION 

AKD4648 is an evaluation board for the AK4648, stereo CODEC with MIC/HP/SPK amplifier. The 
AKD4648 can evaluate A/D converter and D/A converter separately in addition to loopback mode (A/D 

→

 

D/A). The AKD4648 also has the digital audio interface and can achieve the interface with digital audio 
systems via opt-connector. 
 
 

„

 

Ordering guide 

 

  AKD4648   ---   Evaluation board for AK4648 

(Cable, USB interface board for connecting with USB port, and control software are 
packed with this. This control software does not support Windows NT.) 

 
 

FUNCTION 

 

•

 

DIT/DIR with optical input/output 

•

 

10pin Header for digital audio interface 

•

 

10pin Header for serial control mode

 

 

AGND

AK4115

Opt In

AK4648

HVDD

AVDD

HP

Opt out

PORT1

PORT2

LINE
OUT

DVDD

TVDD

SPK

D3V

MIC

MIN

LINE

IN

VCC

Regulator

10pin Header

DSP

PORT3

10pin Header

Control Data

PORT4

TVDD

3.3 V

DIR

DIT

 

Figure 1. AKD4648-C Block Diagram

 

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

Evaluation board Rev.1 for AK4648

AKD4648-C

Содержание AKD4648-C

Страница 1: ...4648 Cable USB interface board for connecting with USB port and control software are packed with this This control software does not support Windows NT FUNCTION DIT DIR with optical input output 10pin...

Страница 2: ...up the power supply lines VCC red 4 3 5 0V typ 4 5V for regulator and HVDD of AK4648 regulator 3 3V output AVDD and DVDD of the AK4648 and logic TVDD orange 1 6 3 6V typ 3 3V for TVDD of AK4648 TVDD D...

Страница 3: ...AK4115 1 3 Evaluation of Loop back using AK4115 Default 1 4 All interface signals are fed externally 2 External Master Mode 2 1 Evaluation of A D using DIT of AK4115 2 2 Evaluation of D A using DIR of...

Страница 4: ...follows 1 3 Evaluation of Loop back using AK4115 Default X1 X tal is used Nothing should be connected to PORT1 DIR and PORT3 DSP The jumper pins should be set as follows 1 4 All interface signals are...

Страница 5: ...le2 on page 11 The jumper pins should be set as follows 2 3 Evaluation of Loop back using AK4115 X1 X tal is used Nothing should be connected to PORT1 DIR and PORT3 DSP The jumper pins should be set a...

Страница 6: ...15 s XTI X tal oscillator should be removed from X1 The jumper pins should be set as follows 3 1 3 All interface signals are fed externally PORT3 DSP is used Nothing should be connected to PORT1 DIR a...

Страница 7: ...ins should be set as follows 3 2 3 Evaluation of Loop back using AK4115 X1 X tal is used Nothing should be connected to PORT1 DIR PORT2 DIT and PORT3 DSP The jumper pins should be set as follows JP17...

Страница 8: ...8 should be input to AK4115 Please refer to Table2 on page 11 The jumper pins should be set as follows 4 2 Evaluation of Loop back PORT2 DIT and PORT3 DSP are used Nothing should be connected to PORT1...

Страница 9: ...PLL reference clock should be connected to MCLK of PORT3 In case of supplying MCKO to DSP the JP14 4115_MCKI s lower side should be connected to MCLK of DSP X tal oscillator should be removed from X1...

Страница 10: ...ting See Table 2 OFF Table 1 Mode Setting for AK4648 and AK4115 LRCK BICK Mode DIF1 DIF0 DAUX SDTO I O I O 1 0 0 24bit Left justified 24bit Left justified H L O 64fs O 2 0 1 24bit I2 S 24bit I2 S L H...

Страница 11: ...P8 LIN2 Selection of using MIC power supply for LIN2 SHORT MIC power is supplied OPEN MIC power is not supplied Default JP9 RIN2 Selection of using MIC power supply for RIN2 SHORT MIC power is supplie...

Страница 12: ...ial Control The AKD4648 C can be connected via the USB port with attached USB interface board Connect PORT4 CTRL with PC by 10 wire flat cable packed with the AKD4648 C Table 4 shows switch and jumper...

Страница 13: ...9 RIN2 C20 1u R13 2 2k JP4 LIN1 6 4 3 J3 LIN2 RIN2 C15 1u 6 4 3 J1 LIN1 RIN1 R12 2 2k JP7 RIN1 C13 1u C19 1u LIN1 RIN2 LIN2 MPWR RIN1 JP8 LIN2 R17 2 2k R16 2 2k JP12 LIN3 C21 1u C22 1u 6 4 3 J5 MIN LI...

Страница 14: ...ld be set as follows AIN3 bit 1 Register Address 21H When MIN path of AK4648 is used JP12 should be set as follows AIN3 bit 1 Register Address 21H When MIC power output MPWR pin of AK4648 is used JP4...

Страница 15: ...6 220u 6 4 3 J2 HP R14 10 HPR HPL JP5 HPL Cap less JP3 HPR Cap less HVCM GND JP6 Figure 4 HP Output Circuit 2 1 1 Single ended Mode The jumper pins should be set as follows 2 1 2 Pseudo Cap less Mode...

Страница 16: ...48 C KM088701 2007 04 16 2 2 LOUT ROUT Output Circuit R19 open C24 1u C26 1u 6 4 3 J7 LOUT ROUT LOUT ROUT JP13 LINEOUT Figure 5 LOUT ROUT Output Circuit The jumper pins should be set as follows JP13 L...

Страница 17: ...e 6 SPK Output Circuit 2 3 1 Stereo SPK Mode The jumper pins should be set as follows 2 3 2 Mono SPK Mode The jumper pins should be set as follows 2 3 3 High Power SPK Mode The jumper pins should be s...

Страница 18: ...p the following flow 1 Set up the control program according to explanation above 2 Click Port Reset button Explanation of each buttons Port Reset Set up the USB interface board AKDUSBIF A Write defaul...

Страница 19: ...click OK button If not click Cancel button 3 Function2 Dialog Dialog to evaluate IVOL and DVOL Address Box Input registers address in 2 figures of hexadecimal Start Data Box Input starts data in 2 fig...

Страница 20: ...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 AK4648 Th...

Страница 21: ...val 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 th...

Страница 22: ...8 C KM088701 2007 04 22 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 8 opens Figure 8 F4...

Страница 23: ...cuted 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...

Страница 24: ...ns and executed When F5 button is clicked the following window as shown in Figure 10 opens Figure 10 F5 window 7 1 OPEN buttons on left side and WRITE button 1 Click OPEN button and select the registe...

Страница 25: ...n 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...

Страница 26: ...ole frequency of EQ unit Hz Zero Frequency of EQ Input value of zero frequency of EQ unit Hz FIL3 GAIN Input value of gain of FIL3 0 10dB unit dB EQ GAIN Input value of gain of EQ 12 0dB unit dB 8 2 C...

Страница 27: ...his dialog can easily set the AK4648 s 5 Band Equalizer Figure 13 5 Band EQ window When the check box of 5 Band EQ is checked 5 Band Equalizer is ON FBEQ bit 1 When the slide button is changed its val...

Страница 28: ...dition Measurement unit Audio Precision System two Cascade Dual Domain EXT Slave Mode BICK 64fs Bit 16bit Measurement Frequency 10Hz 20kHz ADC 10Hz 22kHz DAC Power Supply AVDD DVDD TVDD 3 3V HVDD 4 5V...

Страница 29: ...2 3 DAC HP Single ended Mode characteristics DAC HP Single ended Mode RL 16 Parameter Lch dB Rch dB S N D 20kHzLPF 3dB HPG 0dB 69 4 69 5 S N A weighted 91 1 91 1 DAC HP Pseudo Cap less Mode characteri...

Страница 30: ...10 100 90 80 70 60 50 40 30 20 10 dBr 100 60 98 96 94 92 90 88 86 84 82 80 78 76 74 72 70 68 66 64 62 d B F S Figure 14 THD N vs Input Level AK4648 LIN2 RIN2 ADC MGAIN 20dB THD N vs Input Frequency fs...

Страница 31: ...50 40 30 20 10 dBr 100 0 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 d B F S Figure 16 Linearity AK4648 LIN2 RIN2 ADC MGAIN 20dB Frequency Response fs 44 1kHz 1dB Input 20 20k 50 100 200 5...

Страница 32: ...500 1k 2k 5k 10k Hz 140 0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B F S Figure 18 FFT Plot Input level 1dBFS AK4648 LIN2 RIN2 ADC MGAIN 20dB FFT fs 44 1kHz 60dB Input 20 20k 50 100 200 500 1k 2k...

Страница 33: ...20 110 100 90 80 70 60 50 40 30 20 10 d B F S Figure 20 FFT Plot No signal AK4648 LIN2 RIN2 ADC MGAIN 20dB Crosstalk fs 44 1kHz 1dB Input red R L blue L R 20 20k 50 100 200 500 1k 2k 5k 10k Hz 140 70...

Страница 34: ...0 70 60 50 40 30 20 10 dBr 100 60 98 96 94 92 90 88 86 84 82 80 78 76 74 72 70 68 66 64 62 d B F S Figure 22 THD N vs Input Level AK4648 LIN2 RIN2 ADC MGAIN 0dB THD N vs Input Frequency fs 44 1kHz 1dB...

Страница 35: ...50 40 30 20 10 dBr 100 0 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 d B F S Figure 24 Linearity AK4648 LIN2 RIN2 ADC MGAIN 0dB Frequency Response fs 44 1kHz 1dB Input 20 20k 50 100 200 50...

Страница 36: ...500 1k 2k 5k 10k Hz 140 0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B F S Figure 26 FFT Plot Input level 1dBFS AK4648 LIN2 RIN2 ADC MGAIN 0dB FFT fs 44 1kHz 60dB Input 20 20k 50 100 200 500 1k 2k...

Страница 37: ...k 2k 5k 10k Hz 140 0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B F S Figure 28 FFT Plot No signal AK4648 LIN2 RIN2 ADC MGAIN 0dB Crosstalk fs 44 1kHz 1dB Input red R L blue L R 20 20k 50 100 200 50...

Страница 38: ...120 0 110 100 90 80 70 60 50 40 30 20 10 dBFS 100 40 95 90 85 80 75 70 65 60 55 50 45 d B r A Figure 30 THD N vs Input Level AK4648 DAC LINEOUT THD N vs Input Frequency fs 44 1kHz 0dB Input 20 20k 50...

Страница 39: ...0 40 30 20 10 dBFS 100 0 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 d B r A Figure 32 Linearity AK4648 DAC LINEOUT Frequency Response fs 44 1kHz 0dB Input 20 20k 50 100 200 500 1k 2k 5k 1...

Страница 40: ...500 1k 2k 5k 10k Hz 140 0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B r A Figure 34 FFT Plot Input level 0dBFS AK4648 DAC LINEOUT FFT fs 44 1kHz 60dB Input 20 20k 50 100 200 500 1k 2k 5k 10k Hz 14...

Страница 41: ...140 0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B r A Figure 36 FFT Plot No signal AK4648 DAC LINEOUT Crosstalk fs 44 1kHz 0dB Input red R L blue L R 20 20k 50 100 200 500 1k 2k 5k 10k Hz 120 80 1...

Страница 42: ...z fin 1kHz 120 0 110 100 90 80 70 60 50 40 30 20 10 dBFS 100 40 95 90 85 80 75 70 65 60 55 50 45 d B r A Figure 38 THD N vs Input Level AK4648 DAC HP Single end THD N vs Input Frequency fs 44 1kHz 0dB...

Страница 43: ...40 30 20 10 dBFS 100 0 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 d B r A T Figure 40 Linearity AK4648 DAC HP Single end Frequency Response fs 44 1kHz 0dB Input 2k 20k 4k 6k 8k 10k 12k 1...

Страница 44: ...500 1k 2k 5k 10k Hz 140 0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B r A Figure 42 FFT Plot Input level 0dBFS AK4648 DAC HP Single end FFT fs 44 1kHz 60dB Input 20 20k 50 100 200 500 1k 2k 5k 10k...

Страница 45: ...00 200 500 1k 2k 5k 10k Hz 140 0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B r A Figure 44 FFT Plot No signal AK4648 DAC HP Single end Crosstalk fs 44 1kHz 0dB Input 20 20k 50 100 200 500 1k 2k 5k...

Страница 46: ...DAC DAC HP Pseudo Cap less Mode HPG 0dB AK4648 DAC HP Pseudo Cap less THD N vs Input Level fs 44 1kHz fin 1kHz 120 0 110 100 90 80 70 60 50 40 30 20 10 dBFS 100 40 95 90 85 80 75 70 65 60 55 50 45 d B...

Страница 47: ...5k 10k Hz 100 40 95 90 85 80 75 70 65 60 55 50 45 d B r A Figure 47 THD N vs Input Frequency Non invert signal input AK4648 DAC HP Pseudo Cap less THD N vs Input Frequency fs 44 1kHz 0dB Input 20 20k...

Страница 48: ...0 40 30 20 10 dBFS 100 0 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 d B r A T Figure 49 Linearity AK4648 DAC HP Pseudo Cap less Frequency Response fs 44 1kHz 0dB Input 20 20k 50 100 200 5...

Страница 49: ...500 1k 2k 5k 10k Hz 140 0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B r A Figure 51 FFT Plot Input level 0dBFS AK4648 DAC HP Pseudo Cap less FFT fs 44 1kHz 60dB Input 20 20k 50 100 200 500 1k 2k 5...

Страница 50: ...0 200 500 1k 2k 5k 10k Hz 140 0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B r A Figure 53 FFT Plot No signal AK4648 DAC HP Pseudo Cap less Crosstalk fs 44 1kHz 0dB Input red R L blue L R 20 20k 50...

Страница 51: ...fin 1kHz 120 0 110 100 90 80 70 60 50 40 30 20 10 dBFS 100 40 95 90 85 80 75 70 65 60 55 50 45 d B r A Figure 55 THD N vs Input Level AK4648 DAC SPK stereo THD N vs Input Frequency fs 44 1kHz 0dB Inpu...

Страница 52: ...0 40 30 20 10 dBFS 100 0 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 d B r A Figure 57 Linearity AK4648 DAC SPK stereo Frequency Response fs 44 1kHz 0dB Input 20 20k 50 100 200 500 1k 2k 5...

Страница 53: ...500 1k 2k 5k 10k Hz 140 0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B r A Figure 59 FFT Plot Input level 0dBFS AK4648 DAC SPK stereo FFT fs 44 1kHz 60dB Input 20 20k 50 100 200 500 1k 2k 5k 10k Hz...

Страница 54: ...0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B r A Figure 61 FFT Plot No signal AK4648 DAC SPK stereo Crosstalk fs 44 1kHz 0dB Input red R L blue L R 20 20k 50 100 200 500 1k 2k 5k 10k Hz 120 70 117...

Страница 55: ...mplitude Lch Green Rch Yellow THD N vs Amplitude Lch Red Rch Blue 0 1 2 100m 200m 300m 400m 500m 600m 700m 800m 9 1 1 1 W 60 0 55 50 45 40 35 30 25 20 15 10 5 dBFS 120 0 110 100 90 80 70 60 50 40 30 2...

Страница 56: ...kHz fin 1kHz 120 0 110 100 90 80 70 60 50 40 30 20 10 dBFS 100 40 95 90 85 80 75 70 65 60 55 50 45 d B r A Figure 66 THD N vs Input Level AK4648 DAC SPK High power THD N vs Input Frequency fs 44 1kHz...

Страница 57: ...0 40 30 20 10 dBFS 100 0 95 90 85 80 75 70 65 60 55 50 45 40 35 30 25 20 15 10 5 d B r A Figure 68 Linearity AK4648 DAC SPK High power Frequency Response fs 44 1kHz 0dB Input 20 20k 50 100 200 500 1k...

Страница 58: ...500 1k 2k 5k 10k Hz 140 0 130 120 110 100 90 80 70 60 50 40 30 20 10 d B r A Figure 70 FFT Plot Input level 0dBFS AK4648 DAC SPK High power FFT fs 44 1kHz 60dB Input 20 20k 50 100 200 500 1k 2k 5k 10...

Страница 59: ...90 80 70 60 50 40 30 20 10 d B r A Figure 72 FFT Plot No signal AK4648 DAC SPK High power Level W vs Amplitude Green THD N vs Amplitude Red 0 1 2 100m 200m 300m 400m 500m 600m 700m 800m 9 1 1 1 W 60...

Страница 60: ...responsibility relating to any such use except with the express written consent of the Representative Director of EMD As used here a A hazard related device or system is one designed or intended for l...

Страница 61: ...10u R8 51 R8 51 R1 10k R1 10k NC A1 HVDD A2 SPRP A4 ROUT LON A5 LIN4 IN4 A6 TEST A7 SPLN B1 SPLP B2 VSS2 B3 SPRN B4 LOUT LOP B5 RIN2 IN2 B6 VCOM B7 VSS2 C1 HVCM C2 RIN4 IN4 C4 LIN2 IN2 C5 LIN3 MIN C6...

Страница 62: ...n R19 open R13 2 2k R13 2 2k 6 4 3 J2 HP J2 HP JP11 High SPP JP11 High SPP C21 1u C21 1u R16 2 2k R16 2 2k C16 220u C16 220u 6 4 3 J5 MIN LIN3 RIN3 J5 MIN LIN3 RIN3 C24 1u C24 1u R17 2 2k R17 2 2k 1 T...

Страница 63: ...1u C35 0 1u GND 1 VCC 2 IN 3 PORT2 TOTX141 PORT2 TOTX141 OUT 1 VCC 3 GND 2 PORT1 TORX141 PORT1 TORX141 C39 0 1u C39 0 1u R22 5 1 R22 5 1 C31 10u C31 10u C38 0 1u C38 0 1u C30 0 1u C30 0 1u C41 0 1u C4...

Страница 64: ...B 23 OE 22 U3 74AVC8T245 U3 74AVC8T245 R23 10k R23 10k JP18 Signal V select JP18 Signal V select A1 3 A2 4 A3 5 A4 6 A5 7 A6 8 A7 9 A8 10 B1 21 B2 20 B3 19 B4 18 B5 17 B6 16 B7 15 B8 14 GND 11 GND 12...

Страница 65: ...Number Rev Date Sheet of POWER 1 AKD4648 C B 5 5 Friday March 30 2007 VCC REG AGND AGND C53 0 1u C53 0 1u JP23 TVDD SEL JP23 TVDD SEL R29 10 R29 10 C52 0 1u C52 0 1u 1 AGND1 T45_BK AGND1 T45_BK 1 2 C5...

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