AKD4554资料

ASAHI KASEI

[AKD4554]

AKD4554-E

Evaluation board Rev.0 for AK4554

GENERAL DESCRIPTION

AKD4554-E is an evaluation board for the portable digital audio 16bit A/D and D/A converter, AK4554. The AKD4554-E can evaluate A/D converter and D/A converter separately in addition to loopback mode (A/D → D/A). The A/D section can be evaluated by interfacing with AKM’s DAC evaluation boards directly. The AKD4554 has the interface with AKM’s ADC evaluation boards. Therefore, it’s easy to evaluate the D/A section. The AKD4554-E also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector.

󰂄 Ordering guide

AKD4554 -E --- Evaluation board for AK4554

FUNCTION

• Compatible with 2 types of interface

- Direct interface with AKM’s A/D & D/A converter evaluation boards - DIT/DIR with optical input/output

󰀳󰀦󰀨󰀁󰀷󰀥󰀥󰀁󰀢󰀨󰀯󰀥󰀥󰀨󰀯󰀥󰀰󰁑󰁕󰀁󰀪󰁏󰀁

󰀳󰁆󰁈󰁖󰁍󰁂󰁕󰁐󰁓󰀁󰀢󰀬󰀕󰀒󰀒󰀕󰀥󰀪󰀵󰀐󰀥󰀪󰀳󰀢󰀪󰀯󰀭󰀐󰀁󰀢󰀪󰀯󰀳󰀁󰀰󰁑󰁕󰀁󰀰󰁖󰁕

AK4554󰀒󰀑󰁑󰁊󰁏󰀁󰀩󰁆󰁂󰁅󰁆󰁓󰀥󰀴󰀱󰀁󰀢󰀰󰀶󰀵󰀭󰀐󰀢󰀰󰀶󰀵󰀳󰀁

Figure 1. AKD4554-E Block Diagram

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

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Evaluation Board Manual

󰂄 Operation sequence

1) Set up the power supply lines. [VDD] (Orange) = 1.6 ∼ 3.6V : for VDD of AK4554

[REG] (Red) = 5.0V : for regulator

[AGND] (Black) = 0V : for analog ground (including VSS of AK4554) [DGND] (Black) = 0V : for logic ground

Each supply line should be distributed from the power supply unit.

2) Set up the evaluation mode, jumper pins and DIP switches. (See the followings.)

3) Power on.

The AK4554 should be reset once bringing SW2 (PDN) “OFF” upon power-up.

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[AKD4554]

󰂄 Evaluation mode

Applicable Evaluation Mode

1) Evaluation of loopback mode (default)

2) Evaluation of D/A using A/D converted data 3) Evaluation of D/A using DIR (Optical Link) 4) Evaluation of A/D using D/A converted data 5) Evaluation of A/D using DIT (Optical Link)

6) All interface signals including master clock are fed externally.

5) 4)AKD43XX D/A Board PORT2DITAKD4554-E 1) PORT1DIRPORT310pin-Header CD Player3)AKD53XX A/D Board 2)

1) Evaluation of loopback mode. (default)

Nothing should be connected to PORT1/PORT3.

JP4 MCLK

JP5SCLK

JP6LRCK

JP7SDTI

DIRADC

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[AKD4554]

2) Evaluation of D/A using A/D converted data.

D/A part can be evaluated by connecting with AKM’s A/D evaluation boards via PORT3. Nothing should be connected to PORT1

JP4 MCLK

JP5SCLK

JP6LRCK

JP7SDTI

DIRADC

3) Evaluation of D/A using DIR. (Optical link)

PORT1 (TORX141) is used. DIR generates MCLK, SCLK, LRCK and SDATA from the received data through optical connector (TORX141). Used for the evaluation using CD test disk. Nothing should be connected to PORT2/PORT3.

JP4 MCLK

JP5SCLK

JP6LRCK

JP7SDTI

DIRADC

4) Evaluation of A/D using D/A converted data.

A/D part can be evaluated by connecting with AKM’s D/A evaluation boards via PORT3. Nothing should be connected to PORT1.

JP4 MCLK

JP5SCLK

JP6LRCK

JP7SDTI

DIRADC

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[AKD4554]

5) Evaluation of A/D using DIT. (Optical link)

PORT2 (TOTX141) is used. DIT generates audio bi-phase signal from received data and which is output through optical connector (TOTX141). It is possible to connect AKM’s D/A converter evaluation boards on the digital-amplifier, which equips DIR input.

JP4 MCLK

JP5SCLK

JP6LRCK

JP7SDTI

DIRADC

6) All interfacing signals (MCLK, SCLK, LRCK) are fed from the external circuit through PORT3.

Under the following set-up, all external signals needed for the AK4554 to operate could be fed through PORT3.

JP4 MCLK

JP5SCLK

JP6LRCK

JP7SDTI

DIRADC

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[AKD4554]

󰂄 DIP switch set up

Upper-side is “ON” (“H”) and lower side is “OFF” (“L”).

[SW1]: Set up the AK4554 and AK4114.

.

SW No. SW Name

Mode

1 DIF2, 0 AK4554 and AK4114 Audio Format Setting

Always OFF.

2 DEM1 Set up the de-emphasis of AK4554 3

DEM0

(See table 2)

4 NC No use

Table 1. DIPswitch set-up of AK4114

DEM1 DEM0

(SW1-#2) (SW1-#3) Mode

OFF OFF 44.1kHz OFF ON OFF

ON OFF 48kHz ON ON 32kHz Table 2. DIPswitch set up of de-emphasis

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[AKD4554]

󰂄 Other jumper pins set up

[JP1] (GND): Connection between AGND and DGND open: Both grounds are separated on board. short: Both grounds are connected on board.

[JP2] (REG): Select to regulator open: On-board regulator is not used. short: On-board regulator is used.(The connector “VDD” can be open.)

[JP3] (PWR): Pull up power supply select for SDTO. VDD: Connected to VDD of AK4554. D3V: Supplied from regulator (3V).

󰂄 The function of the toggle SW.

Upper-side is “ON” and lower side is “OFF”.

[SW2] (PDN): Resets the AK4554 and AK4114. Keep “ON” during normal operation.

󰂄 Indication for LED

[LED1] (ERF): Monitor INT0 pin of the AK4114. LED turns on when some error has occurred to AK4114.

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[AKD4554]

󰂄 Input Circuit

J1C2864.7u4+AINR3R20AINL/AINR560C294.7u+AINLR21560Figure 2. Input circuit on board

󰂄 Output Circuit

R24+220AOUTR6J2C30R23422u10k3R25AOUTL/AOUTR+220AOUTLC3122uR2210kFigure 3. Output circuit on board

* AKM assumes no responsibility for the trouble when using the circuit examples.

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[AKD4554]

MEASUREMENT RESULTS

[Measurement condition]

• Measurement unit : Audio Precision, System two • MCLK : 256fs • SCLK : 64fs • fs : 44.1kHz • Bit : 16bit

• Power Supply : VDD = VP = 2.5V, VD = 5V • Interface : DIT/DIR • Temperature : Room

1. ADC

VDD Parameter Measured Filter AINL AINR S/(N+D) (-0.5dBFS) 20kHz LPF 80.9 dB 81.0 dB

2.5V D-Range (-60dBFS) 20kLPF + A-weighted 89.4 dB 89.2 dB

S/N (0 data) 20kLPF + A-weighted 89.3 dB 89.2 dB

2. DAC

VDD Parameter Measured Filter AOUTL AOUTR S/(N+D) (0dBFS) 20kHz LPF 84.5 dB 84.5 dB D-Range (-60dBFS) 22kLPF + A-weighted 91.6 dB 91.7 dB 2.5V

S/N (0 data) 22kLPF + A-weighted 91.9 dB 92.1 dB

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[AKD4554]

3.PLOT DATA 3-1 ADC

AKM

-60-62-64-66-68-70-72dBFS

-74-76-78-80-82-84-86-88-90-120

AK4554 ADC THD+N vs.Input LevelVDD=2.5V, fs=44.1kHz, fin=1kHz

-110-100-90-80-70-60dBr

-50-40-30-20-10

Fig. 1 THD+N vs. Input Level

AKM

-60-62-64-66-68-70-72dBFS

-74-76-78-80-82-84-86-88-9020

AK4554 ADC THD+N vs. Input FrequencyVDD=2.5V, fs=44.1kHz, Input Level=-0.5dB

50100200500

Hz

1k2k5k10k20k

Fig.2 THD+N vs. Input Frequency

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[AKD4554]

AKM

+0-10-20-30-40dBFS

-50-60-70-80-90-100AK4554 ADC Linearity

VDD=2.5V, fs=44.1kHz, fin=1kHz

-110-110-100-90-80-70-60dBr

-50-40-30-20-10+0Fig.3 Linearity

AKM

+0-0.2-0.4-0.6-0.8-1-1.2dBFS

-1.4-1.6-1.8-2-2.2-2.4-2.6-2.8-320

AK4554 ADC Frequency ResponseVDD=2.5V, fs=44.1kHz, Input level=-0.5dB

50100200500

Hz

1k2k5k10k20k

Fig.4 Frequency Response

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[AKD4554]

AKM

+0-10-20-30-40-50-60dBFS

-70-80-90-100-110-120-130-140-150-16020

50

100

200

500

Hz

1k

2k

5k

10k

20k

AK4554 ADC FFT Plot

VDD=2.5V, fs=44.1kHz, fin=1kHz, Input Level=-0.5dB

Fig.5 FFT Plot (Input Level = -0.5dB)

AKM

+0-10-20-30-40-50-60dBFS

-70-80-90-100-110-120-130-140-150-16020

50

100

200

500

Hz

1k

2k

5k

10k

20k

AK4554 ADC FFT Plot

VDD=2.5V, fs=44.1kHz, fin=1kHz, Input Level=-60dB

Fig.6 FFT Plot (Input Level = -60dB)

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[AKD4554]

AKM

+0-10-20-30-40-50-60dBFS

-70-80-90-100-110-120-130-140-150-1602050100200500Hz

1k2k5k10k20kAK4554 ADC FFT

VDD=2.5V, fs=44.1kHz, Input Level=-0.5dB

Fig.7 FFT Plot (no signal)

Fig.8 Crosstalk (red : L--->R, blue : R--->L)

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[AKD4554]

3-2. DAC

AKM

-60-62-64-66-68-70-72-74-76dBr A

-78-80-82-84-86-88-90-92-94-96-98-100-120

-110

-100

-90

-80

-70

-60dBFS

-50

-40

-30

-20

-10

+0

AK4554 DAC THD+N vs. Input LevelVDD=2.5V, fs=44.1kHz, fin=1kHz

Fig.9 THD+N vs. Input Level

AKM

-60-62-64-66-68-70-72-74-76dBr A

-78-80-82-84-86-88-90-92-94-96-98-10020

50

100

200

500

Hz

1k

2k

5k

10k

20k

AK4554 DAC THD+N vs. Input FrequencyVDD=2.5V, fs=44.1kHz, Input Level=0dB

Fig.10 THD+N vs. Input Frequency

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[AKD4554]

AKM

+0-10-20-30-40-50-60-70-80-90-100-110-120-120

AK4554 DAC Linearity

VDD=2.5V, fs=44.1kHz, fin=1kHz

dBr A

-110-100-90-80-70-60dBFS

-50-40-30-20-10+0

Fig.11 Linearity

AKM

+1+0.9+0.8+0.7+0.6+0.5+0.4+0.3+0.2dBr A

+0.1+0-0.1-0.2-0.3-0.4-0.5-0.6-0.7-0.8-0.9-12k

4k

6k

8k

10kHz

12k

14k

16k

18k

20k

AK4554 DAC Frequency ResponseVDD=2.5V, fs=44.1kHz, Input Level=0dB

Fig.12 Frequency Response

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[AKD4554]

AKM

+0-10-20-30-40-50-60dBr A

-70-80-90-100-110-120-130-140-150-16020

50

100

200

500

Hz

1k

2k

5k

10k

20k

AK4554 DAC FFT Plot

VDD=2.5V, fs=44.1kHz,fin=1kHz, Input Level=0dB

Fig.13 FFT Plot (Input Level = 0dB)

AKM

+0-10-20-30-40-50-60dBr A

-70-80-90-100-110-120-130-140-150-16020

50

100

200

500

Hz

1k

2k

5k

10k

20k

AK4554 DAC FFT Plot

VDD=2.5V, fs=44.1kHz,fin=1kHz, Input Level=-60dB

Fig.14 FFT Plot (Input Level = -60dB)

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[AKD4554]

AKM

+0-10-20-30-40-50-60dBr A

-70-80-90-100-110-120-130-140-150-1602050100200500Hz

1k2k5k10k20kAK4554 DAC FFT

VDD=2.5V, fs=44.1kHz, Input Level=0dB

Fig.15 FFT Plot (no data)

Fig.16 Crosstalk (red : L--->R, blue : R--->L)

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[AKD4554]

AKM

+0-10-20-30-40-50-60dBr A

-70-80-90-100-110-120-130-140-150-16020501002005001kHz

2k5k10k20k50k100kAK4554 DAC out-band-noise

VDD=2.5V, fs=44.1kHz, Input=no data

Fig.17 Out band noise

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[AKD4554]

Revision History

Date Manual Board Reason Contents (YY/MM/DD) Revision Revision

05/03/31 KM077900 0 First Edtion

IMPORTANT NOTICE

• These products and their specifications are subject to change without notice. Before considering any use or application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM) sales office or authorized distributor concerning their current status.

• AKM assumes no liability for infringement of any patent, intellectual property, or other right in the application or use of any information contained herein.

• Any export of these products, or devices or systems containing them, may require an export license or other official approval under the law and regulations of the country of export pertaining to customs and tariffs, currency exchange, or strategic materials.

• AKM products are neither intended nor authorized for use as critical components in any safety, life support, or other hazard related device or system, and AKM assumes no responsibility relating to any such use, except with the express written consent of the Representative Director of AKM. As used here:

(a) 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.

(b) A critical component is one whose failure to function 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.

• It is the responsibility of the buyer or distributor of an AKM product who distributes, disposes of, or otherwise places the product with a third party to notify that 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 AKM harmless from any and all claims arising from the use of said product in the absence of such notification.

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ABCDE元器件交易网www.cecb2b.comJ1643C14.7u+REGT45_R1VDDT45_O1AGNDDGND+T45_BKT45_BK11R2220R110kR4220R510k643J2AINL/AINRER3560C222uAOUTL/AOUTREC44.7u+(5V)(1.6-3.6V)REGT1TA4803FGNDINOUT1R6560DGNDJP1GNDAGNDVDC60.1uC7+47uC80.1uC50.1u2U1DD1VCOMAOUTR16VAJP2REG112AINRAOUTL15L1(short)23AINLPWDAN14+C322uREGVAPWDANC1047u+2R75.1+LVCVDDC1110uC90.1u4VSSPWADN135VDDSCLK12R851BCLK6CDEM0MCLK11R951MCLKC7DEM1LRCK10R1051LRCKR1251SDTIR11518SDTOSDTI9AK4554DEM0DEM14554_SDTOBBAATitleSizeDocument NumberAKD4554-EAK4554SheetERevA3Date:ABCD01ofMonday, February 28, 20054ABCDE元器件交易网www.cecb2b.comVD1L247uEVDEDIP SWDIF2, 0AK4555AK4550/4ONOFFDEM1OFFOFFONONDEM0OFFONOFFON44.1kOFF48k32kPORT1VCCGNDOUT2321C1410uC120.1u+C1310uR13470+C150.1uTORX141C160.47uVD41484645444239474340R1418k3837RP1DAVSSVCOMTEST1AVDDINT1RX3RX2RX1RX04321NCNCDIF2,0DEM 1DEM 0123SW1654U2VDU3AINT03611427VDD47kMODE2DEM0DEM12NC1IPS0RR151k2LED1ERF174HC14OCKS0353DIF0OCKS1344TEST2CM1335DIF1CM0324114_PDNTP1EXTCLKCC6NC17DIF2AK4114PDN31XTI30C175pX111.2896MHz218IPS1XTO29C185p9P/SNDAUX28SDTOVD10XTL0MCKO22711BXTL1BICK26DIR_BICKB12VINMCKO1COUTUOUTDVDDBOUTVOUTTVDDDVSSDVSSLRCKTX0TX1SDTO25DIR_SDTO1314151617181920212223C190.1uVD+C200.1u+24DIR_LRCKVDDIR_MCKOPORT2INVCCAC2110u321R165.1VDC2210uGNDATOTX141C230.1uTitleSizeDocument NumberAKD4554-EDIR/DITSheetERevA3Date:ABCD02ofMonday, February 07, 20054ABCDE元器件交易网www.cecb2b.comEEJP3PWRVDDD3VVDDVDR171kU4SDTOPWDAN11Y8A8972141U5A4554_SDTO74LVC07ANSLVCD12Y7A78DMCLK13Y6A67JP4MCLKDIR_MCKOJP5SCLKDIR_BICKJP6LRCKDIR_LRCKBCLK14Y5A56LRCK15Y4A45SDTI16Y3A3417Y2A23C18Y1A12C10GNDG219C240.1uVDLVC20VCCG11MCLKBICKLRCKSDTIVD12345PORT3109876GNDGNDNCNCSDTO74LVC541R19DSP2D11S1588R1810kU3B3VDVD1447U3C5BL31HSW2PDN274HC1474HC14146710k4114_PDNADCB1SDTOC250.1uVDfor74HC14for74LVC07ANSLVCC260.1uC270.1uJP7SDTIDIRDIR_SDTOAATitleSizeDocument NumberAKD4554-ELOGICSheetERevA3Date:ABCD03ofMonday, February 07, 20054ABCDE元器件交易网www.cecb2b.comEEDDCVDLVCCU5B7341474LVC07ANSU5C7561474LVC07ANSU3D974HC141487U5D7981474LVC07ANSBU3E11U5E71410711101474LVC07ANSB74HC14U5F71312141412774LVC07ANSU3F1374HC14AATitleSizeDocument NumberAKD4554-EPINSheetERevA3Date:ABCD04ofMonday, February 07, 20054元器件交易网www.cecb2b.com

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