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AKM AsahiKASEl AK7600VF Manual

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The AKD7600-A is an evaluation board for AK7600VF, which is a highly integrated audio processor
including a stereo ADC, three stereo DAC and digital functions (equalizers, digital filters, delay memories,
etc.). AK7600VF needs 5V power supply. The regulators on the AKD7600-A board supply regulated 5V to
the device and AK7600VF can be also supplied directly 5V without a regulator. This board is composed of
a main board and a sub-board. It is possible to control the setting of the board via an USB port. RCA
connectors are used for inputs and outputs of analog signals. This board also has a digital interface and
can achieve the interface with a digital audio system through an optical connector.
Ordering guide
AKD7600-A
• Read/Write access to control registers of AK7600VF
• Digital audio interface： Optical output (x1)
• ADC 2ch input, DAC 6ch output (external analog circuit)
• USB port for the board control
USB
< KM091700>
GENERAL DESCRIPTION
---  Evaluation board for AK7600VF
  USB cable and control software are packed with this board.
REG(5v)
DOUT
PIC18
F4550
DGND
Figure 1 AKD7600-A Block Diagram
(Note) Each device has X'tal to oscillate clocks separately.
AK7600VF Evaluation Board Rev.1
FUNCTION
+5V
JP18
REG(3.3v)
REG(5v)
AK7600
AK7600
AK4114
- 1 -
[AKD7600-A]
AKD7600-A
+12V
-12V
AIN-L
OPAMP
AIN-R
AIN
AOUT-L1
OPAMP
AOUT-R1
AOUT-L2
OPAMP
AOUT-R2
AOUT-L3
OPAMP
AOUT-R3
AOUT
AGND
2008/04

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Summary of Contents for AKM AsahiKASEl AK7600VF

  • Page 1 [AKD7600-A] AKD7600-A AK7600VF Evaluation Board Rev.1 GENERAL DESCRIPTION The AKD7600-A is an evaluation board for AK7600VF, which is a highly integrated audio processor including a stereo ADC, three stereo DAC and digital functions (equalizers, digital filters, delay memories, etc.). AK7600VF needs 5V power supply. The regulators on the AKD7600-A board supply regulated 5V to the device and AK7600VF can be also supplied directly 5V without a regulator.

  • Page 2: Board Diagram

    [AKD7600-A] Board Diagram Board Diagram PORT2 PORT1 AK4114 REG2 PIC18 F4550 XTAL3 REG3 XTAL1 DGND DGND DZF1 ＋５Ｖ JP13 AGND AK7600 +12V XTAL2 REG1 Universal  Field AGND JP12 -12V AOUT1 AOUT2 AOUT3 Figure 2 AKD7600-A Board Diagram Description (1) AIN/AOUT1/AOUT2/AOUT3(Analog Data) RCA Jacks.

  • Page 3: Evaluation Board Manual

    [AKD7600-A] (5) AK7600VF (U10) This device is a CODEC (2ch ADC, 6ch DAC) with a delay line memory and digital filters such as EQ.  It operates in master mode and the internal sampling rate is 44.1 kHz. (6) PIC18F4550 (U11) USB control chip.

  • Page 4: Evaluation Mode

    [AKD7600-A] 2) Set up the jumper pins and connectors. (According to explanations of ‘Evaluation mode’: P.4 to P.6) 3) USB Connect Connect the board to PC with the USB cable packed. It is required to push down the button ‘SW1’ to initialize PIC18F4550, the control device from PC. 4) Power on Power the board on and start up the AK7600 control software.
  • Page 5 [AKD7600-A] (2) Master Mode of AK7600VF ：MCLK is from X’tal2(Sub-board:X’tal1A), AK4114, or BNC.(The master mode is only for 256fs speed of MCLK(11.2896MHz)) (2-1) MCLK (JP8: MASTER 2-3, JP9: EXT 2-3) (2-1-1) MCLK from X’tal2 (JP9: Master 1-2) 7600 Slave Master (2-1-2) MCLK from AK4114(JP5：DIR 2-3, JP6：Open) 7600 MCLK...
  • Page 6 [AKD7600-A] Other jumper pins set up (1) Configuration of jumpers for the power supplies (JP18, JP19, and J2) Power Supplies Jumper Power Regulator Supply JP18:SHORT J2:OPEN to AVDD and DVDD(5V-C) :Default +5V Power Supply without a regulator JP18:OPEN Supply +5V to J2 to AVDD and DVDD(5V-C) Regulator Supply JP19:SHORT...

  • Page 7: Board Control

    [AKD7600-A] Board control • It is possible to control AKD7600-A via a general USB port. Connect the USB port on board to PC by the packed cable with the board. • AK7600 c ontrol software is packed with this board. The software operation sequence is included in this evaluation board manual.

  • Page 8: Usb Connection

    [AKD7600-A] Control Software Manual Set-up of the evaluation board and control software 1. Setup the AKD7600-A board according to previous. 2. Connect AKD7600-A to PC with the cable packed. Push down the reset button ‘SW1’ to initialize the USB chip.  ...
  • Page 9 [AKD7600-A] Figure 4 Control software * This control software is possible to download an execution file to set up the registers, to set up AK4114 and to use the equalizer. They can be selected by the tab items above. The outside buttons of the tap belong to following explanations. •...
  • Page 10 [AKD7600-A] (1) Register Set-up Figure 5 Register Control Screen Register COMMAND Name Control 00 PMADC PMDAC RSTN Default Table 8 Registers Default Setup CONT00 Register COMMAND Name Control 01 DZD3 DZD2 DZD1 DZLH SMUTE Default Table 9 Registers Default Setup CONT01 Register COMMAND Name...
  • Page 11 [AKD7600-A] Register Name: CONT00 COMMAND (01H) Setting bit (1byte) PMADC PMDAC RSTN Default     It is necessary to change a bit for outputs of the digital signals, PMADC bit(D2), PMDAC bit(D1). • RSTN: Internal timing reset 0: Reset (The DZF pin goes to “H” but Register values are not initialized.) 1: Normal Operation •...
  • Page 12 [AKD7600-A] DAC3 DAC2 DAC1 DZF pin output Level Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Zero Table 11 DZF pin Setup Register Name: CONT02 COMMAND (03H) Setting bit (1byte) LRCK...
  • Page 13 [AKD7600-A] (2) Set-up for AK4114 Figure 6 AK4114 Control Screen •  AK4114 can be setup to make output or to get input. AK4114 Setting Frequency of main clock output from AK4114 0 : 256fs MCLK 1 : 256fs 2 : 512fs 3 : 128fs Master clock operation mode of AK4114 0 : CM = 00...
  • Page 14 [AKD7600-A] (3) Equalizer Figure 7 Equalizer Screen *  The signals from ADC can be adjusted on this [Equalizer] window and sent to DAC1, DAC2 and DAC3. *  Please press the enter key after numbers are put in the boxes for this equalizer set-up. * ...
  • Page 15 [AKD7600-A] ■ Explanation for the each function Function All 16bit 1bit Left Function Figure 9 Function Command Shift Setting(Multiple) Default Value Data 1 (2byte) LI1 Coefficient 1bit left (x2) 0x2000 Data 2 (2byte) RI1 Coefficient 1bit left (x2) 0x2000 Data 3 (2byte) LT Coefficient 1bit left (x2) 0x4000...
  • Page 16 [AKD7600-A] Command Shift Setting(Multiple) Default Value Data 1 (2byte) A12 Coefficient 1bit left (x2) 0x0000 Data 2 (2byte) A11 Coefficient 1bit left (x2) 0x0000 Data 3 (2byte) A10 Coefficient 1bit left (x2) 0x4000 Data 4 (2byte) B12 Coefficient 1bit left (x2) 0x0000 Data 5 (2byte) B11 Coefficient...
  • Page 17 [AKD7600-A] Command Shift Setting(Multiple) Default Value Data 1 (4byte) EQ0 A2 Coefficient 1bit left (x2) 0x00000000 Data 2 (4byte) EQ0 A1 Coefficient 1bit left (x2) 0x00000000 Data 3 (4byte) EQ0 A0 Coefficient 1bit left (x2) 0x04000000 Data 4 (4byte) EQ0 B2 Coefficient 1bit left (x2) 0x00000000 Data 5 (4byte)
  • Page 18 [AKD7600-A] F-ATT, R-ATT, N-ATT Amplify or regulate each Front (L1, R1), Rear (L2, R2) and SW (L3, R3) X’Over filter input data. << 1 << 1 Figure 12 F-ATT, R-ATT, and N-ATT Command Shift Setting(Multiple) Default Value Data 1 (2byte) Front ATT setting coefficient 1bit left (x2) 0x4000...
  • Page 19 [AKD7600-A] Command Shift Setting(Multiple) Default Value Data 1 (4byte) HPF2-1 A2 Coefficient 1bit left (x2) 0x00000000 Data 2 (4byte) HPF2-1 A1 Coefficient 1bit left (x2) 0x00000000 Data 3 (4byte) HPF2-1 A0 Coefficient 1bit left (x2) 0x04000000 Data 4 (4byte) HPF2-1 B2 Coefficient 1bit left (x2) 0x00000000 Data 5 (4byte)
  • Page 20 [AKD7600-A] Command Shift Setting(Multiple) Default Value Data 1 (2byte) Front Gain setting coefficient 1bit left (x2) 0x4000 Data 2 (2byte) Rear Gain setting coefficient 1bit left (x2) 0x4000 Data 3 (2byte) SW(NF) Gain setting coefficient 1bit left (x2) 0x4000 Data 4 (2byte) Dummy 1bit left (x2) 0x0000...

  • Page 21: Spectrum Analyzer

    [AKD7600-A] Command Setting Unit Default Value Function2 D2 delay time Data 1 (2byte) Delay time: 1/fs unit 0x0000 Set range (0x0000~0x002D) Front R1 out delay time Data 2 (2byte) Delay time: 1/fs unit 0x0000 Set range (0x0000~0x031A) Rear R2 out delay time Data 3 (2byte) Delay time: 1/fs unit 0x0000...

  • Page 22: Measurement Results

    [AKD7600-A] MEASUREMENT RESULTS [Measurement condition] • Measuring instrument: Audio Precision System Two Cascade • MCLK : 256fs • BICK : 64fs • fs : 44.1 kHz • Bit : 24bit • Power Supply (REG): AVDD = 5.0V, DVDD = 5.0V, DVDD (5V-C) = 5.0V •...
  • Page 23 [AKD7600-A] [ADC Plots] ADC THD+N vs. Input Level 04/30/08 13:12:37 -100 -110 -120 -140 -120 -100 Figure 16 THD+N vs. Input Level (fin=1 kHz) ADC THD+N vs. Input Frequency 04/30/08 13:15:10 -100 -110 -120 Figure 17 THD+N vs. Input Frequency (Input level=-1dBFS) <...
  • Page 24 [AKD7600-A] ADC Linearity 04/30/08 13:26:49 -100 -110 -120 -140 -120 -100 Figure 18 Linearity ADC Frequency Responsel (input level = -1dB) 02/26/08 12:05:02 dx=-3.7875 kHz dy=+3.081 dB -0.5 -1.016 -1.5 -2.5 -3.5 -4.097 -4.5 -5.5 -6.5 -7.5 -8.5 -9.5 17.3375k 21.125k 5.2k 5.5k...
  • Page 25 [AKD7600-A] ADC Crosstalk 02/15/08 19:26:37 -100 -105 -110 -115 -120 -125 -130 -135 -140 -145 -150 Figure 20 Crosstalk ADC FFT (input level = -1dB) 02/15/08 19:21:55 -100 -110 -120 -130 -140 -150 -160 Figure 21 FFT Plot (fin=1 kHz, Input level =-1dBFS) <...
  • Page 26 [AKD7600-A] ADC FFT (input level = -60dB) 02/15/08 19:22:39 -100 -110 -120 -130 -140 -150 -160 Figure 22 FFT Plot (fin=1 kHz, Input level =-60dBFS) ADC FFT (no signal) 02/15/08 19:23:25 -100 -110 -120 -130 -140 -150 -160 Figure 23 FFT Plot (No signal input) <...
  • Page 27 [AKD7600-A] [DAC Plots] DAC THD+N vs. Input Level (input level = 0dB) 02/15/08 18:41:20 -100 -110 -120 -140 -120 -100 dBFS Figure 24 THD+N vs. Input Level (fin=1 kHz) DAC THD+N vs. Input Frequency (input level = 0dB) 02/15/08 18:54:47 -100 -110 -120...
  • Page 28 [AKD7600-A] DAC Linearity (input level = 0dB) 02/15/08 18:56:53 -100 -110 -120 -140 -120 -100 dBFS Figure 26 Linearity DAC Frequncy Response 02/29/08 19:09:28 dx=0.00000 Hz dy=+0.000 dB +1.75 +1.5 +1.25 +0.75 +0.5 +0.25 -0.25 -0.299 -0.299 -0.5 -0.75 -1.25 -1.5 -1.75 -2.25...
  • Page 29 [AKD7600-A] DAC2 L/R Crosstalk 02/15/08 18:21:46 T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T -100 -110 -120 -130 -140 Figure 28 Crosstalk...
  • Page 30 [AKD7600-A] DAC FFT (input level = -60dB) 02/15/08 19:16:23 -100 -110 -120 -130 -140 -150 -160 Figure 30 FFT Plot (fin=1 kHz, Input level =-60dBFS) DAC FFT (no signal) 02/15/08 19:17:05 -100 -110 -120 -130 -140 -150 -160 Figure 31 FFT Plot (No signal input) <...

  • Page 31: Important Notice

    [AKD7600-A] Revision History Date Manual Board Reason Page Contents (yy/mm/dd) Revision Revision 08/04/30 KM091700 First Edition IMPORTANT NOTICE These products and their specifications are subject to change without notice. When you consider any use or application of these products, please make inquiries the sales office of Asahi Kasei EMD Corporation (AKEMD) or authorized distributors as to current status of the products.
  • Page 32 POWER AIN-L AIN-L AIN-R AIN-R SDTO3 SDTO3 SDTO2 SDTO2 SDTO1 SDTO1 PC-SCLK PC-SCLK PC-SI PC-SI EXT-MCLK EXT-MCLK EXT-LRCK EXT-LRCK EXT-BICK EXT-BICK AOUT-L1 AOUT-L1 AOUT-R1 AOUT-R1 AOUT-L2 AOUT-L2 AOUT-R2 AOUT-R2 PC-CS3N PC-CS3N AOUT-L3 AOUT-L3 PC-CS4N PC-CS4N AOUT-R3 AOUT-R3 AOUT TX-CLK TX-CLK PC I/F AK4114 AK7600...
  • Page 33 要シルク AMP-PW- AIN-L 10uF 10uF 0.1uF 0.1uF SHORTEST WIRING 68pF 68pF RCA1 RCA1 AIN-L 22uF(A) 22uF(A) 10uF(A) 10uF(A) MR-552LS(WHITE) MR-552LS(WHITE) NJM5532D NJM5532D 10uF 10uF 0.1uF 0.1uF AMP-PW+ 要シルク AIN-R AMP-PW- SHORTEST WIRING R3 10k R3 10k C8 68pF C8 68pF RCA2 RCA2 AIN-R...
  • Page 34 AOUT-L1 AOUT-R1 AMP-PW- AREA:SHORTEST WIRING AMP-PW- 要シルク 要シルク 10uF 10uF 0.1uF 0.1uF 220pF(F) 220pF(F) 220pF(F) 220pF(F) RCA4 RCA4 RCA3 RCA3 AOUT-L1 AOUT-R1 NJM5532D NJM5532D NJM5532D NJM5532D 22uF(A) 22uF(A) 22uF(A) 22uF(A) 4.7k 4.7k 4.7k 4.7k 22uF(A) 22uF(A) 4.7k 4.7k 4.7k 4.7k 22uF(A) 22uF(A) MR-552LS(WHITE)
  • Page 35 DVDD(3.3V) DVDD(5V) DVDD(5V) DVDD(3.3V) 10uF 10uF 74HC14 74HC14 DZF1 DZF1 Zero detect pin 0.1uF 0.1uF 10uH 10uH 要シルク PORT1 PORT1 1.VCC 0.1uF 0.1uF 2.GND DIF-RX 3.OUT TORX141 TORX141 SPDI/F Optical IN PC-CS4N 0.1uF 0.1uF 10uF 10uF INT0 PC-CS3N CCLK PC-SCLK TX-CLK PC-SI TEST2...
  • Page 36 要シルク DVSS TP(BLACK) TP(BLACK) 要シルク XTL : 1-2 15pF 15pF EXT : 2-3 11.2896MHz 11.2896MHz default : 1-2short XTAL2 XTAL2 0.1uF 0.1uF 0.1uF 0.1uF EXT-MCLK 2.2uF 2.2uF 10uF 10uF 15pF 15pF TP(BLUE) TP(BLUE) TSTI TSTI VSS2 REF18 VSS4 VCOM SDTO3 SDTO3 AIN-L SDTO2...
  • Page 37 USB-DVDD 0.1uF 0.1uF 0.1uF 0.1uF 10uF 10uF 100k 100k 0.1uF 0.1uF DVDD(5V) 要シルク Silk Print JP16 JP16 1.VDD 2.MICLR_L MCLR-L APE 1F APE 1F RB7/KBI3/PGD 3.PGF RB6/KBI2/PGC USB-RST 4.PCG MCLR_N/Vpp/RE3 RB5/KBI1/PGM 5.GND RB4/AN11/KB10/CSSPP 要シルク ICSP ICSP RB3/AN9/CPP2/VPO DVDD_5V : 1-2 NC/ICCK/ICPGC RB2/AN8/INT2/VMO USB_DVDD : 2-3...
  • Page 38 要シルク OPEN : +5V SHORT:REG 要シルク AMP-PW+ 要シルク JP18 JP18 REG 5V(Chip/AVDD) 要シルク CHIP-GND DVDD(5V-C) AVDD 要シルク T45_OR T45_OR REG1 REG1 TP(BLACK) TP(BLACK) (+12V) 10uH 10uH (SHORT) (SHORT) C104 C104 47uF 47uF TJ-563(RED) TJ-563(RED) 10uF 10uF 0.1uF 0.1uF 10uF 10uF 0.1uF 0.1uF 0.1uF...
  • Page 39 要シルク DVSS 要シルク XTL : 1-2 TP(BLACK) TP(BLACK) EXT : 2-3 default : 1-2short 15pF 15pF 11.2896MHz 11.2896MHz XTAL1 XTAL1 0.1uF 0.1uF 0.1uF 0.1uF EXT-MCLK 2.2uF 2.2uF 10uF 10uF 15pF 15pF TP(BLUE) TP(BLUE) TSTI TSTI VSS2 REF18 VSS4 SDTO3 VCOM SDTO3 AIN-L AINL...