ak4395 AKM Semiconductor, Inc., ak4395 Datasheet
ak4395
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ak4395 Summary of contents
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... ASAHI KASEI The AK4395 is a high performance stereo DAC for the 192kHz sampling mode of DVD-Audio including a 24bit digital filter. The digital filter has high stopband attenuation with 110dB or more that reduces wide band aliasing noise. The AK4395 introduces the advanced multi-bit system for architecture achieves the wider dynamic range, while keeping much the same superior distortion characteristics as conventional Single-Bit way ...
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... AK4395 AK4394 216kHz 216kHz 4.75~5.25V 4.75~5.25V 110dB 75dB 256 levels, 0.5dB N/A CAD0/CAD1 N/A 32k,44.1k,48k 32k,44.1k,48k,96k 32k,44.1k,48k,96k Slow Roll-off Slow Roll-off DZFL/DZFR DZFL/DZFR - 2 - [AK4395] ACKS/DZFR CKS1/CAD1 CKS0/DZFL P/S VCOM + AOUTL AOUTL- AOUTR+ AOUTR- AVSS AVDD VREFH VREFL BVSS AK4393 108kHz 3~5.25V ...
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... Digital Power Supply Pin, 5.0V Master Clock Input Pin Power-Down Mode Pin When at “L”, the AK4395 is in power-down mode and is held in reset. The AK4395 should always be reset upon power-up. Audio Serial Data Clock Pin The clock of 64fs or more than is recommended to be input on this pin. ...
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... AKM assumes no responsibility for the usage beyond the conditions in this data sheet. MS0040-E-01 ABSOLUTE MAXIMUM RATINGS Symbol min AVDD -0.3 DVDD -0.3 (Note 2) - GND IIN - VIND -0.3 Ta -10 Tstg -65 Symbol min AVDD 4.75 DVDD 4.75 VREFH AVDD-0.5 VREFL AVSS 3.0 VREF - 4 - [AK4395] max Units 6.0 V 6 DVDD+0 150 C typ max Units 5.0 5.25 V 5.0 5. AVDD ...
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... PSR is applied to AVDD, DVDD with 1kHz, 100mVpp. VREFH pin is held +5V. MS0040-E-01 ANALOG CHARACTERISTICS min 0dBFS -60dBFS 0dBFS -60dBFS 0dBFS -60dBFS (Note 6) 112 (Note 7) - (Note 8) 112 (Note 7) - 100 (Note 9) (Note 10) 2.25 (Note 11) 600 (Note 12) (Note 13 [AK4395] typ max Units 24 Bits -100 - -97 - 117 dB 120 ...
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... 22. 110 GD - 43.5 - 0.1 Symbol min typ 48 110 GD - 43.5 - 0.2 symbol min typ 96.0 SB 105 PR SA 110 GD - 43.5 - +0/-0 [AK4395] max Units 20.0 kHz - kHz kHz 0.0002 1/ max Units 43.5 kHz - kHz kHz 0.0002 1/ max Units 87.0 kHz - kHz kHz 0.0002 1/ 2001/4 ...
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... 18 43.5 - +0/-5 Symbol min typ 39 43.5 - +0/-4 Symbol min typ 79.1 SB 171 43.5 - +0/- [AK4395] max Units 8.1 kHz - kHz kHz 0.005 1/ max Units 17.7 kHz - kHz kHz 0.005 1/ max Units 35.5 kHz - kHz kHz 0.005 1/ 2001/4 ...
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... Reset Timing PDN Pulse Width Notes: 18. When the normal/double/quad speed modes are switched, AK4395 should be reset by PDN pin or RSTN bit. 19. BICK rising edge must not occur at the same time as LRCK edge. 20. The AK4395 can be reset by bringing PDN “L” to “H”. ...
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... Timing Diagram MCLK tCLKH LRCK BICK tBCKH LRCK tBLR BICK SDATA MS0040-E-01 1/fCLK tCLKL dCLK=tCLKH x fCLK, tCLKL x fCLK 1/fs tBCK tBCKL Clock Timing tLRB tSDS tSDH Audio Interface Timing - 9 - [AK4395] VIH VIL VIH VIL VIH VIL VIH VIL VIH VIL VIH VIL 2001/4 ...
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... CCLK CDTI C1 CSN CCLK CDTI D3 PDN MS0040-E-01 tCCKL tCCKH tCDS tCDH C0 R/W WRITE Command Input Timing WRITE Data Input Timing tPD Power-down Timing - 10 - [AK4395] VIH VIL VIH VIL VIH A4 VIL tCSW VIH VIL tCSH VIH VIL VIH VIL VIL 2001/4 ...
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... If the external clocks are not present, the AK4395 should be in the power-down mode (PDN = “L” the reset mode (RSTN = “0”). After exiting reset at power-up etc., the AK4395 is in power-down mode until MCLK and LRCK are input. ...
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... DIF0 Mode 0 0: 16bit LSB Justified 1 1: 20bit LSB Justified 0 2: 24bit MSB Justified Compatible 0 4: 24bit LSB Justified Table 8. Audio Data Formats - 12 - [AK4395] BICK 384fs 64fs 5.6448MHz 6.1440MHz BICK 64fs Sampling Speed 768fs 24.5760 33.8688 Normal 36.8640 - Double ...
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... Don’t care Don’t care 23 Figure 2. Mode 1,4 Timing Don’t care 23 22 Figure 3. Mode 2 Timing - 13 - [AK4395 Rch Data ...
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... Table 9. De-emphasis filter control (Normal Speed Mode) Output Volume The AK4395 includes channel independent digital output volumes (ATT) with 256 levels at 0.5dB steps including MUTE. These volumes are in front of the DAC and can attenuate the input data from 0dB to –127dB and mute. When changing levels, transitions are executed via soft changes ...
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... ASAHI KASEI Zero detection The AK4395 has channel-independent zeros detect function. When the input data at each channel is continuously zeros for 8192 LRCK cycles, DZF pin of each channel goes to “H”. DZF pin of each channel immediately goes to “L” if input data of each channel is not zero after going DZF “H”. If RSTN bit is “0”, DZF pins of both channels go to “H”. DZF pins of both channels go to “ ...
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... The AK4395 should be reset once by bringing PDN = “L” upon power-up. The AK4395 is powered up and the internal timing starts clocking by LRCK “ ” after exiting reset and power down state by MCLK. The AK4395 is in the power-down mode until MCLK and LRCK are input. ...
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... ASAHI KASEI Reset Function When RSTN = ”0”, the AK4395’s digital section is powered down but the internal register values are not initialized. The analog outputs go to VCOM voltage and DZF pins of both channels go to “H”. Figure 7 shows the example of reset by RSTN bit ...
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... CAD0/1), Read/Write (1bit; fixed to “1”), Register address (MSB first, 5bits) and Control data (MSB first, 8bits). The AK4395 latches the data on the rising edge of CCLK, so data should be clocked in on the falling edge. The writing of data becomes valid by CSN “ ”. The clock speed of CCLK is 5MHz (max). The CSN and CCLK must be fixed to “H” when the register does not be accessed ...
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... RSTN: Internal timing reset 0: Reset. All registers are not initialized. 1: Normal Operation When the states of CKS2-0 or DFS1-0 change, the AK4395 should be reset by PDN pin or RSTN bit. DIF2-0: Audio data interface modes (see Table 8) Initial: “000”, Mode 0 Register bits are ORed with DIF2-0 pins if P/S = “L”. ...
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... RSTN = “0”. When RSTN return to “1”, the ATTs fade to their current value. This digital attenuator is independent of soft mute function. MS0040-E- GA0 ATT6 ATT5 ATT4 ATT6 ATT5 ATT4 [AK4395 DZFB ATT3 ATT2 ATT1 ATT0 ATT3 ATT2 ATT1 ATT0 1 1 ...
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... LRCK AOUTL- 22 CSN 8 AOUTR CAD0 AOUTR CCLK AVSS 19 0.1u 11 CDTI AVDD 18 12 DIF0 VREFH 17 0.1u 13 VREFL 16 DIF1 DIF2 14 BVSS [AK4395] 10u 0.1u + Lch Lch Lch Out LPF Mute Rch Rch Rch Out LPF Mute 10u + Analog Supply 5V + 10u 2001/4 ...
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... Rch Out LPF 0.1u 10u + Analog Supply 5V + 0.1u 10u DZFR 1 DVSS 28 2 DVDD CAD1 27 MCLK 3 DZFL 26 4 PDN P BICK VCOM 24 AK4395 6 SDATA AOUTL LRCK AOUTL AOUTR+ 21 SMUTE AOUTR- 9 CAD0 20 10 DEM0 AVSS 19 11 DEM1 AVDD 18 12 DIF0 VREFH 17 13 VREFL ...
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... VCOM pin eliminates the effects of high frequency noise. No load current may be drawn from VCOM pin. All signals, especially clocks, should be kept away from the VREFH, VREFL and VCOM pins in order to avoid unwanted coupling into the AK4395. 3. Analog Outputs The analog outputs are full differential outputs and 2.4Vpp (typ@VREF=5V) centered around VCOM. The differential outputs are summed externally (AOUT+) - (AOUT-) between AOUT+ and AOUT- ...
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... AOUTL 300 6.8n 4 NJM5534D 200 6.8n 47u AOUTL 300 300 4 6.8n NJM5534D 200 MS0040-E-01 + 10u 0.1u 10u + 0. 10u 0.1u 10u + 0.1u Figure 13. External LPF Circuit Example [AK4395] +15 -15 10u 0.1u + 470 2.2n 100 620 Lch + 3 7 620 2.2n NJM5534D + 0.1u 10u 2001/4 ...
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... ASAHI KASEI 28pin VSOP (Unit: mm) *9.8 0.2 0.675 28 1 0.22 0.1 Seating Plane NOTE: Dimension "*" does not include mold flash. Material & Lead finish Package molding compound: Lead frame material: Lead frame surface treatment: MS0040-E-01 PACKAGE 15 14 0.65 Detail A 0.10 Epoxy Cu Solder plate - 25 - [AK4395] 1.25 0.2 A +0.1 0.15-0.05 0.1 0.1 0-10 2001/4 ...
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... AKM harmless from any and all claims arising from the use of said product in the absence of such notification. MS0040-E-01 MARKING AKM AK4395VF XXXBYYYYC IMPORTANT NOTICE - 26 - [AK4395] 2001/4 ...