ak4390 ETC-unknow, ak4390 Datasheet

no-image

ak4390

Manufacturer Part Number
ak4390
Description
Ultra Low Latency 32-bit ?? Dac
Manufacturer
ETC-unknow
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ak4390EF
Manufacturer:
AKM
Quantity:
20 000
The AK4390 is a high performance stereo DAC capable of sampling up to 216kHz including a 32-bit digital
filter. The modulator uses AKM's multi-bit architecture, delivering wide dynamic range while preserving
linearity for improved THD+N performance. The AK4390 has fully differential switched-cap filter outputs,
removing the need for AC coupling capacitors and increasing performance for systems with excessive
clock jitter. The AK4390 accepts 192kHz PCM data, ideal for a wide range of applications including
DVD-Audio, high end sound cards, digital audio Firewire and USB interface boxes, and digital mixers.
MS1046-E-00
• 128-times Oversampling
• Sampling Rate: 30kHz ∼ 216kHz
• 32Bit 8x Digital Filter
• Low Distortion Differential Output
• Digital De-emphasis for 32, 44.1, 48kHz sampling
• Soft Mute
• Digital Attenuator (255 levels and 0.5dB step)
• THD+N: −103dB
• DR, S/N: 120dB
• Audio Format: 24/32bit MSB justified, 16/20/24/32bit LSB justified, I
• Master Clock:
• TTL Level Digital I/F
• Package: 30pin VSOP
• High Tolerance to Clock Jitter
• Power Supply: 5V ± 5%
Ripple: ±0.005dB, Attenuation: 100dB
Low latency option: 7/fs
30kHz ~ 32kHz: 1152fs
30kHz ~ 54kHz: 512fs or 768fs
30kHz ~ 108kHz: 256fs or 384fs
108kHz ~ 216kHz: 128fs or 192fs
GENERAL DESCRIPTION
FEATURES
Ultra Low Latency 32-Bit ΔΣ DAC
- 1 -
AK4390
[AK4390]
2009/01
2
S

Related parts for ak4390

ak4390 Summary of contents

Page 1

... The AK4390 is a high performance stereo DAC capable of sampling up to 216kHz including a 32-bit digital filter. The modulator uses AKM's multi-bit architecture, delivering wide dynamic range while preserving linearity for improved THD+N performance. The AK4390 has fully differential switched-cap filter outputs, removing the need for AC coupling capacitors and increasing performance for systems with excessive clock jitter ...

Page 2

... MCLK Divider CSN/SMUTE CCLK/DEM0 CDTI/DEM1 CAD0 CAD1/DIF0 MS1046-E-00 VSS3 PDN 8X Interpolator DATT Soft Mute Control Register PSN DZFL/DIF1 DIF2 Block Diagram - 2 - [AK4390] VSS4 AVDD VSS2 VDDL AOUTLP SCF AOUTLN VREFHL ΔΣ VREFLL Vref Modulator VREFLR VREFLL AOUTRP SCF AOUTRN VDDR ...

Page 3

... Ordering Guide −10 ∼ +70°C AK4390EF AKD4390 Evaluation Board for AK4390 ■ Pin Layout SMUTE/CSN TST1/CAD0 DEM0/CCLK DEM1/CDTI DIF0/CAD1 DIF1/DZFL DIF2 PSN TST2/DZFR AOUTRP AOUTRN VSS1 VDDR VREFHR VREFLR MS1046-E-00 30pin VSOP (0.65mm pitch AK4390 Top 7 View ...

Page 4

... Master Clock Input Connected to VSS1/2/3 Ground Digital Power Supply, 4.75 ∼ 5.25V Power-Down Mode When at “L”, the AK4390 is in power-down mode and is held in reset. The AK4390 should always be reset upon power-up. Audio Serial Data Clock in PCM Mode Audio Serial Data Input in PCM Mode ...

Page 5

... Serial Control Mode Classification Pin Name AOUTLP, AOUTLN Analog AOUTRP, AOUTRN DIF2 Digital DZFL, DZFR MS1046-E-00 Pin Name Setting Leave open. AOUTLP, AOUTLN AOUTRP, AOUTRN Leave open. SMUTE Connect to VSS4. Setting Leave open. Leave open. Connect to VSS4. Leave open [AK4390] 2009/01 ...

Page 6

... IIN VIND Ta Tstg Note 1) Symbol min AVDD 4.75 VDDL/R 4.75 DVDD 4.75 VREFHL/R AVDD-0.5 VREFLL/R VSS3 Δ VREF 3 min max −0.3 6.0 −0.3 6.0 −0.3 6.0 ±10 - −0.3 DVDD+0.3 −10 70 −65 150 typ max 5.0 5.25 5.0 5.25 5.0 5.25 - AVDD - - - AVDD [AK4390] Units °C °C Units 2009/01 ...

Page 7

... Figure min 5) 0dBFS −60dBFS 0dBFS −60dBFS 0dBFS −60dBFS −60dBFS (Note 6) 114 (Note 7) 114 110 (Note 8) ±2.65 (Note 9) (Note 10) 1 (Note 11 [AK4390] 15; unless otherwise specified.) typ max Units 24 Bits −103 93 −57 - −100 - −54 - −100 - −54 - −51 - 120 120 120 0.15 0 ppm/°C ± ...

Page 8

... PR SA 100 14 Symbol min 13 Symbol min 13) SB 105 14 [AK4390] typ max Units 20.0 kHz 22.05 - kHz kHz ±0.005 1/fs ±0 typ max Units 43.5 kHz 48.0 - kHz kHz ±0.005 1/fs ±0 typ max Units 87 ...

Page 9

... PR SA 100 14 Symbol min 13 Symbol min 13) SB 105 14 [AK4390] typ max Units 20.0 kHz 22.05 - kHz kHz ±0.005 1/fs ±0 typ max Units 43.5 kHz 48.0 - kHz kHz ±0.005 1/fs ±0 typ max Units 87 ...

Page 10

... Note 15. TST1/CAD0 and PSN pins have internal pull-up devices, nominally 100kΩ. Therefore, TST1/CAD0 and PSN pins are not included in this specification. MS1046-E-00 DC CHARACTERISTICS Symbol min VIH 2.4 VIL - VOH DVDD−0.5 VOL - (Note 15) Iin - - 10 - [AK4390] typ max Units - - 0.5 V ±10 μA - ...

Page 11

... CCLK “↑” to CSN “↑” Reset Timing PDN Pulse Width Note 16. When the frequency (1152fs, 512fs or 768fs /256fs or 384fs /128fs or 192fs) is switched, the AK4390 should be reset by the PDN pin or RSTN bit. Note 17. BICK rising edge must not occur at the same time as LRCK edge. ...

Page 12

... LRCK BICK tBCKH LRCK tBLR BICK SDATA MS1046-E-00 1/fCLK tCLKL dCLK=tCLKH x fCLK, tCLKL x fCLK 1/fs tBCK tBCKL Clock Timing tLRB tSDS tSDH Audio Interface Timing (PCM Mode [AK4390] VIH VIL VIH VIL VIH VIL VIH VIL VIH VIL VIH VIL 2009/01 ...

Page 13

... CCLK CDTI D3 PDN MS1046-E-00 tCCKL tCCKH tCDS tCDH C1 C0 R/W WRITE Command Input Timing D2 D1 WRITE Data Input Timing tPD Power Down & Reset Timing - 13 - [AK4390] VIH VIL VIH VIL VIH A4 VIL tCSW VIH VIL tCSH VIH VIL VIH D0 VIL VIL 2009/01 ...

Page 14

... RSTN bit. After exiting reset (PDN pin = “L” → “H”) at power-up etc., the AK4390 is in power-down mode until MCLK is supplied. The AK4390 is automatically placed in power saving mode when MCLK and LRCK stop during normal operation mode, and the analog output is AVDD/2 (typ) ...

Page 15

... Don’t care Don’t care Figure 2. Mode 1/4 Timing - 15 - [AK4390] Table 4. In all formats the serial data BICK Figure ≥ 32fs Figure 1 ≥ 48fs Figure 2 ≥ 48fs Figure 3 (default) ≥ 48fs Figure 4 ≥ 48fs Figure 2 ≥ ...

Page 16

... Figure 6. Mode 7 Timing - Don’t care Rch Data Don’t care Rch Data Rch Data Don’t care Rch Data [AK4390 2009/01 ...

Page 17

... Output Volume Control The AK4390 includes channel independent digital output volume control (ATT) with 256 levels at 0.5dB steps including MUTE. The volume control is in front of the DAC, and it can attenuate the input data from 0dB to –127dB and mute. When changing output levels, transitions are executed via soft changes; thus no switching noise occurs during these transitions ...

Page 18

... The DZF pin immediately returns to “L” if the input data are not zero after going “H”. ■ System Reset The AK4390 should be reset once by bringing the PDN pin = “L” upon power-up. The analog section exits power-down mode by MCLK input and then the digital section exits power-down mode after the internal counter counts MCLK during 4/fs. ...

Page 19

... Power ON/OFF timing The AK4390 is placed in the power-down mode by bringing the PDN pin “L” and the registers are initialized. the analog outputs are floating (Hi-Z). As some click noise occurs at the edge of the PDN pin signal, the analog output should be muted externally if the click noise influences system application. ...

Page 20

... RESET by RSTN bit = “0” When the RSTN bit = “0”, the AK4390’s digital section is powered down, but the internal register values are not initialized. The analog outputs settle to AVDD/2 (typ) and the DZF pins for both channels go to “H”. Figure 9 shows the example of reset by RSTN bit ...

Page 21

... The AK4390 is automatically placed in reset state when MCLK or LRCK is stopped during normal operation and the analog outputs are floating (Hi-Z). When MCLK and LRCK are input again, the AK4390 exits reset state and starts the operation. Zero detect function is disable when MCLK or LRCK is stopped. ...

Page 22

... When the state of the PSN pin is changed, the AK4390 should be reset by the PDN pin. The serial control interface is enabled by the PSN pin = “L”. In this mode, pin settings must be all “L”. Internal registers may be written to through3-wire µP interface pins: CSN, CCLK and CDTI. The data on this interface consists of Chip address (2-bits, CAD0/1), Read/Write (1-bit ...

Page 23

... MSB justified 00H Disable 01H Separated 01H Sharp roll-off filter 01H OFF 01H Normal Operation 01H PCM mode 02H 512fs 02H Stereo 02H “H” active 02H R channel 02H - 23 - [AK4390] Bit PCM DSD Ex DF I/F ATT7 EXDF Y - ESC - - DIF2 DZFE Y Y DZFM Y Y ...

Page 24

... When the PDN pin goes to “L”, the registers are initialized to their default values. When RSTN bit is set to “0”, only the internal timing is reset, and the registers are not initialized to their default values. When the state of the PSN pin is changed, the AK4390 should be reset by the PDN pin. ■ Register Definitions ...

Page 25

... Disable (default) 1: Enable The zero detect function can be disabled by DZFE bit “0”. In this case, the DZF pins of both channels are always “L”. MS1046-E- DZFE DZFM (Table DEM1 DEM0 [AK4390] D0 SMUTE 0 2009/01 ...

Page 26

... MS1046-E- ATT7 ATT6 ATT5 ATT4 ATT7 ATT6 ATT5 ATT4 DZFB ATT3 ATT2 ATT1 ATT3 ATT2 ATT1 [AK4390 ATT0 ATT0 1 2009/01 ...

Page 27

... VSS1 VSS2 VDDL 13 VDDR 14 VREFHR VREFHL 15 VREFLR VREFLL shows the analog output circuit examples. The Digital 5. 0.1u 10u 0.1u 10u 22 21 Lch Lch LPF Mute 20 19 0.1u 10u 0.1u 10u Analog 5.0V + Electrolytic Capacitor Ceramic Capacitor [AK4390] DSP Lch Out 2009/01 ...

Page 28

... AVDD, and the VREFLL/R pin is normally connected to VSS1/2/3. VREFHL/R and VREFLL/R should be connected with a 0.1µF ceramic capacitor. All signals, especially clocks, should be kept away from the VREFHL/R and VREFLL/R pins in order to avoid unwanted noise coupling into the AK4390. 3. Analog Outputs The analog outputs are fully differential outputs at 2.8Vpp (typ, VREFHL/R − ...

Page 29

... Stage 2 182kHz 284kHz 0.637 +3.9dB -0.88dB 20kHz -0.025 -0.021 40kHz -0.106 -0.085 80kHz -0.517 -0.331 - 29 - 1.5k 1n +Vop Analog Out -Vop 1n +15 -15 0.1u 560 1.0n 100 620 620 1.0n NJM5534D + 10u 0.1u Stage Total - - - +3.02dB -0.046dB -0.191dB -0.848dB [AK4390] 10u + Lch 2009/01 ...

Page 30

... VSOP (Unit: mm) *9.7 ± 0.1 0 0.22 ± 0.1 0.12 M NOTE: Dimension "*" does not include mold flash. ■ Material & Lead finish Package molding compound: Epoxy Lead frame material: Cu Lead frame surface treatment: Solder (Pb free) plate MS1046-E-00 PACKAGE 16 15 0.65 Detail A 0. [AK4390] 1.5MAX A +0.10 0.15 -0.05 2009/01 ...

Page 31

... Date (YY/MM/DD) Revision 09/01/09 00 MS1046-E-00 MARKING AK4390EF XXXXXXXXX XXXXXXXXX Date code identifier REVISION HISTORY Reason Page Contents First Edition - 31 - [AK4390] 2009/01 ...

Page 32

... AKEMD harmless from any and all claims arising from the use of said product in the absence of such notification. MS1046-E-00 IMPORTANT NOTICE , and AKEMD assumes no responsibility for such use, except for the use Note2 [AK4390] in any safety, life support, or Note1) 2009/01 ...

Related keywords