AK4358_06 AKM [Asahi Kasei Microsystems], AK4358_06 Datasheet

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AK4358_06

Manufacturer Part Number
AK4358_06
Description
192kHz 24-Bit 8ch DAC with DSD Input
Manufacturer
AKM [Asahi Kasei Microsystems]
Datasheet
ASAHI KASEI
The AK4358 is eight channels 24bit DAC corresponding to digital audio system. Using AKM's advanced
multi bit architecture for its modulator the AK4358 delivers a wide dynamic range while preserving
linearity for improved THD+N performance. The AK4358 has full differential SCF outputs, removing the
need for AC coupling capacitors and increasing performance for systems with excessive clock jitter. The
AK4358 accepts 192kHz PCM data and 1-Bit DSD data, ideal for a wide range of applications including
DVD-Audio and SACD.
MS0203-E-01
Sampling Rate Ranging from 8kHz to 192kHz
24Bit 8 times Digital Filter with Slow roll-off option
THD+N:
DR, S/N:
High Tolerance to Clock Jitter
Low Distortion Differential Output
DSD Data input available
Digital De-emphasis for 32, 44.1 & 48kHz sampling
Zero Detect function
Channel Independent Digital Attenuator with soft-transition (3 Speed mode)
Soft Mute
3-wire Serial and I
I/F format: MSB justified, LSB justified (16bit, 20bit, 24bit), I
Master clock:
Power Supply: 4.75 to 5.25V
48pin LQFP Package
LOUT4+
LOUT4-
ROUT4+
ROUT4-
DZF
LOUT1+
LOUT1-
ROUT1+
ROUT1-
LOUT2+
LOUT2-
ROUT2+
ROUT2-
LOUT3+
LOUT3-
ROUT3+
ROUT3-
-94dB
SCF
SCF
SCF
SCF
SCF
SCF
SCF
SCF
112dB
128fs, 192fs, 256fs or 384fs (PCM Double Speed Mode)
128fs or 192fs (PCM Quad Speed Mode)
256fs, 384fs, 512fs or 768fs (PCM Normal Speed Mode)
512fs or 768fs (DSD Mode)
GENERAL DESCRIPTION
192kHz 24-Bit 8ch DAC with DSD Input
2
C Bus µP I/F for mode setting
DAC
DAC
DAC
DAC
DAC
DAC
DAC
DAC
AK4358
FEATURES
DATT
DATT
DATT
DATT
DATT
DATT
DATT
DATT
- 1 -
Audio
PCM
DSD
I/F
Register
Control
MCLK
LRCK
BICK
SDTI1
SDTI2
SDTI3
SDTI4
3-wire
or I2C
DCLK
DSDL1
DSDR1
DSDL2
DSDR2
DSDL3
DSDR3
DSDL4
DSDR4
2
S, TDM or DSD
AK4358
[AK4358]
2006/02

Related parts for AK4358_06

AK4358_06 Summary of contents

Page 1

ASAHI KASEI The AK4358 is eight channels 24bit DAC corresponding to digital audio system. Using AKM's advanced multi bit architecture for its modulator the AK4358 delivers a wide dynamic range while preserving linearity for improved THD+N performance. The AK4358 has ...

Page 2

ASAHI KASEI Ordering Guide -40 ∼ +85 ° C AK4358VQ AKD4358 Evaluation Board for AK4358 Pin Layout LOUT1- 1 LOUT1+ 2 DZF3 3 DZF2 4 DZF1 5 CAD0 6 ACKSN 7 PDN 8 BICK 9 MCLK 10 11 DVDD DVSS ...

Page 3

ASAHI KASEI Compatibility with AK4357 1. Function & Performance Functions # of channels DR 48kHz/96kHz TDM I2C DSDM control Input channel of DZF pin 2. Pin Configuration Pin # AK4357 3 DZFL1 4 DZFR1 5 DZF23 7 CAD1 12 NC ...

Page 4

ASAHI KASEI No. Pin Name I/O 1 LOUT1 LOUT1 DZF3 O 4 DZF2 O 5 DZF1 O 6 CAD0 I 7 ACKSN I 8 PDN I 9 BICK I 10 MCLK I 11 DVDD - 12 ...

Page 5

ASAHI KASEI 45 LOUT2 LOUT2 ROUT1 ROUT1+ O Note: All input pins except pull-down pin should not be left floating. (AVSS, DVSS=0V; Note 1) Parameter Power Supplies Analog Digital |AVSS-DVSS| Input Current (any pins ...

Page 6

ASAHI KASEI (Ta=25 ° C; AVDD, DVDD=5V; VREFH=AVDD; fs=44.1kHz; BICK=64fs; Signal Frequency=1kHz; 24bit Input Data; Measurement frequency=20Hz ∼ 20kHz; R Parameter Resolution Dynamic Characteristics THD+N fs=44.1kHz BW=20kHz fs=96kHz BW=40kHz fs=192kHz BW=40kHz Dynamic Range (-60dBFS with A-weighted) S/N (A-weighted) Interchannel Isolation ...

Page 7

ASAHI KASEI SHARP ROLL-OFF FILTER CHARACTERISTICS ( ° C; AVDD, DVDD = 4.75 ∼ 5.25V 44.1kHz; DEM = OFF; SLOW = “0”; PCM Mode) Parameter Digital filter ± 0.05dB (Note 12) Passband -6.0dB Stopband (Note 12) ...

Page 8

ASAHI KASEI ( ° C; AVDD, DVDD = 4.75 ∼ 5.25V; C Parameter Master Clock Frequency Duty Cycle LRCK Frequency Normal Mode (TDM0= “L”, TDM1= “L”) Normal Speed Mode Double Speed Mode Quad Speed Mode Duty Cycle TDM256 ...

Page 9

ASAHI KASEI Parameter Reset Timing PDN Pulse Width Note 16. BICK rising edge must not occur at the same time as LRCK edge. Note 17. DSD data transmitting device must meet this time. Note 18. Data must be held for ...

Page 10

ASAHI KASEI Timing Diagram MCLK tCLKH LRCK BICK tBCKH LRCK tBLR BICK SDTI Audio Serial Interface Timing (PCM Mode) MS0203-E-01 1/fCLK tCLKL dCLK=tCLKH x fCLK, tCLKL x fCLK 1/fs tBCK tBCKL Clock Timing tLRB tSDS tSDH - 10 - [AK4358] ...

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ASAHI KASEI DCLK tDDD DSDL DSDR Audio Serial Interface Timing (DSD Normal Mode, DCKB = “0”) DCLK tDDD DSDL DSDR Audio Serial Interface Timing (DSD Phase Modulation Mode, DCKB = “0”) CSN tCSS CCLK CDTI C1 MS0203-E-01 tDCK tDCKL tDCKH ...

Page 12

ASAHI KASEI CSN CCLK CDTI D3 SDA tLOW tR tBUF SCL tHD:STA tHD:DAT Stop Start PDN MS0203-E- WRITE Data Input Timing tHIGH tF tSU:DAT tSU:STA Start Bus mode Timing tPD Power-down Timing - 12 ...

Page 13

ASAHI KASEI D/A Conversion Mode The AK4358 can perform D/A conversion for both PCM data and DSD data. When DSD mode, DSD data can be input from DCLK, DSDL1-4 and DSDR1-4 pins. When PCM mode, PCM data can be input ...

Page 14

ASAHI KASEI LRCK fs 128fs 88.2kHz 11.2896MHz 96.0kHz 12.2880MHz Table 4. System Clock Example (Double Speed Mode @Manual Setting Mode) LRCK fs 176.4kHz 192.0kHz Table 5. System Clock Example (Quad Speed Mode @Manual Setting Mode) Table 6. Sampling Speed (Auto ...

Page 15

ASAHI KASEI Audio Serial Interface Format 1) PCM Mode When PCM mode, data is shifted in via the SDTI1-4 pins using BICK and LRCK inputs. The DIF0-2 as shown in Table 10 can select five serial data modes. Initial value ...

Page 16

ASAHI KASEI LRCK BICK (64fs) SDTI Don’t care Mode 1 19:MSB, 0:LSB SDTI Don’t care Mode 4 23:MSB, 0:LSB Lch Data LRCK BICK (64fs) SDTI 23:MSB, ...

Page 17

ASAHI KASEI Mode TDM1 TDM0 DIF2 Table 11. Audio Data Formats (TDM256 mode) 3/256fs (min) LRCK BICK(256fs) SDTI1( ...

Page 18

ASAHI KASEI Mode TDM1 TDM0 DIF2 Table 12. Audio Data Formats (TDM128 mode) 3/128fs (min) LRCK BICK(128fs) SDTI1( ...

Page 19

ASAHI KASEI 2) DSD Mode In case of DSD mode, DIF0-2 is ignored. The frequency of DCLK is fixed to 64fs. DCKB bit can invert the polarity of DCLK. DCLK (64fs) DCKB=1 DCLK (64fs) DCKB=0 DSDL,DSDR D0 Normal DSDL,DSDR D0 ...

Page 20

ASAHI KASEI De-emphasis Filter A digital de-emphasis filter is available for 32, 44.1 or 48kHz sampling rates (tc = 50/15µs) and is enabled or disabled with DEM0 and DEM1. In case of double speed and quad speed mode, the digital ...

Page 21

ASAHI KASEI Zero Detection When the input data at all channels are continuously zeros for 8192 LRCK cycles, the AK4358 has Zero Detection like Table 16. DZF pin immediately goes to “L” if input data of each channel is not ...

Page 22

ASAHI KASEI System Reset The AK4358 should be reset once by bringing PDN= ”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 ...

Page 23

ASAHI KASEI Reset Function When RSTN=0, DAC is powered down but the internal register values are not initialized. The analog outputs go to VCOM voltage and DZFL/DZFR pins go to “H”. Figure 16 shows the example of reset by RSTN ...

Page 24

ASAHI KASEI Register Control Interface The AK4358 controls its functions via registers. 2 types of control mode write internal registers. In the I chip address is determined by the state of the CAD0 and CAD1 inputs. In 3-wire mode, the ...

Page 25

ASAHI KASEI 2 (2) I C-bus Control Mode (I2C= “H”) The AK4358 supports the standard-mode C-bus system (max: 400kHz). Figure 18 shows the data transfer sequence at the I HIGH to LOW transition on the SDA line ...

Page 26

ASAHI KASEI SDA SCL S start condition DATA OUTPUT BY MASTER DATA OUTPUT BY SLAVE(AK4529) SCL FROM MASTER S START CONDITION SDA SCL MS0203-E-01 Figure 22. START and STOP conditions Figure 23. Acknowledge on the I C-bus ...

Page 27

ASAHI KASEI Register Map Addr Register Name 00H Control 1 01H Control 2 02H Speed & Power Down Control 03H De-emphasis Control 04H LOUT1 ATT Control 05H ROUT1 ATT Control 06H LOUT2 ATT Control 07H ROUT2 ATT Control 08H LOUT3 ...

Page 28

ASAHI KASEI Register Definitions Addr Register Name 00H Control 1 Default RSTN: Internal timing reset 0: Reset. All DZF pins go to “H” and any registers are not initialized. 1: Normal operation When MCLK frequency or DFS changes, the AK4358 ...

Page 29

ASAHI KASEI Addr Register Name Speed & Power Down 02H Control Default RSTN: Internal timing reset 0: Reset. All DZF pins go to “H” and any registers are not initialized. 1: Normal operation When MCLK frequency or DFS changes, the ...

Page 30

ASAHI KASEI Addr Register Name 0AH Control 3 Default ATS1-0: DATT Speed Setting (See Table 15) Initial: “00”, mode 0 DZFB: Inverting Enable of DZF 0: DZF goes “H” at Zero Detection 1: DZF goes “L” at Zero Detection DCKB: ...

Page 31

ASAHI KASEI Figure 25 shows the system connection diagram. An evaluation board (AKD4358) is available which demonstrates application circuits, the optimum layout, power supply arrangements and measurement results. + 10u 0.1u Reset Clock Gen 13 SDTI4 14 SDTI1 DSP 15 ...

Page 32

ASAHI KASEI Digital Ground System Controller AVSS and DVSS must be connected to the same analog ground plane. 1. Grounding and Power Supply Decoupling AVDD and DVDD are usually supplied from analog supply in system and should be separated from ...

Page 33

ASAHI KASEI 4. External Analog Filter It is recommended by SACD format book (Scarlet Book) that the filter response at SACD playback is an analog low pass filter with a cut-off frequency of maximum 50kHz and a slop of minimum ...

Page 34

ASAHI KASEI 48pin LQFP(Unit:mm) 9.0 ± 0.2 7 0.22 ± 0.08 0.5 0.10 Package & Lead frame material Package molding compound: Lead frame material: Lead frame surface treatment: MS0203-E-01 PACKAGE 1.70Max 25 1.40 ± 0.05 24 ...

Page 35

ASAHI KASEI Date (YY/MM/DD) Revision Reason 02/02/10 00 First Edition 06/02/23 01 Spec Change MS0203-E-01 MARKING AKM AK4358VQ XXXXXXX 1 1) Asahi Kasei Logo 2) Marking Code: AK4358VQ 3) Date Code: XXXXXXX(7 digits) 4) Pin #1 indication Revision History Page ...

Page 36

ASAHI KASEI • 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 off ice or authorized distributor concerning their current status. • AKM ...

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