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PDF AK4358 Data sheet ( Hoja de datos )
| Número de pieza | AK4358 | |
| Descripción | 192kHz 24-Bit 8ch DAC | |
| Fabricantes | Asahi Kasei Microsystems | |
| Logotipo |  |
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[AK4358]
AK4358
192kHz 24-Bit 8ch DAC with DSD Input
GENERAL DESCRIPTION
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.
FEATURES
Sampling Rate Ranging from 8kHz to 192kHz
24Bit 8 times Digital Filter with Slow roll-off option
THD+N: -94dB
DR, S/N: 112dB
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 I2C Bus µP I/F for mode setting
I/F format: MSB justified, LSB justified (16bit, 20bit, 24bit), I2S, TDM or DSD
Master clock: 256fs, 384fs, 512fs or 768fs (PCM Normal Speed Mode)
128fs, 192fs, 256fs or 384fs (PCM Double Speed Mode)
128fs or 192fs (PCM Quad Speed Mode)
512fs or 768fs (DSD Mode)
Power Supply: 4.75 to 5.25V
48pin LQFP Package
DZF
LOUT1+
LOUT1-
ROUT1+
ROUT1-
LOUT2+
LOUT2-
ROUT2+
ROUT2-
LOUT3+
LOUT3-
ROUT3+
ROUT3-
LOUT4+
LOUT4-
ROUT4+
ROUT4-
SCF
DAC
DATT
Audio
I/F
SCF
DAC DATT
SCF
DAC DATT
SCF
DAC DATT
SCF
DAC DATT
PCM
Control
Register
SCF
SCF
DAC DATT
DAC DATT
DSD
SCF
DAC DATT
AK4358
MCLK
LRCK
BICK
SDTI1
SDTI2
SDTI3
SDTI4
3-wire
or I2C
DCLK
DSDL1
DSDR1
DSDL2
DSDR2
DSDL3
DSDR3
DSDL4
DSDR4
MS0203-E-02
-1-
2009/05
1 page  
46 LOUT2+
O DAC2 Lch Positive Analog Output Pin
47 ROUT1-
O DAC1 Rch Negative Analog Output Pin
48 ROUT1+
O DAC1 Rch Positive Analog Output Pin
Note: All input pins except pull-down pin should not be left floating.
[AK4358]
ABSOLUTE MAXIMUM RATINGS
(AVSS=DVSS=0V; Note 1)
Parameter
Symbol
Min
Power Supplies Analog
AVDD
-0.3
Digital
DVDD
-0.3
|AVSS-DVSS| (Note 2) ΔGND
-
Input Current (any pins except for supplies)
IIN
-
Analog Input Voltage
VINA
-0.3
Digital Input Voltage
VIND
-0.3
Ambient Operating Temperature
Ta -40
Storage Temperature
Tstg -65
Note 1. All voltages with respect to ground.
Note 2. AVSS and DVSS must be connected to the same analog ground plane.
Max
6.0
6.0
0.3
±10
AVDD+0.3
DVDD+0.3
85
150
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
Units
V
V
V
mA
V
V
°C
°C
RECOMMENDED OPERATING CONDITIONS
(AVSS=DVSS=0V; Note 1)
Parameter
Symbol
Min
Typ
Power Supplies
Analog
AVDD
4.75
5.0
(Note 3)
Digital
DVDD
4.75
5.0
Voltage Reference
VREF AVDD-0.5
-
Note 3. The power up sequence between AVDD and DVDD is not critical.
*AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
Max
5.25
5.25
AVDD
Units
V
V
V
MS0203-E-02
-5-
2009/05
5 Page 
[AK4358]
DCLK
DSDL
DSDR
tDCK
tDCKL
tDCKH
tDDD
Audio Serial Interface Timing (DSD Normal Mode, DCKB = “0”)
VIH
VIL
VIH
VIL
DCLK
tDCK
tDCKL
tDCKH
VIH
VIL
DSDL
DSDR
tDDD
tDDD
VIH
VIL
Audio Serial Interface Timing (DSD Phase Modulation Mode, DCKB = “0”)
CSN
CCLK
CDTI
tCSS
tCCKL tCCKH
tCDS tCDH
C1 C0 R/W
WRITE Command Input Timing
A4
VIH
VIL
VIH
VIL
VIH
VIL
MS0203-E-02
- 11 -
2009/05
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AK4358.PDF ] | |
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