|
|
PDF AK4381 Data sheet ( Hoja de datos )
| Número de pieza | AK4381 | |
| Descripción | 108dB 192kHz 24-Bit 2ch DAC | |
| Fabricantes | Asahi Kasei Microsystems | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de AK4381 (archivo pdf) en la parte inferior de esta página. Total 21 Páginas | ||
|
No Preview Available !
ASAHI KASEI
[AK4381]
AK4381
108dB 192kHz 24-Bit 2ch ∆Σ DAC
GENERAL DESCRIPTION
The AK4381 offers the perfect mix for cost and performance based audio systems. Using AKM's multi bit
architecture for its modulator the AK4381 delivers a wide dynamic range while preserving linearity for
improved THD+N performance. The AK4381 has full differential SCF outputs, removing the need for AC
coupling capacitors and increasing performance for systems with excessive clock jitter. The 24 Bit word
length and 192kHz sampling rate make this part ideal for a wide range of applications including
DVD-Audio. The AK4381 is offered in a space saving 16pin TSSOP package.
FEATURES
o Sampling Rate Ranging from 8kHz to 192kHz
o 128 times Oversampling (Normal Speed Mode)
o 64 times Oversampling (Double Speed Mode)
o 32 times Oversampling (Quad Speed Mode)
o 24-Bit 8 times FIR Digital Filter
o On chip SCF
o Digital de-emphasis for 32k, 44.1k and 48kHz sampling
o Soft mute
o Digital Attenuator (Linear 256 steps)
o I/F format: 24-Bit MSB justified, 24/20/16-Bit LSB justified or I2S
o Master clock: 256fs, 384fs, 512fs or 768fs (Normal Speed Mode)
128fs, 192fs, 256fs or 384fs (Double Speed Mode)
128fs, 192fs (Quad Speed Mode)
o THD+N: -94dB
o Dynamic Range: 108dB
o High Tolerance to Clock Jitter
o Power supply: 4.75 to 5.25V
o Very Small Package: 16pin TSSOP (6.4mm x 5.0mm)
o AK4382A Pin Compatible
MCLK
CSN
CCLK
CDTI
LRCK
BICK
SDTI
µP
Interface
De-emphasis
Control
Clock
Divider
Audio
Data
Interface
8X
Interpolator
8X
Interpolator
∆Σ
Modulator
∆Σ
Modulator
SCF
SCF
VDD
VSS
DZFL
DZFR
AOUTL+
AOUTL-
AOUTR+
AOUTR-
PDN
MS0152-E-00
-1-
2002/5
1 page  
ASAHI KASEI
[AK4381]
SHARP ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25°C; VDD = 4.75 ∼ 5.25V; fs = 44.1kHz; DEM = OFF; SLOW = “0”)
Parameter
Symbol
min
typ
max Units
Digital filter
Passband
±0.05dB (Note 9)
-6.0dB
PB 0
20.0 kHz
- 22.05 - kHz
Stopband
(Note 9)
SB 24.1
kHz
Passband Ripple
PR
± 0.02
dB
Stopband Attenuation
SA 54
dB
Group Delay
(Note 10)
GD - 19.3 - 1/fs
Digital Filter + SCF
Frequency Response 20.0kHz fs=44.1kHz
40.0kHz fs=96kHz
80.0kHz fs=192kHz
FR
FR
FR
- ± 0.2 -
- ± 0.3 -
- +0.1/-0.6 -
dB
dB
dB
Notes: 9. The passband and stopband frequencies scale with fs(system sampling rate).
For example, PB=0.4535×fs (@±0.05dB), SB=0.546×fs.
10. The calculating delay time which occurred by digital filtering. This time is from setting the 16/24bit data
of both channels to input register to the output of analog signal.
SLOW ROLL-OFF FILTER CHARACTERISTICS
(Ta = 25°C; AVDD, DVDD = 4.75~5.25V; fs = 44.1kHz; DEM = OFF; SLOW = “1”)
Parameter
Symbol
min
typ
Digital Filter
Passband
±0.04dB
-3.0dB
Stopband
Passband Ripple
(Note 11)
(Note 11)
PB 0
- 18.2
SB 39.2
PR
Stopband Attenuation
SA 72
Group Delay
(Note 10)
GD -
19.3
Digital Filter + SCF
Frequency Response 20.0kHz fs=44.kHz
40.0kHz fs=96kHz
FR
FR
80.0kHz fs=192kHz
FR
Note: 11. The passband and stopband frequencies scale with fs.
For example, PB = 0.185×fs (@±0.04dB), SB = 0.888×fs.
-
-
-
+0/-5
+0/-4
+0.1/-5
max
8.1
-
± 0.005
-
-
-
-
Units
kHz
kHz
kHz
dB
dB
1/fs
dB
dB
dB
DC CHARACTERISTICS
(Ta=25°C; VDD=4.75 ∼ 5.25V)
Parameter
Symbol
min
High-Level Input Voltage
VIH 2.2
Low-Level Input Voltage
VIL -
High-Level Output Voltage (Iout=-80µA)
VOH
VDD-0.4
Low-Level Output Voltage (Iout=80µA)
VOL
-
Input Leakage Current
Iin -
typ
-
-
-
-
max Units
-V
0.8 V
-V
0.4 V
± 10 µA
MS0152-E-00
-5-
2002/5
5 Page 
ASAHI KASEI
[AK4381]
Figure 1. Mode 0 Timing
LRCK
BICK
(64fs)
SDTI
Mode 1
SDTI
Mode 4
01
8 9 10 11 12
Don’t care
19:MSB, 0:LSB
19
Don’t care 23 22 21 20 19
23:MSB, 0:LSB
Lch Data
31 0 1
8 9 10 11 12
0 Don’t care
19
0 Don’t care 23 22 21 20 19
Rch Data
31 0 1
0
0
Figure 2. Mode 1,4 Timing
LRCK
BICK
(64fs)
SDTI
01
2
22 23 24
30 31 0 1
2
22 23 24
30 31 0 1
23 22
1 0 Don’t care
23:MSB, 0:LSB
Lch Data
23 22
Figure 3. Mode 2 Timing
1 0 Don’t care
Rch Data
23 22
LRCK
BICK
(64fs)
SDTI
0123
23 24 25
31 0 1 2 3
23 24 25
31 0 1
23 22
1 0 Don’t care
23:MSB, 0:LSB
Lch Data
23 22
Figure 4. Mode 3 Timing
1 0 Don’t care
Rch Data
23
MS0152-E-00
- 11 -
2002/5
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet AK4381.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| AK4380 | 100dB 24-BIT 96kHz 2CH DAC | Asahi Kasei Microsystems |
| AK4381 | 108dB 192kHz 24-Bit 2ch DAC | Asahi Kasei Microsystems |
| AK4382 | 112dB 192kHz 24-BIT SCH DAC | Asahi Kasei Microsystems |
| AK4382A | 112dB 192kHz 24-Bit 2ch DS DAC |  AKM |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |