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Número de pieza | AKD4589 | |
Descripción | 2/8-Channel Audio CODEC | |
Fabricantes | Asahi Kasei Microsystems | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de AKD4589 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
No Preview Available ! ASAHI KASEI
[AK4589]
AK4589
2/8-Channel Audio CODEC with DIR
GENERAL DESCRIPTION
The AK4589 is a single chip CODEC that includes two channels of ADC and eight channels of DAC. The
ADC outputs 24bit data and the DAC accepts up to 24bit input data. The ADC has the Enhanced Dual Bit
architecture with wide dynamic range. The DAC introduces the new developed Advanced Multi-Bit
architecture, and achieves wider dynamic range and lower outband noise. The AK4589 has a dynamic
range of 102dB for ADC, 114dB for DAC and is well suited for digital surround for home theater audio.
The AK4589 also has the balance volume control corresponding to the Dolby Digital (AC-3) system.
The also has digital audio receiver (DIR) and transmitter (DIT) compatible with 192kHz, 24bits. The DIR
has 8-channel input selector and can automatically detect a Non-PCM bit stream. The AK4589 provides
a compatibility of hardware and software with the AK4588.
*Dolby Digital (AC-3) is a trademark of Dolby Laboratories.
www.DataSheet4U.com
FEATURES
ADC/DAC part
• 2ch 24bit ADC
- 64x Oversampling
- Sampling Rate up to 96kHz
- Linear Phase Digital Anti-Alias Filter
- Single-Ended Input
- S/(N+D): 92dB
- Dynamic Range, S/N: 102dB
- Digital HPF for offset cancellation
- Overflow flag
• 8ch 24bit DAC
- 128x Oversampling
- Sampling Rate up to 192kHz
- 24bit 8 times Digital Filter
- Differential Outputs
- On-chip Switched-Capacitor Filter
- S/(N+D): 94dB
- Dynamic Range, S/N: 114dB
- Individual channel digital volume with 128 levels and 0.5dB step
- Soft mute
- De-emphasis for 32kHz, 44.1kHz, 48kHz
- Zero Detect Function
• High Jitter Tolerance
• Extenal Master Clock Input:
- 256fs, 384fs, 512fs (fs=32kHz ∼ 48kHz)
- 128fs, 192fs, 256fs (fs=64kHz ∼ 96kHz)
- 128fs (fs=120kHz ∼ 192kHz)
MS0339-E-00
-1-
2004/09
1 page ASAHI KASEI
[AK4589]
Compatibility with AK4588
Functions
AK4588
AK4589
DAC output
Single end
Differentianl
DAC S/(N+D)
90dB
94dB
DAC S/N
106dB
114dB
DAC Output voltage
Typ 3.0Vpp
Typ ±2.7Vpp
DAC AOUT
AOUT=0.6xVREFH
AOUT=0.54xVREFH
Load Resistance
5k ohm
2k ohm
Frequency Response 80kHz
±1.0
+0/-0.6
Output pin
#35,#37, #39,#41,#43,#45,#47,#49 #35 - #50
Power Supply voltage
Min=4.5V, Max=5.5V
Min=4.75V, Max=5.25V
(*) The AK4589 has two register maps including ADC/DAC part (compatible with the AK4588) and DIR/DIT part
(compatible with AK4588). Each register is selected by Chip Address.
www.DataSheet4U.com
MS0339-E-00
-5-
2004/09
5 Page ASAHI KASEI
[AK4589]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD, DVDD, PVDD, TVDD=5V; AVSS, DVSS=0V; VREFH=AVDD; fs=48kHz; BICK=64fs;
Signal Frequency=1kHz; 24bit Data; Measurement Frequency=20Hz∼20kHz at fs=48kHz, 20Hz~40kHz at fs=96kHz;
20Hz~40kHz at fs=192kHz, unless otherwise specified)
Parameter
min typ max Units
ADC Analog Input Characteristics
Resolution
S/(N+D)
DR
(-0.5dBFS)
(-60dBFS)
S/N (Note 5)
Interchannel Isolation
fs=48kHz
fs=96kHz
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
24 Bits
84 92
dB
- 86
dB
94 102
dB
88 96
dB
93 102
dB
93 102
dB
88 96
dB
93 102
dB
90 110
dB
DC Accuracy
Interchannel Gain Mismatch
0.2 0.3 dB
Gain Drift
20 - ppm/°C
Input Voltage
AIN=0.62xVREFH
2.90 3.10 3.30 Vpp
Input Resistance
fs=48kHz
15 25
kΩ
fs=96kHz
9 16
kΩ
Power Supply Rejection
(Note 7) 50 dB
DAC Analog Output Characteristics
Resolution
24 Bits
S/(N+D)
DR
S/N
www.DataSheet4U.com
(-60dBFS)
(Note 8)
fs=48kHz
fs=96kHz
fs=192kHz
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
fs=192kHz
fs=192kHz, A-weighted
fs=48kHz, A-weighted
fs=96kHz
fs=96kHz, A-weighted
fs=192kHz
fs=192kHz, A-weighted
86 94
84 92
- 92
104 114
98 108
104 114
- 108
114
104 114
98 108
104 114
- 108
- 114
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Interchannel Isolation
90 100
dB
DC Accuracy
Interchannel Gain Mismatch
0.2 0.5 dB
Gain Drift
Output Voltage
AOUT=0.54xVREFH
20 - ppm/°C
±2.5 ±2.7 ±2.9 Vpp
Load Resistance
Power Supply Rejection
(AC Load)
(Note 6)
(Note 7)
2
50
kΩ
dB
Power Supplies
Power Supply Current
Normal Operation (PDN = “H”)
AVDD
fs=48kHz,fs=96kHz
fs=192kHz
PVDD
DVDD+TVDD fs=48kHz
fs=96kHz
fs=192kHz
Power-down mode (PDN pin = “L”)
(Note 9)
(Note 10)
(Note 11)
70 98 mA
57 80 mA
12 17 mA
44 62 mA
57 80 mA
68 95 mA
0.1 1 mA
MS0339-E-00
- 11 -
2004/09
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet AKD4589.PDF ] |
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