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PDF AKD4588 Data sheet ( Hoja de datos )
| Número de pieza | AKD4588 | |
| Descripción | 2/8-Channel Audio CODEC | |
| Fabricantes | Asahi Kasei Microsystems | |
| Logotipo |  |
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ASAHI KASEI
[AK4588]
AK4588
2/8-Channel Audio CODEC with DIR
GENERAL DESCRIPTION
The AK4588 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 AK4588 has a dynamic
range of 102dB for ADC, 106dB for DAC and is well suited for digital surround for home theater and car
audio. The AK4588 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 AK4588 provides
a fully compatibility of hardware and software with the AK4628 and the AK4114.
*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
- Single-Ended Outputs
- On-chip Switched-Capacitor Filter
- S/(N+D): 90dB
- Dynamic Range, S/N: 106dB
- Individual channel digital volume with 128 levels and 0.5dB step
- Soft mute
- 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)
MS0287-E-01
-1-
2004/03
1 page  
ASAHI KASEI
[AK4588]
Compatibility with AK4628 + AK4114
Functions
AK4628+ AK4114
AK4588
Parallel control mode
Yes
No
TDM0, DFS0, DZFE, SDOS, Available
Not available
SMUTE pins
Chip
4 wire serial
AK4628: Set by CAD1/0 pins
ADC/DAC part: Set by CAD1/0 pins
address(*)
(I2C pin= “L”) AK4114: Fixed to “00”
I2C Bus
AK4628: Set by CAD1/0 pins
DIR/DIT part: Fixed to “00”
ADC/DAC part: Set by CAD1/0 pins
(I2C pin = “H”) AK4114: Set by CAD1/0 pins
DIR/DIT part: Fixed to “00”
(*) The AK4588 has two register maps including ADC/DAC part (compatible with the AK4628) and DIR/DIT part
(compatible with AK4114). Each register is selected by Chip Address.
www.DataSheet4U.com
MS0287-E-01
-5-
2004/03
5 Page 
ASAHI KASEI
[AK4588]
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
94 102
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 6) 50 dB
DAC Analog Output Characteristics
Resolution
24 Bits
S/(N+D)
DR
S/N
www.DataSheet4U.com
(-60dBFS)
(Note 7)
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
80 90
78 88
- 88
95 106
88 100
94 106
- 100
- 106
95 106
88 100
94 106
- 100
- 106
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Interchannel Isolation
90 110
dB
DC Accuracy
Interchannel Gain Mismatch
0.2 0.5 dB
Gain Drift
Output Voltage
AOUT=0.6xVREFH
20 - ppm/°C
2.75 3.0 3.25 Vpp
Load Resistance
Power Supply Rejection
(Note 6)
5
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 = “L”)
(Note 7)
(Note 9)
(Note 10)
50 70 mA
37 52 mA
12 17 mA
44 62 mA
57 80 mA
68 95 mA
80 200 µA
MS0287-E-01
- 11 -
2004/03
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AKD4588.PDF ] | |
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