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AK4388 Datasheet PDF - AKM

Part Number AK4388
Description 192kHz 24-Bit 2ch DAC
Manufacturers AKM 
Logo AKM Logo 

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AK4388 datasheet, circuit
ASAHI KASEI
[AK4388]
AK4388
192kHz 24-Bit 2ch ∆Σ DAC
GENERAL DESCRIPTION
The AK4388 offers the perfect mix for cost and performance based audio systems. Using AKM's multi bit
architecture for its modulator, the AK4388 delivers a wide dynamic range while preserving linearity for
improved THD+N performance. The AK4388 integrates a combination of SCF and CTF filters 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 AK4388 is offered in a
space saving 16pin TSSOP package.
FEATURES
† Sampling Rate Ranging from 8kHz to 192kHz
† 128 times Oversampling (Normal Speed Mode)
† 64 times Oversampling (Double Speed Mode)
† 32 times Oversampling (Quad Speed Mode)
† 24-Bit 8 times FIR Digital Filter
† SCF with High Tolerance to Clock Jitter
† Single Ended Output Buffer
† Digital de-emphasis
† Soft mute
† I/F format: 24-Bit MSB justified, 24/16-Bit LSB justified or I2S
† Master clock: 256fs, 384fs, 512fs, 768fs or 1152fs (Normal Speed Mode)
256fs or 384fs (Double Speed Mode)
128fs, 192fs (Quad Speed Mode)
† THD+N: -90dB
† Dynamic Range: 106dB
† Power supply: 4.5 to 5.5V
† Very Small Package: 16pin TSSOP (6.4mm x 5.0mm)
† AK4384 Parallel Mode Compatible
MCLK
DEM
SMUTE
ACKS
DIF0
DIF1
LRCK
BICK
SDTI
Control
Port
De-emphasis
Control
Clock
Divider
Audio
Data
Interface
8X
Interpolator
8X
Interpolator
∆Σ
Modulator
∆Σ
Modulator
SCF
LPF
SCF
LPF
RSTN
MS0485-E-02
-1-
VDD
VSS
VCOM
DZF
AOUTL
AOUTR
2006/08
Free Datasheet http://www.datasheet4u.net/

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AK4388 equivalent
ASAHI KASEI
[AK4388]
FILTER CHARACTERISTICS
(Ta = 25°C; VDD = 4.5 5.5V; fs = 44.1kHz)
Parameter
Symbol
min
typ
max Units
Digital filter (DEM = OFF)
Passband
±0.05dB (Note 9)
PB 0
20.0 kHz
–6.0dB
- 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
De-emphasis Filter (DEM = ON)
De-emphasis Error fs = 32kHz
-
-
–1.5/0
dB
(Relative to 0Hz)
fs = 44.1kHz
-
-
–0.2/+0.2
dB
fs = 48kHz
-
-
0/+0.6
dB
Digital Filter + LPF (DEM = OFF)
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.
MS0485-E-02
-5-
2006/08
Free Datasheet http://www.datasheet4u.net/

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Information Total 18 Pages
Download[ AK4388.PDF Datasheet ]

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