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PDF AK5397 Data sheet ( Hoja de datos )
| Número de pieza | AK5397 | |
| Descripción | 32-Bit Stereo Premium ADC | |
| Fabricantes | Asahi Kasei Microsystems | |
| Logotipo |  |
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[AK5397]
AK5397
32-Bit Stereo Premium ADC
1. Genaral Description
The AK5397 is a high performance 32-bit stereo
ADC that achieves class leading performance of
127dB dynamic range for stereo output. This is a
flagship addition to AKM’s VERITA series of
product in the Audio 4 ProTM family. The AK5397
integrates a newly developed circuit by VELVET
SOUNDTM technology achieving rich sound field
and bass representation that realizes a music
playback experience with less distortion. The
class leading performance with a maximum
768kHz PCM output is supported for digital
output and newly developed 32-bit digital filters
are integrated for the best sound quality. The
AK5397 is suitable for digital video recorders
and high quality sound studio mixers for
recording and editing high-resolution sound
sources.
2. Feartures
Advanced multi bit Architecture ADC
Resolution: 32bit
Sampling Rate: 8kHz ~ 768kHz
Full Differential Inputs
S/(N+D): 108dB
DR, S/N: 127dB (Mono Mode: 130dB)
Sharp Roll Off Digital Filter (GD=41.5/fs)
Passband: 0 ~ 21.82kHz (@ fs=48kHz)
Passband Ripple: +0.00010/-0.00015dB
Stopband Attenuation: 100dB
Short Delay Digital Filter (GD=12.5/fs)
Passband: 0 ~ 22.22kHz (@ fs=48kHz)
Passband Ripple: +0.055/-0.015dB
Stopband Attenuation: 93dB
Minimum Phase Digital Filter (GD=3.5/fs)
Passband: 0 ~ 21.75kHz(@ fs=48kHz)
Passband Ripple: +0.04/-0.02dB
Stopband Attenuation: 93dB
Master / Slave Mode
Master Clock:
256fs/512fs (Normal Speed; 8kHz~48kHz)
256fs (Double Speed; 48Hz ~ 96kHz)
128fs (Quad Speed; 96kHz ~ 192kHz)
64fs (Octal Speed; 192kHz ~ 384kHz)
32fs (Hex Speed; 384kHz ~ 768kHz)
Audio Interface Format: 32bit MSB justified, I2S
compatible or TDM
Cascade TDM I/F: 8ch/48kHz, 4ch/96kHz,
4ch/192kHz
Digital HPF for Offset Cancel
Overflow Flag
Power Supply:
4.75 ~ 5.25V(Analog), 3.0 ~ 3.6V(Digital)
Power Dissipation: 455mW
Ta = -10 ~ 70 C
Package: 44-pin LQFP
014011535-E-00
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2014/11
1 page  
[AK5397]
■ Functions
No. Pin Name Power I/O
Function
1 LIN+
A I Lch Positive Analog Input Pin
2 LIN-
A I Lch Negative Analog Input Pin
3 TEST1
A
-
Test Pin
This pin must be connected to AVSS.
4 AVSS
A - Analog Ground Pin, 0V
5 HPFE
D
I
HPF Enable Pin
“L”: Disable, “H” Enable
6 CKS0
D I Clock Mode Select #0 Pin
7 CKS1
D I Clock Mode Select #1 Pin
8 CKS2
D I Clock Mode Select #2 Pin
9 PDN
Power down & Reset pin
D I “L”: All blocks are powered-down and reset.
“H”: Normal Operation
10 DVDD
D - Digital Power Supply Pin, 3.0V ~ 3.6V
11 DVSS
D - Digital Ground Pin, 0V
12 MCLK
D I Master Clock Input Pin
13 BICK
D
I/O
Serial Data Clock Pin
When PDN pin = “L”, BICK outputs “L” in master made.
14 LRCK
D
I/O
L/R Channel Select Clock Pin
When PDN pin = “L”, LRCK outputs “L” in master made.
15 SDTO1
D
O
Serial Data Output #1 Pin (Sharp Roll Off Filter Output)
When PDN pin = “L”, SDTO1 outputs “L”.
16 SDTO2
D
O
Serial Data Output #2 Pin (Short Delay or Minimum Phase Filter Output)
When PDN pin = “L”, SDTO2 outputs “L”.
17 OVF
Analog Input Overflow Detect Pin
DO
This pin goes to “H” if any analog inputs overflows
When the PDN pin = “L”, the OVF pin outputs “L”.
SDTO1 Output Mute Pin
18 SDM1
D I This function is synchronized with LRCK edges.
“L”: Normal Operation, “H”: “L” output
SDTO2 Output Mute Pin
19 SDM2
D I This function is synchronized with LRCK edges.
“L”: Normal Operation, “H”: “L” output
20 SDFIL
D
I
SDTO2 Digital Filter Select Pin
“L”: Short Delay, “H”: Minimum Phase
21 DIF
D
I
Audio Interface Format Pin
“L”: 32bit MSB justified, “H”: 32bit I2S Compatible
22 MSN
D
I
Master/Slave mode Select Pin
“L”: Slave mode, “H”: Master mode
23 DVSS
D - Digital Ground Pin, 0V
24 DVDD
D - Digital Power Supply Pin, 3.0 ~ 3.6V
25 TDMIN1 D I TDM Data Input #1 Pin
26 TDMIN2 D I TDM Data Input #2 Pin
27 TDM0
D
I
TDM I/F Format Enable Pin
“L”: Normal Mode, “H”: TDM Mode
28 TDM1
D
I
TDM I/F BICK Frequency Select Pin
“L”: 256fs, “H”: 128fs
014011535-E-00
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2014/11
5 Page 
■ Short Delay Filter Characteristics
(1) Short Delay Filter Characteristics (fs=48kHz)
(Ta=25C; AVDD=4.75~5.25V; DVDD=3.03.6V; fs=48kHz; SDFIL=“L”)
Parameter
Symbol Min.
Typ.
ADC Digital Filter (Decimation LPF):
Passband
(Note 13) Figure 8-(1) PB
0
Passband Ripple (Note 14) Figure 8-(2) PR
-0.015
Frequency Response
-0.1dB
FR - 22.40
(Note 14)
-3.0dB
- 23.70
-6.0dB
- 24.28
Stopband
(Note 14) Figure 8-(3) SB
27.93
Stopband Attenuation
Figure 8-(4) SA
93
Group Delay Distortion
GD
Group Delay
(Note 15) GD
12.5
ADC Digital Filter (HPF):
Frequency response
-3dB
FR -
0.93
(Note 14)
-0.1dB
- 6.1
(2) Short Delay Filter Characteristics (fs=96kHz)
(Ta=25C; AVDD=4.75~5.25V; DVDD=3.03.6V; fs=96kHz; SDFIL=“L”)
Parameter
Symbol Min.
Typ.
ADC Digital Filter (Decimation LPF):
Passband
(Note 13) Figure 9-(1) PB
0
Passband Ripple (Note 14) Figure 9-(2) PR
-0.05
Frequency Response
-0.1dB
FR - 44.68
(Note 14)
-3.0dB
- 47.40
-6.0dB
- 48.56
Stopband
(Note 14) Figure 9-(3) SB
55.90
Stopband Attenuation
Figure 9-(4) SA
93
Group Delay Distortion
GD
Group Delay
(Note 15) GD
12.4
ADC Digital Filter (HPF):
Frequency response
-3dB
FR -
0.93
(Note 14)
-0.1dB
- 6.1
[AK5397]
Max.
22.22
+0.055
-
-
-
3072
±0.1
-
-
Unit
kHz
dB
kHz
kHz
kHz
kHz
dB
1/fs
1/fs
Hz
Hz
Max.
44.46
+0.02
-
-
-
3072
±0.075
-
-
Unit
kHz
dB
kHz
kHz
kHz
kHz
dB
1/fs
1/fs
Hz
Hz
014011535-E-00
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2014/11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AK5397.PDF ] | |
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