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PDF AKD4126 Data sheet ( Hoja de datos )
| Número de pieza | AKD4126 | |
| Descripción | 6ch 192kHz / 24-Bit Asynchronous SRC | |
| Fabricantes | Asahi Kasei Microsystems | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AKD4126 (archivo pdf) en la parte inferior de esta página. Total 27 Páginas | ||
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ASAHI KASEI
[AK4126]
AK4126
6ch 192kHz / 24-Bit Asynchronous SRC
GENERAL DESCRIPTION
AK4126 is a 6ch digital sample rate converter (SRC). The input sample rate ranges from 8kHz to 192kHz.
The output sample rate is from 8kHz to 192kHz. By using the AK4126, the system can take very simple
configuration because the AK4126 has an internal PLL and does not need any master clock Then the
AK4126 is suitable for the application interfacing to different sample rates like multi-channel high-end Car
Audio, DVD recorder, etc.
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FEATURES
1. SRC
• 6 channels input/output
• Asynchronous Sample Rate Converter
• Input Sample Rate Range (fsi): 8kHz ∼ 192kHz
• Output Sample Rate Range (fso): 8kHz ∼ 192kHz
• Input to Output Sample Rate Ratio: 1/6 to 6
• THD+N: −130dB
• Dynamic Range: 140dB (A-weighted)
• I/F format: MSB justified, LSB justified and I2S compatible
• PLL for Internal Operation Clock
• Digital De-emphasis Filter (32kHz, 44.1kHz and 48kHz)
• Soft Mute Function
2. Power Supply
• AVDD, DVDD: 3.0 ∼ 3.6V (typ. 3.3V)
3. Ta = −40 ∼ 85°C
4. Package: 64LQFP
MS0544-E-00
-1-
2006/09
1 page  
ASAHI KASEI
[AK4126]
PIN / FUNCTION
No.
1, 16,
33,48,
49,59,
64
Pin Name
NC
2 TEST0
3
4
5
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6
ILRCK
IBICK
DVDD
DVSS
7 TST0
8 SDTI1
9 SDTI2
10 SDTI3
11 IDIF0
12 IDIF1
13 IDIF2
14 TST1
15 TST2
17 TST3
18 TST4
19 UNLOCK
20 DVDD
21 DVSS
22 SMUTE
23 DITHER
24 PDN
25 SMT0
26 SMT1
27 DEM0
28 DEM1
29 PM
30 OBIT0
31 OBIT1
I/O Function
No Connect Pin.
-
No internal bonding. This pin must be connected to DVSS.
TEST Pin
I
This pin must be connected to DVSS.
I Input Channel Clock Pin
I Audio Serial Data Clock Pin
- Digital Power Supply Pin, 3.0 ∼ 3.6V
- Digital Ground Pin
TEST Pin
I
This pin must be connected to DVSS.
I Audio Serial Data Input #1 Pin
I Audio Serial Data Input #2 Pin
I Audio Serial Data Input #3 Pin
I Audio Interface Format #0 Pin for Input PORT
I Audio Interface Format #1 Pin for Input PORT
I Audio Interface Format #2 Pin for Input PORT
TEST Pin
I
This pin must be connected to DVSS.
TEST Pin
I
This pin must be connected to DVSS.
TEST Pin
I
This pin must be connected to DVSS.
TEST Pin
I
This pin must be connected to DVSS.
O Unlock Status Pin
- Digital Power Supply Pin, 3.0 ∼ 3.6V
- Digital Ground Pin
Soft Mute Pin
I
“H” : Soft Mute, “L” : Normal Operation
Dither Enable Pin
I
“H” : Dither ON, “L” : Dither OFF
Power-Down Mode Pin
I “H”: Power up, “L”: Power down reset and initializes the control register.
The AK4126 should be reset once by bringing PDN pin = “L” upon power-up.
I Soft Mute Timer Select #0 Pin
I Soft Mute Timer Select #1 Pin
I De-emphasis Control #0 Pin
I De-emphasis Control #1 Pin
I 4ch/6ch Mode Select Pin
I Bit Length Select #0 Pin for Output Data
I Bit Length Select #1 Pin for Output Data
Note: All input pins should not be left floating.
MS0544-E-00
-5-
2006/09
5 Page 
ASAHI KASEI
SWITCHING CHARACTERISTICS
(Ta=25°C; AVDD, DVDD=3.0 ∼ 3.6V; CL=20pF)
Parameter
Symbol
min
LRCK for Input data (ILRCK)
Frequency
Duty Cycle
fs
Duty
8
48
LRCK for Output data (OLRCK)
Frequency
Duty Cycle
fs
Duty
8
48
Audio Interface Timing
Input PORT
IBICK Period
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IBICK Pulse Width Low
tBCK
tBCKL
1/64fs
27
Pulse Width High
ILRCK Edge to IBICK “↑”
IBICK “↑” to ILRCK Edge
SDTI Hold Time from IBICK “↑”
SDTI Setup Time to IBICK “↑”
(Note 9)
(Note 9)
tBCKH
tLRB
tBLR
tSDH
tSDS
27
15
15
15
15
Output PORT
OBICK Period
tBCK
1/64fs
OBICK Pulse Width Low
tBCKL
27
Pulse Width High
OLRCK Edge to OBICK “↑”
(Note 9)
OBICK “↑” to OLRCK Edge
(Note 9)
OLRCK to SDTO (MSB) (Except I2S mode)
OBICK “↓” to SDTO
tBCKH
tLRB
tBLR
tLRS
tBSD
27
20
20
Reset Timing
PDN Pulse Width
(Note 10) tPD
150
Note 9. BICK rising edge must not occur at the same time as LRCK edge.
Note 10. The AK4126 can be reset by bringing the PDN pin = “L”.
typ
50
50
[AK4126]
max Units
192 kHz
52 %
192 kHz
52 %
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
20 ns
20 ns
ns
MS0544-E-00
- 11 -
2006/09
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet AKD4126.PDF ] | |
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