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PDF AK5572 Data sheet ( Hoja de datos )
| Número de pieza | AK5572 | |
| Descripción | 2-Channel Differential 32-bit ADC | |
| Fabricantes | AKM | |
| Logotipo |  |
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[AK5572]
AK5572
2-Channel Differential 32-bit ADC
1. General Description
The AK557x series is a 32-bit, 768 kHz sampling, differential input A/D converter for digital audio
systems. It achieves 121 dB dynamic range and 112 dB S/(N+D) while maintaining low power
consumption performance.
The AK5572 integrates a 2-channel A/D converter, suitable for mixers and multi-channel recorders. Four
types of digital filters are integrated and selectable according to the sound quality preference. The
AK5572 can be easily connected to a DSP by supporting TDM audio formats. Additionally, it supports
DSD output up to 11.2MHz.The channel summation mode improves the dynamic range performance by
summing-up multiple channel A/D data and averaging. The dynamic range is improved to 124 dB in
2-to-1 mode.
2. Features
Sampling Rate: 8 kHz - 768 kHz
Input: Full Differential Inputs
S/(N+D): 112 dB
DR: 121 dB (2-to-1 mode: 124 dB)
S/N: 121 dB (2-to-1 mode: 124 dB)
Internal Filter: Four types of LPF, Digital HPF
Power Supply: 4.75-5.25 V (Analog), 1.7-1.98 V or 3.0-3.6 V (Digital)
Output Format
PCM mode: 24/32-bit MSB justified, I2S or TDM
DSD mode: DSD Native 64, 128, 256
Maximized Slot Efficiency in TDM Mode by Optimal Data Placed Mode
Cascade TDM I/F:
TDM512: fs= 48 kHz
TDM256: fs= 96 kHz or 48 kHz
TDM126: fs= 192 kHz, 96 kHz or 48 kHz
Operation Mode: Master Mode & Slave Mode
Detection Function: Input Overflow Flag
Serial Interface: 3-wire Serial and I2C μP I/F (Pin setting is also available)
Power Consumption: 148 mW (@AVDD= 5.0 V, TVDD= 3.3 V, fs= 48 kHz)
Package: 48-pin QFN
015016766-E-00
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1 page  
[AK5572]
■ Pin Functions
No. Pin Name
1 NC
2 VREFL1
3 VREFH1
4 AIN2N
5 AIN2P
6 AVDD
7 AVSS
8 TESTIN1
9 TESTIN2
10 TESTIN3
11 TESTIN4
12 NC
13 TESTIN5
14 TESTIN6
15 TEST
16 MCLK
17 TVDD
18 DVSS
19 VDD18
I/O Function
- NC Pin (The pins that are not to be connected)
I ADC Low Level Voltage Reference Input Pin
I ADC High Level Voltage Reference Input Pin
I Channel 2 Negative Input Pin
I Channel 2 Positive Input Pin
- Analog Power Supply Pin (AIN1-2), 4.75-5.25 V
- Analog Ground Pin (AIN1-2)
- Test Input Pin1
- Test Input Pin2
- Test Input Pin3
- Test Input Pin4
- NC Pin (The pins that are not to be connected)
- Test Input Pin5
- Test Input Pin6
I TEST Enable Pin
I Master Clock Input Pin
-
Digital I/O Buffers and LDO Power Supply Pin,
1.7-1.98 V (LDOE pin= “L”) or 3.0-3.6 V (LDOE pin= “H”).
- Digital Ground Pin
I Digital Core Power Supply Pin, 1.7-1.98 V (LDOE pin= “L”)
O LDO Stabilization Capacitor Connect Pin. (LDOE pin= “H”)
20 PDN
21 PW0
22 PW1
23 PW2
24 MSN
BICK
25
DCLK
LRCK
26
DSDOL1
TDMIN
27
DSDOR1
28 SDTO1
29 TESTO1
30 OVF
I
Reset & Power Down Pin
“L”: Reset & Power Down, “H” : Normal Operation
I Power Management Pin, Channel Summation Select Pin1
I Power Management Pin, Channel Summation Select Pin2
I Power Management Pin, Channel Summation Select Pin3,
I Master/Slave Select Pin
I
Audio Serial Data Clock Input Pin in PCM & Slave Mode
(This pin is pull down by 100 kΩ internally.)
O
Audio Serial Data Clock Output Pin in PCM & Master Mode
(This pin is pull down by 100 kΩ internally.)
O
DSD Clock Output Pin in DSD Mode
(This pin is pull down by 100 kΩ internally.)
I
Channel Clock Input Pin in PCM & Slave Mode
(This pin is pull down by 100 kΩ internally.)
O
Channel Clock Output Pin in PCM & Master Mode
(This pin is pull down by 100 kΩ internally.)
O
Audio Serial Data Output Pin for AIN1 in DSD Mode
(This pin is pull down by 100 kΩ internally.)
I
TDM Data Input Pin in PCM Mode
(This pin is pull down by 100 kΩ internally.)
O
Audio Serial Data Output Pin for AIN2 in DSD Mode
(This pin is pull down by 100 kΩ internally.)
O Audio Serial Data Output Pin for AIN1 and AIN2 in PCM Mode
O Test Output Pin1
O Analog Input Over Flow Flag Output Pin
Power Down
Status
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Hi-z & Pull
Down with
500 Ω
-
-
-
-
-
-
Hi-z
Hi-z
-
Hi-z
Hi-z
-
Hi-z
L
Hi-z
L
015016766-E-00
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2015/12
5 Page 
[AK5572]
Figure 3. SHARP ROLL-OFF (fs= 48 kHz)
Figure 4. SLOW ROLL-OFF (fs= 48 kHz)
Figure 5. SHORT DELAY SHARP ROLL-OFF (fs= 48 kHz)
Figure 6. SHORT DELAY SLOW ROLL-OFF (fs= 48 kHz)
015016766-E-00
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2015/12
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AK5572.PDF ] | |
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