AK7722 Datasheet, PDF (8/28 Pages) Asahi Kasei Microsystems – 24bit 4ch ADC + 24bit 4ch DAC with Audio DSP

[AK7722]
No.
Name
49 SRBICK3
SRIN3
50
JX2
51 UNLOCK
52 INITRSTN
53 I2CSEL
54 TESTI2
55 AVDRV
56 VSS4
57 DVDD
58 SRCLFLT
59 VSS5
60 AVDD
61 AOUTR2N
62 AOUTR2P
63 AOUTL2N
64 AOUTL2P
65 AOUTR1N
66 AOUTR1P
67 AOUTL1N
68 AOUTL1P
69 AVDD
70 VCOM
I/O
Function
Classification
I Serial Bit Clock Input Pin 3 (for SRC)
System Clock
Input
I Serial Data Input Pin 3 (for SRC)
Digital Input
I Conditional Jump Pin2
The conditional jump pin (JX2) is valid by setting control register (JX2E) to Conditional Input
“1”.
O
SRC UNLOCK State Output Pin
This pin outputs “H” during initial reset.
SRC Status
Reset Pin (for Initialization)
I Use to initialize the AK7722. Set this pin to “L” when power-up the
AK7722.
I²C BUS Select Pin (Internal pull-down)
I2CSEL pin = “L”: 4-wired Interface
I _{I2CSEL pin = “H”: I2CBus selected mode. SCL and SDA are active.}
I2CSEL should be connected to “L” (VSS) or “H” (DVDD).
I
Test Input 2 Pin (Internal pull-down)
This pin must be connected to VSS4.
System
I²C Select
Test
O AVDRV Pin
Connect a 1μF capacitor between this pin and VSS4 pin. No external
circuits should be connected to this pin. This pin outputs “L” during initial
reset.
Analog Output
- Ground Pin 0V
Power Supply
- Digital Power Supply Pin 3.0~3.6V
Capacitor Connect Pin for SRCPLL
O Connect a 1μF capacitor between this pin and VSS4 pin. This pin outputs
“L” during initial reset.
Power Supply
Analog Output
- Ground Pin 0V
- Analog Power Supply Pin 3.0~3.6V
Power Supply
Power Supply
O
DAC2 Inverted Rch Differential Analog Output Pin
“Hi-Z” output during initial reset
Analog Output
O
DAC2 Non-inverted Rch Differential Analog Output Pin
“Hi-Z” output during initial reset
Analog Output
O
DAC2 Inverted Lch Differential Analog Output Pin
“Hi-Z” output during initial reset
Analog Output
O
DAC2 Non-inverted Lch Differential Analog Output Pin
“Hi-Z” output during initial reset
O
DAC1 Inverted Rch Differential Analog Output Pin
“Hi-Z” output during initial reset
Analog Output
Analog Output
O
DAC1 Non-inverted Rch Differential Analog Output Pin
“Hi-Z” output during initial reset
Analog Output
O
DAC1 Inverted Lch Differential Analog Output Pin
“Hi-Z” output during initial reset
Analog Output
O
DAC1 Non-inverted Lch Differential Analog Output Pin
“Hi-Z” output during initial reset
Analog Output
- Analog Power Supply Pin 3.0~3.6V
O Analog Common Voltage Output pin
Connect 0.1μF and 2.2μF capacitors between this pin and the VSS6 pin. No
external circuits should be connected to this pin. This pin outputs “L”
during initial reset.
Power Supply
Analog Output
MS1328-E-00-PB
8
2011/09