AK7782 AKM [Asahi Kasei Microsystems], AK7782 Datasheet - Page 8

• Manufacturer Part Number: AK7782
• Description: Dual Audio DSP with 24bit 5ch ADC & SRC
• Manufacturer: AKM [Asahi Kasei Microsystems]

No. Pin Name
MS1337-E-00-PB
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
PDSPRSTN
INITRSTN
PCKRSTN
PADRSTN
BITCLKI
DVDD18
DVDD18
LRCLKI
DVDD
CAD1
CAD0
SCLK
VSS3
VSS3
RQN
SCL
SO
SI
I/O
O
I
I
-
-
I
I
I
I
I
I
I
I
I
I
-
-
-
Serial bit Clock input Pin
LR channel select Input Pin
Power Supply Pin for Digital Block 1.8V (typ)
Ground Pin 0V
Initial Reset N Pin (for device initialization)
Clock Reset N Pin
ADC Reset N Pin
DSP Reset N Pin
Microcomputer Interface Request N Pin (I2CSEL= “L”)
I
Serial Data Input Pin for Microcomputer Interface (I2CSEL= “L”)
I
Serial Data Clock Pin for Microcomputer Interface (I2CSEL= “L”)
SCL I
Power Supply Pin for Digital Block 1.8V (typ)
Ground Pin 0V
Power Supply Pin for Digital Block 3.3V (typ)
Serial Data Output Pin for Microcomputer Interface
2
2
C-bus Address Pin 1 (I2CSEL= “H”)
C-bus address Pin 0 (I2CSEL= “H”)
The AK7782 is in system reset state when PADRSTN and PDSPRSTN
pins = “L”.
The AK7782 is initialized by the INITRSTN pin = “L”.
This pin must be “L” upon power-up the AK7782.
CKM[2:0] Pin settings can be change when the INITRSTN pin = “L”.
The internal clock is reset by the PCKRSTN pin = “L”.
Setting of CKM[2:0] can be changed by the PCKRSTN pin = “L”,
even if the INITRSTN pin is “H”.
ADC1, ADC2 and ADCM are reset by the PADRSTN pin = “L”.
Control register RADRSTN bit= “0” can also reset these blocks.
DSP1 and DSP2 are reset by the PDSPRSTN= “L”. Control Register
RDSRE bit = “0” can also reset these blocks .
The AK7782 is in system reset state when PADRSTN and PDSPRSTN
pins = “L”.
Set this pin to “H” during initial reset or when not interfacing to a
microcomputer.
Set this pin to “L” when not used.
Set this pin to “H” when there is no clock input.
Outputs “Hi-z” when the RQN pin = “H”.
Outputs “Hi-z” during initial reset.
2
C-bus Interface Pin (I2CSEL= “H”)
- 8-
Function
System Clock
Digital Power
Supply
Power Supply
Reset
Microcomputer
I/F
I
Microcomputer
I/F
I
Microcomputer
I/F
I
Digital Power
Supply
Power Supply
Digital Power
Supply
Microcomputer
I/F
2
2
2
C
C
C
Classification
[AK7782]
2011/11