AK7754 Datasheet, PDF (7/26 Pages) Asahi Kasei Microsystems – Audio DSP with Stereo CODEC + MIC/HP-AMP

[AK7754]
No.
Name
18 ^JX0
LRCK2
19 CAD1
20 CAD0
21 SCL
22 SDA
23 RDY
RDY
24
SDOUTM
25 STO
26 INITRSTN
27 TEST2
28 DVDD
29 VSS2
30 SRCLFLT
31 VSS3
32 HVCOM
33 HVDD
34 HPR
35 HPL
OUTR
36
OUTN
OUTL
37
OUTP
38 AVDD
I/O
Function
Classification
Conditional Jump Pin0 (JX0E bit = “1”)
I A conditional jump pin (JX0) is available by setting control register (JX0E) Conditional Input
to “1” when SCKSEK bit = “1”.
I LR Channel Select Clock Pin2 (for SRC)
I I²C Bus Address Pin1
I I²C Bus Address Pin0
I I²C Bus Interface
I/O
I²C Bus Clock
Outputs “Hi-z”
during
initial
reset.
Data I/F
I2C
O Data Write Ready Output Pin for Microprocessor Interface
Microprocessor I/F
O
Data Write Ready Output Pin for Microprocessor Interface
(SELM bit= “0”)
O
Serial Data Monitering Selector Output Pin
Outputs “L” during initial reset.
(SELM bit= “0”)
Microprocessor I/F
O
Status Output Pin
Outputs “H” during initial reset.
Status
Initial Reset Pin
I Use to initialize the AK7754. This pin must be “L” when power up the
Reset
AK7754.
I
Test2 Pin
This pin must be connected to DVDD.
Test
- Power Supply for Digital Section 3.0V ~ 3.6V
Digital
Power Supply
- Ground Pin 0V
Digital
Power Supply
SRC, PLL RC component connect pin
O Connect a 1μF capacitor between this pin and VSS2. This pin outputs “L” Analog Output
during initial reset.
- Ground Pin 0V
Analog
Power Supply
Headphone Common Voltage Output Pin
O Connect a of 1μF cap to VSS3. Do not use for an outside circuits. Outputs Headphone
“L” during initial reset.
- Headphone Power Supply Pin 3.0V~3.6V
Analog
Power Supply
O Headphone Rch Output Pin
Outputs “L” during initial reset
Analog Output
O Headphone Lch Output Pin
Outputs “L” during initial reset
Analog Output
O
DAC Rch Output Pin
Outputs “L” during initial reset
O
Inverted Line Output Pin
Outputs “L” during initial reset
(LODIF bit= “0”)
(LODIF bit= “1”)
Analog Output
O
DAC Lch Output Pin
Outputs “L” during initial reset
(LODIF bit= “0”)
O
DAC Non-inverted differential Analog Output Pin
Outputs “L” during initial reset
(LODIF bit= “1”)
Analog Output
- Analog Power Supply Pin 3.0V~3.6V
Analog
Power Supply
MS1138-E-01-PB
7
2012/03