AK4688EN Datasheet, PDF (4/36 Pages) Asahi Kasei Microsystems – Asynchronous Stereo CODEC with Capless Line I/O

[AK4688]
ϐϯʗػೳ
No. Pin Name I/O
Function
1 SDTO
O Audio Serial Data Output Pin (for PORT1)
2 LRCK1 I/O Channel Clock Pin (for PORT1)
3 BICK1 I/O Audio Serial Data Clock Pin (for PORT1)
4 MCLK1 I ADC Master Clock Input Pin (for PORT1)
5 _PDN1
I
Power-Down Mode for ADC
When “L”, the ADC is powered-down.
6 _PDN2
I
Power-Down Mode for DAC
When “L”, the DAC is powered-down.
7 MCLK2 I DAC Master Clock Input Pin (for PORT2)
8 BICK2
I Audio Serial Data Clock Pin (for PORT2)
9 LRCK2 I Input Channel Clock Pin (for PORT2)
10 SDTI
I Audio Serial Data Input Pin (for PORT2)
CAD0
11
CKS
I CAD Address Pin (I2C pin = “H”)
I
ADC MCLK Speed Select Pin (I2C pin = “L”)
“H”: MCLK=768fs, “L”: MCLK=256fs
12 TEST1
I This pin must be connected to the ground
13 TEST2
I This pin must be connected to the ground
14 DVDD
- Digital Power Supply Pin, 3.0V∼3.6V
15 DVSS
- Digital Ground Pin, 0V
16 CP
I Positive Charge Pump Capacitor Terminal Pin (for Analog Input/Output)
17 CN
I Negative Charge Pump Capacitor Terminal Pin (for Analog Input/Output)
18 CVEE
O Charge Pump Circuit Negative Voltage Output Pin (for Analog Input/Output)
19 ROUT
O Rch Analog Output Pin
20 LOUT
O Lch Analog Output Pin
21 VREF
O
Reference Output Pin
Connect to AVSS2 with a 1µF low ESR capacitor over all temperatures.
22 AVDD2 - DAC Analog Power Supply Pin, 3.3V∼3.6V
23 AVSS2
- ADC Analog Ground Pin, 0V
24 AVSS1
- ADC Analog Ground Pin, 0V
25 AVDD1 - ADC Analog Power Supply Pin, 3.0V∼3.6V
26 RI
O Rch Feedback Resistor Input Pin
27 RO
O Rch Feedback Resistor Output Pin
28 LO
O Lch Feedback Resistor Output Pin
29 LI
O Lch Feedback Resistor Input Pin
30 RIN
I Rch Input Pin
31 NC
- This pin must be connected to the ground
32 LIN
33 I2C
I Lch Input Pin
I
I²C Pin
“H”= I²C control, “L”= H/W control
34 SDA
I/O
Control Data Pin (I2C pin = “H”)
When the I2C pin = “L” (H/W control), the SDA pin must be connected to DVSS.
35 SCL
I
Control Data Clock Pin (I2C pin = “H”)
When the I2C pin = “L” (H/W control), the SCL pin must be connected to DVSS.
PORT1 Master Mode Select Pin.
36 MSN
I
“L”(connected to the ground): Slave mode.
“H”(connected to DVDD) : Master mode.
Note: 全てのディジタル入力ピンはフローティングにしないで下さい。
MS1420-J-00
-4-
2012/05