ak7742 ETC-unknow, ak7742 Datasheet - Page 5

• Manufacturer Part Number: ak7742
• Description: 24bit 2ch Adc + 24bit 4ch Dac With Audio Dsp
• Manufacturer: ETC-unknow

No.
10 VSS2
11 XTI
12 XTO
13 SDOUT1
14 SDIN1/JX1
15 SDIN2/JX0
16 CKM[1]
17 CKM[0]
18 IRESETN
19 I2CSEL
20 DVDD
21 VSS2
22 LRCK
23 BICK
24 CLKO/SDOUT3
25
26 SDA
27 SCL
28 CAD0
29 CAD1
30 VSS1
1
2
3
4
5
6
7
8
9
Rev.0.5b_PB
AIN3L
AIN2R
AIN2L
AVDD
VSS1
LFLT
TESTI
CKM[2]
DVDD
SO/RDY/GPO/
SDOUT2
Pin name
I/O
I/O LR channel select clock pin
I/O Serial bit clock pin
I/O SDA I
O
O
O DSP serial data output pin
O Clock output / DSP serial data output pin
O
I ADC Lch Single-end input 3 pin
I ADC Rch Single-end input 2 pin
I ADC Lch Single-end input 2 pin
I
I Clock mode select pin 2
I
I Serial data input pin 1 / JX1
I Serial data input pin 2 / JX0
I Clock mode select pin 1
I Clock mode select pin 0
I Reset pin (for initialization)
I
I SCL I
I I
I I
Power supply pin for analog section 3.0V ~ 3.6V
Analog ground 0V
Filter connection pin for PLL
Test pin (internal pull-down resistor)
Power supply pin for digital section 3.0V ~ 3.6V
Digital ground 0V
Master clock input pin
Crystal oscillator output pin
I
Power supply pin for digital section 3.0V ~ 3.6V
Digital ground 0V
Serial data output pin / Data write ready output pin / General purpose output
Analog ground 0V
2
2
2
/ DSP serial data output pin
CBUS select pin
C bus address pin 0
C bus address pin 1
Connect to VSS2
When using a crystal oscillator, connect it between this pin and XTO.
When using external main clock, input to this pin with CMOS level.
When using a crystal oscillator, connect it between this pin and XTI.
When not using crystal oscillator, leave open. Output during initial reset is
not determined.
Connect to DVDD
Connect C=12nF to VSS1. “L” output during initial reset.
“L” output during initial reset
“L” output during initial reset with master mode.
“L” output during initial reset with master mode.
“L” output during initial reset
“L” output during initial reset
2
2
C bus interface
C bus interface
PIN FUNCTION
-
5
Function
-
Analog input
Analog input
Analog input
Analog power supply
Analog power supply
Analog output
Test
Mode select
Digital power supply
Digital power supply
Clock
Clock
Data interface
Data interface
Data interface
Mode select
Mode select
Reset
Microcomputer I/F
Digital power supply
Digital power supply
Data interface
Data interface
Clock
Microcomputer I/F
Microcomputer I/F
Microcomputer I/F
Microcomputer I/F
Microcomputer I/F
Analog power supply
Classification
[AK7742]
2008/08