AK7740ET Datasheet, PDF (23/48 Pages) Asahi Kasei Microsystems – 24bit 2ch ADC + 24bit 4ch DAC with Audio DSP

[ASAHI KASEI]
[AK7740ET]
2-4) CONT3: ADC control
Command Name D7
D6
D5
D4
D3
D2
D1
D0
Code
Write Read
6Ch 7Ch CONT3 ISEL[2] ISEL[1] ISEL[0] SW3 OUTAE PSAD TEST
X
c D7,D6,D5:ISEL[2:0] analog input selector setting
ISEL[2](D7)
ISEL[1](D6)
ISEL[0](D5)
0
0
0
1
0
0
1
0
1
1
1
0
1
1
1
Analog input pin
AINL-,AINL+,AINR-,AINR+
AINL1,AINR1
AINL2,AINR2
AINL3,AINR3
AINL4,AINR4
d D4: SW3 internal path setting
0:Normal operation (ADC SDATA select)
1:DSP SDOUTD1 select
e D3:OUTAE SDOUT disable
0:SDOUTA=”L”
1:Output data selected by SW3
f D2:PSAD ADC power down
0:Normal operation
1:ADC power down
When not using the ADC, set this value to “1”, and the ADC will be in RESET.
The digital output data of the ADC will 00000h in power down mode.
When changing to normal operation, set this value to “0” at system reset.
g D1:TEST
0:Normal operation
1:TESTmode (Do NOT use this mode )
h D0: Always input 0
Note) Underlined settings of c~g indicates default.
Defaul
t
00h
<Pre-E-01>
- 23 -
2006/10