AK2331 Datasheet, PDF (7/17 Pages) Asahi Kasei Microsystems – DAC Type 8-bit 4-channel Electronic Volume

[AK2331]
Digital DC Characteristics
Parameter
High level input voltage
Low level input voltage
High level input current
Low level input current
Symbol
Condition
V_IH
CSN, SCLK, SDATA,
RSTN
V_IL
CSN, SCLK, SDATA,
RSTN
V_IH = DVDD
I_IH CSN, SCLK, SDATA,
RSTN
V_IL = 0V
I_IL CSN, SCLK, SDATA,
RSTN
Min.
Typ.
Max.
Unit
0.8DVDD
V
0.2DVDD
V
1
μA
-1
μA
System Reset
Parameter
Symbol Condition
Min.
Hardware reset signal
input width
t_RSTN RSTN pin
1
Software reset
SRST
register
Typ.
Max.
Unit Remarks
μs
*1)
*2)
*1) 35ms or more after power-on, be sure to perform a hardware reset operation (register initialization).
When a low pulse is input for 1μs or more, a reset is made. At this time, set the digital input (DI)
pins: RSTN to high, CSN to high, and SCLK to low.
tRSTN
RSTN
V_IH
V_IL
*2) When the SRST[7:0] register is set to 0xAA (10101010), a software reset is made.
This setting initializes all registers.
For details, refer to "Register Functions".
MS0903-E-00
-7-
2008/03