AK7722 Datasheet, PDF (13/28 Pages) Asahi Kasei Microsystems – 24bit 4ch ADC + 24bit 4ch DAC with Audio DSP

[AK7722]
DC CHARACTERISTICS
(Ta=-40ºC~85ºC; AVDD=DVDD=3.0~3.6V)
Parameter
Symbol
min
typ
max
Unit
High Level Input Voltage
(Note 15)
VIH 80%DVDD
V
Low Level Input Voltage
(Note 15) VIL
20%DVDD
V
SCL,SDA High Level Input Voltage
VIH 70%DVDD
V
SCL,SDA Low Level Input Voltage
VIL
30%DVDD
V
High Level Output Voltage Iout=-100μA
VOH DVDD-0.5
V
Low Level Output Voltage Iout=100μA (Note 16) VOL
0.5
V
SDA Low Level Output Voltage Iout=3mA
VOL
0.4
V
Input Leak Current
Input Leak Current (pull-down pin)
Input Leak Current (XTI pin)
(Note 17)
Iin
(Note 18) Iid
Iix
±10
μA
22
μA
26
μA
Note 15. SCL and SDA pins are not included. (SCLK pins are included)
Note 16. The SDA pin is not included.
Note 17. Pull-down pins, and the XTI pin is not included.
Note 18. TESTI1 and TESTI2 pins are internal pulled-down pin. (Typ150kΩ)
POWER CONSUMPTION
(Ta=25ºC; AVDD=DVDD=3.0~3.6V (when typ=3.3V, max=3.6V))
Parameter
min
typ
max
Unit
Power Supply Current
(Note 19)
AVDD
55
mA
DVDD
65
mA
AVDD+DVDD
120
180
mA
INITRSTN pin= “L” (reference) (Note 20)
2
mA
Note 19. The current of DVDD changes depending on the system frequency and contents of the DSP program.
Note 20. This is a reference value when using a crystal oscillator. Since most of the current are applied to the oscillator
section in the initial reset state, the value may vary according to the crystal type and the external circuit. This is
a “reference data” only.
MS1328-E-00-PB
13
2011/09