AK7754 Datasheet, PDF (14/26 Pages) Asahi Kasei Microsystems – Audio DSP with Stereo CODEC + MIC/HP-AMP

[AK7754]
DC CHARACTERISTICS
(Ta=-20ºC~85ºC; AVDD= HVDD= 3.0V~3.6V; DVDD18=1.8V; VSS1=VSS2=VSS3=VSS4=0V)
Parameter
Symbol
min
typ
max
Unit
High level input voltage
(Note 17)
VIH 80%DVDD
V
Low level input voltage
(Note 17)
VIL
20%DVDD
V
SCL, SDA High level input voltage
VIH 70%DVDD
V
SCL, SDA Low level input voltage
VIL
30%DVDD
V
DMDAT High level input voltage
VIH 65%DVDD
V
DMDAT Low level input voltage
VIL
35%DVDD
V
High level output voltage: Iout=-100μA (Note 18)
VOH DVDD-0.4
V
Low level output voltage: Iout=100μA (Note 18)
VOL
0.4
V
SDA Low level output voltage Iout=3mA
VOL
0.4
V
Input leak current
(Note 19)
Iin
±10
μA
Input leak current TEST1/2 pin
(Note 20)
Iid
22
μA
Input leak current XTI pin
Iix
26
μA
Note 17. Except for the SCL, SDA pin.
Note 18. Except for the SDA pin. The DMCLK pin is included.
Note 19. Except for the TEST2 pin, TEST1 pin and XTI pin.
Note 20. The TEST1 pin has an internal pull-down device, nominally 150kΩ.
POWER CONSUMPTION
(Ta=-20ºC ~ 85ºC; AVDD=HVDD=DVDD=3.3V; DVDD18=1.8V; VSS1=VSS2=VSS3=VSS4=0V, fin=1 KHz, 24 bit,
fs=48kHz, BICK1=64fs (CKM mode=4, BITFS mode=0), CODEC (Full-duplex mode, no output loads) and DSP
running with programmed that connects DSP DIN3 with DOUT1 and DIN1 with DOUT3.
Parameter
min
typ
max
Unit
Power Supplies: (Note 21)
Power-Up (IRSTN pin = “H”) CODEC + DSP + LineOut + HP
All Circuit Power-up
AVDD+DVDD _{AVDD=DVDD=HVDD=3.3V,}
HVDD
DVDD18=1.8V
DVDD18
21
-
mA
4.8
mA
29
-
mA
Power Consumption
137
mW
AVDD+DVDD
HVDD
AVDD=DVDD=HVDD=3.6V,
DVDD18=1.9V
DVDD18
22
38
mA
5.0
7.5
mA
31
70
mA
Reset (IRSTN pin = “L”), Reset condition (Note 22)
AVDD+DVDD+HVDD
-
1
10
μA
DVDD18
3
200
μA
Note 21. The actual power consumption of DVDD18 depends on the master clock frequency and the step size of the
DSP program. (BITFS bit = “2h” and DSPS bit = “0”)
Note 22. All digital input pins must be fixed to Logic High /Low.
MS1138-E-01-PB
14
2012/03