AK7756 Datasheet, PDF (15/27 Pages) Asahi Kasei Microsystems – DSP with Mono CODEC + Mic/Lineout Amp

[AK7756]
SWITCHING CHARACTERISTICS
■ System Clock
(Ta= Tmin~Tmax, AVDD=DVDD= 3.0V ~ 3.6V, DVDD18= 1.7V ~ 1.9V, VSS1=VSS2=0V, CL=20pF)
Parameter
Symbol
min
typ
max
Master operation
a) XTI/XTO with a X’tal, External Clock input
CKM[2:0]bits=6h(768x16KHz)
fXTI
11.0
12.288
12.4
Duty Cycle
40
50
60
Slave mode operation
LRCK Frequency
fs
8
16
BICK Frequency
fBICK
Duty
0.1
32fs/48fs/64fs
1.1
40
60
Unit
MHz
%
kHz
MHz
%
■ Reset
(Ta= Tmin~Tmax, AVDD=DVDD=3.0~3.6V; DVDD18=1.7~1.9V; VSS1=VSS2=0V)
Parameter
Symbol
min
typ
Reset pulse width
tRST
600
(Note 29)
Note 29. The IRSTN pin must be put to “H” after all power supplies are powered up.
max
Unit
ns
MS1218-E-00-PB
15
2010/08