FEDL7074-001DIGEST-01
OKI Semiconductor
ML7074-001 GA
PDNB, XO, AVREF Timings
(Unless otherwise specified, AVDD = 3.0 to 3.6 V, DVDD0, 1, 2 = 3.0 to 3.6 V, AGND = DGND0, 1, 2 = 0.0 V,
Ta = −20 to +60°C)
Parameter
Power down signal pulse
width
Symbol
tPDNB
txtal
Conditions
PDNB pin
Min.
1
Typ.
Max.
Unit
µs
Oscillation start-up time
100
ms
2+α
AVREF = 1.4 (90%)
C5 = 4.7 µF, C6 = 0.1 µF
(See Fig. 9.)
AVREF rise time
tAVREF
600
ms
s
Initialization mode start-up
time
tINIT
1
* α is a value that depends on the oscillation stabilizing time when using a crystal oscillator.
VDD
DVDD,
AVDD
0 V
VDD
PDNB
0 V
tPDNB
VDD
0 V
XO
txtal
About
1.4 V
AVREF
0 V
tAVREF
"1"
"0"
CR5-B7
Initialization mode
(READY)
tINIT
Fig. 1 PDNB, XO, and AVREF timings
12/31
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