Nokia RM-57, Руководство по обслуживанию

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USB IF electrical characteristics
Description Parameter Min Max Unit Notes
Absolute
maximum
voltage on D+
and D-
V
D+/D-
-1 4.6 V USB
specification
revision 2.0
Supply voltage VBUS 4.4 5.25 V
Supply current:
Functioning
I
VBUS
100 mA
Suspended I
VBUS
500 uA
Unconfigured I
VBUS
100 mA
High-level
input voltage:
V
High (driven) V
IH
2
High (floating) V
IHZ
2.7 3.6
Low-level input
voltage
V
IL
0.8 V
Differential
input
sensitivity
V
DI
0.2 V |(D+) - (D-)|
Differential
input voltage
range
V
CM
0.8 2.5 V Included VDI
range
Low-level
output voltage
V
OL
0 0.3 V
High-level
output voltage
(driven)
V
OH
2.8 3.6 V
Output signal
crossover
voltage
V
CRS
1.3 2 V
FBUS interface electrical characteristics
Description Parameter Min Max Unit Notes
High-level
input voltage
V
IH
0.7 x V
DDSHV2
V
DDSHV2
V Helen2/3 specific
Low-level
Input voltage
V
IL
0 0.3 x V
DDSHV2
V
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