Alcor Micro AU9412EEP, Техническое справочное руководство

Страница: 23 / 29

ELECTRICAL CHARACTERISTICS 19
AC ELECTRICAL CHARACTERISTICS
GND=0V, Is = IS=3.0 C=50pf, RL=500ohms
LIMITS
SYMBOL PARAMETER WAVFORM -40
•
C to +86
•
C -40
•
C to +86
•
C UNIT
MIN TYP MAX MIN MAX
tpLH
tpHL VMO/VPO to D+/D-
Full Speed 1 0
0 12
12 0
0 14
14 ns
trise
tfall Rise and Fall Times
Full Speed 2 4
4 9
9 20
20 4
4 20
20 ns
tRFM Rise and Fall Time
Matching
Full Speed 90 110 90 110 %
tpLH
tpHL VMO/VPO to D+/D-
Low Speed 1 120
120 300
300 300
300 ns
trise
tfall Rise and Fall Times
Low Speed 2 75
75 300
200 75
75 300
200 ns
tRFM Rise and Fall Time
Matching
Low Speed 70 130 70 130 %
tpLH
tpHL D+/D- to RCV 3 9
9 16
16 16
16 ns
tpLH
tpHL D+/D- to VP/VM 1 4
4 8
8 8
8 ns
tpHZ
tpZH
tpLZ
tpZL
OE# to D+/D- RL =
500ohm 4
12
12
10
10 12
12
10
10 ns
Setup for SPEED 5 0 ns
Vcp Crossover point 1 3 1.3 2.0 1.3 2.0 V
NOTE:
1. The crossover point is in the range of 1.3V to 2.5V for the low speed mode with a 5Cpf capacitance.