
18
Integrated
Circuit
Systems, Inc.
ICS951402
Advance Information
0660—05/05/05
Electrical Characteristics - VCH, 48MHz DOT, 48MHz, USB
TA = 0 - 70C; VDD=3.3V +/-5%; CL = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output Frequency
FO1
48
MHz
Output Impedance
RDSP1
1
VO = VDD*(0.5)
20
48
60
W
Output High Voltage
VOH
1
IOH = -1 mA
2.4
V
Output Low Voltage
VOL
1
IOL = 1 mA
0.4
V
Output High Current
IOH
1
V OH@MIN = 1.0 V, V OH@MAX =
3.135 V
-29
-23
mA
Output Low Current
IOL
1
VOL @MIN = 1.95 V, VOL @MAX =
0.4 V
29
27
mA
48DOT Rise Time
tr1
1
VOL = 0.4 V, VOH = 2.4 V
0.5
0.6
1
ns
48DOT Fall Time
tf1
1
VOH = 2.4 V, VOL = 0.4 V
0.5
0.8
1
ns
VCH 48 USB Rise Time
tr1
1
VOL = 0.4 V, VOH = 2.4 V
1
1.2
2
ns
VCH 48 USB Fall Time
tf1
1
VOH = 2.4 V, VOL = 0.4 V
1
1.3
2
ns
48 DOT Duty Cycle
dt1
1
VT = 1.5 V
45
52.8
55
%
VCH 48 USB Duty Cycle
dt1
1
VT = 1.5 V
45
53.5
55
%
48 DOT Jitter
tjcyc-cyc
1
VT = 1.5 V
183
350
ps
USB to DOT Skew
tsk1
1
VT = 1.5 V (0 OR 180 degrees)
0.43
1
ns
VCH Jitter
tjcyc-cyc
1
VT = 1.5 V
223
350
ps
1Guaranteed by design, not 100% tested in production.
Electrical Characteristics - SDRAM
TA = 0 - 70C; VDD =VDDL 3.3 V +/-5%; CL = 30 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Output Impedance
RDSP2A
1
VO = VDD*(0.5)
10
20
Output Impedance
RDSN2A
1
VO = VDD*(0.5)
10
20
Output High Voltage
VOH2A
IOH = -28 mA
2.4
V
Output Low Voltage
VOL2A
IOL = 19 mA
0.4
V
Output High Current
IOH2A
VOH = 2.0 V
-42
mA
Output Low Current
IOL2A
VOL = 0.8 V
33
mA
Rise Time
tr2A
1
VOL = 0.4 V, VOH = 2.4 V
0.5
2.0
ns
Fall Time
tf2A
1
VOH = 2.4 V, VOL = 0.4 V
0.5
2
ns
Duty Cycle
dt2A
1
VT = 1.5 V
45
55
%
Jitter
1
tcyc-cyc
VT = 1.5 V
250.0
ps
1Guaranteed by design, not 100% tested in production.