ICS94225 Datasheet, PDF (9/18 Pages) Integrated Circuit Systems – AMD-K7TM System Clock Chip

ICS94225
Electrical Characteristics - USB, REF(1:0)
TA = 0 - 70°C; VDD = 3.3 V +/-5%; CL = 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN
Output High Voltage
V_OH5
I_OH = -12 mA
2.4
Output Low Voltage
V_OL5
I_OL = 9 mA
Output High Current
I_OH5
V_OH = 2.0 V
Output Low Current
I_OL5
Rise Time¹
t_r5
Fall Time¹
t_f5
Duty Cycle¹
d_t5
V_OL = 0.8 V
16
V_OL = 0.4 V, VOH = 2.4 V
V_OH = 2.4 V, VOL = 0.4 V
VT = 1.5V
45
Jitter, Cycle-to-cycle^{1 t}jcyc-cyc2B
VT = 1.5V
1Guaranteed by design, not 100% tested in production.
TYP MAX UNITS
V
0.4
V
-22 mA
mA
0.98
4
ns
0.77
4
ns
54
57
%
471 1100 ps
Electrical Characteristics - CPUCLK (Open Drain)
TA = 0 - 70°C; VDD = 3.3 V +/-5%; CL = 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
Output Impedance
Z₀
V_O = V_X
Output High Voltage
Output Low Voltage
V_OH2B
V_OL2B
Termination to Vpull-up(external)
Output Low Current
Rise Time¹
Fall Time¹
I_OL2B
t_r2B
tf2B
V_OL = 0.3 V
V_OL = 0.3 V, V_OH = 1.2 V
V_OH = 1.2 V, V_OL = 0.3 V
Differential voltage-AC¹
V_DIF
Differential voltage-DC¹
V_DIF
Note 2
Note 2
Differential Crossover
V_X
Duty Cycle¹
d_t2B
Note 3
V_T = 50%
Skew¹
t_sk2B
V_T = 50%
Jitter, Cycle-to-cycle¹
t_jcyc-cyc2B
V_T = VX
Jitter, Absolute¹
t_jabs2B
V_T = 50%
Notes:
1 - Guaranteed by design, not 100% tested in production.
MIN
1
18
0.4
0.2
550
45
-250
TYP MAX
1.2
0.4
0.9
0.9
Vpu
+0.6
1100
51 55
46 200
86 250
250
UNITS
V
V
mA
ns
ns
V
V
mV
%
ps
ps
ps
2 - V_DIF specifies the minimum input differential voltages (V_TR-V_CP) required for switching, where V_TR is the "true"
input level and V_CP is the "complement" input level.
3 - Vpullup_(external) = 1.5V, Min = Vpullup_(external)/2-150mV; Max=(Vpullup_(external)/2)+150mV
0445B—08/01/03
9