ICS9248-65 Datasheet, PDF (6/10 Pages) Integrated Circuit Systems – Frequency Timing Generator for PENDIUM II Systems

ICS9248-65
Electrical Characteristics - Input/Supply/Common Output Parameters
TA = 0 - 70º C; Supply Voltage VDD = 3.3 V+/-5%, VDDL = 2.5 V+/-5% (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Operating
IDD2.5OP100 CL = 0 pF; Select @ 100 MHz
IDD2.5OP133 CL = 0 pF; Select @ 133.3 MHz
14 30
mA
18 30
Supply Current
IDD2.5OP144 CL = 0 pF; Select @ 144 MHz
19 30
Power Down
IDD2.5OP154 CL = 0 pF; Select @ 154 MHz
IDD2.5PD CL = 0 pF; PWRDWN# = 0
20 30
0.3 100 µA
Supply Current
Skew¹
Skew¹
Skew¹
tCPU-PCI
tCPU-3V66
tCPU-IOAPIC
VT = 1.5 V; VTL = 1.25 V
VT = 1.5 V; VTL = 1.25 V
VTL = 1.25 V
1.5 2.4
4
ns
1.4 1.5 ns
1.4
4
ns
1_{Guaranteed by design, not 100% tested in production.}
Electrical Characteristics - CPUCLK
T_A = 0 - 70º C; V_DD = 3.3 V +/-5%, V_DDL = 2.5 V +/-5%; C_L = 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP
Output High Voltage V_OH2B I_OH = -12.0 mA
Output Low Voltage V_OL2B I_OL = 12 mA
Output High Current
I_OH2B V_OH = 1.7 V
Output Low Current
I_OL2B V_OL = 0.7 V
Rise Time
t_r2B1
V_OL = 0.4 V, V_OH = 2.0 V
Fall Time
t_f2B1
V_OH = 2.0 V, V_OL = 0.4 V
Duty Cycle
d_t2B1 V_T = 1.25 V, Freq. < 124 MHz
Skew
t_sk2B1 V_T = 1.25 V
Jitter, One Sigma
Jitter, Absolute
Jitter, Cycle-to-cycle
t_j1σ2
1
B
t_jabs2B1
t_jcyc-cy
1
c2B
V_T = 1.25 V
V_T = 1.25 V
V_T = 1.25 V
1_{Guaranteed by design, not 100% tested in production.}
2
2.3
0.31
-39
19 27
0.95
1
45
50
22
21
-250 55
110
MAX UNITS
V
0.4 V
-19 mA
mA
1.6 ns
1.6 ns
55 %
175 ps
150 ps
+250 ps
250 ps
6