ICS9248-50_1 Datasheet, PDF (7/10 Pages) Integrated Circuit Systems – Frequency Timing Generator for Pentium II Systems

ICS9248-50
Electrical Characteristics - CPUCLK
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%, V_DDL = 2.5 V +/-5%; C_L = 10 - 20 pF (unless otherwise stated)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
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
Skew
t_sk
1
2B
V_T = 1.25 V
Jitter
period(norm) V_T = 1.25 V; 100MHz
Jitter
Jitter, Absolute
t_jcyc-cyc2B1 V_T = 1.25 V
t_jabs2B1 V_T = 1.25 V
1_{Guaranteed by design, not 100% tested in production.}
1.8 2.3
V
0.31 0.4 V
-27 mA
27
mA
0.4 1.15 1.6 ns
0.4 1.4 1.6 ns
44 48 55 %
134 175 ps
10 10 10.5 ns
186 200 ps
-250 150 +250 ps
Electrical Characteristics - REF/48MHz/24MHz
T_A = 0 - 70°C; V_DD = 3.3 V +/-5%, V_DDL = 2.5 V +/-5%; C_L = 10 - 20 pF (unless otherwise stated)
PARAMETER SYMBOL
CONDITIONS
MIN TYP MAX
Output High Voltage V_OH5 I_OH = -12 mA
2.6 3.1
Output Low Voltage V_OL5 I_OL = 9 mA
0.17 0.4
Output High Current
I_OH5
V_OH = 2.0 V
-44 -22
Output Low Current
Rise Time¹
Fall Time¹
Duty Cycle¹
I_OL5
V_OL = 0.8 V
t_r5
V_OL = 0.4 V, V_OH = 2.4 V
t_f5
V_OH = 2.4 V, V_OL = 0.4 V
d_t5
V_T = 1.5 V
16 42
1.4
4
1.1
4
45 53 55
Jitter¹
t_j1s5
t_jabs5
V_T = 1.5 V, REF
V_T = 1.5 V, REF
185 250
385 800
Jitter¹
t_j1s5
t_jabs5
V_T = 1.5 V, 48 MHz
V_T = 1.5 V, 48 MHz
169 250
469 800
UNITS
V
V
mA
mA
ns
ns
%
ps
ps
ps
ps
0278I—06/03/03
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