ICS9248-99 Datasheet, PDF (12/13 Pages) Integrated Circuit Systems – Frequency Generator & Integrated Buffers for Celeron & PII/III™

ICS9248-99
Preliminary Product Preview
Electrical Characteristics - PCI
T_A = 0 - 70C; V_DD = 3.3 V +/-5%; C_L = 10-30 pF (unless otherwise stated)
PARAMETER SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Output Impedance
Output Impedance
Output High Voltage
R_DSP11
R_DSN11
V_OH1
V_O = V_DD*(0.5)
V_O = V_DD*(0.5)
I_OH = -1 mA
12
55 Ω
12
55 Ω
2.4
V
Output Low Voltage
V_OL1 I_OL = 1 mA
0.55 V
Output High Current
I_OH1 VOH@ MIN = 1.0 V, VOH@ MAX = 3.135 V -33
-33 mA
Output Low Current
I_OL1 VOL@ MIN = 1.95 V, VOL@ MAX= 0.4
30
38 mA
Rise Time
t_r11
V_OL = 0.4 V, V_OH = 2.4 V
0.5 2.0 2.5 ns
Fall Time
t_f11
V_OH = 2.4 V, V_OL = 0.4 V
0.5 1.9 2.3 ns
Duty Cycle
d_t11
V_T = 1.5 V
45 50 55 %
Skew
t_sk11
V_T = 1.5 V
390 500 ps
Jitter
t_jcyc-cyc V_T = 1.5 V
110 500 ps
1_{Guarenteed by design, not 100% tested in production.}
Electrical Characteristics - REF1, 48MHz
T_A = 0 - 70C; V_DD = V_DDL = 3.3 V +/-5%; C_L = 10 -20 pF (unless otherwise stated)
PARAMETER SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Output Impedance
Output Impedance
R_DSP51
R_DSN51
V_O = V_DD*(0.5)
V_O = V_DD*(0.5)
20
60 Ω
20
60 Ω
Output High Voltage V_OH5 I_OH = 1 mA
2.4
V
Output Low Voltage
V_OL5 I_OL = -1 mA
0.4 V
Output High Current
I_OH5
V_{OH @MIN}=1 V, V_OH@MAX= 3.135 V
-29
-23 mA
Output Low Current
Rise Time
Fall Time
Duty Cycle
Jitter
I_OL5
t_r51
t_f51
d_t51
t_jcyc-cyc1
t_jcyc-cyc1
V_OL@MIN=1.95 V, V_OL@MIN=0.4 V
V_OL = 0.4 V, V_OH = 2.4 V
V_OH = 2.4 V, V_OL = 0.4 V
V_T = 1.5 V
V_T = 1.5 V; Fixed Clocks
V_T = 1.5 V; Ref Clocks
29
27 mA
4 nS
4 nS
45
55 %
500 ps
1000 ps
Skew
T_sk
V_T = 1.5 V
250 ps
1_{Guarenteed by design, not 100% tested in production.}
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