ICS950218 Datasheet, PDF (16/19 Pages) Integrated Circuit Systems – Programmable Timing Control Hub TM for P4 TM

Integrated
Circuit
Systems, Inc.
ICS950218
Electrical Characteristics - VCH, 48MHz DOT, 48MHz, USB
T_A = 0 - 70°C; VDD=3.3V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER SYMBOL
CONDITIONS
MIN
Output Frequency
F_O1
Output Impedance R_DSP11 V_O = V_DD*(0.5)
20
Output High Voltage V_OH1 I_OH = -1 mA
2.4
Output Low Voltage
V_OL1 I_OL = 1 mA
Output High Current
I_OH1
V_OH = 1.0 V
-29
V_OH = 3.135 V
Output Low Current
I_OL1
V_OL = 1.95 V
27
V_OL = 0.4 V
48DOT Rise Time
t_r11 V_OL = 0.4 V, V_OH = 2.4 V
0.5
48DOT Fall Time
t_f11 V_OH = 2.4 V, V_OL = 0.4 V
0.5
VCH 48 USB Rise Time t_r11 V_OL = 0.4 V, V_OH = 2.4 V
1
VCH 48 USB Fall Time t_f11 V_OH = 2.4 V, V_OL = 0.4 V
1
48 DOT Duty Cycle
d_t11 V_T = 1.5 V
45
VCH 48 USB Duty Cycle d_t11 V_T = 1.5 V
45
48 DOT Jitter
VCH Jitter
t_jcyc-cyc1 V_T = 1.5 V
t_jcyc-cyc1 V_T = 1.5 V
1_{Guaranteed by design, not 100% tested in production.}
TYP MAX UNITS
48
MHz
48
60
Ω
V
0.4
V
-23 mA
29 mA
1
ns
1
ns
2
ns
2
ns
55
%
55
%
350 ps
350 ps
Electrical Characteristics - REF
T_A = 0 - 70°C; VDD=3.3V +/-5%; C_L = 10-20 pF (unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
Output Frequency
F_O1
Output Impedance
R_DSP11 V_O = V_DD*(0.5)
Output High Voltage
V_OH1
I_OH = -1 mA
Output Low Voltage
V_OL1
I_OL = 1 mA
Output High Current
Output Low Current
Rise Time
I_OH1
V _OH@MIN = 1.0 V, V _OH@MAX = 3.135 V
I_OL1
V_{OL @MIN} = 1.95 V, V_{OL @MAX} = 0.4 V
t_r11
V_OL = 0.4 V, V_OH = 2.4 V
Fall Time
t_f11
V_OH = 2.4 V, V_OL = 0.4 V
Duty Cycle
Jitter
d_t11
t_jcyc-cyc1
V_T = 1.5 V
V_T = 1.5 V
1_{Guaranteed by design, not 100% tested in production.}
MIN TYP MAX UNITS
MHz
20
48
60
Ω
2.4
V
0.4
V
-29
-23 mA
29
27 mA
1
2
ns
1
2
ns
45
55
%
1000 ps
0466B—03/17/04
16