954226 Datasheet, PDF (18/22 Pages) Integrated Device Technology – Programmable Timing Control HubTM for Mobile P4TM Systems

954226
Programmable Timing Control Hub^TM for Mobile P4^TM Systems
Electrical Characteristics - PCICLK/PCICLK_F
PARAMETER
SYMBOL
CONDITIONS*
MIN
Output Impedance
R_DSP
V_O = V_DD*(0.5)
12
Output High Voltage
V_OH
I_OH = -1 mA
2.4
Output Low Voltage
V_OL
I_OL = 1 mA
Output High Current
I_OH
V _OH @MIN = 1.0 V
V_OH@MAX = 3.135 V
-33
Output Low Current
I_OL
V_OL @ MIN = 1.95 V
V_OL @ MAX = 0.4 V
30
Edge Rate
t_slewr/f
Rising/Falling edge rate
VOL = 0.4 V, VOH = 2.4 V
1
Duty Cycle
d_t1
V_T = 1.5 V
45
Group Skew
t_skew
V_T = 1.5 V
Jitter, Cycle to cycle
t_jcyc-cyc
V_T = 1.5 V
*TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%, CL = 5 pF with Rs = 33Ω (unless otherwise specified)
1_{Guaranteed by design and characterization, not 100% tested in production.}
TYP
MAX
55
0.55
-33
38
4
55
500
250
UNITS
Ω
V
V
mA
mA
mA
mA
V/ns
%
ps
ps
Notes
1
1
1
1
1
1
1
1
1
1
1
Electrical Characteristics - 48MHz
PARAMETER
SYMBOL
CONDITIONS*
Long Accuracy
ppm
see Tperiod min-max values
Clock period
T_period
48.00MHz output nominal
Output Impedance
R_DSP
V_O = V_DD*(0.5)
Output High Voltage
V_OH
I_OH = -1 mA
Output Low Voltage
V_OL
I_OL = 1 mA
Output High Current
I_OH
V _OH @MIN = 1.0 V
V_OH@MAX = 3.135 V
Output Low Current
Edge Rate
I_OL
t_{slewr/f_48}
V_OL @ MIN = 1.95 V
V_OL @ MAX = 0.4 V
48M Rising/Falling edge rate
VOL = 0.4 V, VOH = 2.4 V
Duty Cycle
d_t1
V_T = 1.5 V
Jitter, Cycle to cycle
t_jcyc-cyc
V_T = 1.5 V
*TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%, CL = 5 pF with Rs = 33Ω
1_{Guaranteed by design and characterization, not 100% tested in production.}
MIN
-100
20.8313
12
2.4
-33
30
1
45
TYP
MAX
100
20.8354
55
0.55
-33
38
UNITS
ppm
ns
Ω
V
V
mA
mA
mA
mA
2
V/ns
55
%
500
ps
Notes
1
1
1
1
1
1
1
1
1
1
1
Electrical Characteristics - REF-14.318MHz
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Long Accuracy
ppm
see Tperiod min-max values
-300
Clock period
Tperiod
14.318MHz output nominal
69.8270
Output High Voltage
VOH
IOH = -1 mA
2.4
Output Low Voltage
VOL
IOL = 1 mA
Output High Current
IOH
VOH @MIN = 1.0 V,
-29
VOH@MAX = 3.135 V
Output Low Current
IOL
VOL @MIN = 1.95 V,
@MAX = 0.4 V
VOL
29
Edge Rate
tslewr/f
Rising/Falling edge rate
VOL = 0.4 V, VOH = 2.4 V
1
Duty Cycle
dt1
VT = 1.5 V
45
Jitter
tjcyc-cyc
VT = 1.5 V
*TA = 0 - 70°C; Supply Voltage VDD = 3.3 V +/-5%, CL = 5 pF with Rs = 39Ω
1_{Guaranteed by design and characterization, not 100% tested in production.}
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REFOUT is at 14.31818MHz}
300
69.8550
0.4
-23
27
4
55
1000
IDT^® Programmable Timing Control Hub^TM for Mobile P4^TM Systems
ppm
ns
V
V
mA
mA
V/ns
%
ps
Notes
1,2
2
1
1
1
1
1
1
1
0930A—04/13/10
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