ICS9LRS3187B Datasheet, PDF (12/20 Pages) Integrated Device Technology – PROGRAMMABLE TIMING CONTROL HUB FOR INTEL BASED SYSTEMS

ICS9LRS3187B
Programmable Timing Control Hub for Intel Based Systems
Datasheet
Electrical Characteristics - REF-14.318MHz, Commercial Temperature Range
PARAMETER
SYMBOL
CONDITIONS
Long Accuracy
ppm
see Tperiod min-max values
Clock period
Tperiod
14.318MHz output nominal
Absolute min/max period
Tabs
14.318MHz output nominal
CLK High Time
THIGH
CLK Low time
Output High Current
Output Low Current
Rising/Falling Edge Slew Rate
Duty Cycle
TLOW
IOH
IOL
t_SLEW
dt1
VOH @MIN = 1.0 V,
VOH@MAX = 3.135 V
VOL @MIN = 1.95 V,
VOL @MAX = 0.4 V
Measured between 0.8 to 2.0 V
VT = 1.5 V
Jitter, Cycle to cycle
tjcyc-cyc
VT = 1.5 V
NOTES: (unless otherwise noted, guaranteed by design and characterization, not 100% tested in production).
1_{Edge rate in system is measured from 0.8V to 2.0V.}
2 _{Duty cycle, Peroid and Jitter are measured with respect to 1.5V}
3 _{The average period over any 1us period of time}
4 _{Using frequency counter with the measurment interval equal or greater that 0.15s, target frequency is 14.318180 MHz}
MIN
TYP
MAX UNITS Notes
-100
0
100 ppm 2, 4
69.82033 69.84129 69.86224 ns 2, 3
69.83400
70.84800 ns
2
29.97543
38.46654 V
29.57543
38.26654 V
-33
-33
mA
30
38
mA
1
1.7
4
V/ns 1
45
53
55
%
2
115
1000
ps
2
Electrical Characteristics - 27MHz_Spread / 27MHz_NonSpread, Commercial Temperature Range
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX UNITS Notes
Long Accuracy
-50
50
1,2
ppm
see Tperiod min-max values
ppm
-15
15
1,2,3
Clock period
T_period
27.000MHz output nominal
37.0365
37.0376
Output High Current
I_OH
VOH @MIN = 1.0 V,
-29
VOH@MAX = 3.135 V
Output Low Current
I_OL
VOL @MIN = 1.95 V,
VOL @MAX = 0.4 V
29
Rising/Falling Edge Slew Rate
t_slewr/f
Rising/Falling edge rate
1
Duty Cycle
d_t1
V_T = 1.5 V
45
Jitter, 27MHz_NonSpread Output
Jitter, 27MHz_Spread Output
t_ltj
t_jpk-pk
t_jcyc-cyc
t_jcyc-cyc
Long Term (10us)
V_T = 1.5 V
V_T = 1.5 V
V_T = 1.5 V SS% <= 1.5% pk to pk
V_T = 1.5 V, SS% > 1.5% pk to pk
-100
NOTES: (unless otherwise noted, guaranteed by design and characterization, not 100% tested in production).
1_{Edge rate in system is measured from 0.8V to 2.0V at default slew rate control setting.}
2 _{All Long Term Accuracy and Clock Period specifications are guaranteed assuming that REF out is at 14.31818MHz}
3 _{At nominal temperature and voltage.}
4 _{Long term and peak to peak jitter do not apply to the 27MHz spreading output. The spread modulation directly impacts these values.}
2
50.4
485
57
82
134
-23
mA 1
27
mA 1
4
V/ns 1
55
%
1
800
ps
100
ps
120
ps
200
ps
4
200
ps
4
IDT^® Programmable Timing Control Hub for Intel Based Systems
12
1602F—11/04/11