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參數(shù)資料
| 型號(hào)： | ICS9214YGLF-T |
| 英文描述： | Rambus XDR Clock Generator |
| 中文描述： | Rambus公司的XDR時(shí)鐘發(fā)生器 |
| 文件頁(yè)數(shù)： | 9/16頁(yè) |
| 文件大?。?/td> | 228K |
| 代理商： | ICS9214YGLF-T |
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9
Integrated
Circuit
Systems, Inc.
ICS9214
0809D—04/07/06
AC Characteristics-Inputs
T
A
= 0°C to +70°C; Supply Voltage AVDD2.5, VDD2.5 = 2.5 V +/- 0.125V (unless otherwise stated)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
CLK_INT/CLK_INC cycle time
1
t
CYCLEIN
7
11
ns
Cycle-to-Cycle Jitter
Input clock duty cycle
CLK_INT/CLK_INC rise and fall
time
Difference between input rise
and fall time on same pin of a
single device
Spread spectrum modulation
frequency
t
cyc
-t
cyc
d
tin
2
185
60
ps
%
over 10,000 cycles
20% to 80% of input
voltage
40
t
R
, t
F
175
700
ps
t
R-F
20% to 80% of input
voltage
-
150
ps
f
INM
3
30
33
kHz
Triangular modulation
0.6
%
Non-triangular modulation
0.54
%
Input clock slew rate
t
sl(I)
20% to 80% of input
voltage
CLK_INT, CLK_INC
VI = V
DD2.5
or GND
Bypass Mode
1
4
V/ns
Input Capacitance
5
Input Capacitance
5
CLK_INT cycle time
SMBus clock frequency
Notes:
1. Measured at (VIH(nom) - VIL(nom))/2 and is the absolute value of the worst case deviation.
2. Measured at crossing points for differential clock input or at VTH for single-ended clock input
3. If input modulation is used. Input modulation is not necessary.
C
INCLK
C
IN
t
CYCLETST
f
SMB
7
10
40
100
pF
pF
ns
kHz
4
10
4. The amount of allowed spreading for non-triangular modulation is determined
by the induced downstream tracking skew.
5. Capacitance measured at f = 1 MHz, DC bias = 0.9V, VAC <100mV.
m
INDEX
3
Spread spectrum modulation
index
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