ICS9178-03 Datasheet, PDF (5/8 Pages) Integrated Circuit Systems – 245 MHz Clock Generator and Integrated Buffer for PowerPC

ICS9178-03
AC Characteristics
V_DD =+5V ±5%, 0°C ≥ TAMBIENT ≥ +70°C unless otherwise stated
PARAMETER
Input Frequency (Note 1)
Input Clock Rise time (Note 1)
Input Clock Fall time (Note 1)
Output Frequency (2XPCLK)
Output Rise time, 0.8 to 2.0V 20%
to 80% (Note 1)
Fall time 2.0 to 0.8 80% to 20%
(Note 1)
Output Rise time 80% to 20%
(Note 1)
Output Fall time 80% to 20%
(Note 1)
Duty cycle 2XPCLK (Note 1)
Pulse Width, High, 2XPCLK
(Note 1, 2)
Pulse Width, Low, 2XPCLK
(Note 1, 2)
Duty cycle ABCLK (Note 1)
Duty cycle ABCLK (Note 1)
Duty cycle TTL (other clocks)
(Note 1)
Jitter 1 Sigma 2XPCLK (10,000
samples) (Note 1)
Jitter 1 Sigma 1XPCLK B & D
(10,000 samples) (Note 1)
Jitter 1 Sigma AB clock (10,000
samples) (Note 1)
Jitter Absolute 2XPCLK (Note 1)
Jitter Absolute 1XPCLK, B, D
clocks (Note 1)
Jitter Absolute AB clock (Note 1)
SYMBOL
TEST CONDITIONS
MIN
fi
8
ICLKr
-
ICLKf
-
fo2XPCLK 6X mode, 8X mode
75
4X mode
75
tr2XPCLK 15pF load
0.8 to 2.0V
-
20% to 80%
-
tf2XPCLK 15pF load
2.0 to 0.8V
-
80% to 20%
t(TTL)r 15pF load
-
t(TTL)f 15pF load
-
dt1
200 to 240 MHz @ 1.4V 110
ohm, 15pF load
42.5
Tpwr @ 1.8V, 110ΩLoad 2
1.2
Tpwr @ 0.6V, 110ΩLoad 2
1.0
dt3 15pF load @ 1.4V (8X mode)
70
dt4 15pF load @ 1.4V 6X mode
61
15pF load @ 1.4V 4X mode
45
dt5 15pF load @ 1.4V
45
Tj1s1
for 200 to 240 MHz on
2XPCLK
-
Tj1s2
for 200 to 240 MHz on
2XPCLK
-
Tj1s3
for 200 to 240 MHz on
2XPCLK
-
Tjabs1
for 200 to 240 MHz on
2XPCLK
-150
Tjabs2
for 200 to 240 MHz on
2XPCLK
-200
Tjabs3
for 200 to 240 MHz on
2XPCLK
-250
TYP
40.0
-
-
-
-
-
-
-
50
-
-
75
66
50
50
40
50
60
80
110
120
MAX
50.0
3
3
245
240
1.0
1.5
1.0
1.5
3.0
2.0
57.5
-
-
80
71
55
55
-
-
-
+150
+200
+250
UNITS
MHz
ns
ns
MHz
ns
ns
ns
ns
%
ns
ns
%
%
%
ps
ps
ps
ps
ps
ps
Note 1: Parameter is guaranteed by design and characterization. Not tested 100% in production.
Note 2: For 70Ω Load, 2XPCLK level may be pulled-up with a 390Ω resistor to meet minimum pulse width requirements
at both 1.8V and 0.6V at 240 MHz.
5