PI49FCT3807
3.3V Fast CMOS Clock Driver
Features
3.3V version of PI49FCT807
Ultra low skew: 0.35ns
Low Input Capacitance
Minimum duty cycle distortion
1:10 fanout
High speed: 3.5ns propogation
TTL input and CMOS output compatible
– VOH =3.3V (typical)
– VOL =0.3V (typical)
• Industrial Temperature: –40°C to +85°C
• 3.3V ±10% operation
• Packaging (Pb-free & Green Available):
– 20-pin 300-mil wide SOIC (S)
– 20-pin 150-mil wide QSOP (Q)
– 20-pin 209-mil wide SSOP (H)
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Description
Pericom Semiconductor’s PI49FCT3807 is a 3.3V 1-to-10 clock
driver. This low skew clock driver features one input and ten outputs
fanout. The large fanout from a single input line reduced loading
on input clock. TTL level outputs reduce noise levels on the part.
Typical applications are clock and signal distributon
Block Diagram
Pin Configuration
B0
B1
B2
B3
B4
A
B5
B6
A
GND
B0
V
CC
B1
GND
B2
V
CC
B3
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
CC
B9
B8
GND
B7
V
CC
B6
GND
B5
B4
Pin Description
B7
B8
B9
Pin Name
A
B
0
-B
9
GND
V
CC
Input
Outputs
Ground
Power
Description
09-0005
1
PS7010F
11/16/09
PI49FCT3807
3.3V Fast CMOS Clock Driver
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ............................................................ –65°C to +150°C
Ambient Temperature with Power Applied ........................... –40°C to +85°C
Supply Voltage to Ground Potential (Inputs & V
CC
Only) .....–0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ..–0.5V to +7.0V
DC Input Voltage ....................................................................–0.5V to +7.0V
DC Output Current............................................................................... 120mA
Power Dissipation ................................................................................... 0.5W
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the
device. This is a stress rating only and functional operation
of the device at these or any other conditions above those
indicated in the operational sections of this speci
fi
cation is
not implied. Exposure to absolute maximum rating condi-
tions for extended periods may affect reliability.
DC Electrical Characteristics
(TA = –40°C to +85°c V
CC
= 3.3V ±0.3V)
Symbol
V
OH
V
OL
V
IH
V
IL
I
IH
I
IL
V
IK
I
OH
I
OL
I
OS
V
H
Parameter
Output High Voltage
Output Low Voltage
Input High Voltage
Input Low Voltage
Input High Current
Input Low Current
Clamp Diode Voltage
Output HIGH Current
(4,5)
Output LOW Current
(4,5)
Short Circuit Current
(4,5)
Input Hysteresis
Test Condition
(1)
V
CC
= Min., V
IN
= V
IL
or V
IH
V
CC
= Min., V
IN
= V
IL
or V
IH
Min.
I
OH
= -0.1mA V
CC
- 0.2
I
OH
= -8mA
2.4
I
OH
= 0.1mA
I
OH
= 16mA
I
OH
= 24mA
2.0
-0.5
Typ.
–
3.0
–
0.2
0.3
0.2
0.4
0.5
5.5
0.8
1
-1
-0.7
-35
50
-60
-60
90
-135
150
-1.2
-110
200
-240
mV
mA
μA
V
V
Max.
Units
Guaranteed Logic HIGH Level (Input pins)
Guaranteed Logic LOW Level (Input pins)
V
CC
= Max.
V
CC
= Max.
V
CC
= Min., I
IN
= -18mA
V
OUT
= 1.5V, V
IN
=V
IL
or V
IH,
V
CC
= 3.3V
V
OUT
= 1.5V, V
IN
=V
IL
or V
IH,
V
CC
= 3.3V
V
CC
= Max., V
OUT
= GND
V
IN
= V
CC
V
IN
= GND
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, +25°C ambient and maximum loading.
3. V
OH
= V
CC
– 0.6V at rated current.
4. This parameter is determined by device characterization but is not production tested.
5. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
09-0005
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PS7010F
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PI49FCT3807
3.3V Fast CMOS Clock Driver
Power Supply Characteristics
Parameters
I
CC
ΔI
CC
Description
Quiescent Power
Supply Current
Supply Current per
Inputs @ TTL HIGH
Supply Current per
Input per MHz
(4)
Test Conditions
(1)
V
CC
= Max.
V
CC
= Max.
V
CC
= Max.,
Outputs Open
Per Output Toggling
50% Duty Cycle
V
IN
= GND
or V
CC
V
IN
= V
CC
0.6V
(3)
V
IN
= V
CC
V
IN
= GND
Min.
—
—
Typ
(2)
3
2.0
Max.
30
μA
300
mA/
MHz
Units
I
CCD
—
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at V
CC
= 3.3V, +25°C ambient.
3. Per TTL driven input (V
IN
= V
CC
– 0.6V); all other inputs at V
CC
or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the I
C
formula. These limits are guaranteed but not tested.
Capacitance
(T
A
= 25°C, f = 1 MHz)
Parameters
(1)
C
IN
C
OUT
Description
Input Capacitance
Output Capacitance
Test Conditions
V
IN
= 0V
V
OUT
= 0V
Typ
4.5
5.5
Max.
6.0
8.0
Units
pF
Notes:
1. This parameter is determined by device characterization but is not production tested.
Maximum Switching Characteristics
(Over operating range)
Symbol
Description
Test
Conditions
3807
3087A
3087B
3807C
Com.
Com.
Com.
Com.
Min. Max. Min. Max. Min. Max. Min. Max.
1.5
4.5
0.5
C
L
= 15pF
R
L
= 500Ω
0.5
1.5
4.0
0.5
0.5
1.5
3.8
0.5
0.35
1.5
3.5
0.5
0.35
ns
Units
t
PLH
t
PHL
t
SK(O)
t
SK(P)
Propagation Delay A to B
N
Skew between two outputs
of same package
(3)
Skew between opposite tran-
sitions of the same output
(t
PHL
- t
PHL
)
(3)
Skew between outputs of
different packages at the
same power supply, temp.
and speed grade
(3)
F
IN
1.0
1.0
0.75
0.75
Notes:
1. Other loading condition is described on page 4, “Test Circuits for All Outputs.”
2. These parameters are guaranteed by design.
3. Minimum propagation delay of 1.5ns is guaranteed by design.
09-0005
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PS7010F
11/16/09
PI49FCT3807
3.3V Fast CMOS Clock Driver
Phase Jitter Measurement Data
Frequency Band
12kHz-10MHz
12kHz-20MHz
Input
342
493
Output
483
642
Additive Jitter
341
411
Unit
fs
RMS
fs
RMS
Tests Circuits for All Outputs
V
CC
Switch Position
Test
Disable LOW
Enable LOW
Disable HIGH
Enable HIGH
All Other Inputs
C
L
15pF
Switch
6V
GND
Open
Pulse
Generator
f = 125MHz
50Ω
D.U.T.
09-0005
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11/16/09
PI49FCT3807
3.3V Fast CMOS Clock Driver
Switching Waveforms
Propagation Delay
3V
Input
t
PLH
Output
t
R
t
PHL
1.5V
0V
V
OH
1.5V
V
OL
Pulse Skew – t
SK
(p)
3V
Input
t
PLH
Output
t
PHL
1.5V
0V
V
OH
1.5V
V
OL
t
SK(p)
= | t
PHL
– t
PLH
|
2.0V
0.5V
t
F
Output Skew – t
SK
(o)
3V
Input
t
PLHx
Ox
t
SK(o)
Oy
t
PLHy
t
PHLy
t
SK(o)
t
PHLx
1.5V
0V
V
OH
1.5V
V
OL
V
OH
1.5V
V
OL
Package Skew – t
SK
(t)
3V
Input
t
PLH1
Package 1
Output
t
SK(t)
Package 2
Output
t
PLH2
t
PHL2
t
SK(t)
t
PHL1
1.5V
0V
V
OH
1.5V
V
OL
V
OH
1.5V
V
OL
t
SK(o)
= | t
PLHy
– t
PLHx
| or | t
PHLy
– t
PHLx
|
t
SK(t)
= | t
PLH2
– t
PLH1
| or | t
PHL2
– t
PHL1
|
09-0005
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PS7010F
11/16/09
Embedded System
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