21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
1
2109876543212109876543210987654321098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI6CV304 / PI6CV2304
160 MHz Clock Buffers
Features
•
•
•
•
•
•
•
•
160 MHz operation
Low noise, low skew: 150ps max
Fast rise/fall time: 1.0ns typ.
Fast propagation delay: 2.0ns typ.
5V I/O tolerant input
Industrial temperature (–40°C to 85°C)
3.3V power supply
Packaging (Pb-free & Green available)
– 8-pin TSSOP (L)
– 8-pin SOIC (W)
Description
Pericom’s PI6CV304 and PI6CV2304 are low-skew, low- noise, high-
speed clock buffers and are ideal for computing, networking, and
communication applications. Application examples include PCI(X)
clock buffers in servers and workstations, PCI(X) Storage Area
Network (SAN), and RAID controllers. They are used for networking
and communications applications requiring 80 MHz for 10/100 Mbps
Ethernet and 125 MHz for Gigabit networking clocks.
To reduce EMI emission and power consumption, all outputs can be
disabled to 3-state by asserting a low signal to the OE (Output
Enable) pin.
PI6CV2304 output impedance is 30-ohms. PI6CV304 output imped-
ance is 20-ohms.
Applications
• 33 MHz PCI-to-133 MHz PCIX controllers
• 80 MHz for 10/100 Mbps Ethernet
• 125 MHz for Gigabit networking
• 155 MHz for Optical OC3/SDH/SONET
Function Table
Inputs
CLK_IN
X
L
H
OE
L
H
H
Output
Y[0:3]
Z
L
H
Block Diagram
Pin Configuration
Y0
CLK_IN
Y1
1
2
3
4
8
7
6
5
Y3
Y2
VDD
Y1
OE
Y0
Y2
OE
CLK_IN
Y3
GND
1
PS8537D
09/14/043
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI6CV304 / PI6CV2304
160 MHz Clock Buffers
Pin Description
Pin #
1
2
3,5,7,8
4
6
Symbol
CLK_IN
OE
Y[0- 3]
GND
V
DD
Type
Input
Input
Output
Ground
Power
Qty
1
1
4
1
1
5V Tolerant clock input
Active High Output Enable. Y[0- 3] outputs will be 3- stated when OE is low
LVCMOS level outputs
Ground
3.3V power
De s cription
Absolute Maximum Ratings
(Above which the useful life may be impaired. For user guidlines, not tested)
Supply Voltage (V
DD
)
Input Voltage
Industrial Operating Temperature
Storage Temperature
Junction Temperature
Input ESD MIL- 883, method 3015, human body model
–0.0V to +5.0V
–0.5V to V
DD
+0.5V
–40°C to +85°C
–65°C to +150°C
150°C
2K V
Operating Conditions
Symbol
V
DD
T
A
De s cription
I/O Supply, Analog Core Supply
Industrial Ambient Temperature
M in
3.0
–40
M ax
3.6
+85
Unit
V
°C
2
PS8537D
09/14/043
PI6CV304 DC Characteristics Over Operating Conditions
Symbol
V
IL
V
IH
I
IL
I
IH
V
O L
V
O H
C
O
CI
Parame te r
Low Input Voltage
High Input Voltage
Low Input Current
High Input Current
Low Output Voltage
High Output Voltage
Output Capacitance
Input Capacitance
C
L
= 33pF/33MHz
C
L
= 33pF/66MHz
I
DD
Supply Current
C
L
= 22pF/80MHz
C
L
= 15pF/100MHz
C
L
= 10pF/125MHz
C
L
= 10pF/155MHz
Z
O
L
Output Impedance
Pin Inductance
20
40
35
32
28
41
20
7
Ω
nH
mA
V
IN
= 0V
V
IN
= V
C C
V
C C
= 3.0V, I
O L
= 12mA
V
C C
= 3.0V, I
O H
= –12mA
2.4
7
5
2.0
–5
5
0.4
Conditions
M in
Typ.
M ax
0.8
Units
V
µA
V
pF
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI6CV304 / PI6CV2304
160 MHz Clock Buffers
PI6CV304 AC Characteristics
(T
A
= –40~85°C,V
CC
= 3.3V ±0.3V, 33pF/66MHz and 10pF/160MHz)
Symbol
f
IN
t
P LH
t
P HL
t
S K (O )
t
S K (P )
t
S K (T)
t
R
,t
F
t
P ZL
,t
P ZH
t
P LZ
,t
P HZ
t
DC
Input frequency
Low- to- high propagation delay
High- to- low propagation delay
Output skew
(2)
Pulse skew
Package skew
(1)
Rise, Fall time
Output enable time
Output disable time
Output Duty Cycle
t
DC
= t
H
/t
C Y
, t
H
= High Pulse Width,
t
C Y
= Output Cycle Time, @ 1.5V
45
CLK_IN to Y[0- 3] rising edges @ 1.5V
CLK_IN to Y[0- 3] falling edges @ 1.5V
@ 1.5V
@ 1. 5 V
@ 1.5V
0.8V~2.0V
Parame te r
Conditions
M in.
0
1. 0
1.0
Typ.
M ax.
160
3.0
3.0
100
300
500
1.2
5
10
55
%
ns
ps
Units
MHz
ns
Note:
1. Identical traces, loads, power supply.
2. Maximum Output Skew is 100ps when frequency is below 125MHz with 10pF loading.
3
PS8537D
09/14/043
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI6CV304 / PI6CV2304
160 MHz Clock Buffers
PI6CV2304 DC Characteristics Over Operating Conditions
Symbol
V
IL
V
IH
I
IL
I
IH
V
OL
V
OH
Parame te r
Low Input Voltage
High Input Voltage
Low Input Current
High Input Current
Low Output Voltage
High Output Voltage
V
IN
= 0V
V
IN
= V
CC
V
CC
= 3.0V, I
OL
= 8 mA
V
CC
= 3.0V, I
OH
= - 8mA
C
L
= 33pF/33MHz
C
L
= 33pF/66MHz
I
DD
Supply Current
C
L
= 22pF/80MHz
C
L
= 15pF/100MHz
C
L
= 10pF/125MHz
C
O
C
I
Z
O
L
Output Capacitance
Input Capacitance
Output Impedance
Pin Inductance
30
7
2.4
20
41
35
34
31
7
5
pF
Ω
nH
mA
2.0
–5 0
200
0.4
Conditions
M in.
Typ.
M a x.
0.8
Units
V
µA
V
PI6CV2304 AC Characteristics
(T
A
= –40~85°C, V
CC
= 3.3V ±0.3V, 33pF/66MHz and 10pF/133MHz)
Symbol
f
IN
t
P LH
t
P HL
t
S K (O )
t
S K (P )
t
S K (T)
t
R
,t
F
t
P ZL
,t
P ZH
t
P LZ
,t
P HZ
t
DC
Parame te r
Input frequency
Low- to- high propagation delay
High- to- low propagation delay
Output skew
Pulse skew
Package skew
(1)
Rise, Fall time
Output enable time
Output disable time
Output duty cycle
t
DC
= t
H
/t
C Y
, t
H
= High Pulse Width,
t
C Y
= Output Cycle Time, @ 1.5V
45
CLK_IN to Y[0- 3] rising edges @ 1.5V
CLK_IN to Y[0- 3] falling edges @ 1.5V
@ 1. 5 V
@ 1.5V
@ 1.5V
0.8V~2.0V
Conditions
M in.
0
1.0
1.0
Typ.
M ax.
133
3.0
3.0
150
300
500
1.35
5
10
55
%
ns
ps
Units
MHz
ns
Note:
1. Identical traces, loads, power supply.
4
PS8537D
09/14/043
tr
tf
Vol
Note:
For test circuit: R
S
= 0 for PI6CV2304, R
S
= 15 ohms for PI6CV304
C
L
= 10, 15, 22, or 33pF, depending on frequency.
V
oh
- V
V
ol
- V
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI6CV304 / PI6CV2304
160 MHz Clock Buffers
Rise/Fall Time
Voh
2.0V
2.0V
High-Level Output Voltage
vs. High-Level Output Current
VCC = 3.0V
TA = 25˚C
0.8V
0.8V
3.5
3
2.5
2
1.5
1
0.5
0
–100
–80
PI6CV304
PI6CV2304
–60
–40
I
oh
- mA
–20
0
Low-Level Output Voltage
vs. Low-Level Output Current
VCC = 3.0V
TA = 25˚C
3.5
3
2.5
2
1.5
1
0.5
0
0
20
PI6CV304
PI6CV2304
40
60
I
oh
- mA
80
100
5
PS8537D
09/14/043
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