1
PS8626D 05/11/05
Vee
CLK_EN
CK_SEL
CLK0
Vee
CLK1
Vcc
Vcc
Q0
nQ0
nc
Q1
nQ1
Vcc
1
2
3
4
5
6
7
14
13
12
11
10
9
8
Vee
CLK_EN
CK_SEL
CLK0
nc/Vee
CLK1
nc/Vee
nc/Vee
nc/Vcc
Vcc
Q0
nQ0
Vcc
Q1
nQ1
Q2
nQ2
Vcc
Q3
nQ3
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Pin Configuration PI6C41204/A
Description
PI6C4120x is a high-performance LVCMOS or LVTTL to LVPECL
clock buffer. The PI6C41204 is a 4 output version with 2 select-
able inputs, pin compatible with ICS8535-01. PI6C41204A is the
enhanced version with extra power and ground pins to minimize
noise and jitter. The PI6C41202 is similar to the PI6C41204 except
it has two outputs.
20-Pin
Features
Up to Four LVPECL outputs
Selectable CLK0 or CLK1 inputs
LVCMOS or LVTTL input level
30ps max output skew
150ps max part-to-part skew
1.9ns max propagation delay
266 MHz output frequency
Packaging (Pb-free & Green available):
-14-pin TSSOP
- 20-pin TSSOP
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PI6C41202
PI6C41204
PI6C41204A
LVCMOS to LVPECL Driver
14-Pin
D
LE
CLK_SEL
CLK1
CLK0
CLK_EN
Q0
nQ0
Q
Q1
nQ1
Q2
nQ2
Q3
nQ3
0
1
D
LE
CLK_SEL
CLK1
CLK0
CLK_EN
Q0
nQ0
Q
Q1
nQ1
0
1
Block Diagram PI6C41202
Block Diagram PI6C41204/A
Pin Configuration PI6C41202
2
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PS8626D 05/11/05
PI6C4120x
LVCMOS to LVPECL Driver
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P
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L
Table 1a. Pin Description for PI6C41204
Table 1b. Pin Description for PI6C41204A
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3
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PS8626D 05/11/05
PI6C4120x
LVCMOS to LVPECL Driver
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0
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=
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1
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8
,
7
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3
.
3
0
1
,
9
1
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,
1
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3
1
,
2
1
0
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Table 1c. Pin Description for PI6C41202
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S
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a
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a
P
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T
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M
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N
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1
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2
.
3
F
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7
.
2
R
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R
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8
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R
0
8
Table 2. Pin Characteristics
4
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PS8626D 05/11/05
PI6C4120x
LVCMOS to LVPECL Driver
s
t
u
p
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I
s
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p
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N
E
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*
3
Q
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*
3
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t
0
Q
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0
0
0
K
L
C
W
O
L
;
d
e
l
b
a
s
i
D
H
G
I
H
;
d
e
l
b
a
s
i
D
0
1
1
K
L
C
W
O
L
;
d
e
l
b
a
s
i
D
H
G
I
H
;
d
e
l
b
a
s
i
D
1
0
0
K
L
C
d
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l
b
a
n
E
d
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l
b
a
n
E
1
1
1
K
L
C
d
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b
a
n
E
d
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l
b
a
n
E
Table 3a. Control Input Function Table
After CLK_EN switches, the clock outputs are disabled or enabled following
a rising and falling input clock edge as shown in figure1. In the active mode, the state
of the outputs are a function of the CLK0 and CLK1 inputs as described in Table 3b.
Disabled
Enabled
CLK0, CLK1
CLK_EN
nQ0 - nQ3*
Q0 - Q3*
Figure 1. CLK_EN Timing Diagram
Table 3b. Clock Input Function Table
s
t
u
p
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I
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t
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p
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1
K
L
C
r
o
0
K
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*
3
Q
u
r
h
t
0
Q
*
3
Q
n
u
r
h
t
0
Q
n
0
W
O
L
H
G
I
H
1
H
G
I
H
W
O
L
Note:
*PI6C41204 and PI6C41204A have four differential outputs. Q0 through Q3 and nQ0 through nQ3.
PI6C41202 has two differential outputs. Q0 through Q1 and nQ0 through nQ1.
5
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PS8626D 05/11/05
PI6C4120x
LVCMOS to LVPECL Driver
Table 4b. LVCMOS/LVTTL DC Characteristics, (V
CC
=
3.3V 5%, T
A
= 0C to +70C)
l
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b
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o
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1
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,
0
K
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C
2
5
6
7
.
3
V
N
E
_
K
L
C
L
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S
_
K
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2
5
6
7
.
3
V
L
I
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g
a
tl
o
V
w
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L
t
u
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n
I
1
K
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C
,
0
K
L
C
3
.
0
--
8
.
0
N
E
_
K
L
C
L
E
S
_
K
L
C
3
.
0
--
8
.
0
I
H
I
t
n
e
r
r
u
C
h
g
i
H
t
u
p
n
I
1
K
L
C
,
0
K
L
C
L
E
S
_
K
L
C
V
N
I
= V
C
C
V
5
6
4
.
3
=
0
5
1
A
N
E
_
K
L
C
V
N
I
= V
C
C
V
5
6
4
.
3
=
5
I
L
I
t
n
e
r
r
u
C
w
o
L
t
u
p
n
I
1
K
L
C
,
0
K
L
C
L
E
S
_
K
L
C
V
N
I
,
V
0
=
V
C
C
V
5
6
4
.
3
=
5
--
N
E
_
K
L
C
V
N
I
,
V
0
=
V
C
C
V
5
6
4
.
3
=
0
5
1
--
Storage Temperature ...................................................................65C to +150C
Ambient Temperature with Power Applied .................................. 40C to +85C
Supply Voltage, V
CC ..................................................................................................
+4.6V
Input/Output Voltage ........................................................... 0.5V to V
CC
+ 0.5V
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
specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may
affect reliability.
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested)
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
.
n
i
M
.
p
y
T
.
x
a
M
s
t
i
n
U
V
C
C
e
g
a
tl
o
V
y
l
p
p
u
S
5
3
1
.
3
3
.
3
5
6
4
.
3
V
I
E
E
t
n
e
r
r
u
C
y
l
p
p
u
S
0
5
A
m
T
A
e
r
u
t
a
r
e
p
m
e
T
t
n
e
i
b
m
A
0
0
7
C
Table 4a. Operating Conditions (Commercial)
6
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PS8626D 05/11/05
PI6C4120x
LVCMOS to LVPECL Driver
Table 5. AC Characteristics, (V
CC
=
3.3V 5%, T
A
= 0C to +70C (Note 3)
Notes:
3. All parameters measured at 266MHz unless noted otherwise. The part does not add jitter.
4. Measured from the V
DD
/2 point of the input to the differential output crossing point.
5. Defined as skew between outputs at the same supply voltage and with equal load conditions.
Measured at the output crossing points differential.
6. Defined as skew between outputs on different devices operating at the same supply voltages and
with equal load conditions. Measured at the output crossing points differential.
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
.
n
i
M
.
p
y
T
.
x
a
M
s
t
i
n
U
f
X
A
M
y
c
n
e
u
q
e
r
F
t
u
p
n
I
m
u
m
i
x
a
M
6
6
2
z
H
M
t
H
L
P
:
h
g
i
H
o
t
w
o
L
y
a
l
e
D
n
o
i
t
a
g
a
p
o
r
P
4
e
t
o
N
V
C
C
V
o
t
X
O
0
.
1
9
.
1
s
n
t
L
H
P
:
w
o
L
o
t
h
g
i
H
y
a
l
e
D
n
o
i
t
a
g
a
p
o
r
P
4
e
t
o
N
V
C
C
V
o
t
X
O
0
.
1
9
.
1
)
o
(
s
t
5
e
t
o
N
:
w
e
k
S
t
u
p
t
u
O
1
1
0
3
s
p
)
p
p
(
k
s
t
6
e
t
o
N
:
w
e
k
S
t
r
a
P
o
t
t
r
a
P
0
5
1
t
C
D
e
l
c
y
C
y
t
u
D
t
u
p
t
u
O
8
4
0
5
2
5
%
t
/
r
t
f
e
m
i
t
ll
a
F
/
e
s
i
R
t
u
p
t
u
O
%
0
8
o
t
%
0
2
0
0
1
0
0
4
s
p
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
.
n
i
M
.
p
y
T
.
x
a
M
s
t
i
n
U
V
H
O
e
g
a
tl
o
V
h
g
i
H
t
u
p
t
u
O
1
e
t
o
N
V
C
C
4
.
1
-
V
C
C
0
.
1
-
V
V
L
O
e
g
a
tl
o
V
w
o
L
t
u
p
t
u
O
1
e
t
o
N
V
C
C
0
.
2
-
V
C
C
7
.
1
-
V
G
N
I
W
S
t
u
p
t
u
O
k
a
e
P
-
o
t
-
k
a
e
P
g
n
i
w
S
e
g
a
tl
o
V
6
.
0
5
8
.
0
Table 4c. LVPECL DC Characteristics (V
CC
=
3.3V 5%, T
A
= 0C to +70C)
Note:
1. Outputs terminated with 50ohm to V
CC
- 2V
7
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PS8626D 05/11/05
PI6C4120x
LVCMOS to LVPECL Driver
Table 5b. LVCMOS/LVTTL DC Characteristics, (V
CC
=
3.3V 5%, T
A
= 40C to +85C)
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
.
n
i
M
.
p
y
T
.
x
a
M
s
t
i
n
U
V
H
I
e
g
a
tl
o
V
h
g
i
H
t
u
p
n
I
1
K
L
C
,
0
K
L
C
2
5
6
7
.
3
V
N
E
_
K
L
C
L
E
S
_
K
L
C
2
5
6
7
.
3
V
L
I
e
g
a
tl
o
V
w
o
L
t
u
p
n
I
1
K
L
C
,
0
K
L
C
3
.
0
--
8
.
0
N
E
_
K
L
C
L
E
S
_
K
L
C
3
.
0
--
8
.
0
I
H
I
t
n
e
r
r
u
C
h
g
i
H
t
u
p
n
I
1
K
L
C
,
0
K
L
C
L
E
S
_
K
L
C
V
N
I
= V
C
C
V
5
6
4
.
3
=
0
5
1
A
N
E
_
K
L
C
V
N
I
= V
C
C
V
5
6
4
.
3
=
5
I
L
I
t
n
e
r
r
u
C
w
o
L
t
u
p
n
I
1
K
L
C
,
0
K
L
C
L
E
S
_
K
L
C
V
N
I
,
V
0
=
V
C
C
V
5
6
4
.
3
=
5
--
N
E
_
K
L
C
V
N
I
,
V
0
=
V
C
C
V
5
6
4
.
3
=
0
5
1
--
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
.
n
i
M
.
p
y
T
.
x
a
M
s
t
i
n
U
V
C
C
e
g
a
tl
o
V
y
l
p
p
u
S
5
3
1
.
3
3
.
3
5
6
4
.
3
V
I
E
E
t
n
e
r
r
u
C
y
l
p
p
u
S
0
5
A
m
T
A
e
r
u
t
a
r
e
p
m
e
T
t
n
e
i
b
m
A
0
4
5
8
C
Table 5a. Operating Conditions (Industrial)
8
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PS8626D 05/11/05
PI6C4120x
LVCMOS to LVPECL Driver
Table 6. AC Characteristics, (V
CC
=
3.3V 5%, T
A
= 40C to +85C, See Note 3)
Notes:
3. All parameters measured at 266MHz unless noted otherwise. The part does not add jitter.
4. Measured from the V
DD
/2 point of the input to the differential output crossing point.
5. Defined as skew between outputs at the same supply voltage and with equal load conditions.
Measured at the output crossing points differential.
6. Defined as skew between outputs on different devices operating at the same supply voltages and
with equal load conditions. Measured at the output crossing points differential.
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
.
n
i
M
.
p
y
T
.
x
a
M
s
t
i
n
U
f
X
A
M
y
c
n
e
u
q
e
r
F
t
u
p
n
I
m
u
m
i
x
a
M
6
6
2
z
H
M
t
H
L
P
:
h
g
i
H
o
t
w
o
L
y
a
l
e
D
n
o
i
t
a
g
a
p
o
r
P
4
e
t
o
N
V
C
C
V
o
t
X
O
0
.
1
9
.
1
s
n
t
L
H
P
:
w
o
L
o
t
h
g
i
H
y
a
l
e
D
n
o
i
t
a
g
a
p
o
r
P
4
e
t
o
N
V
C
C
V
o
t
X
O
0
.
1
9
.
1
)
o
(
s
t
5
e
t
o
N
:
w
e
k
S
t
u
p
t
u
O
1
1
0
0
1
s
p
)
p
p
(
k
s
t
6
e
t
o
N
:
w
e
k
S
t
r
a
P
o
t
t
r
a
P
0
5
1
t
C
D
e
l
c
y
C
y
t
u
D
t
u
p
t
u
O
5
4
0
5
5
5
%
t
/
r
t
f
e
m
i
t
ll
a
F
/
e
s
i
R
t
u
p
t
u
O
%
0
8
o
t
%
0
2
0
0
1
0
0
4
s
p
l
o
b
m
y
S
r
e
t
e
m
a
r
a
P
s
n
o
i
t
i
d
n
o
C
t
s
e
T
.
n
i
M
.
p
y
T
.
x
a
M
s
t
i
n
U
V
H
O
e
g
a
tl
o
V
h
g
i
H
t
u
p
t
u
O
1
e
t
o
N
V
C
C
4
.
1
-
V
C
C
0
.
1
-
V
V
L
O
e
g
a
tl
o
V
w
o
L
t
u
p
t
u
O
1
e
t
o
N
V
C
C
0
.
2
-
V
C
C
7
.
1
-
V
G
N
I
W
S
t
u
p
t
u
O
k
a
e
P
-
o
t
-
k
a
e
P
g
n
i
w
S
e
g
a
tl
o
V
6
.
0
5
8
.
0
Table 5c. LVPECL DC Characteristics (V
CC
=
3.3V 5%, T
A
= 40C to +85C)
Note:
1. Outputs terminated with 50ohm to V
CC
- 2V
9
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PS8626D 05/11/05
PI6C4120x
LVCMOS to LVPECL Driver
LVPECL
VEE = -1.3V 0.165V
Z = 50-Ohm
Z = 50-Ohm
50-Ohm
50-Ohm
nQx
Qx
VCC = 2V
VCC
SCOPE
Qx
nQx
Qy
nQy
tsk(0)
Figure2. 2-3.3V Output Load Test Circuit
Figure 3. Output Skew
Qx
nQx
Qy
nQy
tsk(0)
Part 1
Part 2
Figure 4. Part-to-Part Skew
20%
20%
80%
80%
Clock Inputs
and Outputs
t
R
V
SWING
t
F
Figure 5. Input and Output Rise and Fall Time
CLK0, CLK1
Q0, Q3
nQ0, nQ3
t
PD
Figure 6. Propagation Delay
odc =
Q0, Q3
nQ0, nQ3
t
PERIOD
Pulse Width
t
PW
t
PERIOD
Figure 7. odc & t
PERIOD
1 0
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PS8626D 05/11/05
PI6C4120x
LVCMOS to LVPECL Driver
0.193
0.201
0.047
0.002
0.006
SEATING
PLANE
0.0256
typical
0.018
0.030
0.004
0.008
0.240
0.264
1
14
0.169
0.177
0.05
0.15
6.1
6.7
0.45
0.75
0.09
0.20
4.3
4.5
1.20
max.
4.90
5.10
0.65
0.19
0.30
0.007
0.012
Packaging Mechanical: 14-Pin TSSOP (L)
1 1
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PS8626D 05/11/05
PI6C4120x
LVCMOS to LVPECL Driver
.252
.260
.047
1.20
.002
.006
SEATING
PLANE
.0256
BSC
.018
.030
.004
.008
.238
.269
1
20
.169
.177
0.05
0.15
6.1
6.7
0.45
0.75
0.09
0.20
4.3
4.5
6.4
6.6
0.65
0.19
0.30
.007
.012
Max
Packaging Mechanical: 20-Pin TSSOP (L)
Notes:
1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
Ordering Information
Ordering Code
Package Code
Package Type
Operating Temperature
PI6C41202L
L
14-pin1 73-mil TSSOP
Commercial
PI6C41202LE
L
Pb-free & Green, 14-pin1 73-mil TSSOP
Commercial
PI6C41204L
L
20-pin 173-mil TSSOP
Commercial
PI6C41204LE
L
Pb-free & Green, 20-pin 173-mil TSSOP
Commercial
PI6C41204LI
L
20-pin 173-mil TSSOP
Industrial
PI6C41204LIE
L
Pb-free & Green, 20-pin 173-mil TSSOP
Industrial
PI6C41204AL
L
20-pin 173-mil TSSOP
Commercial
PI6C41204ALE
L
Pb-free & Green, 20-pin 173-mil TSSOP
Commercial
Pericom Semiconductor Corporation 1-800-435-2336 www.pericom.com
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