WP413812 S LAMU Intel, WP413812 S LAMU Datasheet - Page 70

• Manufacturer Part Number: WP413812 S LAMU
• Manufacturer: Intel

Specifications of WP413812 S LAMU

• Lead Free Status / RoHS Status: Compliant

T a b l e 2 1 .
N o t e :
I n t e l
D a t a s h e e t
7 0
®
4 1 3 8 0 8 a n d I n t e l
P C I E x p r e s s * C l o c k T i m i n g s
a .
b. Measured at crossing point where the instantaneous voltage value of the rising edge of REFCLK equals the
c. Measured from V
d. Measurement taken from single-ended waveform.
e. This measurement refers to the total variation from the lowest crossing point to the highest, regardless of which
f. Measurement taken from differential waveform.
g .
h.
V
V
i. The crossing point must meet the absolute and relative crossing point specifications simultaneously.
j. V
k. V
l. Overshoot is defined as the absolute value of the maximum voltage.
m. Undershoot is defined as the absolute value of the minimum voltage.
S e e
T i m i n g s ( F l a s h ) ” o n p a g e 8 1
T F 2
T C 2
D F 0
T C C J
T P P J
D c
T r i s e
T f a l l
T v r i s e
T v f a l l
V c a
V c r
T v c
V h i
V l i
V r b
V o v s
V u d s
CROSS
CROSS
S y m b o l
The average period over any 1 µs period of time must be greater than the minimum specified period.
falling edge of REFCLK#.
must be monotonic through the V
edge is crossing.
∆V
This is the maximum allowed variance in V
function.
function.
HIGH
LOW
F i g u r e 2 1 , “ P B I O u t p u t T i m i n g s ” o n p a g e 8 0
®
CROSS
4 1 3 8 1 2 S A S / S A T A I / O C o n t r o l l e r s i n T P E R M o d e
(rel) Min = 0.5 (V
(rel) Max = 0.5 (V
V
CROSS
is defined as the statistical average Low value as obtained by using the Oscilloscope V
is defined as the statistical average High value as obtained by using the Oscilloscope V
P C I E x p r e s s * C l o c k F r e q u e n c y
P C I E x p r e s s * C l o c k C y c l e T i m e
F r e q u e n c y V a r i a t i o n
C y c l e t o C y c l e J i t t e r
P e a k t o P e a k J i t t e r ( 5 – 5 0 M H z )
C l o c k D u t y C y c l e
R E F C L K R i s e T i m e
R E F C L K F a l l T i m e
R E F C L K R i s e T i m e V a r i a t i o n
R E F C L K F a l l T i m e V a r i a t i o n
R i s e - F a l l M a t c h i n g
A b s o l u t e C r o s s P o i n t
R e l a t i v e C r o s s P o i n t
T o t a l V a r i a t i o n o f V c o v e r a l l e d g e s
R i s i n g E d g e R i n g b a c k
F a l l i n g E d g e R i n g b a c k
H i g h L e v e l V o l t a g e
L o w L e v e l V o l t a g e
R i n g b a c k V o l t a g e
M a x i m u m O v e r s h o o t
M i n i m u m U n d e r s h o o t
is defined as the total variation of all crossing voltages of Rising REFCLK and Falling REFCLK#.
(rel) Min and Max are derived using the following:
OL
= 0.175 V to V
havg
P a r a m e t e r
havg
- 0.710) + 0.250
- 0.710) + 0.550
.
OL
OH
to V
= 0.525 V. Valid only for rising REFCLK and falling REFCLK#. Signal
OH
CROSS
region for T
9 . 8 7 2
- 3 0 0
4 5
1 7 5
1 7 5
0 . 2 5
C a l c
0 . 5 6
0 . 6 6
- 0 . 1 5
for any particular system.
I n t e l
M i n .
RISE
®
4 1 3 8 0 8 a n d 4 1 3 8 1 2 — E l e c t r i c a l S p e c i f i c a t i o n s
a n d
1 0 0
0 . 7 1
0
and T
N o m .
F i g u r e 2 2 , “ P B I E x t e r n a l D e v i c e
FALL
.
3 0 0
1 2 5
5 0
5 5
3 5 0
3 5 0
1 2 5
1 2 5
2 0
0 . 5 5
C a l c
0 . 1 4
0 . 2 5
0 . 8 5
0 . 1 5
0 . 1 0
V h i + 0 . 3 V
- 0 . 3 0
M a x .
O r d e r N u m b e r : 3 1 7 8 0 6 - 0 0 1 U S
M H z
n s
p p m
p s
p s
%
p s
p s
p s
p s
%
V
V
V
V
V
V
V
V
U n i t s
a
b
b
b
h
g
A b s o l u t e M i n .
A b s o l u t e
M a x .
f
f
f
f
f
,
,
,
,
,
,
,
,
O c t o b e r 2 0 0 7
j
k
l
m
c
c
e
i
,
,
,
N o t e s
HIGH
d
d
LOW
f
,
g
Math
Math