ics87951 Integrated Device Technology, ics87951 Datasheet - Page 7

• Manufacturer Part Number: ics87951
• Description: Differential Or Lvcmos-input Lvcmos-output 2 9 180-mhz Clock Generator
• Manufacturer: Integrated Device Technology

87951AYI
C
O
3.3V O
O
QCx,
-1.65V±5%
QDx
YCLE
UTPUT
UTPUT
QA,
QB,
QCx,
1.65V±5%
GND
V
V
Clock
Outputs
QDx
LVCMOS
QA,
QB,
DDA
DDO
-
,
TO
UTPUT
D
R
-C
UTY
0.8V
ISE
YCLE
V
/F
C
DDO
L
V
odc =
2
YCLE
ALL
DDO
Integrated
Circuit
Systems, Inc.
OAD
2
J
t
t
cycle n
ITTER
T
t
jit(cc) =
t
/P
PW
2V
PERIOD
AC T
IME
t
t
PW
ULSE
R
EST
W
1000 Cycles
P
t
t
cycle n –
IDTH
PERIOD
ARAMETER
C
IRCUIT
/P
V
DDO
V
2
ERIOD
DDO
2
t
cycle n+1
t
cycle n+1
www.icst.com/products/hiperclocks.html
Qx
t
2V
F
D
IFFERENTIAL
SCOPE
M
0.8V
EASUREMENT
V
DDO
2
V
DDO
2
7
-
TO
O
P
D
EXT_FB
HASE
IFFERENTIAL
UTPUT
nCLK1
Qx
Qy
CLK0,
-LVCMOS/LVTTL Z
CLK1
nCLK1
CLK1
(where t(Ø) is any random sample, and t(Ø)
of the sampled cycles measured on controlled edges)
GND
V
J
DD
ITTER AND
S
KEW
I
NFORMATION
V
t(Ø)
V
I
DDO
2
PP
NPUT
tjit(Ø) = t(Ø) — t(Ø)
V
DDO
2
tsk(o)
t(Ø)
S
L
TATIC
EVEL
mean
P
= Static Phase Offset
HASE
Cross Points
mean
O
ERO
L
FFSET
OW
= Phase Jitter
ICS87951I
D
S
REV. B NOVEMBER 23, 2005
ELAY
KEW
mean
is the average
, 1-
V
B
CMR
UFFER
TO
V
V
V
V
V
OH
OL
-9
OH
DDO
OL
2