ics841s04 Integrated Device Technology, ics841s04 Datasheet - Page 11

• Manufacturer Part Number: ics841s04
• Description: Programmable Low-jitter Xtal Or Lvcmos-input Hcsl-output 4-output 100-mhz Clock Synthesizer
• Manufacturer: Integrated Device Technology

R
I
LVCMOS C
All control pins have internal pull-ups or pull-downs; additional
resistance is not required but can be added for additional
protection. A 1k
IDT
O
The ICS841S04I outputs are HCSL current drive with the cur-
rent being set with a resistor from I
pc board trace, the drive current would typically be set with a
R
multiplied by a current mirror to an output drive of 6*2.32mA
or 13.92mA. See Figure 3 for current mirror and output drive
details.
NPUTS
REF
ECOMMENDATIONS FOR
ICS841S04I
PCI EXPRESS™ CLOCK GENERATOR
UTPUT
™
F
/ ICS
of 475
IGURE
:
™
D
PCI EXPRESS™ CLOCK GENERATOR
ONTROL
3. HCSL C
RIVER
which products an I
I
REF
R
REF
resistor can be used.
P
C
INS
URRENT
URRENT
U
NUSED
R
L
M
IRROR AND
REF
I
REF
NPUT AND
of 2.32mA. The I
to ground. For a 50
R
O
L
UTPUT
O
UTPUT
D
RIVE
REF
P
INS
is
11
O
D
All unused differential outputs can be left floating. We recommend
that there is no trace attached. Both sides of the differential output
pair should either be left floating or terminated.
IFFERENTIAL
UTPUTS
:
O
UTPUT
s
ICS841S04BGI REV. C MAY 23, 2007
PRELIMINARY