ICS86004-02 Datasheet, PDF (1/10 Pages) Integrated Device Technology – 62.5MHZ TO 250MHZ, 1-TO-4 LVCMOS/LVTTL ZERO DELAY CLOCK BUFFER

PRELIMINARY
62.5MHZ TO 250MHZ, 1-TO-4 LVCMOS/
LVTTL ZERO DELAY CLOCK BUFFER
GENERAL DESCRIPTION
The ICS86004-02 is a high performance 1-to-4
ICS
LVCMOS/LVTTL Clock Buffer and a member of
HiPerClockS™ _{the HiPerClockS™family of High Performance Clock}
Solutions from IDT. The ICS86004-02 has a fully
integrated PLL and can be configured as zero
delay buffer and has an input and output frequency range of
62.5MHz to 250MHz. The external feedback allows the device
to achieve “zero delay” between the input clock and the output
clocks. The PLL_SEL pin can be used to bypass the PLL for
system test and debug purposes. In bypass mode, the refer-
ence clock is routed around the PLL and into the internal out-
put divider.
ICS86004-02 has a special feature that when CLK is LOST, it
will disable the output to logic LOW.
CONTROL INPUT FUNCTION TABLE
Input
F_SEL
0
1
Input/Output
Frequency Range (MHz)
Minimum Maximum
125
250
62.5
125
ICS86004-02
FEATURES
• Four LVCMOS/LVTTL outputs, 7Ω typical output impedance
• Single LVCMOS/LVTTL clock input
• CLK accepts the following input levels: LVCMOS or LVTTL
• Output frequency range: 62.5MHz to 250MHz
• Input frequency range: 62.5MHz to 250MHz
• External feedback for “zero delay” clock regeneration
with configurable frequencies
• Fully integrated PLL
• Cycle-to-cycle jitter, (F_SEL = 1): 35ps (typical)
• Output skew: 45ps (typical)
• Supply Voltage Modes:
(Core/Output)
3.3V/3.3V
3.3V/2.5V
• 5V tolerant input
• 0°C to 70°C ambient operating temperature
• Available in both standard (RoHS 5) and lead-free (RoHS 6)
compliant packages
BLOCK DIAGRAM
PLL_SEL ^Pullup
÷8
0
CLK ^Pulldown
FB_IN ^Pulldown
1
PLL
0
1:1
1
MR ^Pulldown
F_SEL ^Pulldown
PIN ASSIGNMENT
Q0
Q1 1
16 VDDO
GND 2 15 Q2
Q0 3 14 GND
Q1
F_SEL 4 13 Q3
VDD 5
12 VDDO
CLK 6 11 MR
Q2
GND 7 10 FB_IN
VDDA 8
9 PLL_SEL
Q3
ICS86004-02
16-Lead TSSOP
4.4mm x 5.0mm x 0.92mm package body
G Package
Top View
LOSS Reference Detect
The Preliminary Information presented herein represents a product in pre-production.The noted characteristics are based on initial product characterization
and/or qualification. Integrated Device Technology, Incorporated (IDT) reserves the right to change any circuitry or specifications without notice.
IDT^™ / ICS^™ LVCMOS/LVTTL ZERO DELAY CLOCK BUFFER
1
ICS86004AG-02 REV A NOVEMBER 3, 2006