PRELIMINARY
Integrated
Circuit
Systems, Inc.
ICS840001-32
F
EMTO
C
LOCKS
™ C
RYSTAL
-
TO
-
LVCMOS/LVTTL F
REQUENCY
S
YNTHESIZER
Type
Power
Input
Input
Power
Pullup
Description
Core supply pin.
Crystal oscillator interface. XTAL_IN is the input.
XTAL_OUT is the output.
Select input. LVCMOS/LVTTL interface levels.
Power supply ground.
No connect.
Output supply pin for REF_OUT output
Single-ended three-state reference clock output.
LVCMOS/LVTTL interface levels. 15
Ω
typical output impedance.
Output supply pin for Q output.
Single-ended clock output. LVCMOS/LVTTL interface levels.
15
Ω
typical output impedance.
Analog supply pin.
T
ABLE
1. P
IN
D
ESCRIPTIONS
Number
1, 10
2, 3
4
5, 8, 13
6, 14, 15
7
9
11
12
16
Name
V
DD
XTAL_OUT,
XTAL_IN
SEL
GND
nc
V
DDO_REF_OUT
REF_OUT
V
DDO_Q
Q
V
DDA
Unused
Power
Output
Power
Output
Power
NOTE:
Pullup
refers to internal input resistors. See Table 2, Pin Characteristics, for typical values.
T
ABLE
2. P
IN
C
HARACTERISTICS
Symbol
C
IN
C
PD
R
PULLUP
R
OUT
Parameter
Input Capacitance
Power Dissipation Capacitance
Input Pullup Resistor
Output Impedance
V
DD
, V
DDA,
V
DDO_REF_OUT,
V
DDO_Q
=
3.465V
Test Conditions
Minimum
Typical
4
8
51
15
Maximum
Units
pF
pF
kΩ
Ω
840001CK-32
www.icst.com/products/hiperclocks.html
2
REV. A NOVEMBER 23, 2005
ICS [ INTEGRATED CIRCUIT SYSTEMS ]
