鈥?/div>
GND/DRIVSEL*
SEL0^
10
GND
GND
BLOCK DIAGRAM
SEL
OE
VCON
Oscillator
Amplifier
w/
XIN
integrated
varicaps
XOUT
PLL
(Phase
Locked
Loop)
^: Internal pull-up
*: PLL520-06 pin 12 is output drive select (DRIVSEL)
(0 for High Drive CMOS, 1 for Standard Drive CMOS)
OUTPUT ENABLE LOGICAL LEVELS
Part #
PLL520-08
PLL520-05
PLL520-06
PLL520-07
PLL520-09
OE
State
Q
Q
0 (Default)
1
0
1 (Default)
VCON
Output enabled
Tri-state
Tri-state
Output enabled
PLL by-pass
OE input: Logical states defined by PECL levels for PLL520-08
Logical states defined by CMOS levels for PLL520-05/-06/-
07/-09
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991
www.phaselink.com
Rev 09/20/04 Page 1
GND
The PLL520-05/-06/-07/-08/-09 is a family of VCXO
ICs specifically designed to pull high frequency
fundamental crystals. Their design was optimized to
tolerate higher limits of interelectrode capacitance
and bonding capacitance to improve yield. They
achieve very low current into the crystal resulting in
better overall stability. Their internal varicaps allow
an on chip frequency pulling, controlled by the
VCON input.
XIN
XOUT
SEL2^
OE
12
13
14
15
16
1
VDD
DESCRIPTION
11
SEL1^
9
8
7
6
5
GND
CLKC
VDD
CLKT
P520-0x
2
3
4