PLL502-50 Datasheet, PDF (1/4 Pages) PhaseLink Corporation – VCXO IC Die for 20 to 52MHz Parallel Resonant Crystals

PLL502-50
VCXO IC Die for 20 to 52MHz Parallel Resonant Crystals
FEATURES
• Integrated voltage-controlled crystal oscillator
circuitry (VCXO) (pull range 380ppm minimum).
• Selectable frequency dividers (x1, 1/2, 1/4, 1/8)
available as bonding options.
• VCXO tuning range: 0.3V - 3.0V.
• Uses inexpensive fundamental-mode parallel
resonant crystals (from 20 to 52MHz).
• 2.5V or 3.3V supply voltage.
• Selectable High Drive (30mA) or Standard Drive
(10mA) CMOS output.
• Available in DIE (65 mil x 62 mil).
DESCRIPTION
The PLL502-50 is a monolithic low jitter, high
performance CMOS VCXO IC Die. It allows the
control of the output frequency with an input voltage
(VCON), using a low cost crystal.
The same die can be used as a VCXO with output
frequencies ranging from F_XIN x 1 to F_XIN / 8 thanks
to selector pads allowing bonding options (see
Divider Selection Table on this page). This makes
the PLL502-50 ideal for a wide range of applications
from 2.5MHz to 52MHz (including 27MHz,
35.328MHz, etc.).
BLOCK DIAGRAM
XIN
VCON
VCXO
Selectable
Divider
CLK
DIE SPECIFICATIONS
Name
Size
Reverse side
Pad dimensions
Thickness
Value
62 x 65 mil
GND
80 micron x 80 micron
10 mil
DIE CONFIGURATION
65 mil
(1550,1475)
25
23
21
20
19
18
Die ID:
A0303-03J
XIN 27
XOUT 29
13 CLK
VCON 31
C502A
10 GND
7
Y
(0,0)
X
Note: ^ denotes internal pull up
V _{denotes internal pull down}
DIVIDER SELECTION
SELECTION
S2 S1 S0
000
001
010
011
100
101
110
111
FXIN
20MHz – 52MHz
CLK (MHz)
FXIN x 1
FXIN ÷ 2
FXIN ÷ 4
FXIN x 1*
FXIN ÷ 8
FXIN ÷ 4*
FXIN ÷ 2*
FXIN ÷ 8*
Note: Selector pads default to ‘0’, wire bond to VDD to set to ‘1’
(*) High-drive CMOS output
PAD DESCRIPTIONS
Name
XIN
XOUT
VCON
GND
CLK
S[0:2]
VDD
OE
Number
27
29
31
7,10
13
18,19,20
21,22,23
25
Description
Crystal input connection.
Crystal output connection.
Voltage Control input.
Ground.
Clock output.
Frequency selection pad
Power supply.
Output Enable: ‘0’ to disable
(tri-state output), 1’ (default
value when not connected) to
enabled the output.
47745 Fremont Blvd., Fremont, California 94538 Tel [phone] Fax [phone] www.phaselink.com Rev 09/17/04 Page 1