PLL502-50
VCXO IC Die for 20 to 52MHz Parallel Resonant Crystals
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/17/04 Page 1
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
DIE SPECIFICATIONS
Name Value
Size
62 x 65 mil
Reverse side
GND
Pad dimensions
80 micron x 80 micron
Thickness 10
mil
DIE CONFIGURATION
DIVIDER SELECTION
SELECTION
S2 S1 S0
F
XIN
CLK
(MHz)
0 0 0
F
XIN
x 1
0 0 1
F
XIN
2
0 1 0
F
XIN
4
0 1 1
F
XIN
x 1*
1 0 0
F
XIN
8
1 0 1
F
XIN
4*
1 1 0
F
XIN
2*
1 1 1
20MHz 52MHz
F
XIN
8*
Note: Selector pads default to `0', wire bond to VDD to set to `1'
(*) High-drive CMOS output
PAD DESCRIPTIONS
Name Number
Description
XIN
27
Crystal input connection.
XOUT 29 Crystal
output
connection.
VCON 31 Voltage
Control
input.
GND 7,10
Ground.
CLK 13
Clock
output.
S[0:2] 18,19,20 Frequency
selection
pad
VDD 21,22,23
Power
supply.
OE 25
Output Enable: `0' to disable
(tri-state output), 1' (default
value when not connected) to
enabled the output.
VCON
XIN
VCXO
CLK
Selectable
Divider
18
19
20
21
23
25
7
13
10
27
29
31
Y
X
(0,0)
(1550,1475)
62
m
i
l
65 mil
GND
CLK
GND
VCON
XOUT
XIN
OE^
VD
D
VD
D
S0
V
S1
V
S2
V
Note:
^ denotes internal pull up
V
denotes internal pull down
Die ID:
A0303-03J
C502A
PLL502-50
VCXO IC Die for 20 to 52MHz Parallel Resonant Crystals
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/17/04 Page 2
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings
PARAMETERS SYMBOL
MIN.
MAX.
UNITS
Supply Voltage
V
DD
4.6 V
Input Voltage, dc
V
I
-0.5
V
DD
+0.5 V
Output Voltage, dc
V
O
-0.5
V
DD
+0.5 V
Storage Temperature
T
S
-65 150
C
Ambient Operating Temperature*
T
A
-40 85
C
Junction Temperature
T
J
125
C
Lead Temperature (soldering, 10s)
260
C
ESD Protection, Human Body Model
2
kV
Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the
device and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other
conditions above the operational limits noted in this specification is not implied.
* Note: Operating Temperature is guaranteed by design for all parts (COMMERCIAL and INDUSTRIAL), but tested for COMMERCIAL grade only.
2. DC Electrical Specifications
PARAMETERS SYMBOL CONDITIONS MIN.
TYP.
MAX.
UNITS
Supply Current, Dynamic, with
Loaded Outputs
I
DD
F
XIN
= 20 - 52MHz
Output load of 10pF
10 mA
Operating Voltage
V
DD
2.25
3.63
V
I
OH
V
OH
= V
DD
-0.4V, V
DD
=3.3V 30 mA
Output drive current
(High Drive)
I
OL
V
OL
= 0.4V, V
DD
= 3.3V
30
mA
I
OH
V
OH
= V
DD
-0.4V, V
DD
=3.3V 10 mA
Output drive current
(Standard Drive)
I
OL
V
OL
= 0.4V, V
DD
= 3.3V
10
mA
Short Circuit Current
50
mA
VCXO Control Voltage
VCON
0
V
DD
V
3. AC Electrical Specifications
PARAMETERS SYMBOL CONDITIONS MIN.
TYP.
MAX.
UNITS
Input Crystal Frequency
20
52
MHz
Output Clock Rise/Fall Time
(Standard Drive)
0.3V ~ 3.0V with 15 pF load
2.4
Output Clock Rise/Fall Time
(High Drive)
0.3V ~ 3.0V with 15 pF load
1.2
ns
Output Clock Duty Cycle
Measured @ 50% V
DD
45
50
55
%
PLL502-50
VCXO IC Die for 20 to 52MHz Parallel Resonant Crystals
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/17/04 Page 3
4. Voltage Control Crystal Oscillator (3.3V)
PARAMETERS SYMBOL CONDITIONS MIN.
TYP.
MAX.
UNITS
VCXO Stabilization Time *
T
VCXOSTB
From power valid
10
ms
VCXO Tuning Range
F
XIN
= 20 - 52MHz;
XTAL C
0
/C
1
< 250
0V
VCON 3.3V
500 ppm
CLK output pullability
VCON=1.65V
1.65V
200
ppm
VCXO Tuning Characteristic
150
ppm/V
Pull range linearity
10
%
VCON input impedance
80
k
VCON modulation BW
0V
VCON 3.3V, -3dB
25
kHz
Note: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits.
5. Crystal Specifications
PARAMETERS SYMBOL CONDITIONS MIN.
TYP.
MAX.
UNITS
Crystal Resonator Frequency
F
XIN
Parallel Fundamental Mode
20
52
MHz
Crystal Loading Rating
C
L (xtal)
At Vcon = 1.65V
9.5
pF
Crystal Pullability
C
0
/C
1 (xtal)
AT
cut
250
-
Recommended ESR
R
E
AT cut
30
Note: Crystal Loading rating: 9.5pF is the loading the crystal sees from the VCXO chip at VCON = 1.65V. It is assumed that the crystal will be at
nominal frequency at this load. If the crystal requires more load to be at nominal frequency, the additional load must be added externally. This
however may reduce the pull range.
6. Jitter specifications
PARAMETERS CONDITIONS
MIN.
TYP.
MAX.
UNITS
Period jitter RMS
51.84MHz
2.3
ps
Period jitter peak-to-peak
51.84MHz
18
ps
Integrated jitter RMS
Integrated 12 kHz to 20 MHz at 51.84MHz
1
ps
7. Phase noise specifications
PARAMETERS FREQUENCY @10Hz
@100Hz @1kHz @10kHz @100kHz UNITS
Phase Noise relative
to carrier
51.85MHz -65 -90
-120
-140
-147
dBc/Hz
Note: Phase Noise at VCON = 0V
PLL502-50
VCXO IC Die for 20 to 52MHz Parallel Resonant Crystals
47745 Fremont Blvd., Fremont, California 94538 Tel (510) 492-0990 Fax (510) 492-0991 www.phaselink.com Rev 09/17/04 Page 4
PAD COORDINATES
Pad #
Name
X (
m) Y
(
m)
Description
7 GND 1042
109
Ground.
10 GND 1400 259
Ground.
13 CLK 1400 716
Clock
Output.
18
S2
1232
1365
Frequency Selector pad. Has internal pull down.
19
S1
1042
1365
Frequency Selector pad. Has internal pull down.
20
S0
854
1365
Frequency Selector pad. Has internal pull down.
21 VDD 659 1365
Power
Supply.
23 VDD 459 1365
Power
Supply.
25
OE
194
1365
Used to Enable/Disable the output. Has internal pull up.
27
XIN
109
1017
Crystal input pad. See Crystal Specifications on page 3.
29
XOUT
109
646
Crystal output pad. See Crystal Specifications on page 3.
31
VCON
109
181
Voltage control input.
ORDERING INFORMATION
PhaseLink Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information
furnished by Phaselink is believed to be accurate and reliable. However, PhaseLink makes no guarantee or warranty concerning the accuracy of said
information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product.
LIFE SUPPORT POLICY: PhaseLink's products are not authorized for use as critical components in life support devices or systems
without the express written approval of the President of PhaseLink Corporation.
For part ordering, please contact our Sales Department:
47745 Fremont Blvd., Fremont, CA 94538, USA
Tel: (510) 492-0990 Fax: (510) 492-0991
PART NUMBER
The order number for this device is a combination of the following:
Device number, Package type and Operating temperature range
PLL502-50 D C
Order Number
Marking
Package Option
PLL502-50DC P502-50DC
Die (Waffle Pack)
PART NUMBER
TEMPERATURE
C=COMMERCIAL
I=INDUSTRAL
PACKAGE TYPE
D=DIE
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