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Электронный компонент: PLL502-22SSC

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Preliminary
PLL502-22
384MHz 768MHz Low Phase Noise LVDS VCXO (12 24MHz Crystal)
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 07/17/01 Page 1
FEATURES
Low phase noise output for the 384MHz to
768MHz range (-130 dBc at 10kHz offset).
LVDS output.
12 to 24MHz crystal input.
Integrated crystal load capacitor: no external
load capacitor required.
Output Enable selector.
Wide pull range (+/-180 ppm)
3.3V operation.
Available in 16 Pin TSSOP or SOIC.
DESCRIPTION
The PLL502-22 is a monolithic low jitter and low
phase noise (-130dBc/Hz @ 10kHz offset) VCXO IC
with LVDS output, for 384MHz to 768MHz output
range. It allows the control of the output frequency
with an input voltage (VIN), using a low cost crystal.
The chip provides a pullable output at a frequency of
F
XIN
x 32. This makes the PLL502-22 ideal for a wide
range of applications, including 622.08MHz for
SONET.
PIN CONFIGURATION
F
OUT
= F
XIN
x 32
OE (Pin 5)
Output State
0
Tri-state
1 (Default)
Output enabled
BLOCK DIAGRAM
Reference
Divider
Phase
Comparator
Charge
Pump
Loop
Filter
VCO
VCO
Divider
XTAL
OSC
CLKBAR
OE
XIN
XOUT
CLK
VIN
VARICAP
PLL 502-22
1
2
3
4
5
6
7
8
VDD
9
10
11
12
13
14
15
16
VDD
XIN
XOUT
OE
VIN
GND
GND
VDD
GND_BUF
CLKBAR
VDD_BUF
CLK
GND_BUF
GND
GND
Preliminary
PLL502-22
384MHz 768MHz Low Phase Noise LVDS VCXO (12 24MHz Crystal)
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 07/17/01 Page 2
PIN DESCRIPTIONS
Name
Number
Type
Description
VDD
1,2,16
P
+3.3V Power supply connectors.
XIN
3
I
Crystal input pin.
XOUT
4
I
Crystal output pin.
OE
5
I
Output enable input pin. Disables (tri-state) output when low. Internal
pull-up enables output by default if pin is not connected to low.
VIN
6
I
Frequency control voltage input pin.
GND
7,8,9,10
P
GND Power connectors.
GND_BUF
11,15
P
GND connector for output buffers.
CLK
12
O
True clock output pin.
VDD_BUF
13
P
+3.3V Power supply connector for output buffers.
CLKB
14
O
Complementary clock output pin.
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings
PARAMETERS
SYMBOL
MIN.
MAX.
UNITS
Supply Voltage
V
DD
7
V
Input Voltage, dc
V
I
V
SS
-
0.5
V
DD
+
0.5
V
Output Voltage, dc
V
O
V
SS
-
0.5
V
DD
+
0.5
V
Storage Temperature
T
S
-65
150
C
Ambient Operating Temperature
T
A
0
70
C
Junction Temperature
T
J
125
C
Lead Temperature (soldering, 10s)
260
C
Input Static Discharge Voltage Protection
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.
Preliminary
PLL502-22
384MHz 768MHz Low Phase Noise LVDS VCXO (12 24MHz Crystal)
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 07/17/01 Page 3
2. Crystal Specifications
PARAMETERS
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
Crystal Resonator
Frequency
F
XIN
Parallel Fundamental
Mode
12
24
MHz
Crystal Loading Rating
C
L
(xtal)
TBD
pF
Crystal Pullability
C
0
/C
1
(xtal)
AT cut
250
-
Recommended ESR
R
E
AT cut
30
3. Voltage Control Crystal Oscillator
PARAMETERS
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
VCXO Stabilization Time *
T
VCXOSTB
From power valid
10
ms
Output Frequency Synthesis
Error
(Unless otherwise noted in
Frequency Table)
30
ppm
VCXO Tuning Range
F
XIN
= 12 - 24MHz;
XTAL C
0
/C
1
< 250
380
ppm
CLK output pullability
0V
VCON
3.3V
190
ppm
Linearity
5
10
%
VCXO Tuning Characteristic
115
ppm/V
Note:
Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits.
4. General Electrical Specifications
PARAMETERS
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
Supply Current, Dynamic
(with Loaded Outputs)
I
DD
LVDS
60
mA
Operating Voltage
V
DD
3.13
3.47
V
Output Clock Duty Cycle
@ 1.25V (LVDS)
45
50
55
%
Short Circuit Current
50
mA
Preliminary
PLL502-22
384MHz 768MHz Low Phase Noise LVDS VCXO (12 24MHz Crystal)
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 07/17/01 Page 4
5. Jitter and Phase Noise specification
PARAMETERS
CONDITIONS
MIN.
TYP.
MAX.
UNITS
Period jitter RMS
With capacitive decoupling
between VDD and GND.
7
ps
Accumulated jitter RMS
With capacitive decoupling
between VDD and GND. Over
10,000 cycles.
11
ps
Phase Noise relative to carrier
622MHz @100Hz offset
-80
dBc/Hz
Phase Noise relative to carrier
622MHz @1kHz offset
-109
dBc/Hz
Phase Noise relative to carrier
622MHz @10kHz offset
-130
dBc/Hz
Phase Noise relative to carrier
622MHz @100kHz offset
-132
dBc/Hz
6. LVDS Electrical Characteristics
PARAMETERS
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
Output Differential Voltage
V
OD
247
355
454
mV
V
DD
Magnitude Change
V
OD
-50
50
mV
Output High Voltage
V
OH
1.4
1.6
V
Output Low Voltage
V
OL
0.9
1.1
V
Offset Voltage
V
OS
1.125
1.2
1.375
V
Offset Magnitude Change
V
OS
R
L
= 100
(see figure)
0
3
25
mV
Power-off Leakage
I
OXD
V
out
= V
DD
or GND
V
DD
= 0V
1
10
uA
Output Short Circuit Current
I
OSD
-5.7
-8
mA
Preliminary
PLL502-22
384MHz 768MHz Low Phase Noise LVDS VCXO (12 24MHz Crystal)
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 07/17/01 Page 5
7. LVDS Switching Characteristics
PARAMETERS
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
Differential Clock Rise Time
t
r
0.2
0.7
1.0
ns
Differential Clock Fall Time
t
f
R
L
= 100
C
L
= 10 pF
(see figure)
0.2
0.7
1.0
ns
OUT
OUT
V
OD
V
OS
50
50
OUT
V
DIFF
R
L
= 100
C
L
= 10pF
C
L
= 10pF
LVDS Switching Test Circuit
LVDS Levels Test Circuit
LVDS Transistion Time Waveform
OUT
OUT
OUT
0V (Differential)
0V
20%
80%
20%
80%
t
R
t
F
V
DIFF
Preliminary
PLL502-22
384MHz 768MHz Low Phase Noise LVDS VCXO (12 24MHz Crystal)
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 07/17/01 Page 6
PACKAGE INFORMATION
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
PLL502-22 S C XX
PART NUMBER
TEMPERATURATURE
C=COMMERCIAL
M=MILITARY
I=INDUSTRAL

PACKAGE TYPE
S=SOIC, O=TSSOP
REVISION CODE
(when applicable)
C
L
A
16 PIN Narrow SOIC, TSSOP ( mm )
SOIC
TSSOP
Symbol
Min.
Max.
Min.
Max.
A
1.35
1.75
-
1.20
A1
0.10
0.25
0.05
0.15
B
0.33
0.51
0.19
0.30
C
0.19
0.25
0.09
0.20
D
9.80
10.00
4.90
5.10
E
3.80
4.00
4.30
4.50
H
5.80
6.20
6.40 BSC
L
0.40
1.27
0.45
0.75
e
1.27 BSC
0.65 BSC
E
H
D
A1
e
B