ABV0203 - Abracon

ABV0203
Low Phase Noise VCXO (48MHz to 100MHz)
FEATURES
•
•
•
•
•
•
VCXO output for the 48MHz to 100MHz range
Low phase noise (-130 dBc @ 10kHz offset at
48MHz).
CMOS output.
12 to 25MHz crystal input.
Integrated variable capacitors.
Selectable High Drive (30mA) or Standard Drive
(10mA) output.
Wide pull range (+/- 250 ppm).
Low jitter (RMS): 3.5ps period.
3.3V operation.
Available in 8-Pin SOIC.
XOUT
1
N/C
2
VCON
3
GND
4
8
XIN
7
OE^
6
VDD
5
CLK
Note: ^ denotes internal pull up
OUTPUT RANGE
FREQUENCY
RANGE
48 - 100MHz
MULTIPLIER
DESCRIPTION
ABV0203
•
•
•
•
PIN CONFIGURATION
X4
The ABV0203 is a low cost, high performance and
low phase noise VCXO for the 48 to 100MHz range,
providing less than -130dBc at 10kHz offset at
48MHz. The very low jitter (3.5ps RMS period jitter)
makes this chip ideal for applications requiring voltage controlled frequency sources. Input crystal can
range from 12 to 25MHz (fundamental resonant
mode).
OUTPUT
BUFFER
CMOS
BLOCK DIAGRAM
VCO
Divider
Reference
Divider
XIN
XOUT
XTAL
OSC
Phase
Comparator
Charge
Pump
Loop
Filter
VCO
CLK
OE
VARICAP
VCON
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/11/05 Page 1
ABV0203
Low Phase Noise VCXO (48MHz to 100MHz)
PIN DESCRIPTIONS
Name
Number
Type
Description
XOUT
1
I
Crystal output. See Crystal Specifications on page 3.
N/C
2
-
Not connected.
VCON
3
I
Voltage Control input.
GND
4
P
Ground.
CLK
5
O
Output clock.
VDD
6
P
+3.3V power supply.
OE
7
I
Output enable input. Disables (tri-state) output when low. Internal pull-up
enables output by default if pin is not connected to low.
XIN
8
I
Crystal input. See Crystal Specifications on page 3.
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings
PARAMETERS
SYMBOL
Supply Voltage
Input Voltage, dc
Output Voltage, dc
Storage Temperature
Ambient Operating Temperature*
Junction Temperature
Lead Temperature (soldering, 10s)
ESD Protection, Human Body Model
MIN.
V DD
VI
VO
TS
TA
TJ
-0.5
-0.5
-65
-40
MAX.
UNITS
4.6
V DD +0.5
V DD +0.5
150
85
125
260
2
V
V
V
°C
°C
°C
°C
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
Supply Current, Dynamic, with
Loaded Outputs
Operating Voltage
Output drive current
(High Drive)
Output drive current
(Standard Drive)
Short Circuit Current
VCXO Control Voltage
SYMBOL
I DD
V DD
I OH
I OL
I OH
I OL
CONDITIONS
MIN.
F XIN = 12 - 25MHz
Output load of 10pF
V OH = V DD -0.4V, V DD =3.3V
V OL = 0.4V, V DD = 3.3V
V OH = V DD -0.4V, V DD =3.3V
V OL = 0.4V, V DD = 3.3V
TYP.
MAX.
UNITS
16
20
mA
3.63
V
mA
mA
mA
mA
mA
V
2.97
30
30
10
10
±50
VCON
0
3.3
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/11/05 Page 2
ABV0203
Low Phase Noise VCXO (48MHz to 100MHz)
3. AC Electrical Specifications
PARAMETERS
SYMBOL
Input Crystal Frequency
Output Clock Rise/Fall Time
(Standard Drive)
Output Clock Rise/Fall Time
(High Drive)
Output Clock Duty Cycle
CONDITIONS
MIN.
TYP.
12
0.3V ~ 3.0V with 15 pF load
2.4
0.3V ~ 3.0V with 15 pF load
1.2
Measured @ 50% V DD
45
50
CONDITIONS
MIN.
TYP.
MAX.
UNITS
25
MHz
ns
55
%
MAX.
UNITS
10
ms
4. Voltage Control Crystal Oscillator
PARAMETERS
SYMBOL
VCXO Stabilization Time *
VCXO Tuning Range
CLK output pullability
VCXO Tuning Characteristic
Pull range linearity
VCON pin input impedance
VCON modulation BW
T VCXOSTB
From power valid
F XIN = 12 – 25MHz;
XTAL C 0 /C 1 < 250
0V ≤ VCON ≤ 3.3V
VCON=1.65V, ±1.65V
500
ppm
150
ppm
ppm/V
%
±200
10
0V ≤ VCON ≤ 3.3V, -3dB
2000
25
kΩ
kHz
Note: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits.
5. Jitter and Phase Noise specification
PARAMETERS
RMS Period Jitter
(1 sigma – 1000 samples)
Phase Noise relative to carrier
Phase Noise relative to carrier
Phase Noise relative to carrier
Phase Noise relative to carrier
Phase Noise relative to carrier
CONDITIONS
MIN.
with capacitive decoupling
between VDD and GND.
48MHz @100Hz offset
48MHz @1kHz offset
48MHz @10kHz offset
48MHz @100kHz offset
48MHz @1MHz offset
TYP.
MAX.
UNITS
3.5
ps
-100
-123
-130
-125
-125
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
6. Crystal Specifications
PARAMETERS
Crystal Resonator Frequency
Crystal Loading Capacitance Rating
C0/C1
ESR
SYMBOL
MIN.
F XIN
C L (xtal)
12
RS
TYP.
MAX.
UNITS
25
MHz
pF
-
9.5
250
30
Ω
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.
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/11/05 Page 3
ABV0203
Low Phase Noise VCXO (48MHz to 100MHz)
PACKAGE INFORMATION
8 PIN SOIC (in mm)
Symbol
A
A1
B
C
D
E
H
L
e
Min.
Max.
1.47
1.73
0.10
0.25
0.33
0.51
0.19
0.25
4.80
4.95
3.80
4.00
5.80
6.20
0.38
1.27
1.27 BSC
E
H
D
A
A1
C
L
e
B
ORDERING INFORMATION
For part ordering, please contact our Sales Department:
30332 Esperanza., Rancho Santa Margarita, Ca 92688
Ph: 949-546-8000 Fax :949-546-8001
PART NUMBER
The order number for this device is a combination of the following:
Device number, Package type and Operating temperature range
ABV0203 (H) X C
PART NUMBER
TEMPERATURE
C=COMMERCIAL
I=INDUSTRAL
Optional High Drive
PACKAGE TYPE
S=SOIC
Order Number
Marking
Package Option
ABV0203SC
ABV0203SC -T
ABV0203HSC
ABV0203HSC -T
ABV0203SC
ABV0203SC
ABV0203HSC
ABV0203HSC
8-Pin
8-Pin
8-Pin
8-Pin
SOIC
SOIC
SOIC
SOIC
(Tube)
(Tape and Reel)
(Tube)
(Tape and Reel)
Abracon Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information furnished by Abracon is believed to be accurate and reliable. However, Abracon 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: Abracon’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 Abracon Corporation.
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/11/05 Page 4