ABX0211 - Abracon

ABX0211
96MHz – 200MHz Low Phase Noise PECL XO (12 – 25MHz Crystals)
FEATURES
•
•
•
•
Low phase noise output for the 96MHz to
200MHz range (-134 dBc at 10kHz offset).
PECL output.
12 to 25MHz crystal input.
Integrated crystal load capacitor: no external
load capacitor required.
Output Enable selector.
3.3V operation.
Available in 16 Pin TSSOP.
VDD
1
16
VDD
VDD
2
15
GND_BUF
XIN
3
14
CLKBAR
XOUT
4
13
VDD_BUF
OE^
5
12
CLK
N/C
6
11
GND_BUF
GND
7
10
GND
GND
8
9
GND
ABX0211
•
•
•
PIN CONFIGURATION
Note: ^ denotes internal pull up
F OUT = F X IN x 8
DESCRIPTION
The ABX0211 is a monolithic low jitter and low
phase noise (-134dBc/Hz @ 10kHz offset) XO IC
with PECL output, for 96MHz to 200MHz output
range. It provides a low phase noise reference
frequency using a low cost crystal.
The chip delivers an output frequency of F XIN x 8.
This makes the ABX0211 ideal for a wide range of
applications, including 155.52MHz for SONET.
OE (Pin 5)
0
1 (Default)
Output State
Tri-state
Output enabled
BLOCK DIAGRAM
VCO
Divider
Reference
Divider
XIN
XOUT
XTAL
OSC
Phase
Comparator
Charge
Pump
Loop
Filter
VCO
CLKBAR
CLK
OE
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1
ABX0211
96MHz – 200MHz Low Phase Noise PECL XO (12 – 25MHz Crystals)
PIN DESCRIPTIONS
Name
Number
Type
VDD
XIN
XOUT
1,2,16
3
4
P
I
I
OE
5
I
N/C
GND
GND_BUF
CLK
VDD_BUF
CLKB
6
7,8,9,10
11,15
12
13
14
P
P
O
P
O
Description
Power supply.
Crystal input. See Crystal Specifications on page 2.
Crystal output. See Crystal Specifications on page 2.
Output enable input. Disables (tri-state) output when low. Internal pull-up
enables output by default if pin is not connected to low.
Not connected.
Ground.
Ground for output buffers.
True clock output.
Power supply for output buffers.
Complementary clock output.
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings
PARAMETERS
SYMBOL
MIN.
V DD
VI
VO
TS
TA
TJ
-0.5
-0.5
-65
-40
Supply Voltage
Input Voltage, dc
Output Voltage, dc
Storage Temperature
Ambient Operating Temperature*
Junction Temperature
Lead Temperature (soldering, 10s)
ESD Protection, Human Body Model
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. Crystal Specifications
PARAMETERS
Crystal Resonator Frequency
Crystal Loading Rating
Recommended ESR
SYMBOL
CONDITIONS
MIN.
F XIN
C L (xtal)
RE
Parallel Fundamental Mode
12
TYP.
MAX.
UNITS
25
MHz
pF
30
Ω
20
AT cut
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 2
ABX0211
96MHz – 200MHz Low Phase Noise PECL XO (12 – 25MHz Crystals)
3. General Electrical Specifications
PARAMETERS
SYMBOL
Supply Current, Dynamic
(with Loaded Outputs)
Operating Voltage
Output Clock Duty Cycle
Short Circuit Current
I DD
CONDITIONS
MIN.
TYP.
MAX.
UNITS
80
mA
3.63
55
V
%
mA
PECL
V DD
@ V DD – 1.3V (PECL)
2.97
45
50
±50
4. Jitter and Phase Noise Specification
PARAMETERS
Period jitter RMS
Accumulated jitter RMS
Phase
Phase
Phase
Phase
Noise
Noise
Noise
Noise
relative
relative
relative
relative
to
to
to
to
carrier
carrier
carrier
carrier
CONDITIONS
With capacitive decoupling
between VDD and GND.
With capacitive decoupling
between VDD and GND. Over
10,000 cycles.
155MHz @100Hz offset
155MHz @1kHz offset
155MHz @10kHz offset
155MHz @100kHz offset
MIN.
TYP.
MAX.
UNITS
4
ps
9
ps
-95
-120
-125
-121
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 3
ABX0211
96MHz – 200MHz Low Phase Noise PECL XO (12 – 25MHz Crystals)
5. PECL Electrical Characteristics
PARAMETERS
SYMBOL
CONDITIONS
MIN.
V OH
V OL
R L = 50 Ω to (V DD – 2V)
(see figure)
V DD – 1.025
Output High Voltage
Output Low Voltage
MAX.
UNITS
V DD – 1.620
V
V
6. PECL Switching Characteristics
PARAMETERS
SYMBOL
Clock Rise Time
Clock Fall Time
tr
tf
CONDITIONS
@20/80% - PECL
@80/20% - PECL
PECL Levels Test Circuit
OUT
TYP.
MAX.
UNITS
0.6
0.5
1.5
1.5
ns
ns
PECL Output Skew
OUT
VDD
50Ω
MIN.
2.0V
50%
50Ω
OUT
tSKEW
OUT
PECL Transistion Time Waveform
DUTY CYCLE
45 - 55%
55 - 45%
OUT
80%
50%
20%
OUT
tR
tF
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 4
ABX0211
96MHz – 200MHz Low Phase Noise PECL XO (12 – 25MHz Crystals)
PACKAGE INFORMATION
16 PIN TSSOP ( mm )
Symbol
A
A1
B
C
D
E
H
L
e
Min.
Max.
1.20
0.05
0.15
0.19
0.30
0.09
0.20
4.90
5.10
4.30
4.50
6.40 BSC
0.45
0.75
0.65 BSC
E
H
D
A
A1
C
e
L
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
ABX0211
PART NUMBER
XC
TEMPERATURE
C=COMMERCIAL
I=INDUSTRAL
PACKAGE TYPE
O=TSSOP
Order Number
Marking
Package Option
ABX0211OC-T
ABX0211OC
ABX0211OC
ABX0211OC
TSSOP - Tape and Reel
TSSOP – Tube
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 03/21/05 Page 5