ABX0238OC-T [ABRACON]
PECL Output Clock Oscillator, 0.75MHz Min, 800MHz Max, TSSOP-16;
| 型号： | ABX0238OC-T |
| 厂家： | 
ABRACON |
| 描述： | PECL Output Clock Oscillator, 0.75MHz Min, 800MHz Max, TSSOP-16 机械 振荡器 |
| 文件： | 总8页 (文件大小：285K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ABX0235/37/38/39
750kHz – 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC’s
FEATURES
PIN CONFIGURATION
(Top View)
•
•
Selectable 750kHz to 800MHz range.
Low phase noise output (@ 10kHz frequency
offset, -140dBc/Hz for 19.44MHz, -127dBc/Hz for
106.25MHz, -125dBc/Hz for 155.52MHz, -
110dBc/Hz for 622.08MHz).
VDD
XIN
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
SEL0^
SEL1^
GND
XOUT
SEL3^
SEL2^
OE
•
CMOS (ABX0237), PECL (ABX0235 and
ABX0238) or LVDS (ABX0239) output.
12 to 25MHz crystal input.
No external load capacitor required.
Output Enable selector.
Selectable 1/16 to 32x frequency multiplier.
3.3V operation.
Available in 16-Pin (TSSOP or 3x3mm QFN).
CLKC
VDD
•
•
•
•
•
•
CLKT
GND
GND
GND
GND
DESCRIPTION
The ABX0235 (PECL with inverted OE), ABX0237
(CMOS), ABX0238 (PECL), and ABX0239 (LVDS)
are high performance and low phase noise XO IC
chips. They provide phase noise performance as low
as –125dBc at 1kHz offset (at 155MHz) and a typical
RMS jitter of 4pS RMS ( at 155MHz ). They accept
fundamental parallel resonant mode crystals from 12
to 25MHz.
12
11
10
9
13
8
XOUT
GND
CLKC
VDD
14
15
7
6
5
SEL3^
SEL2^
ABX023x
16
CLKT
OE
1
2
3
4
BLOCK DIAGRAM
^: Internal pull-up
*: On 3x3 package, ABX0235/38 do not have SEL0 available: Pin 10
is VDD, pin 11 is GND. However, ABX0237/39 have SEL0 (pin
10), and pin 11 is VDD. See pin assignment table for details.
SEL
OE
OUTPUT ENABLE LOGICAL LEVELS
PLL
Q
(Phase
Part #
OE
State
Locked
Q
Oscillator
Amplifier
0 (Default) Output enabled
Loop)
ABX0238
XIN
1
0
Tri-state
Tri-state
ABX0235
ABX0237
ABX0239
XOUT
PLL by-pass
1 (Default) Output enabled
OE input: Logical states defined by PECL levels for ABX0238
Logical states defined by CMOS levels for
ABX0235/37/39
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1
ABX0235/37/38/39
750kHz – 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC’s
FREQUENCY SELECTION TABLE
SEL3
SEL2
SEL1
SEL0
Selected Multiplier
0
0
0
1
1
1
1
1
1
1
0
1
1
0
0
0
1
1
1
1
1
1
1
0
1
1
0
0
1
1
1
0
1
1
0
1
0
1
0
1
Fin x 32
Fin / 8
Fin x 2
Fin / 2
Fin / 16
Fin x 4
Fin / 4
Fin x 8
Fin x 16
No multiplication
Note: SEL0 is not available (always “1”) for ABX0235 and ABX0238 in 3x3mm package
PIN DESCRIPTIONS ABX0235 and ABX0238 (see next page of ABX0237/39)
TSSOP
Pin number
3x3mm QFN
Pin number
Name
Type
Description
XIN
XOUT
OE
2
12
I
I
Crystal input. See Crystal Specifications on page 3.
Crystal output. See Crystal Specifications on page 3.
Output enable pin (see OE logic state table on page 1).
Ground.
3
13
6
16
I
GND
CLKT
CLKC
SEL0
SEL1
SEL2
SEL3
VDD
7,8,9,10,14
1,2,3,4,8,11
P
O
O
I
11
13
16
15
5
5
True output PECL
7
Complementary output PECL.
Not available
9
15
I
Multiplier selector pins. These pins have an internal pull-up
that will default SEL to ‘1’ when not connected to GND.
I
4
14
I
1, 12
6,10
P
Power Supply.
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 2
ABX0235/37/38/39
750kHz – 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC’s
PIN DESCRIPTIONS ABX0237/39 (see previous page of ABX0235/38)
TSSOP
Pin number
3x3mm QFN
Pin number
Name
Type
Description
XIN
XOUT
OE
2
12
13
I
I
Crystal input. See Crystal Specifications on page 3.
Crystal output. See Crystal Specifications on page 3.
Output enable pin (see OE logic state table on page 1).
Ground.
3
6
16
I
GND
7,8,9,10,14
1,2,3,4,8
P
True output LVDS (ABX0239)
(N/C for ABX0237)
Complementary output LVDS (ABX0239)
(CMOS out for ABX0237).
CLKT
CLKC
11
13
5
7
O
O
SEL0
SEL1
SEL2
SEL3
VDD
16
15
10
9
I
I
Multiplier selector pins. These pins have an internal pull-up
that will default SEL to ‘1’ when not connected to GND.
5
15
I
4
14
I
1, 12
6,11
P
Power Supply.
ELECTRICAL SPECIFICATIONS
1. Absolute Maximum Ratings
PARAMETERS
SYMBOL
MIN.
MAX.
UNITS
Supply Voltage
VDD
VI
4.6
VDD+0.5
VDD+0.5
150
V
Input Voltage, dc
-0.5
-0.5
-65
V
Output Voltage, dc
VO
TS
TA
TJ
V
Storage Temperature
°C
°C
°C
°C
kV
Ambient Operating Temperature*
Junction Temperature
-40
85
125
Lead Temperature (soldering, 10s)
ESD Protection, Human Body Model
260
2
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 con-
ditions 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
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
Crystal Resonator Frequency
Crystal Loading Rating
Recommended ESR
FXIN
CL (xtal)
RE
Parallel Fundamental Mode
12
25
MHz
pF
20
AT cut
30
Ω
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 3
ABX0235/37/38/39
750kHz – 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC’s
3. General Electrical Specifications
PARAMETERS SYMBOL
CONDITIONS
Fout<24MHz
MIN.
TYP.
MAX.
UNITS
25/25/15
65/45/30
100/80/40
3.63
Supply Current,
Dynamic (with
IDD
PECL/LVDS/CMOS
mA
24MHz<Fout<96MHz
96MHz<Fout<800MHz
Loaded Outputs)
2.97
Operating Voltage
VDD
V
@ 50% VDD (CMOS)
@ 1.25V (LVDS)
@ VDD – 1.3V (PECL)
45
45
45
50
50
50
55
55
55
Output Clock
Duty Cycle
%
Short Circuit
Current
mA
±50
4. Jitter Specifications
PARAMETERS
CONDITIONS
FREQUENCY
MIN.
TYP.
MAX.
UNITS
19.44MHz
2.2
3.5
4.3
5.0
17
With capacitive decoupling be-
tween VDD and GND.
Over 10,000 cycles.
77.76MHz
155.52MHz
622.08MHz
19.44MHz
77.76MHz
155.52MHz
622.08MHz
155.52MHz
622.08MHz
Period jitter RMS1
ps
With capacitive decoupling be-
tween VDD and GND.
Over 10,000 cycles.
25
Period jitter Peak-to-
Peak1
ps
ps
27
35
2.6
2.5
4
4
Integrated jitter RMS2
Integrated 12 kHz to 20 MHz
5. Phase Noise Specifications
PARAMETERS
FREQUENCY
@10Hz
@100Hz
@1kHz @10kHz @100kHz UNITS
19.44MHz
77.76MHz
155.52MHz
622.08MHz
-80
-72
-65
-55
-108
-103
-95
-132
-122
-120
-109
-142
-130
-125
-115
-150
-125
-121
-110
Phase Noise2 relative
to carrier
(typical)
dBc/Hz
-85
6. CMOS Electrical Characteristics
PARAMETERS
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
IOH
IOL
VOH= VDD-0.4V, VDD=3.3V
VOL = 0.4V, VDD = 3.3V
10
10
mA
mA
ns
Output drive current
Output Clock Rise/Fall Time
0.3V ~ 3.0V with 15 pF load
2.4
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 4
ABX0235/37/38/39
750kHz – 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC’s
7. LVDS Electrical Characteristics
PARAMETERS
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
Output Differential Voltage
VDD Magnitude Change
Output High Voltage
Output Low Voltage
Offset Voltage
VOD
∆VOD
VOH
247
-50
355
454
50
mV
mV
V
1.4
1.1
1.2
3
1.6
RL = 100 Ω
(see figure)
VOL
0.9
1.125
0
V
VOS
1.375
25
V
Offset Magnitude Change
mV
∆VOS
Vout = VDD or GND
VDD = 0V
Power-off Leakage
IOXD
IOSD
uA
±1
±10
Output Short Circuit Current
-5.7
-8
mA
8. LVDS Switching Characteristics
PARAMETERS
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
RL = 100 Ω
CL = 10 pF
(see figure)
Differential Clock Rise Time
Differential Clock Fall Time
tr
tf
0.2
0.2
0.7
0.7
1.0
1.0
ns
ns
LVDS Levels Test Circuit
LVDS Switching Test Circuit
OUT
OUT
CL = 10pF
50
50
Ω
Ω
VOD
VOS
VDIFF
RL = 100Ω
CL = 10pF
OUT
OUT
LVDS Transistion Time Waveform
OUT
OUT
0V (Differential)
80%
80%
VDIFF
0V
20%
20%
tR
tF
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 5
ABX0235/37/38/39
750kHz – 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC’s
9. PECL Electrical Characteristics
PARAMETERS
SYMBOL
CONDITIONS
MIN.
MAX.
UNITS
Output High Voltage
Output Low Voltage
VOH
VOL
VDD – 1.025
V
V
RL = 50 Ω to (VDD – 2V)
(see figure)
VDD – 1.620
10. PECL Switching Characteristics
PARAMETERS
Clock Rise Time
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
tr
tf
0.8V ~ 2.0V
1.5
1.5
60
ns
ns
%
Clock Fall Time
Duty Cycle
2.0V ~ 0.8V
Measured @ 1.4V
40
50
PECL Levels Test Circuit
PECL Output Skew
OUT
VDD
OUT
50
50
Ω
Ω
2.0V
50%
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 6
ABX0235/37/38/39
750kHz – 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC’s
PACKAGE INFORMATION
16 PIN TSSOP ( mm )
Symbol
Min.
-
Max.
1.20
0.15
0.30
0.20
5.10
4.50
E
H
A
A1
B
C
D
E
0.05
0.19
0.09
4.90
4.30
D
A
H
L
e
A1
C
L
B
e
3x3mm QFN
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 7
ABX0235/37/38/39
750kHz – 800MHz Low Phase Noise Multiplier XO
Universal Low Phase Noise IC’s
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
ABX023x O C
TEMPERATURE
C=COMMERCIAL
I=INDUSTRAL
PART NUMBER
PACKAGE TYPE
O=TSSOP Q=QFN
Order Number
Marking
Package Option
ABX0235OC-T
ABX0235OC
ABX0235QC-T
ABX0235QC
ABX0235OC
ABX0235OC
ABX0235QC
ABX0235QC
TSSOP - Tape and Reel
TSSOP – Tube
QFN - Tape and Reel
QFN – Tube
ABX0237OC-T
ABX0237OC
ABX0237QC-T
ABX0237QC
ABX0237OC
ABX0237OC
ABX0237QC
ABX0237QC
TSSOP - Tape and Reel
TSSOP – Tube
QFN - Tape and Reel
QFN – Tube
ABX0238OC-T
ABX0238OC
ABX0238QC-T
ABX0238QC
ABX0238OC
ABX0238OC
ABX0238QC
ABX0238QC
TSSOP - Tape and Reel
TSSOP – Tube
QFN - Tape and Reel
QFN – Tube
ABX0239OC-T
ABX0239OC
ABX0239QC-T
ABX0239QC
ABX0239OC
ABX0239OC
ABX0239QC
ABX0239QC
TSSOP - Tape and Reel
TSSOP – Tube
QFN - Tape and Reel
QFN - Tube
Abracon Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information fur-
nished by Abracon is believed to be accurate and reliable. However, Abracon makes no guarantee or warranty concerning the accuracy of said infor-
mation 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 8
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