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PDF ABX8037 Data sheet ( Hoja de datos )
| Número de pieza | ABX8037 | |
| Descripción | (ABX8037 - ABX8039) Low Phase Noise XO | |
| Fabricantes | Abracon Corporation | |
| Logotipo |  |
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FEATURES
• Less than 0.4ps RMS (12kHz-20MHz) phase
jitter for all frequencies.
• Less than 25ps peak to peak jitter for all
frequencies.
• Low phase noise output (@ 1MHz frequency
offset
∗ -144dBc/Hz for 106.25MHz
∗ -144dBc/Hz for 156.25MHz
∗ -144dBc/Hz for 212.5MHz
∗ -140dBc/Hz for 312.5MHz,
∗ -131dBC/Hz for 622.08MHz
• 19MHz-40MHz crystal input.
• 38MHz-640MHz output.
• Available in PECL, LVDS, or CMOS outputs.
• Output Enable selector.
• 2.5V & 3.3V operation.
• Available in 3x3 QFN or 16-pin TSSOP
packages.
DESCRIPTION
The ABX803X is a monolithic low jitter and low
phase noise high performance clock, capable of
maintaining 0.4ps RMS phase jitter and CMOS,
LVDS or PECL outputs, covering a wide frequency
output range up to 640MHz. It allows high
performance and high frequency output, using a low
cost fundamental crystal of between 19-40MHz.
The frequency selector pads of ABX803X enable
output frequencies of (2, 4, 8, or 16) * FXIN. The
ABX803X is designed to address the demanding
requirements of high performance applications such
Fiber Channel, serial ATA, Ethernet, SAN, etc.
(Preliminary) ABX8037/38/39
38-640MHz Low Phase Noise XO
PACKAGE PIN ASSIGNMENT
VDDANA
XIN
XOUT
SEL2^
OE_CTRL
DNC
GNDANA
LP
1
2
3
4
5
6
7
8
16 SEL0^
15 SEL1^
14 GNDBUF
13 QBAR
12 VDDBUF
11 Q
10 GNDBUF
9 LM
16-pin TSSOP
3x3 QFN
XOUT
SEL2^
OE_CTRL
DNC
12 11 10 9
13 8
14 7
ABX803X
15 6
16 5
1234
GNDBUF
QBAR
VDDBUF
Q
Note1: QBAR is used for single ended CMOS output.
Note2: ^ Denotes internal pull up resistor.
BLOCK DIAGRAM
XIN
XOUT
XTAL
OSC
VCO
Divider
Phase
Detector
Charge
Pump
L o+o p
Filter
VCO
(FXiNx16)
Output
Divider
(1,2,4,8)
QBAR
Q
Performance Tuner
OE
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page 1
1 page  
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4. Jitter Specifications
PARAMETERS
CONDITIONS
Integrated jitter RMS
Integrated 12 kHz to 20 MHz
Period jitter RMS
With capacitive decoupling
between VDD and GND.
Over 10,000 cycles.
Period jitter Peak-to-
Peak
With capacitive decoupling
between VDD and GND.
Over 10,000 cycles.
(Preliminary) ABX8037/38/39
38-640MHz Low Phase Noise XO
FREQUENCY
106.25MHz
156.25MHz
212.5MHz
312.5MHz
622.08MHz
106.25MHz
156.25MHz
212.5MHz
312.5MHz
622.08MHz
106.25MHz
156.25MHz
212.5MHz
312.5MHz
622.08MHz
MIN.
TYP.
0.4
0.4
0.4
0.4
0.4
3
3
3
3
6
20
20
20
20
50
MAX.
0.5
0.5
0.5
0.5
0.5
5
5
5
5
8
30
30
30
30
70
UNITS
ps
ps
ps
5. Phase Noise Specifications
PARAMETERS
Phase Noise
relative to carrier
(typical)
FREQ.
106.25MHz
156.25MHz
212.5MHz
312.5MHz
622.08MHz
@10Hz
-66
-62
-62
-59
-49
@100Hz
-96
-92
-92
-85
-84
@1kHz
-122
-120
-118
-117
-111
@10kHz
-132
-132
-126
-128
-120
@100kHz
-126
-128
-120
-125
-118
@1M
-144
-140
-140
-139
-128
@10M
-150
-150
-150
-148
-138
UNITS
dBc/Hz
6. CMOS Electrical Characteristics
PARAMETERS
Output drive current
Output Clock Rise/Fall Time
Output Clock Rise/Fall Time
SYMBOL
IOH
IOL
CONDITIONS
VOH= VDD-0.4V, VDD=3.3V
VOL = 0.4V, VDD = 3.3V
0.3V ~ 3.0V with 15 pF load
20%-80% with 50Ω Load
MIN.
30
30
TYP. MAX.
0.7
0.3
UNITS
mA
mA
ns
ns
30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 9/1/05 Page 5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet ABX8037.PDF ] | |
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