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Numéro de référence | P521-38 | ||
Description | Low Phase Noise PECL VCXO | ||
Fabricant | PhaseLink Corporation | ||
Logo | |||
1 Page
Preliminary P521-38
Low Phase Noise PECL VCXO (65MHz to 130MHz)
FEATURES
• 65MHz to 130MHz Fundamental Mode Crystal.
• Output range: 65MHz – 130MHz.
• Complementary PECL outputs.
• Selectable OE Logic (enable high or enable low).
• Integrated variable capacitors.
• High pull linearity: < 5%.
www.DataShe•et4U.+c/o-m125 ppm pull range
• Supports 2.5V or 3.3V-Power Supply.
• Available in die form.
• Thickness 10 mil.
DESCRIPTIONS
P521-38 is a VCXO IC specifically designed to pull
high frequency fundamental crystals. Its internal
varicaps allow an on chip frequency pulling,
controlled by the VCON input. The chip provides a
low phase noise, low jitter PECL differential clock
output.
BLOCK DIAGRAM
VCON Oscillator
Amplifier
X+
w/
integrated
varicaps
X-
OE
Q
Q
P521-38
DIE CONFIGURATION
57.5 mil
GNDOSC 18
17 16
VCON 19
XIN 20
XOUT 21
OE 22
1
2
(1460,1435)
15 14 13
12
11
34
10
9
8
7
56
VDDANA
VDDBUF
VDDBUF
PECLBAR
PECL
GNDBUF
Y (0,0)
X
DIE SPECIFICATIONS
Name
Size
Reverse side
Pad dimensions
Thickness
Value
56.5 x 57.5 mil
GND
80 micron x 80 micron
10 mil
OUTPUT ENABLE LOGIC SELECTION
OESEL
(Pad #14)
OECTRL
(Pad #22)
State
0 (Default)
0 (Default) Output enabled
1 Tri-state
1
0 Tri-state
1 (Default) Output enabled
Pad #14, 22: Bond to GND to set to “0”, bond to VDD to set to “1”
No connection results to “default” setting through internal pull-up/-down.
Pad #22: Logical states defined by PECL VIH and VIL levels.
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 3/02/04 Page 1
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Pages | Pages 6 | ||
Télécharger | [ P521-38 ] |
No | Description détaillée | Fabricant |
P521-38 | Low Phase Noise PECL VCXO | PhaseLink Corporation |
P521-39 | Low Phase Noise PECL VCXO | PhaseLink Corporation |
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