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零件编号 | P521-48 | ||
描述 | Low Phase Noise PECL VCXO | ||
制造商 | PhaseLink Corporation | ||
LOGO | |||
1 Page
Preliminary P521-48
Low Phase Noise PECL VCXO (27MHz to 65MHz)
FEATURES
• 27MHz to 65MHz Fundamental Mode Crystal.
• Output range: 27MHz – 65MHz.
• 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
P521-48 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
P521-48
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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页数 | 6 页 | ||
下载 | [ P521-48.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
P521-48 | Low Phase Noise PECL VCXO | PhaseLink Corporation |
P521-49 | Low Phase Noise PECL VCXO | PhaseLink Corporation |
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