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Numéro de référence | PL520-00 | ||
Description | Low Phase Noise VCXO | ||
Fabricant | Micrel | ||
Logo | |||
1 Page
PL520-00
Low Phase Noise VCXO with multipliers (for 100-200MHz Fund Xtal)
FE AT UR E S
100MHz to 200MHz Fundamental Mode Crystal.
Output range: 100 – 200MHz (no multiplication),
200 – 400MHz (2x multiplier), 400 – 700MHz (4x
multiplier), or 800MHz – 1GHz (LVDS output
only for 8x multiplier).
Available outputs: PECL, LVDS, or CMOS (High
Drive (30mA) or Standard Drive (10mA) output).
Selectable OE Logic (enable high or enable low).
Integrated variable capacitors.
Supports 3.3V-Power Supply.
Available in die form.
Thickness 10 mil.
DESCRIPTION
PL520-00 is a VCXO IC specifically designed to pull
high frequency fundamental crystals. Its design was
optimized to tolerate higher limits of interelectrodes
capacitance and bonding capacitance to improve
yield. It achieves very low current into the crystal
resulting in better overall stability. Its internal
varicaps allow an on chip frequency pulling,
controlled by the VCON input.
BLOCK DIAGRAM
SEL
VCON Oscillator
Amplifier
XIN
w/
integrated
varicaps
XOUT
PLL
(Phase
Locked
Loop)
PLL by-pass
OE
Q
Q
PL520-00
DIE SPECIFICATIONS
Name
Value
Size 65 x 62 mil
Reverse side
GND
Pad dimensions
80 m icron x 80 micron
Th ic kn e s s
10 mil
DIE CONFIGURATION
65 mil
25 24 23 22 21 20 19 18
XIN 26
XOUT 27
Die ID:
A1919-19A
SEL3^ 28
SEL2^ 29
OE
30
CTRL
VCON 31
C502A
12345 6 78
(1550,1475)
17 GNDBUF
16 CMOS
15 LVDSB
14 PECLB
13 VDDBUF
12 VDDBUF
11 PECL
10 LVDS
9 OE_SEL^
Y (0,0)
X
Note: ^ denotes internal pull up
OUTPUT SELECTION AND ENABLE
OUTSEL1
(Pad #18)
0
0
1
1
OUTSEL0
(Pad #25)
0
1
0
1
Selected Output
High Drive CMOS
Standard CMOS
LVDS
PECL (default)
OE_SELECT
(Pad #9)
0
1 (Default)
OE_CTRL
(Pad #30)
0
1 (Default)
0 (Default)
1
State
Tr i- s t a te
Output enabled
Output enabled
Tr i- s t a te
Pad #9, 18, 25: Bond to GND to set to “0”. No connection results to
“default” setting through internal pull-up.
Pad #30: Logical states defined by PECL levels if OE_SELECT (pad #9)
is “1”
Logical states defined by CMOS levels if OE_SELECT is “0
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944-0800 • fax +1(408) 474-1000 • www.micrel.com Rev 09/20/04 Page 1
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Pages | Pages 8 | ||
Télécharger | [ PL520-00 ] |
No | Description détaillée | Fabricant |
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