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PDF ( 数据手册 , 数据表 ) PL502-39

零件编号 PL502-39
描述 750kHz - 800MHz Low Phase Noise Multiplier VCXO
制造商 Micrel
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PL502-39 数据手册, 描述, 功能
PL502-35/-37/-38/-39
750kHz 800MHz Low Phase Noise Multiplier VCXO
Universal Low Phase Noise ICs
FEATURES
PIN CONFIGURATION
Selectable 750kHz to 800MHz range
Low phase noise output (@ 10kHz frequency off-
set, -142dBc/Hz for 19.44MHz, -125dBc/Hz for
155.52MHz, -115dBc/Hz for 622.08MHz)
LVCMOS (PL502-37), LVPECL (PL502-35 and
PL502-38) or LVDS (PL502-39) output
12MHz to 25MHz crystal input
No external load capacitor or varicap required.
Output Enable selector
Wide pull range (±200 ppm)
Selectable /16 to x32 frequency divider/multiplier
3.3V operation
Available in 16-Pin TSSOP or 16-pin 3x3mm QFN
GREEN/RoHS compliant packages
(Top View)
VDD
XIN
XOUT
SEL3^
SEL2^
OE
VCON
GND
1
2
3
4
5
6
7
8
1
6
SEL0^
1
5
SEL1^
1
4
GND
1
3
CLKC
1
2
VDD
1
1
CLKT
1
0
GND
9 GND
TSSOP-16L
^: Internal pull-up
*: On 3x3 package, PL502-35/-38 do not have SEL0 available: Pin 10
is VDD, pin 11 is GND. However, PL502-37/-39 have SEL0 (pin 10),
and pin11 is VDD. See pin assignment table for details.
DESCRIPTION
The PL502-35 (LVPECL with inverted OE), PL502-37
(LVCMOS), PL502-38 (LVPECL), and PL502-39
(LVDS) are high performance and low phase noise
VCXO IC chips. They provide phase noise perfor-
mance as low as 125dBc at 10kHz offset (at
155MHz), by multiplying the input crystal frequency up
to 32x. The wide pull range (±200 ppm) and very low
jitter make them ideal for a wide range of applications,
including SONET/SDH and FEC. They accept funda-
mental parallel resonant mode crystals from 12MHz to
25MHz.
BLOCK DIAGRAM
SEL[3:0]
VCON
XIN
XOUT
Oscillator
Amplifier
w/
integrated
varicaps
PLL
(Phase
Locked
Loop)
PLL by-pass
OE
CLKC
CLKT
PL502-3x
XOUT
SEL3^
SEL2^
OE
12
13
11 10
9
8
14 PL502-3x 7
15 6
16 5
123 4
GND
CLKC
VDD
CLKT
QFN-16L
OUTPUT ENABLE LOGICAL LEVELS
Part #
OE
State
PL502-38
PL502-35
PL502-37
PL502-39
0 (Default)
1
0
1 (Default)
Output enabled
Tri-state
Tri-state
Output enabled
OE input: Logical states defined by LVPECL levels for PL502-38
Logical states defined by LVCMOS levels for PL502-37/-39
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944-0800 • fax +1(408) 474-1000 • www.micrel.com Rev 4/15/13 Page 1







PL502-39 pdf, 数据表
PL502-35/-37/-38/-39
750kHz 800MHz Low Phase Noise Multiplier VCXO
Universal Low Phase Noise ICs
PACKAGE INFORMATION (GREEN PACKAGE COMPLIANT)
TSSOP-16L
Symbol
A
A1
b
C
D
E
H
L
e
Dimension in MM
Min.
Max.
- 1.20
0.05
0.15
0.19
0.30
0.09
0.20
4.90
5.10
4.30
4.50
6.20
6.60
0.45
0.75
0.65 BSC
EH
D
A1
eB
C
A
L
QFN-16L
Dimension (mm)
Symbol
Min Nom Max
A 0.70 0.75 0.80
A1 0.00 - 0.05
A3 0.203
b 0.20 0.25 0.30
D 2.95 3.00 3.05
E 2.95 3.00 3.05
D1 1.65 1.70 1.75
E1 1.65 1.70 1.75
L 0.250 0.300 0.350
e 0.50BSC
e
L
D1
DDD
b
A
SEATING
PLANE
Pin1 Dot
A3
A1
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944-0800 • fax +1(408) 474-1000 • www.micrel.com Rev 4/15/13 Page 8














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