P521-23DI View Datasheet(PDF) - PhaseLink Corporation
Part Name
Description
MFG CO.
'P521-23DI' PDF : 7 Pages View PDF
PLL521-23
Low Phase Noise PECL VCXO (100MHz to 200MHz)
PAD ASSIGNMENT AND DESCRIPTION
Name
Pad #
Die Pad
X (µm)
Y (µm)
Description
VCON
1
GNDOSC
2
329.6
498.3
110.1
110.0
Control Voltage input. Use this pin to change the
output frequency by varying the applied Control
Voltage.
GND connection for oscillator circuitry.
GNDANA
3
696.2
110.0
GND connection for analog circuitry.
GNDANA
4
825.0
110.0
GND connection for analog circuitry.
GNDBUF
5
973.6
110.0
GND connection for output buffer circuitry.
GNDBUF
6
1150.0
109.1
GND connection for output buffer circuitry.
GNDBUF
(optional)
7
1183.6
302.2
GND connection for output buffer circuitry.
PECL
8
1183.6
452.3
PECL output
PECLBAR
9
VDDBUF
(optional)
10
VDDBUF
11
VDDANA
12
1183.6
1182.4
1252.4
1252.4
613.5
745.9
903.6
1081.3
PECL complementary output.
VDD connection for output buffer circuitry.
VDDBUF should be separately decoupled from other
VDDs whenever possible.
VDD connection for output buffer circuitry.
VDDBUF should be separately decoupled from other
VDDs whenever possible.
VDD connection for analog circuitry.
VDDANA should be separately decoupled from other
VDDs whenever possible.
DNC
13
1058.5
1221.6
Do Not Connect
OESEL
14
864.5
1221.6
Selector input to choose the OE control logic. See
table on page 1.
BUFZSEL
15
VDDOSC
16
624.0
467.1
1222.6
1222.7
Output impedance selector
VDD connection for oscillator circuitry.
VDDOSC should be separately decoupled from other
VDDs whenever possible.
OSCOFF
17
GNDOSC
(optional)
18
VCON
19
271.1
109.4
108.9
1222.6
1222.9
1062.1
Oscillator Off Selection input pad. When low, turns
off the oscillator when output is disabled. When high
(default), oscillator running when output is disabled.
Internal pull-up
GND connection for oscillator circuitry.
Control Voltage input. Use this pin to change the
output frequency by varying the applied Control
Voltage (internally connected to pad 1).
XIN
20
109.0
865.8
Crystal oscillator input pad.
XOUT
21
108.6
358.4
Crystal oscillator output pad.
OECTRL
22
108.6
146.5
OE input pad. See table on page 1.
Note: for optimal Phase Noise performance, it is recommended to bond all optional VDD and GND pads.
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
Rev 05/19/05 Page 2
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