PE42551
Product Specification
Table 4. Operating Specifications
Parameter
V
DD
Positive Power Supply
Voltage
V
DD
Negative Power Supply
Voltage
I
DD
Power Supply Current
(V
DD
= 3V, V
CNTL
= 3V)
Control Voltage High
Control Voltage Low
RF Power In 50Ω:
9 kHz
≤
4 MHz
4 MHz
≤
6 GHz
0.7xV
DD
0.3xV
DD
Fig. 4
31
Table 5. Control Logic Truth Table
Max
3.0
-3.0
Min
2.5
-2.5
Typ
2.75
-2.75
20
Units
V
V
μA
V
V
dBm
dBm
LS
0
0
1
1
CTRL
0
1
0
1
RFC-RF1
off
on
on
off
RFC-RF2
on
off
off
on
Logic Select (LS)
The Logic Select feature is used to determine the
definition for the CTRL pin.
Switching Frequency
The PE42551 has a maximum 25 kHz switching
rate when the internal negative voltage generator
is used. In the event a customer applies V
SS
external (-V
DD
) to Pin 18, the Switching Rate is
limited to the reciprocal of the Switching Time in
Table 1.
Spurious Performance
The typical spurious performance of the PE42551
is -116 dBm when V
SS
= 0V. If further improvement
is desired, the internal negative voltage generator
can be disabled by externally applying a negative
voltage to the V
SS
pin such that V
SS
= -V
DD
.
Figure 4. Power Handling vs Frequency and Vdd
Document No. 70-0350-02
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©2010-2012 Peregrine Semiconductor Corp. All rights reserved.
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