mga-83563-blk Avago Technologies, mga-83563-blk Datasheet - Page 18

• Manufacturer Part Number: mga-83563-blk
• Description: +22 Dbm Psat 3v Power Amplifier For 0.5? 6 Ghz Applications
• Manufacturer: Avago Technologies

Statistical Parameters
Several categories of parameters
appear within this data sheet.
Parameters may be described
with values that are either
“minimum or maximum,” “typi-
cal,” or “standard deviations.”
The values for parameters are
based on comprehensive product
characterization data, in which
automated measurements are
made on of a minimum of 500
parts taken from three non-
consecutive process lots of
semiconductor wafers. The data
derived from product character-
ization tends to be normally
distributed, e.g., fits the standard
bell curve.
Parameters considered to be the
most important to system perfor-
mance are bounded by minimum
or maximum values. For the
MGA-83563, these parameters
are: Saturated Output Power
(P
(PAE), and Device Current (I
Each of the guaranteed param-
eters is 100% tested as part of the
manufacturing process.
Figure 41. Output Power vs. Supply Voltage for the 900 MHz Amplifier.
sat
26.00
24.00
22.00
20.00
18.00
16.00
14.00
12.00
), Power Added Efficiency
1.5
2.0
P
P
sat
1dB
SUPPLY VOLTAGE, V
d
).
2.5
Values for most of the parameters
in the table of Electrical Specifi-
cations that are described by
typical data are the mathematical
mean (µ), of the normal distribu-
tion taken from the characteriza-
tion data. For parameters where
measurements or mathematical
averaging may not be practical,
such as S-parameters or Noise
Parameters and the performance
curves, the data represents a
nominal part taken from the
center of the characterization
distribution. Typical values are
intended to be used as a basis for
electrical design.
To assist designers in optimizing
not only the immediate amplifier
circuit using the MGA-83563, but
to also evaluate and optimize
trade-offs that affect a complete
wireless system, the standard
deviation (σ) is provided for
many of the Electrical Specifica-
tions parameters (at 25°C) in
addition to the mean. The stan-
dard deviation is a measure of the
variability about the mean. It will
be recalled that a normal distribu-
tion is completely described by
the mean and standard deviation.
d
(V)
3.0
3.5
Standard statistics tables or
calculations provide the probabil-
ity of a parameter falling between
any two values, usually symmetri-
cally located about the mean.
Referring to Figure 42 for ex-
ample, the probability of a
parameter being between ±1σ is
68.3%; between ±2σ is 95.4%; and
between ±3σ is 99.7%.
Figure 42. Normal Distribution.
Phase Reference Planes
The positions of the reference
planes used to specify S-param-
eters and Noise Parameters for
the MGA-83563 are shown in
Figure 43. As seen in the illustra-
tion, the reference planes are
located at the point where the
package leads contact the test
circuit.
Figure 43. Phase Reference Planes.
-3σ
18
-2σ
TEST CIRCUIT
REFERENCE
PLANES
-1σ
Parameter Value
68%
95%
99%
Mean (µ)
(typical)
+1σ +2σ +3σ