AD8362-EVALZ Analog Devices Inc, AD8362-EVALZ Datasheet - Page 15

• Manufacturer Part Number: AD8362-EVALZ
• Description: BOARD EVAL FOR AD8362
• Manufacturer: Analog Devices Inc
• Series: TruePower™r
• Type: Detector, CDMAr

Specifications of AD8362-EVALZ

• Frequency: 50Hz ~ 3.8GHz
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: AD8362
• Other names: Q3199218

CHARACTERIZATION SETUP
EQUIPMENT
The general hardware configuration used for most of the AD8362
characterization is shown in Figure 40. The signal source is a
Rohde & Schwarz SMIQ03B. A 1:4 balun transformer is used to
transform the single-ended RF signal to differential form. For
frequencies above 3.0 GHz, an Agilent 8521A signal source
was used. For the response measurements in Figure 32 and
Figure 33, the configuration shown in Figure 41 is used. For
Figure 34 and Figure 35, the configuration shown in Figure 42
is used. For Figure 36, the configuration shown in Figure 43 is
used.
ANALYSIS
The slope and intercept are derived using the coefficients of
a linear regression performed on data collected in its central
operating range. Error is stated in two forms: error from the
linear response to the CW waveform and output delta from
25°C performance.
The error from linear response to the CW waveform is the
decibel difference in output from the ideal output defined by
the conversion gain and output reference. This is a measure of
the linearity of the device response to both CW and modulated
waveforms. The error in dB is calculated by
where P
Error from the linear response to the CW waveform is not a
measure of absolute accuracy because it is calculated using
the slope and intercept of each device. However, it verifies the
linearity and the effect of modulation on the device response.
Error from the 25°C performance uses the performance of a
given device and waveform type as the reference; it is predomi-
nantly a measurement of output variation with temperature.
CONTROLLER
RF SOURCE
SMIQ03B
Error
PC
Z
is the x intercept, expressed in dBm.
( )
dB
Figure 40. Primary Characterization Setup
3dB
=
VOUT
RFIN
CHARACTERIZATION
−
Slope
AD8362
Slope
BOARD
×
(
P
IN
−
VOUT
P
Z
)
MULTIMETER
HP34401A
Rev. D | Page 15 of 32
(1)
GENERATOR
3dB
SIGNAL
RF 50Ω
SMT03
TEK TDS5104
TEK TDS5104
GENERATOR
GENERATOR
GENERATOR
Figure 42. Response Measurement Setup for Power-Down Step
HP8112A
SCOPE
Figure 41. Response Measurement Setup for Modulated Pulse
SCOPE
RF 50Ω
SIGNAL
RF 50Ω
SIGNAL
PULSE
SMT03
SMT03
BALUN
Figure 43. Response Measurement Setup for Gated Supply
C2
C1
C3
3dB
3dB
TEK P5050
VOLTAGE PROBE
TEK P5050
VOLTAGE PROBE
COMM
CHPF
DECL
INHI
INLO
DECL
PWDN
COMM
AD8362
732Ω
BALUN
BALUN
AD811
C2
C2
ACOM
ACOM
VPOS
VOUT
VREF
VTGT
VSET
CLPF
C1
C1
0.01µF
C3
C3
COMM
CHPF
DECL
INHI
INLO
DECL
PWDN
COMM
COMM
CHPF
DECL
INHI
INLO
DECL
PWDN
COMM
50Ω
C4
AD8362
AD8362
TEK TDS5104
100pF
GENERATOR
ACOM
ACOM
ACOM
ACOM
VPOS
VOUT
VPOS
VOUT
VREF
VTGT
VREF
VTGT
VSET
CLPF
VSET
CLPF
SCOPE
HP8112A
PULSE
AD8362
TEK P5050
VOLTAGE
PROBE
HPE3631A
HPE3631A
SUPPLY
POWER
SUPPLY
POWER
C4
C4