a
`
`FEATURES
`Measures Gain/Loss and Phase up to 2.7 GHz
`Dual Demodulating Log Amps and Phase Detector
`Input Range –60 dBm to 0 dBm in a 50 ⍀ System
`Accurate Gain Measurement Scaling (30 mV/dB)
`Typical Nonlinearity < 0.5 dB
`Accurate Phase Measurement Scaling (10 mV/Degree)
`Typical Nonlinearity < 1 Degree
`Measurement/Controller/Level Comparator Modes
`Operates from Supply Voltages of 2.7 V–5.5 V
`Stable 1.8 V Reference Voltage Output
`Small Signal Envelope Bandwidth from DC to 30 MHz
`
`APPLICATIONS
`RF/IF PA Linearization
`Precise RF Power Control
`Remote System Monitoring and Diagnostics
`Return Loss/VSWR Measurements
`Log Ratio Function for AC Signals
`
`LF–2.7 GHz
`RF/IF Gain and Phase Detector
`AD8302
`
`FUNCTIONAL BLOCK DIAGRAM
`
`INPA
`OFSA
`
`COMM
`
`OFSB
`INPB
`
`AD8302
`
`VIDEO OUTPUT – A
`
`+
`
`+
`
`60dB LOG AMPS
`(7 DETECTORS)
`
`–
`
`–
`
`PHASE
`DETECTOR
`
`60dB LOG AMPS
`(7 DETECTORS)
`
`VIDEO OUTPUT – B
`
`–
`
`+
`
`VPOS
`
`BIAS
`
`1.8V
`
`x3
`
`MFLT
`
`VMAG
`
`MSET
`
`PSET
`
`VPHS
`
`PFLT
`
`VREF
`
`PRODUCT DESCRIPTION
`The AD8302 is a fully integrated system for measuring gain/loss
`and phase in numerous receive, transmit, and instrumentation
`applications. It requires few external components and a single
`supply of 2.7 V–5.5 V. The ac-coupled input signals can range
`from –60 dBm to 0 dBm in a 50 Ω system, from low frequencies
`up to 2.7 GHz. The outputs provide an accurate measurement
`of either gain or loss over a ± 30 dB range scaled to 30 mV/dB,
`and of phase over a 0°–180° range scaled to 10 mV/degree.
`Both subsystems have an output bandwidth of 30 MHz, which
`may optionally be reduced by the addition of external filter
`capacitors. The AD8302 can be used in controller mode to
`force the gain and phase of a signal chain toward predetermined
`setpoints.
`The AD8302 comprises a closely matched pair of demodulating
`logarithmic amplifiers, each having a 60 dB measurement range.
`By taking the difference of their outputs, a measurement of
`the magnitude ratio or gain between the two input signals is
`available. These signals may even be at different frequencies,
`allowing the measurement of conversion gain or loss. The AD8302
`may be used to determine absolute signal level by applying the
`unknown signal to one input and a calibrated ac reference signal
`to the other. With the output stage feedback connection dis-
`abled, a comparator may be realized, using the setpoint pins
`MSET and PSET to program the thresholds.
`
`The signal inputs are single-ended, allowing them to be matched
`and connected directly to a directional coupler. Their input
`impedance is nominally 3 kΩ at low frequencies.
`The AD8302 includes a phase detector of the multiplier type,
`but with precise phase balance driven by the fully limited signals
`appearing at the outputs of the two logarithmic amplifiers.
`Thus, the phase accuracy measurement is independent of signal
`level over a wide range.
`The phase and gain output voltages are simultaneously available
`at loadable ground referenced outputs over the standard output
`range of 0 V to 1.8 V. The output drivers can source or sink up
`to 8 mA. A loadable, stable reference voltage of 1.8 V is avail-
`able for precise repositioning of the output range by the user.
`In controller applications, the connection between the gain
`output pin VMAG and the setpoint control pin MSET is broken.
`The desired setpoint is presented to MSET and the VMAG
`control signal drives an appropriate external variable gain device.
`Likewise, the feedback path between the phase output pin VPHS
`and its setpoint control pin PSET may be broken to allow
`operation as a phase controller.
`The AD8302 is fabricated on Analog Devices’ proprietary, high
`performance 25 GHz SOI complementary bipolar IC process. It is
`available in a 14-lead TSSOP package and operates over a –40°C
`to +85°C temperature range. An evaluation board is available.
`
`REV. A
`
`Information furnished by Analog Devices is believed to be accurate and
`reliable. However, no responsibility is assumed by Analog Devices for its
`use, nor for any infringements of patents or other rights of third parties that
`may result from its use. No license is granted by implication or otherwise
`under any patent or patent rights of Analog Devices.
`
`One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
`Tel: 781/329–4700
`www.analog.com
`Fax: 781/326-8703
`© Analog Devices, Inc., 2002
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`AD8302–SPECIFICATIONS (TA = 25ⴗC, VS = 5 V, VMAG shorted to MSET, VPHS shorted to PSET, 52.3 ⍀ shunt
`
`resistors connected to INPA and INPB, for Phase measurement PINPA = PINPB, unless otherwise noted.)
`
`Parameter
`
`Conditions
`
`Min
`
`Typ
`
`Max
`
`Unit
`
`OVERALL FUNCTION
`Input Frequency Range
`Gain Measurement Range
`Phase Measurement Range
`Reference Voltage Output
`
`PIN at INPA, PIN at INPB = –30 dBm
`φIN at INPA > φIN at INPB
`Pin VREF, –40°C ≤ TA ≤ +85°C
`Pins INPA and INPB
`INPUT INTERFACE
`Input Simplified Equivalent Circuit To AC Ground, f ≤ 500 MHz
`Input Voltage Range
`AC-Coupled (0 dBV = 1 V rms)
`re: 50 Ω
`
`Center of Input Dynamic Range
`
`>0
`
`1.72
`
`–73
`–60
`
`MAGNITUDE OUTPUT
`Output Voltage Minimum
`Output Voltage Maximum
`Center Point of Output (MCP)
`Output Current
`Small Signal Envelope Bandwidth
`Slew Rate
`Response Time
`Rise Time
`Fall Time
`Settling Time
`
`PHASE OUTPUT
`Output Voltage Minimum
`Output Voltage Maximum
`Phase Center Point
`Output Current Drive
`Slew Rate
`Small Signal Envelope Bandwidth
`Response Time
`
`100 MHz
`Dynamic Range
`
`Slope
`Deviation vs. Temperature
`
`Gain Measurement Balance
`
`Dynamic Range
`
`Slope (Absolute Value)
`Deviation vs. Temperature
`
`Pin VMAG
`20 × Log (VINPA/VINPB) = –30 dB
`20 × Log (VINPA/VINPB) = +30 dB
`VINPA = VINPB
`Source/Sink
`Pin MFLT Open
`40 dB Change, Load 20 pF储10 kΩ
`
`Any 20 dB Change, 10%–90%
`Any 20 dB Change, 90%–10%
`Full-Scale 60 dB Change, to 1% Settling
`
`Pin VPHS
`Phase Difference 180 Degrees
`Phase Difference 0 Degrees
`When φINPA = φINPB ± 90°
`Source/Sink
`
`Any 15 Degree Change, 10%–90%
`120 Degree Change CFILT = 1 pF, to 1% Settling
`MAGNITUDE OUTPUT
`± 1 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`± 0.5 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`± 0.2 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`From Linear Regression
`Deviation from Output at 25°C
`–40°C ≤ TA ≤ +85°C, PINPA = PINPB = –30 dBm
`Deviation from Best Fit Curve at 25°C
`–40°C ≤ TA ≤ +85°C, PINPA = ± 25 dB, PINPB = –30 dBm
`PINPA = PINPB = –5 dBm to –50 dBm
`PHASE OUTPUT
`Less than ± 1 Degree Deviation from Best Fit Line
`Less than 10% Deviation in Instantaneous Slope
`From Linear Regression about –90° or +90°
`Deviation from Output at 25°C
`–40°C ≤ TA ≤ +85°C, Delta Phase = 90 Degrees
`Deviation from Best Fit Curve at 25°C
`–40°C ≤ TA ≤ +85°C, Delta Phase = ± 30 Degrees
`
`± 30
`± 90
`1.8
`
`3储2
`
`–43
`–30
`
`30
`1.8
`900
`8
`30
`25
`
`50
`60
`300
`
`30
`1.8
`900
`8
`25
`30
`40
`500
`
`58
`55
`42
`29
`
`0.25
`
`0.25
`0.2
`
`145
`143
`10
`
`0.7
`
`0.7
`
`2700 MHz
`dB
`Degree
`V
`
`1.88
`
`–13
`0
`
`kΩ储pF
`dBV
`dBm
`dBV
`dBm
`
`mV
`V
`mV
`mA
`MHz
`V/µs
`
`ns
`ns
`ns
`
`mV
`V
`mV
`mA
`V/µs
`MHz
`ns
`ns
`
`dB
`dB
`dB
`mV/dB
`
`dB
`
`dB
`dB
`
`Degree
`Degree
`mV/Degree
`
`Degree
`
`Degree
`
`–2–
`
`REV. A
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`Conditions
`
`Min
`
`Typ
`
`Max
`
`Unit
`
`AD8302
`
`MAGNITUDE OUTPUT
`± 1 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`± 0.5 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`± 0.2 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`From Linear Regression
`Deviation from Output at 25°C
`–40°C ≤ TA ≤ +85°C, PINPA = PINPB = –30 dBm
`Deviation from Best Fit Curve at 25°C
`–40°C ≤ TA ≤ +85°C, PINPA = ± 25 dB, PINPB = –30 dBm
`PINPA = PINPB = –5 dBm to –50 dBm
`PHASE OUTPUT
`Less than ± 1 Degree Deviation from Best Fit Line
`Less than 10% Deviation in Instantaneous Slope
`From Linear Regression about –90° or +90°
`Linear Deviation from Best Fit Curve at 25°C
`–40°C ≤ TA ≤ +85°C, Delta Phase = 90 Degrees
`–40°C ≤ TA ≤ +85°C, Delta Phase = ± 30 Degrees
`Phase @ INPA = Phase @ INPB, PIN = –5 dBm to –50 dBm
`MAGNITUDE OUTPUT
`± 1 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`± 0.5 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`± 0.2 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`From Linear Regression
`Deviation from Output at 25°C
`–40°C ≤ TA ≤ +85°C, PINPA = PINPB = –30 dBm
`Deviation from Best Fit Curve at 25°C
`–40°C ≤ TA ≤ +85°C, PINPA = ±25 dB, PINPB = –30 dBm
`PINPA = PINPB = –5 dBm to –50 dBm
`PHASE OUTPUT
`Less than ± 1 Degree Deviation from Best Fit Line
`Less than 10% Deviation in Instantaneous Slope
`From Linear Regression about –90° or +90°
`Linear Deviation from Best Fit Curve at 25°C
`–40°C ≤ TA ≤ +85°C, Delta Phase = 90 Degrees
`–40°C ≤ TA ≤ +85°C, Delta Phase = ± 30 Degrees
`Phase @ INPA = Phase @ INPB, PIN = –5 dBm to –50 dBm
`MAGNITUDE OUTPUT
`± 1 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`± 0.5 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`± 0.2 dB Linearity PREF = –30 dBm (VREF = –43 dBV)
`From Linear Regression
`Deviation from Output at 25°C
`–40°C ≤ TA ≤ +85°C, PINPA = PINPB = –30 dBm
`Deviation from Best Fit Curve at 25°C
`–40°C ≤ TA ≤ +85°C, PINPA = ± 25 dB, PINPB = –30 dBm
`PINPA = PINPB = –5 dBm to –50 dBm
`PHASE OUTPUT
`Less than ± 1 Degree Deviation from Best Fit Line
`Less than 10% Deviation in Instantaneous Slope
`From Linear Regression about –90° or +90°
`Linear Deviation from Best Fit Curve at 25°C
`–40°C ≤ TA ≤ +85°C, Delta Phase = 90 Degrees
`–40°C ≤ TA ≤ +85°C, Delta Phase = ± 30 Degrees
`Pin VREF
`Load = 2 kΩ
`VS = 2.7 V to 5.5 V
`Source/Sink (Less than 1% Change)
`
`Pin VPOS
`
`1.7
`
`2.7
`
`58
`54
`42
`28.7
`
`0.25
`
`0.25
`0.2
`
`143
`143
`10.1
`
`0.75
`0.75
`0.8
`
`57
`54
`42
`27.5
`
`0.27
`
`0.33
`0.2
`
`128
`120
`10.2
`
`0.8
`0.8
`1
`
`53
`51
`38
`27.5
`
`0.28
`
`0.4
`0.2
`
`115
`110
`10
`
`0.85
`0.9
`
`1.8
`0.25
`5
`
`5.0
`19
`21
`
`1.9
`
`5.5
`25
`27
`
`dB
`dB
`dB
`mV/dB
`
`dB
`
`dB
`dB
`
`Degree
`Degree
`mV/Degree
`
`Degree
`Degree
`Degree
`
`dB
`dB
`dB
`mV/dB
`
`dB
`
`dB
`dB
`
`Degree
`Degree
`mV/Degree
`
`Degree
`Degree
`Degree
`
`dB
`dB
`dB
`mV/dB
`
`dB
`
`dB
`dB
`
`Degree
`Degree
`mV/Degree
`
`Degree
`Degree
`
`V
`mV/V
`mA
`
`V
`mA
`mA
`
`Parameter
`
`900 MHz
`Dynamic Range
`
`Slope
`Deviation vs. Temperature
`
`Gain Measurement Balance
`
`Dynamic Range
`
`Slope (Absolute Value)
`Deviation
`
`Phase Measurement Balance
`
`1900 MHz
`Dynamic Range
`
`Slope
`Deviation vs. Temperature
`
`Gain Measurement Balance
`
`Dynamic Range
`
`Slope (Absolute Value)
`Deviation
`
`Phase Measurement Balance
`
`2200 MHz
`Dynamic Range
`
`Slope
`Deviation vs. Temperature
`
`Gain Measurement Balance
`
`Dynamic Range
`
`Slope (Absolute Value)
`Deviation
`
`REFERENCE VOLTAGE
`Output Voltage
`PSRR
`Output Current
`
`POWER SUPPLY
`Supply
`Operating Current (Quiescent)
`
`VS = 5 V
`–40°C ≤ TA ≤ +85°C
`Specifications subject to change without notice.
`
`REV. A
`
`–3–
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`PIN CONFIGURATION
`
`MFLT
`
`VMAG
`
`MSET
`
`VREF
`
`PSET
`
`VPHS
`
`PFLT
`
`14
`
`13
`
`12
`
`11
`
`10
`
`9 8
`
`AD8302
`TOP VIEW
`(Not to Scale)
`
`1
`
`2 3 4 5 6 7
`
`COMM
`
`INPA
`
`OFSA
`
`VPOS
`
`OFSB
`
`INPB
`
`COMM
`
`AD8302
`
`ABSOLUTE MAXIMUM RATINGS1
`Supply Voltage VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 V
`PSET, MSET Voltage . . . . . . . . . . . . . . . . . . . . . . VS + 0.3 V
`INPA, INPB Maximum Input . . . . . . . . . . . . . . . . . .
` –3 dBV
`Equivalent Power Re. 50 Ω . . . . . . . . . . . . . . . . . . 10 dBm
`2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C/W
`θJA
`Maximum Junction Temperature . . . . . . . . . . . . . . . . 125°C
`Operating Temperature Range . . . . . . . . . . . –40°C to +85°C
`Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
`Lead Temperature Range (Soldering 60 sec) . . . . . . . . 300°C
`NOTES
`1Stresses above those listed under Absolute Maximum Ratings may cause perma-
`nent damage to the device. This is a stress rating only; functional operation of the
`device at these or any other conditions above those indicated in the operational
`section of this specification is not implied. Exposure to absolute maximum rating
`conditions for extended periods may affect device reliability.
`2JEDEC 1S Standard (2-layer) board data.
`
`Pin No.
`1, 7
`2
`3
`
`Mnemonic
`COMM
`INPA
`OFSA
`
`4
`5
`
`6
`8
`9
`
`10
`
`11
`12
`
`13
`
`14
`
`VPOS
`OFSB
`
`INPB
`PFLT
`VPHS
`
`PSET
`
`VREF
`MSET
`
`VMAG
`
`MFLT
`
`PIN FUNCTION DESCRIPTIONS
`
`Function
`Device Common. Connect to low impedance ground.
`High Input Impedance to Channel A. Must be ac-coupled.
`A capacitor to ground at this pin sets the offset compensation filter corner
`and provides input decoupling.
`Voltage Supply (VS), 2.7 V to 5.5 V
`A capacitor to ground at this pin sets the offset compensation filter corner
`and provides input decoupling.
`Input to Channel B. Same structure as INPA.
`Low Pass Filter Terminal for the Phase Output
`Single-Ended Output Proportional to the Phase Difference between INPA
`and INPB.
`Feedback Pin for Scaling of VPHS Output Voltage in Measurement Mode.
`Apply a setpoint voltage for controller mode.
`Internally Generated Reference Voltage (1.8 V Nominal)
`Feedback Pin for Scaling of VMAG Output Voltage Measurement Mode.
`Accepts a set point voltage in controller mode.
`Single-Ended Output. Output voltage proportional to the decibel ratio
`of signals applied to INPA and INPB.
`Low Pass Filter Terminal for the Magnitude Output
`
`Equivalent
`Circuit
`
`Circuit A
`Circuit A
`
`Circuit A
`
`Circuit A
`Circuit E
`Circuit B
`
`Circuit D
`
`Circuit C
`Circuit D
`
`Circuit B
`Circuit E
`
`ORDERING GUIDE
`
`Model
`AD8302ARU
`AD8302ARU-REEL
`AD8302ARU-REEL7
`AD8302-EVAL
`
` Temperature Range
`–40°C to +85°C
`
`Package
`Option
`RU-14
`
`Package Description
`Tube, 14-Lead TSSOP
`13" Tape and Reel
`7" Tape and Reel
`Evaluation Board
`
`CAUTION
`ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
`accumulate on the human body and test equipment and can discharge without detection. Although
`the AD8302 features proprietary ESD protection circuitry, permanent damage may occur on
`devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are
`recommended to avoid performance degradation or loss of functionality.
`
`WARNING!
`
`ESD SENSITIVE DEVICE
`
`–4–
`
`REV. A
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`AD8302
`
`VPOS
`
`+
`ON TO
`LOG-AMP
`–
`
`750⍀
`
`25⍀
`
`VMAG
`(VPHS)
`
`CLASS A-B
`CONTROL
`
`2k⍀
`
`INPA(INPB)
`
`OFSA(OFSB)
`
`VPOS
`
`100mV
`
`4k⍀
`
`4k⍀
`
`10pF
`
`COMM
`
`Circuit A
`
`COMM
`
`Circuit B
`
`VPOS
`
`MFLT
`(PFLT)
`
`1.5pF
`
`COMM
`
`Circuit E
`
`VPOS
`
`VPOS
`
`10k⍀
`
`5k⍀
`
`COMM
`
`Circuit C
`
`VREF
`
`MSET
`(PSET)
`
`10k⍀
`
`10k⍀
`
`ACTIVE LOADS
`
`COMM
`
`Circuit D
`
`Figure 1. Equivalent Circuits
`
`REV. A
`
`–5–
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`AD8302–Typical Performance Characteristics
`
`(VS = 5 V, VINPB is the reference input and VINPA is swept, unless otherwise noted. All references to dBm are referred to 50 ⍀. For the phase output
`curves, the input signal levels are equal, unless otherwise noted.)
`
`900
`
`100
`
`2200
`
`2700
`
`1900
`
`2.0
`
`1.8
`
`1.6
`
`1.4
`
`1.2
`
`1.0
`
`0.8
`
`0.6
`
`0.4
`
`0.2
`
`VMAG – V
`
`ERROR IN VMAG – dB
`
`3.0
`
`2.5
`
`2.0
`
`1.5
`
`1.0
`
`0.5
`
`0.0
`
`–0.5
`
`–1.0
`
`–1.5
`
`–2.0
`
`–2.5
`
`–40ⴗC
`
`+25ⴗC
`
`+85ⴗC
`
`1.80
`
`1.65
`
`1.50
`
`1.35
`
`1.20
`
`1.05
`
`0.90
`
`0.75
`
`0.60
`
`0.45
`
`0.30
`
`0.15
`
`VMAG – V
`
`0
`–30
`
`–20
`
`–10
`0
`10
`MAGNITUDE RATIO – dB
`
`20
`
`–3.0
`30
`
`TPC 4. VMAG and Log Conformance vs. Input Level Ratio
`(Gain), Frequency 900 MHz, –40ⴗC, +25ⴗC, and +85ⴗC,
`Reference Level = –30 dBm
`
`ERROR IN VMAG – dB
`
`3.0
`
`2.5
`
`2.0
`
`1.5
`
`1.0
`
`0.5
`
`0.0
`
`–0.5
`
`–1.0
`
`–40ⴗC
`
`+25ⴗC
`
`+85ⴗC
`
`1.80
`
`1.65
`
`1.50
`
`1.35
`
`1.20
`
`1.05
`
`0.90
`
`0.75
`
`0.60
`
`VMAG – V
`
`0
`–30
`
`2200
`
`1900
`
`2700
`
`2.0
`
`1.8
`
`1.6
`
`1.4
`
`1.2
`
`1.0
`
`0.8
`
`0.6
`
`VMAG – V
`
`–25 –20 –15 –10
`–5
`0
`5
`10
`MAGNITUDE RATIO – dB
`TPC 1. Magnitude Output (VMAG) vs. Input Level Ratio
`(Gain) VINPA/VINPB, Frequencies 100 MHz, 900 MHz,
`1900 MHz, 2200 MHz, 2700 MHz, 25ⴗC, PINPB = –30 dBm,
`(Re: 50 Ω)
`
`15
`
`20
`
`25
`
`30
`
`0.4
`
`0.2
`
`0
`–30
`
`–25 –20 –15 –10
`–5
`0
`5
`10
`MAGNITUDE RATIO – dB
`
`900
`
`15
`
`100
`20
`
`25
`
`30
`
`0.45
`
`0.30
`
`0.15
`
`0
`–30
`
`–20
`
`–10
`0
`10
`MAGNITUDE RATIO – dB
`
`20
`
`–1.5
`
`–2.0
`
`–2.5
`
`–3.0
`30
`
`TPC 2. VMAG vs. Input Level Ratio (Gain) VINPA/VINPB,
`Frequencies 100 MHz, 900 MHz, 1900 MHz, 2200 MHz,
`2700 MHz, PINPA = –30 dBm
`
`TPC 5. VMAG and Log Conformance vs. Input Level Ratio
`(Gain), Frequency 1900 MHz, –40ⴗC, +25ⴗC, and +85ⴗC,
`Reference Level = –30 dBm
`
`ERROR IN VMAG – dB
`
`3.0
`
`2.5
`
`2.0
`
`1.5
`
`1.0
`
`0.5
`
`0.0
`
`–0.5
`
`–1.0
`
`–1.5
`
`–2.0
`
`–2.5
`
`–40ⴗC
`
`+25ⴗC
`
`+85ⴗC
`
`1.80
`
`1.65
`
`1.50
`
`1.35
`
`1.20
`
`1.05
`
`0.90
`
`0.75
`
`0.60
`
`0.45
`
`0.30
`
`0.15
`
`VMAG – V
`
`ERROR IN VMAG – dB
`
`3.0
`
`2.5
`
`2.0
`
`1.5
`
`1.0
`
`0.5
`
`0.0
`
`–0.5
`
`–1.0
`
`–1.5
`
`–2.0
`
`–2.5
`
`–40ⴗC
`
`+25ⴗC
`
`+85ⴗC
`
`1.80
`
`1.65
`
`1.50
`
`1.35
`
`1.20
`
`1.05
`
`0.90
`
`0.75
`
`0.60
`
`0.45
`
`0.30
`
`0.15
`
`VMAG – V
`
`0
`–30
`
`–20
`
`–10
`0
`10
`MAGNITUDE RATIO – dB
`TPC 3. VMAG Output and Log Conformance vs. Input
`Level Ratio (Gain), Frequency 100 MHz, –40ⴗC, +25ⴗC,
`and +85ⴗC, Reference Level = –30 dBm
`
`20
`
`–3.0
`30
`
`0
`–30
`
`–20
`
`–10
`0
`10
`MAGNITUDE RATIO – dB
`
`20
`
`–3.0
`30
`
`TPC 6. VMAG Output and Log Conformance vs. Input
`Level Ratio (Gain), Frequency 2200 MHz, –40ⴗC, +25ⴗC,
`and +85ⴗC, Reference Level = –30 dBm
`
`–6–
`
`REV. A
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`AD8302
`
`–25 –20 –15 –10
`–5
`0
`5
`10
`MAGNITUDE RATIO – dB
`
`15
`
`20
`
`25
`
`30
`
`2.0
`
`1.8
`
`1.6
`
`1.4
`
`1.2
`
`1.0
`
`0.8
`
`0.6
`
`0.4
`
`0.2
`
`0.0
`–30
`
`VMAG – V
`
`+85 C
`
`–40 C
`
`+85 C
`
`–40 C
`
`+25 C
`
`–25 –20 –15 –10
`–5
`0
`5
`10
`MAGNITUDE RATIO – dB
`
`15
`
`20
`
`25
`
`30
`
`3.0
`
`2.5
`
`2.0
`
`1.5
`
`1.0
`
`0.5
`
`0.0
`
`–0.5
`
`–1.0
`
`–1.5
`
`–2.0
`
`–2.5
`
`ERROR IN VMAG – dB
`
`–3.0
`–30
`
`TPC 7. Distribution of Magnitude Error vs. Input Level
`Ratio (Gain), Three Sigma to Either Side of Mean,
`Frequency 900 MHz, –40ⴗC, +25ⴗC, and +85ⴗC, Refer-
`ence Level = –30 dBm
`
`TPC 10. Distribution of VMAG vs. Input Level Ratio (Gain),
`Three Sigma to Either Side of Mean, Frequency 1900 MHz,
`Temperatures Between –40ⴗC and +85ⴗC, Reference Level
`= –30 dBm
`
`–45dBm
`
`–45dBm
`
`–30dBm
`
`–15dBm
`
`3.0
`
`2.5
`
`2.0
`
`1.5
`
`1.0
`
`0.5
`
`0.0
`
`–0.5
`
`1.8
`
`1.6
`
`1.4
`
`1.2
`
`1.0
`
`0.8
`
`VMAG – V
`
`3.0
`
`2.5
`
`2.0
`
`1.5
`
`1.0
`
`0.5
`
`0.0
`
`–40 C
`
`+85 C
`
`ERROR IN VMAG – dB
`
`–1.0
`
`–1.5
`
`–2.0
`
`–2.5
`
`+25 C
`
`–40 C
`
`+85 C
`
`–30dBm
`
`–15dBm
`
`0.6
`
`0.4
`
`0.2
`
`–25 –20 –15 –10
`–5
`0
`5
`10
`MAGNITUDE RATIO – dB
`
`15
`
`20
`
`25
`
`30
`
`0.0
`–30
`
`–20
`
`–10
`0
`10
`MAGNITUDE RATIO – dB
`
`20
`
`–3.0
`30
`
`–0.5
`
`–1.0
`
`–1.5
`
`–2.0
`
`–2.5
`
`–3.0
`–30
`
`ERROR IN VMAG – dB
`
`TPC 8. Distribution of Error vs. Input Level Ratio (Gain),
`Three Sigma to Either Side of Mean, Frequency 1900 MHz,
`–40ⴗC, +25ⴗC, and +85ⴗC, Reference Level = –30 dBm
`
`TPC 11. VMAG Output and Log Conformance vs. Input
`Level Ratio (Gain), Reference Level = –15 dBm, –30 dBm,
`and –45 dBm, Frequency 1900 MHz
`
`PINPA = PINPB + 5dB
`
`PINPA = PINPB
`
`PINPA = PINPB – 5dB
`
`1.10
`
`1.05
`
`1.00
`
`0.95
`
`0.90
`
`0.85
`
`0.80
`
`VMAG – V
`
`–40 C
`
`+85 C
`
`+25 C +85 C
`
`–40 C
`
`–25 –20 –15 –10
`–5
`0
`5
`10
`MAGNITUDE RATIO – dB
`
`15
`
`20
`
`25
`
`30
`
`0.75
`–65
`
`–60 –55 –50 –45 –40 –35 –30
`–25 –20 –15 –10 –5
`INPUT LEVEL – dBm
`
`0
`
`3.0
`
`2.5
`
`2.0
`
`1.5
`
`1.0
`
`0.5
`
`0.0
`
`–0.5
`
`–1.0
`
`–1.5
`
`–2.0
`
`–2.5
`
`ERROR IN VMAG – dB
`
`–3.0
`–30
`
`TPC 9. Distribution of Magnitude Error vs. Input Level
`Ratio (Gain), Three Sigma to Either Side of Mean,
`Frequency 2200 MHz, Temperatures –40ⴗC, +25ⴗC, and
`+85ⴗC, Reference Level = –30 dBm
`REV. A
`
`–7–
`
`TPC 12. VMAG Output vs. Input Level for PINPA = PINPB,
`PINPA = PINPB + 5 dB, PINPA = PINPB – 5 dB, Frequency 1900 MHz
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`18
`
`15
`
`12
`
`9
`
`6
`
`3
`
`PERCENT
`
`PINPA = PINPB + 5dB
`
`PINPA = PINPB
`
`PINPA = PINPB – 5dB
`
`AD8302
`
`1.06
`1.04
`1.02
`1.00
`0.98
`0.96
`0.94
`0.92
`0.90
`0.88
`0.86
`0.84
`0.82
`0.80
`0.78
`0.76
`0.74
`
`VMAG – V
`
`0
`0.80
`
`0.85
`
`0.90
`MCP – V
`TPC 16. Center Point of Magnitude Output (MCP)
`Distribution Frequencies 900 MHz, 17,000 Units
`
`0.95
`
`1.00
`
`18
`
`15
`
`12
`
`9
`
`6
`
`3
`
`PERCENT
`
`0
`27.0
`
`27.5
`
`28.5
`28.0
`29.0
`VMAG SLOPE – mV/dB
`
`29.5
`
`30.0
`
`TPC 17. VMAG Slope, Frequency 900 MHz, 17,000 Units
`
`2800
`
`2600
`
`2400
`
`2200
`
`2000
`
`1800
`
`1600
`
`1400
`
`1200
`
`1000
`
`800
`
`600
`
`400
`
`200
`
`FREQUENCY – MHz
`
`TPC 18. VMAG Slope vs. Frequency
`
`0.032
`
`0.030
`
`0.028
`
`0.026
`
`SLOPE OF VMAG – V
`
`0.024
`
`0
`
`–8–
`
`REV. A
`
`0
`
`200 400 600 800 1000 1200 1400
`FREQUENCY – MHz
`
`1600 1800 2000 2200
`
`TPC 13. VMAG Output vs. Frequency, for PINPA = PINPB, PINPA
`= PINPB + 5 dB, and PINPA = PINPB – 5 dB, PINPB = –30 dBm
`
`–20
`
`0
`
`20
`40
`TEMPERATURE – ⴗC
`
`60
`
`80
`
`85
`
`0.4
`
`0.2
`
`0
`
`–0.2
`
`–0.4
`
`–0.6
`
`–0.8
`
`–1.0
`
`–1.2
`
`–1.4
`
`–1.6
`
`CHANGE IN SLOPE – mV
`
`–1.8
`–40
`
`TPC 14. Change in VMAG Slope vs. Temperature, Three
`Sigma to Either Side of Mean, Frequencies 1900 MHz
`
`25
`
`20
`
`15
`
`10
`
`5
`
`0
`
`–5
`
`–10
`
`–15
`
`–20
`
`VMAG – mV
`
`–25
`–40 –30 –20 –10
`
`0
`
`10
`20
`30
`40
`TEMPERATURE – ⴗC
`
`50
`
`60
`
`70
`
`80
`
`90
`
`TPC 15. Change in Center Point of Magnitude Output
`(MCP) vs. Temperature, Three Sigma to Either Side of
`Mean, Frequencies 1900 MHz
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`AD8302
`
`INPUT –50dBm
`
`INPUT –30dBm
`
`INPUT –10dBm
`
`10000
`
`1000
`
`100
`
`VMAG – nV/ Hz
`
`20mV PER
`VERTICAL
`DIVISION
`
`25ns
`HORIZONTAL
`
`TPC 19. Magnitude Output Response to 4 dB Step, for
`PINPB = –30 dBm, PINPA = –32 dBm to –28 dBm, Frequency
`1900 MHz, No Filter Capacitor
`
`10
`1k
`
`10k
`
`100k
`1M
`FREQUENCY – Hz
`
`10M
`
`100M
`
`TPC 22. Magnitude Output Noise Spectral
`Density, PINPA = PINPB = –10 dBm, –30 dBm,
`–50 dBm, No Filter Capacitor
`
`INPUT –50dBm
`
`INPUT –30dBm
`
`INPUT –10dBm
`
`10000
`
`1000
`
`100
`
`VMAG – nV/ Hz
`
`20mV PER
`VERTICAL
`DIVISION
`
`1.00␮s
`HORIZONTAL
`
`TPC 20. Magnitude Output Response to 4 dB Step, for
`PINPB = –30 dBm, PINPA = –32 dBm to –28 dBm, Frequency
`1900 MHz, 1 nF Filter Capacitor
`
`10
`1k
`
`10k
`
`100k
`1M
`FREQUENCY – Hz
`
`10M
`
`100M
`
`TPC 23. Magnitude Output Noise Spectral Density, PINPA = PINPB
`= –10 dBm, –30 dBm, –50 dBm, with Filter Capacitor, C = 1 nF
`
`2700
`
`2200
`
`1900
`
`100
`
`900
`
`0.18
`
`0.16
`
`0.14
`
`0.12
`
`0.10
`
`0.08
`
`0.06
`
`0.04
`
`0.02
`
`VMAG (PEAK-TO-PEAK) – V
`
`200mV PER
`VERTICAL
`DIVISION
`
`100ns
`HORIZONTAL
`
`TPC 21. Magnitude Output Response to 40 dB Step, for
`PINPB = –30 dBm, PINPA = –50 dBm to –10 dBm, Supply 5 V,
`Frequency 1900 MHz, No Filter Capacitor
`
`0.00
`–25
`
`–20
`
`–15
`
`–10
`–5
`0
`5
`10
`MAGNITUDE RATIO – dB
`
`15
`
`20
`
`25
`
`TPC 24. VMAG Peak-to-Peak Output Induced by Sweeping
`Phase Difference through 360 Degrees vs. Magnitude Ratio,
`Frequencies 100 MHz, 900 MHz, 1900 MHz, 2200 MHz, and
`2700 MHz
`
`REV. A
`
`–9–
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`ERROR – Degrees
`
`10
`
`8 6 4 2 0 –
`
`2
`
`–4
`
`–6
`
`–8
`
`1.80
`
`1.62
`
`1.44
`
`1.26
`
`1.08
`
`0.90
`
`0.72
`
`0.54
`
`0.36
`
`0.18
`
`PHASE OUT – V
`
`100MHz
`
`900MHz
`
`1900MHz
`
`2200MHz
`2700MHz
`
`AD8302
`
`1.8
`
`1.6
`
`1.4
`
`1.2
`
`1.0
`
`0.8
`
`0.6
`
`0.4
`
`0.2
`
`PHASE OUT – V
`
`0.0
`–180 –140
`
`–100
`–60
`–20
`20
`60
`100
`PHASE DIFFERENCE – Degrees
`
`140
`
`180
`
`0.00
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`–10
`120 150 180
`
`TPC 25. Phase Output (VPHS) vs. Input Phase Difference,
`Input Levels –30 dBm, Frequencies 100 MHz, 900 MHz,
`1900 MHz, 2200 MHz, Supply 5 V, 2700 MHz
`
`TPC 28. VPHS Output and Nonlinearity vs. Input Phase
`Difference, Input Levels –30 dBm, Frequency 1900 MHz
`
`10
`
`8 6 4 2 0 –
`
`2
`
`1.80
`
`1.62
`
`1.44
`
`1.26
`
`1.08
`
`0.90
`
`0.72
`
`10
`
`8 6 4 2 0 –
`
`2
`
`1.80
`
`1.62
`
`1.44
`
`1.26
`
`1.08
`
`0.90
`
`0.72
`
`ERROR – Degrees
`
`–4
`
`–6
`
`–8
`
`0.54
`
`0.36
`
`0.18
`
`PHASE OUT – V
`
`ERROR – Degrees
`
`–4
`
`–6
`
`–8
`
`0.54
`
`0.36
`
`0.18
`
`PHASE OUT – V
`
`0.00
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`–10
`120 150 180
`
`0.00
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`–10
`120 150 180
`
`TPC 26. VPHS Output and Nonlinearity vs. Input Phase
`Difference, Input Levels –30 dBm, Frequency 100 MHz
`
`TPC 29. VPHS Output and Nonlinearity vs. Input Phase
`Difference, Input Levels –30 dBm, Frequency 2200 MHz
`
`+25ⴗC
`
`+85ⴗC
`
`–40ⴗC
`
`10
`
`8 6 4 2 0
`
`–2
`
`–4
`
`–6
`
`–8
`
`ERROR – Degrees
`
`ERROR – Degrees
`
`10
`
`8 6 4 2 0 –
`
`2
`
`–4
`
`–6
`
`–8
`
`1.80
`
`1.62
`
`1.44
`
`1.26
`
`1.08
`
`0.90
`
`0.72
`
`0.54
`
`0.36
`
`0.18
`
`PHASE OUT – V
`
`0.00
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`–10
`120 150 180
`
`–10
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`120 150 180
`
`TPC 27. VPHS Output and Nonlinearity vs. Input Phase
`Difference, Input Levels –30 dBm, Frequency 900 MHz
`
`TPC 30. Distribution of VPHS Error vs. Input Phase Differ-
`ence, Three Sigma to Either Side of Mean, Frequency
`900 MHz, –40ⴗC, +25ⴗC, and +85ⴗC, Input Levels –30 dBm
`
`–10–
`
`REV. A
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`AD8302
`
`MEAN +3 SIGMA
`
`MEAN –3 SIGMA
`
`0.15
`
`0.10
`
`0.05
`
`0.00
`
`–0.05
`
`–0.10
`
`–0.15
`
`–0.20
`
`–0.25
`
`–0.30
`
`CHANGE IN VPHS SLOPE – mV
`
`+25ⴗC
`
`–40ⴗC
`
`+85ⴗC
`
`10
`
`8 6 4 2 0
`
`–2
`
`–4
`
`–6
`
`–8
`
`ERROR – Degrees
`
`–10
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`120 150 180
`
`–0.35
`–40 –30 –20 –10
`
`0
`
`10
`20
`30
`40
`TEMPERATURE – ⴗC
`
`50
`
`60
`
`70
`
`80
`
`90
`
`TPC 31. Distribution of VPHS Error vs. Input Phase
`Difference, Three Sigma to Either Side of Mean, Frequency
`1900 MHz, –40ⴗC, +25ⴗC, and +85ⴗC, Supply 5 V, Input
`Levels PINPA = PINPB = –30 dBm
`
`TPC 34. Change in VPHS Slope vs. Temperature, Three
`Sigma to Either Side of Mean, Frequency 1900 MHz
`
` +3 SIGMA
`
` –3 SIGMA
`
`10
`
`05
`
`–5
`
`–10
`
`–15
`
`–20
`
`PERCENT
`
`+85ⴗC +25ⴗC
`
`10
`
`8 6 4 2 0
`
`–2
`
`ERROR – Degrees
`
`–40ⴗC
`
`–4
`
`–6
`
`–8
`
`–25
`
`–30
`
`–35
`
`–10
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`120 150 180
`
`–40
`–40 –30 –20 –10
`
`0
`
`10
`20
`30
`40
`VPHS – mV/Degree
`
`50
`
`60
`
`70
`
`80
`
`90
`
`TPC 32. Distribution of VPHS Error vs. Input Phase Differ-
`ence, Three Sigma to Either Side of Mean, Frequency
`2200 MHz, –40ⴗC, +25ⴗC, and +85ⴗC, Input Levels –30 dBm
`
`TPC 35. Change in Phase Center Point (PCP) vs.
`Temperature, Three Sigma to Either Side of Mean,
`Frequency 1900MHz
`
`18
`
`15
`
`12
`
`9
`
`6
`
`3
`
`PERCENT
`
`1.8
`
`1.6
`
`1.4
`
`1.2
`
`1.0
`
`0.8
`
`0.6
`
`0.4
`
`0.2
`
`VPHS – V
`
`0.0
`–180 –150 –120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`120 150 180
`
`0
`0.75
`
`0.80
`
`0.85
`
`0.90
`PCP – V
`
`0.95
`
`1.00
`
`1.05
`
`TPC 33. Distribution of VPHS vs. Input Phase Differ-
`ence, Three Sigma to Either Side of Mean, Frequency
`900 MHz, Temperature between –40ⴗC and +85ⴗC, Input
`Levels –30 dBm
`
`TPC 36. Phase Center Point (PCP) Distribution, Frequency
`900 MHz, 17,000 Units
`
`REV. A
`
`–11–
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`100mV PER
`VERTICAL
`DIVISION
`
`50ns HORIZONTAL
`
`9.7
`
`9.9
`
`10.1
`10.3
`10.5
`VPHS – mV/Degree
`
`10.7
`
`10.9
`
`11.1
`
`AD8302
`
`16
`
`14
`
`12
`
`10
`
`02468
`
`9.5
`
`PERCENT
`
`TPC 37. VPHS Slope Distribution, Frequency
`900 MHz
`
`TPC 40. VPHS Output Response to 40ⴗ Step with Nominal
`Phase Shift of 90ⴗ, Input Levels PINPA = PINPB = –30 dBm,
`Frequency 1900 MHz,1 pF Filter Capacitor
`
`INPUT –50dBm
`
`INPUT –30dBm
`
`INPUT –10dBm
`
`10000
`
`1000
`
`100
`
`VPHS – nV/ Hz
`
`10mV PER
`VERTICAL
`DIVISION
`
`50ns HORIZONTAL
`
`10
`1k
`
`10k
`
`100k
`1M
`FREQUENCY – Hz
`
`10M
`
`100M
`
`TPC 38. VPHS Output Response to 4ⴗ Step with Nominal
`Phase Shift of 90ⴗ, Input Levels –30 dBm, Frequency
`1900 MHz, 25ⴗC, 1 pF Filter Capacitor
`
`TPC 41. VPHS Output Noise Spectral Density vs. Frequency,
`PINPA = –30 dBm, PINPB = –10 dBm, –30 dBm, –50 dBm, and
`90ⴗ Input Phase Difference
`
`PINPA = –30dBm
`
`PINPA = –15dBm
`
`PINPA = –45dBm
`
`1.80
`
`1.62
`
`1.44
`
`1.26
`
`1.08
`
`0.90
`
`0.72
`
`0.54
`
`0.36
`
`0.18
`
`PHASE OUT – V
`
`0.00
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`120 150 180
`
`TPC 42. Phase Output vs. Input Phase Difference, PINPA =
`PINPB, PINPA = PINPB + 15 dB, PINPA = PINPB – 15 dB, Frequency
`900 MHz
`
`–12–
`
`REV. A
`
`10mV PER
`VERTICAL
`DIVISION
`
`2␮s HORIZONTAL
`
`TPC 39. VPHS Output Response to 4ⴗ Step with Nominal
`Phase Shift of 90ⴗ, Input Levels PINPA = PINPB = –30 dBm,
`Supply 5 V, Frequency 1900 MHz, 25ⴗC, with 100 pF Filter
`Capacitor
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`AD8302
`
`PINPA = –20dBm
`
`PINPA = –40dBm
`
`1.80
`
`1.62
`
`1.44
`
`1.26
`
`1.08
`
`0.90
`
`0.72
`
`0.54
`
`0.36
`
`0.18
`
`PHASE OUT – V
`
`PINPA = –15dBm
`
`PINPA = –30dBm
`
`PINPA = –45dBm
`
`12
`
`10
`
`8
`
`6
`
`4
`
`2
`
`INSTANTANEOUS SLOPE – mV
`ABSOLUTE VALUE OF VPHS
`
`0
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`120 150 180
`
`PINPA = –30dBm
`0.00
`–180 –150
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`120 150 180
`
`TPC 43. Phase Output Instantaneous Slope,
`PINPA = PINPB, PINPA = PINPB + 15 dB, PINPA = PINPB – 15 dB,
`Frequency 900 MHz
`
`TPC 46. Phase Output vs. Input Phase Difference,
`PINPA = PINPB, PINPA = PINPB + 10 dB, PINPA = PINPB – 10 dB,
`Frequency 2200 MHz
`
`PINPA = –20dBm
`
`PINPA = –30dBm
`
`PINPA = –40dBm
`
`12
`
`10
`
`8
`
`6
`
`4
`
`2
`
`INSTANTANEOUS SLOPE – mV
`ABSOLUTE VALUE OF VPHS
`
`PINPA = –20dBm
`
`PINPA = –40dBm
`
`PINPA = –30dBm
`
`1.80
`
`1.62
`
`1.44
`
`1.26
`
`1.08
`
`0.90
`
`0.72
`
`0.54
`
`0.36
`
`PHASE OUT – V
`
`0.18
`
`0.00
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`120 150 180
`
`TPC 44. Phase Output vs. Input Phase Difference,
`PINPA = PINPB, PINPA = PINPB + 10 dB, PINPA = PINPB – 10 dB,
`Frequency 1900 MHz, Supply 5 V
`
`0
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`TPC 47. Phase Output Instantaneous Slope, PINPA = PINPB,
`PINPA = PINPB + 10 dB, PINPA = PINPB – 10 dB, Frequency
`2200 MHz
`
`120 150 180
`
`CAPACITANCE – pF
`
`4.0
`
`3.5
`
`3.0
`
`2.5
`
`2.0
`
`1.5
`
`1.0
`
`0.5
`
`0.0
`
`REAL SHUNT Z (⍀)
`
`SHUNT R
`
`SHUNT C
`
`CAPACITANCE SHUNT Z (pF)
`
`4000
`
`3500
`
`3000
`
`2500
`
`2000
`
`1500
`
`1000
`
`500
`
`RESISTANCE – ⍀
`
`0
`
`0
`
`500
`
`1000
`1500
`FREQUENCY – MHz
`
`2000
`
`2500
`
`TPC 48. Input Impedance, Modeled as Shunt R in Parallel
`with Shunt C
`
`PINPA = –30dBm
`
`PINPA = –40dBm
`
`12
`
`10
`
`8
`
`6
`
`4
`
`2
`
`INSTANTANEOUS SLOPE – mV
`ABSOLUTE VALUE OF VPHS
`
`PINPA = –20dBm
`
`0
`–180 –150
`
`–120 –90 –60 –30
`0
`30
`60
`90
`PHASE DIFFERENCE – Degrees
`
`120 150 180
`
`TPC 45. Phase Output Instantaneous Slope, PINPA =
`PINPB, PINPA = PINPB + 10 dB, PINPA = PINPB – 10 dB,
`Frequency 1900 MHz, Supply 5 V
`
`REV. A
`
`–13–
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`18
`
`15
`
`12
`
`9
`
`6
`
`3
`
`PERCENT
`
`AD8302
`
`8
`
`6
`
`4 2 0
`
`–2
`
`–4
`
`VREF – mV
`
`–6
`–40 –30
`
`–20 –10
`
`0
`
`10
`20
`30
`40
`TEMPERATURE – ⴗC
`
`50
`
`60
`
`70
`
`80
`
`90
`
`TPC 49. Change in VREF vs. Temperature, Three Sigma to
`Either Side of Mean
`
`0
`1.74
`
`1.76
`
`1.78
`
`1.80
`1.82
`VREF – V
`
`1.84
`
`1.86
`
`1.88
`
`TPC 51. VREF Distribution, 17,000 Units
`
`120
`
`100
`
`80
`
`60
`
`40
`
`20
`
`NOISE – nV/ Hz
`
`
`
`0
`1k
`
`10k
`
`100k
`1M
`FREQUENCY – Hz
`
`10M
`
`100M
`
`TPC 50. VREF Output Noise Spectral Density vs.
`Frequency
`
`–14–
`
`REV. A
`
`ADVANCED ENERGY INDUSTRIES INC.
`Exhibit 1021
`
`

`

`AD8302
`
`[
`]
`)
`) − (
`(
`=
`Φ
`Φ Φ
`V
`V
`V
`(3)
`INB
`INA
`PHS
`
`where VΦ is the phase slope in mV/degree and Φ is each signal’s
`relative phase in degrees.
`Structure
`The general form of the AD8302 is shown in Figure 2. The
`major blocks consist of two demodulating log amps, a phase
`detector, output amplifiers, a biasing cell, and an output refer-
`ence voltage buffer. The log amps and phase detector process
`the high frequency signals and deliver the gain and phase infor-
`mation in current form to the output amplifiers. The output
`amplifiers determine the final gain and phase scaling. External
`filter capacitors set the averaging time constants for the respec-
`tive outputs. The reference buffer provides a 1.80 V reference
`voltage that tracks the internal scaling constants.
`
` V
`
`VIDEO OUTPUT – A
`
`+
`
`+
`
`INPA
`OFSA
`
`60dB LOG AMPS
`(7 DETECTORS)
`
`–
`
`–
`
`COMM
`
`OFSB
`INPB
`
`PHASE
`DETECTOR
`
`60dB LOG AMPS
`(7 DETECTORS)
`
`VIDEO OUTPUT – B
`
`–
`
`+
`
`VPOS
`
`BIAS
`
`x3
`
`1.8V
`
`MFLT
`VMAG
`
`MSET
`
`PSET
`
`VPHS
`
`PFLT
`
`VREF
`
`Figure 2. General Structure
`Each log amp consists of a cascade of six 10 dB gain stages with
`seven associated detectors. The individual gain stages have 3 dB
`bandwidths in excess of 5 GHz. The signal path is fully differen-
`tial to minimize the effect of common-mode signals and noise.
`Since there is a total of 60 dB of cascaded gain, slight dc offsets
`can cause limiting of the latter stages, which may cause mea-
`surement errors for small signals. This is corrected by a feedback
`loop. The nominal high-pass corner frequency, fHP, of this loop
`is set internally at 200 MHz but can be lowered by adding external
`capacitance to the OFSA and OFSB pins. Signals at frequencies
`well below the high-pass corner are indistinguishable from dc
`offsets and are also nulled. The difference in the log amp out-
`puts is performed in the current domain, yielding by analogy to
`Equation 2:
`(
`)
`=
`I
` I
`V
`V
`log
`LA
`SLP
`INA
`INB
`
`where ILA and ISLP are the output current difference and the
`characteristic slope (current) of the log amps, respectively. The
`slope is derived from an accurate reference designed to be insen-
`sitive to temperature and supply voltage.
`The phase detector uses a fully symmetric structure with respect
`to its two inputs to maintain balanced delays along both signal
`paths. Fully differential signaling again minimizes the sensitivity
`to common-mode perturbations. The current-mode equivalent
`to Equation 3 is:
`]
`[
`(
`) − (
`) −
`°
`=
`Φ Φ
`Φ
`V
`V
`90
`PD
`INA
`INB
`
`where IPD and IΦ are the output current and characteristic slope
`associated with the phase detector, respectively. The slope is
`derived from the same reference as the log amp slope.
`–15–
`
`/
`
`I
`
` I
`
`
`
`(4)
`
`(5)
`
`GENERAL DESCRIPTION AND THEORY
`The AD8302 measures the magnitude ratio, defined here as
`gain, and phase difference between two signals. A pair of
`matched logarithmic amplifiers provide the measurement, and
`their hard-limited outputs drive the phase detector.
`Basic Theory
`Logarithmic amplifiers (log amps) provide a logarithmic com-
`pression function that converts a large range of input signal
`levels to a compact decibel-scaled output. The general math-
`ematical form is:
`=
`
`(1)
`
`log
`
`/
`
`(2)
`
`NOTES
`1See the data sheet for the AD640 for a description of the effect