HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Typical Applications
Features
Broadband Single-Ended RF Input
The HMC909LP4E is ideal for:
±1 dB Detection Accuracy to 5.8 GHz
• Log –> Root-Mean-Square (RMS) Conversion
Input Dynamic Range: -51 dBm to -11 dBm
• Received Signal Strength Indication (RSSI)
RF Signal Wave shape & Crest Factor Independent
• Transmitter Signal Strength Indication (TSSI)
Digitally Programmable Integration Bandwidth
• RF Power Amplifier Efficiency Control
+5V Operation from -40°C to +85°C
• Receiver Automatic Gain Control
Power Detectors - SMT
11
Excellent Temperature Stability
• Transmitter Power Control
Power-Down Mode
24 Lead 4x4mm SMT Package: 16mm²
Functional Diagram
General Description
The HMC909LP4E Power Detector is designed for
RF power measurement, and control applications for
frequencies up to 5.8 GHz. The detector provides
an accurate RMS representation of any broadband,
single-ended RF/IF input signal. The output is a temperature compensated monotonic, representation of
real signal power, measured with an input sensing
range of 40 dB.
The HMC909LP4E is ideally suited to those wide
bandwidth, wide dynamic range applications, requiring repeatable measurement of real signal power,
especially where RF/IF wave shape and/or crest factor
change with time.
The integration bandwidth of the HMC909LP4E is
digitally programmable with the use of input pins
SCI1-4 with a range of more than 4 decade. This
allows the user to dynamically set the operation
bandwidth providing the capability of handling different types of modulations on the same platform.
HMC909LP4E features an internal op-amp at output
stage, which provides for slope / intercept adjustments
and enables controller application.
Electrical Specifications, TA = +25 °C, Vcc = 5V
Parameter
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Units
100
900
1900
2200
2700
3500
3900
5800
MHz
40
40
40
39
38
37
36
24
dB
Dynamic Range (±1dB Error) [1]
Input Frequency
Single Ended Input Configuration
Deviation vs Temperature: (Over full temperature range -40 °C to 85 °C).
Deviation is measured from reference, which is the same WCDMA input at 25 °C.
1
dB
[1] With WCDMA 4 Carrier (TMI1-64 DPCH)
11 - 1
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery,
andRoad,
to place
orders: Analog
Devices,
For price,
delivery
and
to for
place
Hittite Microwave
Corporation,
20 Alpha
Chelmsford,
MA
01824Inc.,
responsibility
is assumed
by Analog
Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Electrical Specifications II
TA = +25 °C, Vcc = 5V, Sci4 = Sci1 = 0V, Sci3 = Sci2 = 5V, Unless Otherwise Noted
Parameter
Input Frequency
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Units
100
900
1900
2200
2700
3500
3900
5800
MHz
Modulation Deviation (Output deviation from reference, which is measured with CW input at equivalent input signal power)
WCDMA 4 Carrier (TM1-64 DPCH) at +25 °C
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.4
dB
WCDMA 4 Carrier (TM1-64 DPCH) at +85 °C
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.4
dB
WCDMA 4 Carrier (TM1-64 DPCH) at -40 °C
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.3
dB
Logarithmic Slope
36.2
36.3
36.9
37.5
39.2
42.6
44.6
66.9
mV/dB
Logarithmic Intercept
Logarithmic Slope and Intercept [1]
-70.1
-69.7
-68.5
-67.7
-65.6
-61.8
-59.1
-44.5
dBm
Max. Input Power at ±1dB Error
-12
-12
-11
-11
-12
-12
-11
-12
dBm
Min. Input Power at ±1dB Error
-52
-52
-51
50
-50
-49
-47
-36
dBm
11
RMSOUT vs. Pin with Different
Modulations @ 1900 MHz [1]
RMSOUT Error vs. Pin with Different
Modulations @ 1900 MHz [1]
3
4
3
Ideal
CW
WCDMA 4 carriers
WCDMA single carrier
2
CW
WCDMA 4 carriers
WCDMA single carrier
2
ERROR (dB)
RMSOUT (V)
2.5
1.5
1
1
0
-1
-2
0.5
-3
-4
0
-70
-60
-50
-40
-30
INPUT POWER (dBm)
-20
-10
0
-60
-50
-40
-30
-20
-10
INPUT POWER (dBm)
power detectors - SMT
[1] With WCDMA 4 Carrier (TM1-64 DPCH)
[1] Data was taken at Sci4=Sci1=0V, Sci3=Sci2=5V, shortest integration time is for SCI=0000, allowed longest integration time is for SCI=1100
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery,
andRoad,
to place
orders: Analog
Devices,
For price,
delivery
and
to for
place
Hittite Microwave
Corporation,
20 Alpha
Chelmsford,
MA
01824Inc.,
responsibility
is assumed
by Analog
Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
11 - 2
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Electrical Specifications III
TA = +25 °C, Vcc = 5V, Sci4 = Sci1 = 0V, Sci3 = Sci2 = 5V, Unless Otherwise Noted
Parameter
Conditions
Min
Typ.
Max
Units
Single-Ended Input Configuration
Input Network Return Loss
Input Resistance between IN+ and IN-
up to 2.5 GHz
> 10
Between pins 3 and 4
120
VDIFFIN = VIN+ - VIN-
Input Voltage Range
dB
Ω
1.2
V
RMSOUT Output
Output Voltage Range
0.35 to 2.1
V
RMSOUT held at VCC/2
8 / -0.53
mA
Sci4=Sci3=Sci2=Sci1=0V, Cofs=1nF
28 / 0.86
10 6 V/s
For control applications with nominal
slope/intercept settings
0.35 to 2.1
V
5
MΩ
Source/Sink Current Compliance
11
Output Slew Rate (rise / fall)
VSET Input (Negative Feedback Terminal)
Power Detectors - SMT
Input Voltage Range
11 - 3
Input Resistance
SCI1-4 Inputs, ENX Logic Input (Power Down Control)
Input High Voltage
V
0.7xVCC
Input Low Voltage
0.3xVCC
V
Input High Current
1
μA
Input Low Current
1
μA
Input Capacitance
0.5
pf
Power Supply
Supply Voltage
Supply Current with no input power
Supply Current with -20 dBm
Standby Mode Supply Current
4.5
5
5.5
V
39
mA
41.6
mA
3
mA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery,
andRoad,
to place
orders: Analog
Devices,
For price,
delivery
and
to for
place
Hittite Microwave
Corporation,
20 Alpha
Chelmsford,
MA
01824Inc.,
responsibility
is assumed
by Analog
Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
RMSOUT & Error vs. Pin @ 100 MHz [1][2]
4
3
2.15
2
1.9
1.65
1
1.65
1
1.4
0
1.4
0
1.15
-1
1.15
-1
ERR +25C
ERR +85C
ERR -40C
1.9
Ideal
LOGOUT +25C
LOGOUT +85C
LOGOUT -40C
0.65
0.4
-50
-40
-30
-20
-2
0.9
-3
0.65
-4
0.4
-50
-10
-4
-40
-30
-20
-10
RMSOUT & Error vs. Pin @ 2200 MHz [1][2]
3
2.15
2
1.9
1.65
1
1.65
1
1.4
0
1.4
0
1.15
-1
1.15
-1
0.9
-2
0.9
-3
0.65
-4
0.4
ERR +25C
ERR +85C
ERR -40C
1.9
0.65
0.4
-50
-40
-30
-20
-10
-50
4
3
ERR +25C
ERR +85C
ERR -40C
2
-2
Ideal
LOGOUT +25C
LOGOUT +85C
LOGOUT -40C
-3
-4
-40
INPUT POWER (dBm)
-30
-20
-10
INPUT POWER (dBm)
RMSOUT & Error vs. Pin @ 2700 MHz [1][2]
RMSOUT & Error vs. Pin @ 3500 MHz [1][2]
3
2.15
2
1.9
1.65
1
1.65
1
1.4
0
1.4
0
1.15
-1
1.15
-1
ERR +25C
ERR +85C
ERR -40C
1.9
Ideal
LOGOUT +25C
LOGOUT +85C
LOGOUT -40C
0.65
0.4
-50
-40
-30
INPUT POWER (dBm)
-20
-2
0.9
-3
0.65
-4
0.4
-10
-50
4
3
ERR +25C
ERR +85C
ERR -40C
2
ERROR (dB)
0.9
RMSOUT (V)
2.4
ERROR (dB)
4
2.4
2.15
ERROR (dB)
Ideal
LOGOUT +25C
LOGOUT +85C
LOGOUT -40C
RMSOUT (V)
2.4
ERROR (dB)
4
2.4
2.15
11
-3
INPUT POWER (dBm)
RMSOUT & Error vs. Pin @ 1900 MHz [1][2]
RMSOUT (V)
-2
Ideal
LOGOUT +25C
LOGOUT +85C
LOGOUT -40C
INPUT POWER (dBm)
RMSOUT (V)
2
ERROR (dB)
0.9
3
ERR +25C
ERR +85C
ERR -40C
power detectors - SMT
2.15
RMSOUT (V)
2.4
ERROR (dB)
4
2.4
RMSOUT (V)
RMSOUT & Error vs. Pin @ 900 MHz [1][2]
-2
Ideal
LOGOUT +25C
LOGOUT +85C
LOGOUT -40C
-3
-4
-40
-30
-20
-10
INPUT POWER (dBm)
[1] Data was taken at Sci4=Sci1=0V, Sci3=Sci2=5V, shortest integration time is for SCI=0000, allowed longest integration time is for SCI=1100
[2] WCDMA 4 carriers input waveform
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery,
andRoad,
to place
orders: Analog
Devices,
For price,
delivery
and
to for
place
Hittite Microwave
Corporation,
20 Alpha
Chelmsford,
MA
01824Inc.,
responsibility
is assumed
by Analog
Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
11 - 4
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
RMSOUT & Error vs. Pin @ 3900 MHz [1][2]
3
2.15
2
1.9
1.65
1
1.65
1
1.4
0
1.4
0
1.15
-1
1.15
-1
2.15
ERR +25C
ERR +85C
ERR -40C
0.9
Ideal
LOGOUT +25C
LOGOUT +85C
LOGOUT -40C
0.65
0.4
-50
-40
-30
-20
-2
0.9
-3
0.65
-4
0.4
-10
4
-3
-4
-40
-30
-20
-10
Slope vs. Frequency [1][2]
80
-40
70
SLOPE (mV/dB)
+25C
+85C
-40C
-50
-60
-70
+25C
+85C
-40C
60
50
40
0
1000
2000
3000
4000
5000
30
6000
0
1000
2000
3000
4000
5000
6000
FREQUENCY (MHz)
FREQUENCY (MHz)
RMSOUT vs. Pin with WCDMA
4 Carrier @ +25 °C [1]
RMSOUT Error vs. Pin with WCDMA 4
Carrier @ +25 °C [1]
4
2.5
3
100MHz
900MHz
1900MHz
2200MHz
2700MHz
3500MHz
3900MHz
5800MHz
1.5
100MHz
900MHz
1900MHz
2200MHz
2
ERROR (dB)
2
RMSOUT (V)
-2
INPUT POWER (dBm)
Intercept vs. Frequency [1][2]
INTERCEPT (dBm)
Power Detectors - SMT
2
Ideal
LOGOUT +25C
LOGOUT +85C
LOGOUT -40C
INPUT POWER (dBm)
-80
3
ERR +25C
ERR +85C
ERR -40C
ERROR (dB)
RMSOUT (V)
1.9
RMSOUT (V)
2.4
ERROR (dB)
4
2.4
11
RMSOUT & Error vs. Pin @ 5800 MHz [1][2]
1
2700MHz
3500MHz
3900MHz
5800MHz
1
0
-1
-2
0.5
-3
0
-70
-60
-50
-40
-30
-20
INPUT POWER (dBm)
-10
0
-4
-60
-50
-40
-30
-20
-10
INPUT POWER (dBm)
[1] Data was taken at Sci4=Sci1=0V, Sci3=Sci2=5V, shortest integration time is for SCI=0000, allowed longest integration time is for SCI=1100
[2] WCDMA 4 carriers input waveform
11 - 5
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery,
andRoad,
to place
orders: Analog
Devices,
For price,
delivery
and
to for
place
Hittite Microwave
Corporation,
20 Alpha
Chelmsford,
MA
01824Inc.,
responsibility
is assumed
by Analog
Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
RMSOUT Error vs. Pin with WCDMA 4
Carrier @ -40 °C wrt +25 °C Response [1]
4
4
3
3
2
2
ERROR (dB)
1
0
100MHz
900MHz
1900MHz
2200MHz
2700MHz
3500MHz
3900MHz
5800MHz
-1
-2
-3
-4
-60
-50
-40
1
0
-1
-2
100MHz
900MHz
1900MHz
2200MHz
-3
-30
-20
-4
-60
-10
-50
INPUT POWER (dBm)
-30
-20
-10
RMSOUT Error vs. Pin with CW @ +25 °C [1]
2.5
4
3
100MHz
900MHz
1900MHz
2200MHz
2700MHz
3500MHz
3900MHz
5800MHz
1.5
100MHz
900MHz
1900MHz
2200MHz
2
ERROR (dB)
2
1
2700MHz
3500MHz
3900MHz
5800MHz
1
0
-1
-2
0.5
-3
0
-70
-60
-50
-40
-30
-20
11
INPUT POWER (dBm)
RMSOUT vs. Pin with CW @ +25 °C [1]
RMSOUT (V)
-40
2700MHz
3500MHz
3900MHz
5800MHz
-10
-4
-60
0
-50
-40
-30
-20
-10
INPUT POWER (dBm)
INPUT POWER (dBm)
RMSOUT vs. Pin w/ CW & WCDMA 4
Carrier @ 1900 MHz & +25 °C [1]
Reading Error for WCDMA 4 Carrier wrt
CW Response @ +25 °C [1]
2.4
power detectors - SMT
ERROR (dB)
RMSOUT Error vs. Pin with WCDMA 4
Carrier @ +85 °C wrt +25 °C Response [1]
1
0.8
CW
WCDMA
0.6
0.4
1.6
ERROR (dB)
RMSOUT (V)
2
1.2
0.8
0.2
0
-0.2
-0.4
100MHz
900MHz
1900MHz
2200MHz
-0.6
0.4
-0.8
0
-70
-60
-50
-40
-30
-20
INPUT POWER (dBm)
-10
0
-1
-50
-40
-30
2700MHz
3500MHz
3900MHz
5800MHz
-20
-10
INPUT POWER (dBm)
[1] Data was taken at Sci4=Sci1=0V, Sci3=Sci2=5V, shortest integration time is for SCI=0000, allowed longest integration time is for SCI=1100
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery,
andRoad,
to place
orders: Analog
Devices,
For price,
delivery
and
to for
place
Hittite Microwave
Corporation,
20 Alpha
Chelmsford,
MA
01824Inc.,
responsibility
is assumed
by Analog
Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
11 - 6
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
RMSOUT vs. Pin w/ CW & WCDMA 4
Carrier @ 1900 MHz & +85 °C [1]
Reading Error for WCDMA 4 Carrier wrt
CW Response @ +85 °C [1]
1
2.4
0.8
CW
WCDMA
0.6
0.4
1.6
ERROR (dB)
RMSOUT (V)
2
1.2
0.8
0
-0.2
-0.4
100MHz
900MHz
1900MHz
2200MHz
-0.6
0.4
11
0.2
-0.8
0
-70
-60
-50
-40
-30
-20
-10
-1
-50
0
-40
-30
-20
-10
INPUT POWER (dBm)
INPUT POWER (dBm)
RMSOUT vs. Pin w/ CW & WCDMA 4
Carrier @ 1900 MHz & -40 °C [1]
Reading Error for WCDMA 4 Carrier wrt
CW Response @ -40 °C [1]
2.4
1
0.8
2
CW
WCDMA
0.6
0.4
1.6
ERROR (dB)
RMSOUT (V)
Power Detectors - SMT
2700MHz
3500MHz
3900MHz
5800MHz
1.2
0.8
0.2
0
-0.2
-0.4
100MHz
900MHz
1900MHz
2200MHz
-0.6
0.4
-0.8
0
-70
-60
-50
-40
-30
-20
-10
-1
-50
0
-40
-30
2700MHz
3500MHz
3900MHz
5800MHz
-20
-10
INPUT POWER (dBm)
INPUT POWER (dBm)
Output Response
with SCI = 0000 @ 1900 MHz
25
2.5
RMSOUT (V)
20
1.5
15
1
10
5
0.5
RF
ON
0
RF
OFF
0
RF
OFF
RF ENABLE VOLTAGE (V)
-40 dBm
-20 dBm
2
-5
-0.5
-2
0
2
4
6
8
10
12
14
16
18
TIME (us)
[1] Data was taken at Sci4=Sci1=0V, Sci3=Sci2=5V, shortest integration time is for SCI=0000, allowed longest integration time is for SCI=1100
11 - 7
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery,
andRoad,
to place
orders: Analog
Devices,
For price,
delivery
and
to for
place
Hittite Microwave
Corporation,
20 Alpha
Chelmsford,
MA
01824Inc.,
responsibility
is assumed
by Analog
Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Typical Supply Current vs. Pin, Vcc = 5V
Input Return Loss vs. Frequency
0
-5
45
RETURN LOSS (dB)
40
+25C
+85C
-40C
35
-10
-15
-20
-25
30
-70
-60
-50
-40
-30
-20
-10
-30
0
0
1
2
INPUT POWER (dBm)
3
4
5
6
Output Ripple & Rise/Fall Time vs. Integration
Setting [Sci4,Sci3,Sci2,Sci1] in Decimal
100000
2100
Ripple with WCDMA4TM
Ripple with WCDMA1TM
Ripple with 8 Tone (1kHz seperation)
Ripple with 8 Tone (10kHz seperation)
1800
10000
1500
1000
1200
100
900
10
600
1
Rise Time
Fall Time
RISE/FALL TIME (us)
OUTPUT RIPPLE (mVp-p)
11
FREQUENCY (GHz)
0.1
300
0.01
0
0
1
2
3
4
5
6
7
8
9
10
11
12
INTEGRATION SETTLING (IN DECIMAL)
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Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
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Trademarks and registered trademarks are
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power detectors - SMT
SUPPLY CURRENT (mA)
50
11 - 8
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Absolute Maximum Ratings
Power Detectors - SMT
11
Power Supply Voltage (Vcc)
5.6V
RF Input Power
10 dBm
Input Voltage
1.2 Vp-p
Junction Temperature
125 °C
Continuous Pdiss (T = 85°C)
(Derate 32.45 mW/°C above 85°C)
1.3 W
Thermal Resistance (Rth)
(junction to ground paddle)
30.82 °C/W
Storage Temperature
-65 to +150 °C
Operating Temperature
-40 to +85 °C
ESD Sensitivity (HBM)
Class 1B
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS].
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL GROUND LEADS AND GROUND PADDLE MUST
BE SOLDERED TO PCB RF GROUND.
7. REFER TO HMC APPLICATION NOTE FOR SUGGESTED PCB LAND PATTERN.
Package Information
Part Number
Package Body Material
Lead Finish
HMC909LP4E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL Rating
MSL1
[2]
Package Marking [1]
H909
XXXX
[1] 4-Digit lot number XXXX
[2] Max peak reflow temperature of 260 °C
11 - 9
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nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
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HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Pin Descriptions
Function
Description
1, 16, 21, 23
Vcc
Power Supply. Connect supply voltage to these pins
with appropriate filtering.
2, 5, 6, 8,
11 - 13, 22
Package Base
GND
Package bottom has an exposed metal paddle that
must be connected to RF/DC ground.
3, 4
IN+, IN-
RF Input pins. See application
information for input interfacing.
7
ENX
Disable pin. Connect to GND for normal operation.
Applying voltage V>0.8xVcc will initiate power saving
mode
Interface Schematic
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One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
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11
power detectors - SMT
Pin Number
11 - 10
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Pin Descriptions (Continued)
Pin Number
Function
Description
9, 10
COFSA,
COFSB
High pass filter capacitor input. Connect a capacitor
between COFSA and COFSB to determine 3 dB
point of input signal high-pass filter.
14
VSET
Set point input for controller mode. Allows change of
output slope resulting in output power leveling.
15
RMSOUT
Logarithmic output that provides an
indication of mean square input power.
17 - 20
SCI1 - SCI4
Digitally Programmable Integration Bandwidth
Control. Input pins that control the internal
integration time constant for RMS calculation. SCI4
is the most significant bit. Set V>0.8xVcc to enable
and V RMSOUT
transfer characteristic slope of 36.9mV/dBm (at 1900 MHz), however the RMS output can be re-scaled to “magnify”
a specific portion of the input sensing range, and to fully utilize the dynamic range of the RMS output. Refer to the
section under the “log-slope and intercept” heading for details.
Due to part-to-part variations in log-slope and log-intercept, a system-level calibration is recommended to satisfy
absolute accuracy requirements: refer to the “System Calibration” section for more details.
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nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
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11 - 14
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
RF Input Interface
The IN+ and IN- pins are differential RF inputs, which are externally configured for wideband with single ended input.
Power match components are placed at these input terminals, along with DC blocking capacitors. The coupling
capacitor values also set the lower spectral boundary of the input signal bandwidth. The inputs can be reactively
matched (refer to input return loss graphs), but a resistor network should be sufficient for good wideband performance.
Wideband Single-Ended Input Interface:
Power Detectors - SMT
11
Choose the input decoupling capacitor (C3, C4) values by
first determining the lowest spectral component the power
detector is required to sense, ƒL.
Input decoupling capacitor value
≈
1
P x ƒL x 3.2
, Farads, where ƒL is in Hertz
Ex. If the power detector needs to sense down to 10MHz, the
decoupling capacitor value should be
1/(π*10E6*3.2) = 10nF
A DC bias (Vcc-1.2V) is present on the IN+ and IN- pins, and
should not be overridden
RMS Output Interface and Transient Response
The HMC909LP4E features digital input pins (SCI1-SCI4) that control the internal integration time constant. Output
transient response is determined by the digital integration controls, and output load conditions.
Shortest integration time is for SCI=0000, allowed longest integration time is for SCI=1100 (1101, 1110 and 1111 SCI
settings are forbidden states).
Using larger values of SCI will narrow the operating bandwidth of the integrator, resulting in a longer averaging time
interval and a more filtered output signal; however it will also slow the power detector’s transient response. A larger
SCI value favors output accuracy over speed. For the fastest possible transient settling times set SCI to 0000. This
configuration will operate the integrator at its widest possible bandwidth, resulting in short averaging time-interval and
an output signal with little filtering. Most applications will choose a SCI setting that maintains balance between speed
and accuracy. Furthermore, error performance over modulation bandwidth is dependent on the SCI setting.
For example modulations with relatively low frequency components and high crest factors may require higher SCI
(integration) settings.
11 - 15
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of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
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HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Table 1: Transient Response vs. SCI Setting [1]:
RMSOUT Rise Settling Time (µs) [2]
SCI4,3,2,1
Pin = -20 dBm
Pin = -40 dBm
Pin = -20 dBm
Pin = -40 dBm
Pin = -20 dBm
Pin = -40 dBm
0000
0.042
0.032
0.408
0010
0.042
0.134
0.484
0.484
1.7
1.72
0.488
5.5
0100
0.06
1.32
5.4
2.6
2.12
19.5
0110
2.6
5.55
23
10.2
9.3
86
90
1000
13
25.5
59
38
350
380
1010
48
104
208
180
1500
1600
1100
190
460
870
800
6200
6500
Rise Time[3] vs.
SCI Setting over Input Power
11
Rise Settling Time [2] vs.
SCI Setting over Input Power
10000
100000
-40 dBm
-20 dBm
0 dBm
1000
-40 dBm
-20 dBm
0 dBm
10000
100
RISE TIME (us)
RISE TIME (us)
RMSOUT Fall-time 100% -> 10% (µs)
10
1
0.1
1000
100
10
1
0.01
0.1
0
1
2
3
4
5
6
7
8
9 10
INTEGRATION SETTING (IN DECIMAL)
11
12
0
1
2
3
4
5
6
7
8
9
10
11
12
INTEGRATION SETTING (IN DECIMAL)
Fall Time [4] vs.
SCI Setting over Input Power
For increased load drive capability, consider a buffer
amplifier on the RMS output. Using an integrating
amplifier on the RMS output allows for an alternative
treatment for faster settling times. An external amplifier
optimized for transient settling can also provide
additional RMS filtering, when operating HMC909LP4E
with a lower SCI value.
100000
-40 dBm
-20 dBm
0 dBm
FALL TIME (us)
10000
power detectors - SMT
RMSOUT Rise-Time 10% -> 90% (µs)
1000
100
Following figures show how the peak-to-peak ripple
decreases with higher SCI settings along with the RF
pulse response over different modulations.
10
1
0
1
2
3
4
5
6
7
8
9
10
11
12
INTEGRATION SETTING (IN DECIMAL)
[1] Input signal is 1900 MHz CW -tone switched on and off
[2] Measured from RF switching edge to 1dB (input referred) settling of RMSOUT.
[3] Measured from 10% to 90%
[4] Measured from 100% to 10%
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Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
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11 - 16
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Residual Ripple for 1.9 GHz WiMAX OFDM
Advanced 802.16 @ SCI = 0001
100
80
1.6
1.6
60
1.4
40
1.2
20
0
1
0.8
-20
0.6
-40
RMSOUT
0.4
-60
SCI = 0000
SCI = 0001
0.2
0
50
100
150
200
250
300
350
400
450
20
0
1
-20
0.8
-40
RMSOUT
-60
SCI = 0000
SCI = 0010
0.2
-80
-100
0
500
0
50
100
150
200
250
300
350
400
450
500
TIME (us)
TIME (us)
Residual Ripple for 1.9 GHz WiMAX OFDM
Advanced 802.16 @ SCI = 0011
Residual Ripple for 1.9 GHz WiMAX OFDM
Advanced 802.16 @ SCI = 0100
100
2
100
2
1.8
80
1.8
80
1.6
60
1.6
60
1.4
40
20
0
1
-20
0.8
0.6
-40
RMSOUT
0.4
-60
SCI = 0000
SCI = 0011
0.2
RMSOUT (V)
RF
INPUT
1.2
1.4
0
50
100
150
200
250
300
350
400
450
0
-20
0.8
-40
RMSOUT
0.4
-60
SCI = 0000
SCI = 0100
0.2
-100
0
20
1
0.6
-80
40
RF
INPUT
1.2
-80
-100
0
500
0
50
100
150
200
250
300
350
400
450
500
TIME (us)
TIME (us)
Residual Ripple for 1.9 GHz WiMAX OFDM
Advanced 802.16 @ SCI = 0101
Residual Ripple for 1.9 GHz WiMAX OFDM
Advanced 802.16 @ SCI = 0110
100
100
2
1.8
80
1.6
60
1.6
60
1.4
40
0
1
0.8
-20
0.6
-40
RMSOUT
0.4
-60
SCI = 0000
SCI = 0101
0.2
-80
-100
0
0
50
100
150
200
250
300
TIME (us)
350
400
450
500
1.4
RMSOUT (V)
1.2
20
RF
INPUT
1.2
40
20
0
1
0.8
-20
0.6
-40
0.4
-60
SCI = 0000
SCI = 0110
0.2
-80
RMSOUT
0
0
50
RF INPUT VOLTAGE (mV)
80
RF INPUT VOLTAGE (mV)
1.8
RF
INPUT
RF INPUT VOLTAGE (mV)
RMSOUT (V)
1.2
0.4
-100
40
RF
INPUT
0.6
-80
0
RMSOUT (V)
1.4
RMSOUT (V)
RF
INPUT
RF INPUT VOLTAGE (mV)
Power Detectors - SMT
1.8
60
RF INPUT VOLTAGE (mV)
1.8
2
11 - 17
100
2
80
RF INPUT VOLTAGE (mV)
RMSOUT (V)
2
11
Residual Ripple for 1.9 GHz WiMAX OFDM
Advanced 802.16 @ SCI = 0010
-100
100
150
200
250
300
350
400
450
500
TIME (us)
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Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
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HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
LOG-Slope and Intercept
The HMC909LP4E provides for an adjustment of output scale with the use of an integrated operational amplifier. Logslope and intercept can be adjusted to “magnify” a specific portion of the input sensing range, and to fully utilize the
dynamic range of the RMS output.
A log-slope of 36.9mV/dB (@1900 MHz) is set by connecting RMS Output to VSET through resistor network for ß = 1
(see application schematic).
The log-slope is adjusted by applying the appropriate resistors on the RMS and VSET pins. Log-intercept is adjusted
by applying a DC voltage to the VSET pin.
Optimized slope = ß * log-slope
Optimized intercept = log-intercept – (RFBK /RSET) * VBLINE
ß=
RFBK
RFBK // RSHUNT // RSET
When RFBK=0 to set RMSOUT=VSET, then ß=1/2
If RSET is not populated, then ß = ½ * (RFBK/ (RFBK // RSHUNT)) and intercept is at nominal value.
Example: The logarithmic slope can be simply increased by choosing appropriate RFBK and RSHUNT values while
not populating the RSET resistor on the evaluation board to keep the intercept at nominal value.
Setting RFBK =4.7KΩ and RSHUNT = 2.2KΩ results in an optimized slope of:
Optimized Slope = ß * log_slope = 1.57* 36.9mV / dB
Optimized Slope = 58 mV / dB
Slope Adjustment
power detectors - SMT
11
4.5
4
High Slope
Nominal
RMSOUT (V)
3.5
3
2.5
2
Slope = 58 mV/dB
Rset = open
Rfbk = 4.7 Kohm
Rshunt = 2.2 Kohm
1.5
1
Slope = 36.9 mV/dB
Rset = open
Rfbk = 4.7 Kohm
Rshunt = 4.7 Kohm
0.5
0
-70
-60
-50
-40
-30
-20
-10
0
INPUT POWER (dBm)
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Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
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11 - 18
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Example: The logarithmic intercept can also be adjusted by choosing appropriate RFBK, RSHUNT, and RSET
values.
Setting RFBK = 4.7KΩ, RSHUNT =2.2KΩ, and RSET = 24KΩ results in an optimized slope of:
Optimized Slope = ß * log_slope = 1.67 * 36.9 mV / dB
Optimized Slope = 62 mV / dB
Optimized Intercept = log_intercept –(RFBK/RSET)*VBLINE
Optimized Intercept = log_intercept - 0.196 * VBLINE
Intercept Adjustment
11
4.5
VBLINE = -3.2 V
VBLINE = -1.6 V
VBLINE = -0.8 V
VBLINE =
0V
VBLINE = +0.8 V
VBLINE = +1.6 V
VBLINE = +3.2 V
4
RMSOUT (V)
Power Detectors - SMT
3.5
3
2.5
2
1.5
1
Rset = 24 Kohm
Rfbk = 4.7 Kohm
Rshunt = 2.2 Kohm
0.5
0
-70
-60
-50
-40
-30
-20
-10
0
INPUT POWER (dBm)
DC Offset Compensation Loop
Internal DC offsets, which are input signal dependant, require continuous cancellation. Offset cancellation is a critical
function needed for maintenance of measurement accuracy and sensitivity. The DC offset cancellation loop performs
this function, and its response is largely defined by the capacitance (COFS) connected between COFSA, COFSB
pins.
COFS sets the loop bandwidth of the DC offset compensations. Higher COFS values are required for measuring
lower RF frequencies. The optimal loop bandwidth setting will allow internal offsets to be cancelled at a minimally
acceptable speed.
DC Offset Cancellation Loop ≈
Bandwidth , Hz
For example: loop bandwidth for DC cancellation with COFS = 1nF, bandwidth is ~62 kHz
11 - 19
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of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
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• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
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HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Standby Mode
The ENX can be used to force the power detector into a low-power standby mode. As ENX is deactivated, power is
restored to all of the circuits. There is no memory of previous conditions. Coming-out of stand-by, internal integration
and COFS capacitors will require recharging, so if large SCI values have been chosen, the wake-up time will be
lengthened.
Modulation Performance – Crest factor performance
The HMC909LP4E can detect modulated signals with very high crest factors accurately.
For example, up to 2.7 GHz, a modulated RF signal with a crest factor of 15 dB can be detected with 0.3 dB error.
11
RMSOUT Error vs.
Crest Factor over Frequency
RMSOUT ERROR (dB)
900 MHz error from CW (-22 dBm)
1900 MHz error from CW (-22 dBm)
2700 MHz error from CW (-22 dBm)
3900 MHz error from CW (-22 dBm)
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
3
4
5
6
7
8
9
10
11
12
13
14
15
CREST FACTOR (dB)
System Calibration
Due to part-to-part variations in log-slope and log-intercept, a system-level calibration is recommended to satisfy
absolute accuracy requirements. When performing this calibration, choose at least two test points: near the top end
and bottom-end of the measurement range. It is best to measure the calibration points in the regions (of frequency
and amplitude) where accuracy is most important. Derive the log-slope and log-intercept, and store them in nonvolatile memory.
For example if the following two calibration points were measured at 2.2 GHz:
power detectors - SMT
1
0.8
With RMSOUT = 1.81V at Pin= -20 dBm,
and RMSOUT = 1.03V at Pin= -40 dBm
slope calibration constant = SCC
SCC = (-40+20)/(1.03-1.81) = 25.64 dB/V
intercept calibration constant = ICC
ICC = Pin – SCC*RMSOUT = -20 - 25.64 * 1.81 = -66.41 dBm
Now performing a power measurement at -30 dBm:
RMSOUT measures 1.40V
[Measured Pin] = [Measured RMSOUT]*SCC + ICC
[Measured Pin] = 1.40 * 25.64 - 66.41 = -30.51 dBm
An error of only 0.51 dB
Factory system calibration measurements should be made using an input signal representative of the application. If
the power detector will operate over a wide range of frequencies, choose a central frequency for calibration.
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery,
andRoad,
to place
orders: Analog
Devices,
For price,
delivery
and
to for
place
Hittite Microwave
Corporation,
20 Alpha
Chelmsford,
MA
01824Inc.,
responsibility
is assumed
by Analog
Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
11 - 20
HMC909LP4E
v02.0511
RMS POWER DETECTOR
SINGLE-ENDED, DC - 5.8 GHz
Layout Considerations
• Mount RF input coupling capacitors close to the IN+ and IN- pins.
• Solder the heat slug on the package underside to a grounded island which can draw heat away from the die with
low thermal impedance. The grounded island should be at RF ground potential.
• Connect power detector ground to the RF ground plane, and mount the supply decoupling capacitors close
to the supply pins.
Definitions:
11
• Log-slope: slope of PIN –> RMSOUT transfer characteristic. In units of mV/dB
• Log-intercept: x-axis intercept of PIN –> RMSOUT transfer characteristic. In units of dBm.
• RMS Output Error: The difference between the measured PIN and actual PIN using a line of best fit.
Power Detectors - SMT
[measured_PIN] = [measured_ RMSOUT] / [best-fit-slope] + [best-fit-intercept], dBm
11 - 21
• Input Dynamic Range: the range of average input power for which there is a corresponding RMS output
voltage with “RMS Output Error” falling within a specific error tolerance.
• Crest Factor: Peak power to average power ratio for time-varying signals.
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
For price, delivery,
andRoad,
to place
orders: Analog
Devices,
For price,
delivery
and
to for
place
Hittite Microwave
Corporation,
20 Alpha
Chelmsford,
MA
01824Inc.,
responsibility
is assumed
by Analog
Devices
its use, orders:
nor for any infringements
of patents or other
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
rights of third parties that may result from its use. Specifications subject to change without notice. No
Phone: 978-250-3343
Fax: 978-250-3373 Phone:
Order781-329-4700
On-line at www.hittite.com
• Order online at www.analog.com
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Application
Support: Phone: 1-800-ANALOG-D
Trademarks and registered trademarks are
the property of their
respective owners.
Application
Support:
Phone: 978-250-3343
or apps@hittite.com
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