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PDF ADL5902 Data sheet ( Hoja de datos )
| Número de pieza | ADL5902 | |
| Descripción | Detector | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ADL5902 (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
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FEATURES
Accurate rms-to-dc conversion from 50 MHz to 9 GHz
Single-ended input dynamic range of 65 dB
No balun or external input matching required
Waveform and modulation independent, such as
GSM/CDMA/W-CDMA/TD-SCDMA/WiMAX/LTE
Linear-in-decibels output, scaled 53 mV/dB
Transfer function ripple: <±0.1 dB
Temperature stability: <±0.3 dB
All functions temperature and supply stable
Operates from 4.5 V to 5.5 V from −40°C to +125°C
Power-down capability to 1.5 mW
Pin-compatible with the 50 dB dynamic range AD8363
APPLICATIONS
Power amplifier linearization/control loops
Transmitter power controls
Transmitter signal strength indication (TSSI)
RF instrumentation
GENERAL DESCRIPTION
The ADL5902 is a true rms responding power detector that has
a 65 dB measurement range when driven with a single-ended
50 Ω source. This feature makes the ADL5902 frequency
versatile by eliminating the need for a balun or any other form
of external input tuning for operation up to 9 GHz.
The ADL5902 provides a solution in a variety of high frequency
systems requiring an accurate measurement of signal power.
Requiring only a single supply of 5 V and a few capacitors, it is
easy to use and capable of being driven single-ended or with a
balun for differential input drive. The ADL5902 can operate
from 50 MHz to 9 GHz and can accept inputs from −62 dBm to
at least +3 dBm with large crest factors, such as GSM, CDMA,
W-CDMA, TD-SCDMA, WiMAX, and LTE modulated signals.
The ADL5902 can determine the true power of a high
frequency signal having a complex low frequency modulation
envelope or can be used as a simple low frequency rms
voltmeter. Used as a power measurement device, VOUT is
connected to VSET. The output is then proportional to the
50 MHz to 9 GHz
65 dB TruPwr Detector
ADL5902
FUNCTIONAL BLOCK DIAGRAM
VPOS
3
POS
10
ADL5902
TEMPERATURE
SENSOR
8 TEMP
INHI 14
INLO 15
LINEAR-IN-dB VGA
(NEGATIVE SLOPE)
NC 2
IDET
X2
X2
ITGT
7 VSET
G=5
6 VOUT
NC 16
NC 13
BIAS AND POWER- VREF
DOWN CONTROL 2.3V
1
TADJ/PWDN
11 12
VREF
VTGT
Figure 1.
26pF
5 CLPF
94
COMM COMM
logarithm of the rms value of the input. In other words, the
reading is presented directly in decibels and is scaled 1.06 V per
decade, or 53 mV/dB; other slopes are easily arranged. In
controller mode, the voltage applied to VSET determines the
power level required at the input to null the deviation from the
set point. The output buffer can provide high load currents.
The ADL5902 has 1.5 mW power consumption when powered
down by a logic high applied to the PWDN pin. It powers up
within approximately 5 μs to its nominal operating current of
73 mA at 25°C. The ADL5902 is supplied in a 4 mm × 4 mm,
16-lead LFCSP for operation over the wide temperature range
of −40°C to +125°C.
The ADL5902 is also pin-compatible with the AD8363, 50 dB
dynamic range TruPwr™ detector. This feature allows the
designer to create one circuit layout for projects requiring
different dynamic ranges. A fully populated RoHS-compliant
evaluation board is available.
Rev. 0
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. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2010 Analog Devices, Inc. All rights reserved.
1 page  
Parameter
Deviation vs. Temperature
Logarithmic Slope
Logarithmic Intercept
5.8 GHz
±1.0 dB Dynamic Range
Maximum Input Level, ±1.0 dB
Minimum Input Level, ±1.0 dB
Deviation vs. Temperature
Logarithmic Slope
Logarithmic Intercept
OUTPUT INTERFACE
Output Swing, Controller Mode
Current Source/Sink Capability
Voltage Regulation
Output Noise
Rise Time
Fall Time
SETPOINT INPUT
Voltage Range
Input Resistance
Logarithmic Scale Factor
Logarithmic Intercept
TEMPERATURE COMPENSATION
Input Voltage Range
Input Bias Current
Input Resistance
VOLTAGE REFERENCE
Output Voltage
Temperature Sensitivity
Short-Circuit Current Source/
Sink Capability
Voltage Regulation
Test Conditions
Deviation from output at 25°C
−40°C < TA < +85°C; PIN = 0 dBm
−40°C < TA < +85°C; PIN = −40 dBm
−40°C < TA < +125°C; PIN = 0 dBm
−40°C < TA < +125°C; PIN = −40 dBm
−40 dBm < PIN < 0 dBm; calibration at −30 dBm
and 0 dBm
−40 dBm < PIN < 0 dBm; calibration at −30 dBm
and 0 dBm
Min
CW input, TA = +25°C, VTADJ = 0.95 V
Calibration at −50 dBm, −30 dBm, and 0 dBm
Calibration at −50 dBm, −30 dBm, and 0 dBm
Deviation from output at 25°C
−40°C < TA < +85°C; PIN = 0 dBm
−40°C < TA < +85°C; PIN = −30 dBm
−40°C < TA < +125°C; PIN = 0 dBm
−40°C < TA < +125°C; PIN = −30 dBm
−30 dBm < PIN < 0 dBm; calibration at −30 dBm
and 0 dBm
−30 dBm < PIN < 0 dBm; calibration at −30 dBm
and 0 dBm
VOUT (Pin 6)
Swing range minimum, RL ≥ 500 Ω to ground
Swing range maximum, RL ≥ 500 Ω to ground
ILOAD = 8 mA, source/sink
RFIN = 2.14 GHz, −20 dBm, fNOISE = 100 kHz,
CLPF = 220 pF
Transition from no input to 1 dB settling at
PIN = −10 dBm, CLPF = 220 pF
Transition from −10 dBm to off (1 dB of final value),
CLPF = 220 pF
VSET (Pin 7)
Log conformance error ≤ 1 dB, minimum 2.14 GHz
Log conformance error ≤ 1 dB, maximum 2.14 GHz
f = 2.14 GHz
f = 2.14 GHz
Pin TADJ/PWDN (Pin 1)
VTADJ = 0.4 V
VTADJ = 0.4 V
VREF (Pin 11)
PIN = −55 dBm
25°C ≤ TA ≤ 125°C
−15°C ≤ TA ≤ +25°C
−40°C ≤ TA ≤ −15°C
25°C ≤ TA ≤ 125°C
−40°C ≤ TA < +25°C
TA = 25°C, ILOAD = 2 mA
0
Typ
0.2/0
−0.2/+0.4
+0.2/−0.3
−0.2/+0.4
49.6
−63.1
61
9
−52
−0.8/0
−1.3/+0.1
−1.6/0
−1.3/+0.1
42.7
−54.1
0.03
4.8
+0.2/−0.2
25
3
25
3.5
0.23
72
52.4
−62.9
2
200
2.3
−0.16
0.045
−0.04
4/0.05
3/0.05
−0.4
ADL5902
Max Unit
dB
dB
dB
dB
mV/dB
dBm
dB
dBm
dBm
dB
dB
dB
dB
mV/dB
dBm
10/10
V
V
mA
%
nV/√Hz
µs
µs
V
V
kΩ
mV/dB
dBm
VS V
µA
kΩ
V
mV/°C
mV/°C
mV/°C
mA
mA
%
Rev. 0 | Page 5 of 28
5 Page 
6.0
TADJ = 0.5V
5.5 CALIBRATION AT 0dBm, –40dBm, AND –60dBm
6
5
5.0 4
4.5 3
4.0 2
3.5 1
3.0 0
2.5 –1
2.0 –2
1.5 –3
1.0 –4
0.5 –5
0
–60 –50 –40 –30 –20 –10
PIN (dBm)
0
–6
10
Figure 15. Typical VOUT and Log Conformance Error with Respect to 25°C Ideal
Line over Temperature vs. Input Amplitude at 3.5 GHz, CW
3.0
TADJ = 0.95V
CALIBRATION AT 0dBm, –30dBm, AND –50dBm
2.5
6
5
4
3
2.0 2
1
1.5 0
–1
1.0 –2
–3
0.5 –4
–5
0 –6
–60 –50 –40 –30 –20 –10
0
10
PIN (dBm)
Figure 16. Typical VOUT and Log Conformance Error with Respect to 25°C Ideal
Line over Temperature vs. Input Amplitude at 5.8 GHz, CW
350
REPRESENTS 1900
PARTS FROM 3 LOTS
300
250
200
150
100
50
0
2.65 2.70 2.75 2.80 2.85 2.90 2.95 3.00 3.05
VOUT (V)
Figure 17. Distribution of VOUT, PIN = −10 dBm, 900 MHz
ADL5902
6.0
VTADJ = 0.5V
5.5 REPRESENTS 55 DEVICES FROM 2 LOTS
5.0
6
5
4
4.5 3
4.0 2
3.5 1
3.0 0
2.5 –1
2.0 –2
1.5 –3
1.0 –4
0.5 –5
0
–60 –50 –40 –30 –20 –10
PIN (dBm)
0
–6
10
Figure 18. Distribution of Error with Respect to 25°C over Temperature vs.
Input Amplitude, CW, Frequency = 3.5 GHz
3.0
VTADJ = 0.95V
REPRESENTS 55 DEVICES FROM 2 LOTS
6
5
2.5 4
3
2.0 2
1
1.5 0
–1
1.0 –2
–3
0.5 –4
–5
0
–60 –50 –40 –30 –20 –10
0
–6
10
PIN (dBm)
Figure 19. Distribution of Error with Respect to 25°C over Temperature vs.
Input Amplitude, CW, Frequency = 5.8 GHz
350
REPRESENTS 1900
PARTS FROM 3 LOTS
300
250
200
150
100
50
0
0.20 0.25 0.30 0.35 0.40 0.45 0.50
VOUT (V)
Figure 20. Distribution of VOUT, PIN = −60 dBm, 900 MHz
Rev. 0 | Page 11 of 28
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet ADL5902.PDF ] | |
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