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ADL5904 Datasheet(PDF) 25 Page - Analog Devices

Part # ADL5904
Description  DC to 6 GHz, 45 dB TruPwr Detector with Envelope Threshold Detection
PDF  27 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADL5904 Datasheet(HTML) 25 Page - Analog Devices

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Data Sheet
ADL5904
Rev. B | Page 25 of 27
APPLICATIONS INFORMATION
EVALUATION BOARD SCHEMATIC AND
CONFIGURATION OPTIONS
The ADL5904-EVALZ is a fully populated, 4-layer, FR4-
based evaluation board. Apply a power supply of 3.3 V to the
VPOS and GND test loops. To exercise the RMS detector
portion of the circuit, apply the RF signal to be measured to the
RFIN SMA connector. The corresponding rms output voltage is
then available on the VRMS SMA connector and on the TP1
test point.
To operate the threshold detection circuitry, apply the RF signal
that is being monitored again to the RFIN SMA connector. Apply
the dc threshold voltage that causes the circuit to trip to the
VIN_N SMA connector or to the TPVIN_N yellow test point.
Reset the internal SR flip flop by pressing the RST button.
Detailed configuration options for the evaluation board are
listed in Table 7.
VRMS
RED
JOHNSON142-0701-851
VPOS
VPOS
Q
DECL
VPOS
5
4
3
2
1
RFIN
JOHNSON142-0701-851
DNI
L1
TBD0402
TBD0402
R3
DNI
TBD0402
C2
DNI
DNI
TBD0402
L2
R1
TBD0402
DNI
YEL
TCAL
C5
DNI
TBD0402
R8
82.5Ω
0.47µF
C4
R10
0Ω
1
GND
BLK
C3
0.1µF
R6
4.02Ω
C12
0.1µF
ADL5904ACPZN
DUT1
16
15
14
13
12
10
9
4
3
1
R2
0Ω
0Ω
R9
VIN_N
1
2 3 4 5
C17
DNI
0.1µF
1
TPVIN_N
YEL
R4
10kΩ
1.1kΩ
R28
3
4
2
1
RST
B3S1000
TBD0603
C1 DNI
R31
10kΩ
2
3
1
S1
09-03-201-02
100pF
C6
0.1µF
C7
VPOS
1
1
ENBL
YEL
10nF
C14
YEL
TP1
1
C16
TBD0603
DNI
0
R16
R21
0Ω
826936-2
2
1
QX
5 4 3 2
1
JOHNSON142-0701-851
JOHNSON142-0701-851
1
2
3
4
5
C15
TBD0603
DNI
R19
0Ω
826936-2
QX
1
2
5 4 3 2
1
Q
JOHNSON142-0701-851
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
VIN–
RST
ENBL
QBAR
Q
VRMS
CRMS
DECL
VCAL
RFIN
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
AGND1
Q
Q
Figure 54. Evaluation Board Schematic



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