adl5504 Analog Devices, Inc., adl5504 Datasheet - Page 21

• Manufacturer Part Number: adl5504
• Description: 450 Mhz To 6000 Mhz Trupwr Detector
• Manufacturer: Analog Devices, Inc.

Table 4. Evaluation Board Configuration Options
Component
VPOSA, GNDA
C1A, C2A, C7A, C8A,
C9A, C5, C6
C3A
R7A
C4A, R2A, R3A
SW1A, R4A, R10A, P2
P1, R1A, R5A, R6A,
R8A, R9A
Description
Ground and supply vector pins.
Power supply decoupling. Nominal supply decoupling of 0.01 μF and 100 pF.
Filter capacitor. The internal rms averaging capacitor can be augmented by placing
additional capacitance in C3A.
RF input interface. The 75 Ω resistor at R7A combines with the ADL5504 internal
input impedance to give a broadband input impedance of around 50 Ω.
Output filtering. The combination of the internal 100 Ω output resistance and C4A
produce a low-pass filter to reduce output ripple of the VRMS output. The output
can be scaled down using the resistor divider pads, R2A and R3A.
Device enable. When the SW1A is set to the on position, the ENBL pin is connected to the
supply and the ADL5504 is in enable mode. In the opposite switch position, the ENBL pin
is grounded (through the 0 Ω resistor) putting the device in power-down mode.
Alternate interface. The end connector, P1, allows access to various ADL5504 signals.
These signal paths are only used during factory test and characterization.
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Default Condition
Not applicable
C1A = 100 pF (Size 0402)
C2A = 0.1 μF (Size 0402)
C7A = C8A = open (Size 0805)
C9A = open (Size 0402)
C5 = C6 = open (Size 0402)
C3A = 10 nF (Size 0402)
R7A = 75 Ω (Size 0402)
R3A = 0 Ω (Size 0402)
R2A = open (Size 0402)
C4A= open (Size 0402)
R4A = 0 Ω (Size 0402)
R10A = open (Size 0402)
SW1A = on position
P2 = not installed
P1 = not installed
R1A = R5A = open (Size 0402)
R6A = R9A = open (Size 0402)
R8A = open (Size 0805)
ADL5504