adl5505 Analog Devices, Inc., adl5505 Datasheet - Page 19

• Manufacturer Part Number: adl5505
• Description: 450 Mhz To 6000 Mhz Trupwr Detector Adl5505
• Manufacturer: Analog Devices, Inc.

Table 4. Evaluation Board Configuration Options
Component
VPOSB, GNDB
C1B, C2B, C7B, C8B,
C9B
R7B
C4B, R2B, R3B
P1, R5B, R6B
VPOSB
Description
Ground and supply vector pins.
Power supply decoupling. Nominal supply decoupling of 0.1 μF and 100 pF.
RF input interface. The 75 Ω resistor at R7B combines with the ADL5505 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 C4B
produce a low-pass filter to reduce output ripple of the VRMS output. The output
can be scaled down using the resistor divider pads, R2B and R3B.
Alternate interface. The end connector, P1, allows access to various ADL5505 signals.
These signal paths are only used during factory test and characterization.
RFINB
R7B
75Ω
(P1 – B12)
Figure 45. Layout of Evaluation Board, Component Side
Figure 44. Evaluation Board Schematic
1
2
VPOS
RFIN
ADL5505
(OPEN)
(OPEN)
Rev. 0 | Page 19 of 20
C8B
C7B
COMM
VRMS
4
3
R3B
0Ω
C4B
(OPEN)
R2B
(OPEN)
R5B
(OPEN)
Default Condition
Not applicable
C1B = 100 pF (Size 0402)
C2B = 0.1 μF (Size 0402)
C7B = C8B = open (Size 0805)
C9B = open (Size 0402)
R7B = 75 Ω (Size 0402)
R3B = 0 Ω (Size 0402)
R2B = open (Size 0402)
C4B = open (Size 0402)
P1 = not installed
R5B = R6B = open (Size 0402)
VRMSB
ADL5505