DEMO-ALM-38140 Datasheet, PDF (12/16 Pages) Broadcom Corporation. – 50MHz – 4GHz PIN Diode Variable Attenuator Module

Demo board Layout
0.6000
0.7000
1.1552
1.1552
0.4000 0.4000
* Dimensions in mm
123 4
DC Pin Configuration
Pin 1 – Vsupply
Pin 2, 3 – GND
Pin 4 – Vcontrol
Figure 34. Demo board Layout
Notes:
1. PCB material used is 10 mils Rogers RO4350, with FR4 backing for mechanical strength.
2. The phase compensation coil values given in Table 1 are based on the trace layout on demo board shown in Figure 33.
Trace layout different from that specified in Figure 33, will require different values for the phase compensation coil.
3. Pad layout for phase compensation coil shown in Figure 33 is based on 0402 size.
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