DEMO-HSMP-38X6 Datasheet, PDF (3/6 Pages) Broadcom Corporation. – Quad PIN Diode π Attenuator 300 kHz to 4 GHz in SOT 25 Package

In/Out
C3
Vc
R3
C1
HSMP-3816
Iseries
C2
Ishunt
R1
R4
R4
R2
C4
R5 _C5
V+
Figure 1. Wideband Quad PIN Diode π Attenuator Circuit
Typical Performance Curves for Single Diode@ Tc = +25^oC,
In/Out
10000
1000
TA = +85˚C
TA = +25˚C
TA = - 55˚C
100
10
1
0.01
0.10
1.00
10.00
IF - Forward Bias Current (mA)
Figure 3. RF Resistance vs. Forward Bias Current
100.00
Vc
Via Hole
to GND
C3
R3
C1
Via Hole
to GND
R1
ATx
C2
R2
C4
R4
C5
R4
R5
Via Hole
to GND
V+
Figure 2. Circuit Board Layout
Component
R1,R2
R3
R4
R5
C1-C5
Value
560 Ohm
330 Ohm
1500 Ohm
680 Ohm
47000 pF
100.00
10.00
1.00
0.10
0.01
0
+125°C
+25°C - 50°C
0.2
0.4
0.6
0.8
VF- Forward Voltage (V)
Figure 4. Forward Current vs. Forward Voltage
1
1.2
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0
4
8
12
Reverse Voltage (V)
Figure 5. RF Capacitance vs Reverse Bias
F=1 MHz
F=10 MHz
16
20