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ALM-38140 Datasheet(PDF) 2 Page - Broadcom Corporation.

Part # ALM-38140
Description  50MHz ??4GHz PIN Diode Variable Attenuator Module
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Manufacturer  BOARDCOM [Broadcom Corporation.]
Direct Link  http://www.broadcom.com
Logo BOARDCOM - Broadcom Corporation.

ALM-38140 Datasheet(HTML) 2 Page - Broadcom Corporation.

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ALM-38140 Absolute Maximum Rating [1] TA = 25°C
Symbol
Parameter
Unit
Absolute Maximum
Isupply, max
Supply Current
mA
18.0
Icontrol, max
Control Current
mA
33.4
Pin, max
RF Input Power
dBm
27dBm CW, 36dBm with
12.5% duty cycle
Pdiss
Total Power Dissipation
W
0.3
Tj
Junction Temperature
°C
150
Tstg
Storage Temperature
°C
-60 to 150
Thermal Resistance [2] θjc = 106.3°C/W
(Vc = 1V, Vsupply = 2.7V, Tc = 85°C)
Notes:
1. Operation in excess of any one of these
limits may result in permanent damage to the
device.
2. Thermal resistance is measured from junction
to case using Infra-Red method.
Electrical Specifications, Vsupply = 2.7V, TA = 25°C, Z0 = 50Ω
Symbol
Parameter and Test Condition
Frequency (MHz)
Unit
Min
Typ
Max
Isupply
Supply Current drain (Vcontrol = 1V)
mA
2.5
Icontrol
Control Current drain (Vcontrol = 5V)
mA
20.5
S21
Maximum Attenuation (Vcontrol = 1V)
900
dB
42.0
S21
Maximum Attenuation (Vcontrol = 1V)
1900
dB
36.0
39.0
S21
Insertion Loss (Vcontrol = 5V)
900
dB
2.8
S21
Insertion Loss (Vcontrol = 5V)
1900
dB
3.2
3.7
Dynamic Range
900
dB
38
Dynamic Range
1900
dB
33
36.5
IRL
Input Return Loss (Vcontrol = 5V)
1900
dB
10
14.5
ORL
Output Return Loss (Vcontrol = 5V)
1900
dB
10
13.5
IIP3 [5]
Input Third Order Intercept Point
900
dBm
50
IIP3 [5]
Input Third Order Intercept Point
1900
dBm
50
IP1dB [6]
Input Power at P1dB Compression (Vcontrol = 5V)
900
dBm
32
IP1dB [6]
Input Power at P1dB Compression (Vcontrol = 5V)
1900
dBm
33
Phase Shift (Vcontrol = 1V)
1900
degrees
10.5
Notes:
4. Data above is obtained using demo board shown in Figure 32 and 33.
5. 2-tone IIP3 test condition: FRF1, FRF2 = 1.1MHz separation, Input power = 22dBm
6. IP1dB measured with 12.5% duty cycle.
7. The performance above obtained with phase compensation inductor value based on the table 1 below.
8. Use proper biasing, heat sink and de-rating to ensure maximum channel temperature is not exceeded. See absolute maximum ratings and
application note (if applicable) for more details.


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