6-18GHz Digital Variable Amplifier
CHA3512
Absolute Maximum Ratings
Tamb. = 25° (1)
C
Symbol
Vd
Id
Vg
Vc
Pin
Tch
Ta
Tstg
Parameter
Maximum Drain bias voltage ( Pads B, D)
Drain bias current with Vd=4.5V
Gate bias voltage (Pads A,C)
Attenuator bit & SPDT control voltage
Maximum input power overdrive (2)
Maximum channel temperature
Operating temperature range
Storage temperature range
Values
+5
300
-2 to +0.4
-7 to +0.6
+20.0
+175
-40 to +70
-55 to +125
Unit
V
mA
V
V
dBm
°
C
°
C
°
C
(1) Operation of this device above anyone of these parameters may cause permanent damage.
(2) Duration < 1s.
Thermal Resistance channel to ground paddle =123°
C/W for Tamb. = +70°
C.
LNA Control interface
The attenuator state is controlled by 2 voltages. The SPDT switch is controlled by 2 voltages.
state
Theoretical
attenuation
(dB)
Voltage CONTROL
PAD
20A
(V)
20B
(V)
E
(V)
Switch control
F
(V)
0
1
2
0 référence
20
Isolation
-5
0
-5
0
-5
0
-5
-5
0
0
0
-5
Ref. : DSCHA3512-8144 - 23 May 08
3/10
Specifications subject to change without notice
Route Départementale 128 , B.P.46 - 91401 ORSAY Cedex - FRANCE
Tel.: +33 (0)1 69 33 03 08 - Fax : +33 (0)1 69 33 03 09
UMS [ UNITED MONOLITHIC SEMICONDUCTORS ]
