DR65-0002 Datasheet, PDF (2/4 Pages) Tyco Electronics – Linear Driver for PIN Diode Attenuators

DR65-0002
Linear Driver for
PIN Diode Attenuators
Rev. V5
Figure 1. Linear Attenuator Schematic
+Vcc
RFin
R1
Vcontrol
(0 to 4V)
39K
R2 680
14
4
IN
C1
.01 µF
12
DR65-0002
1,3,4
2
16,14,13
7
ATTENNUATOR
3
R3
(PTCT)
330
R4
360
REF
5
5,6,8
10
9,11,12
NOTES:
TRANSFER FUNCTION IS 7.5 dB/V
Vcontrol IS 0V to 4.0V
+Vcc IS 5.0V ± 5%
R3 IS A POSITIVE TEMPERATURE COEFFICIENT THERMISTOR
ATTENUATOR IS AT10-0009 OR AT10-0017
RFoutput
SCHEMATIC
LINEAR ATTENUATOR
Figure 2. Typical Attenuation Error
MADR-007D09R86-050-001002 DDrriivveerr wwiitthh MAAT1A0V--000017709V0V-0A00100 VVA
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
-1.5
-2.0
0
3
6
9
12
15
18
21
24
27
30
Frequency: 1960 M Hz
Vco nt: 0 to 4.0V
Attenuation (dB)
2
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