S-band Phase Shifter / Switch
Phase Shifter Control Interface
CHP2085
The 5 bits phase shifter command is actuated by the 8 voltage control pads
State = 1 for Vgi = 0V (high level), State = 0 for Vgi = -5.5V (low level)
Nominal phase state
°
0
11.25
22.50
33.75
45
56.25
67.50
78.75
90
180
(0)
(π/16)
(π/8)
(π/8 +
π/16)
(π/4)
(π/4 +
π/16)
(π/4 +
π/8)
(π/4 +
π/8
+
π/16)
(π/2)
(π)
Bond pads (1)
H9
B9
H4
B4
1
1
1
1
1
1
1
1
0
1
0
0
0
0
0
0
0
0
0
1
0
1
1
1
1
1
0
0
0
0
1
1
0
0
0
0
0
1
1
1
1
0
0
1
H8
1
1
1
1
1
1
1
1
1
0
0
B8
0
0
0
0
0
0
0
0
0
1
1
B2
0
0
1
1
0
0
1
1
0
0
1
BH1
0
1
0
1
0
1
0
1
0
0
1
348.75 (π +
π/2
+
π/4
+
π/8
+
π/16)
(1)
Terminology :
B = Low pass, H = High pass, BH = Low/High pass
1 = 11°5, 2 = 22.5°, 4 = 45°, 9 = 90°, 8 = 180°
Simplified Schematic
B9
RFin
90° bit
45° bit
11,25° bit
BH1
H4
B4
H9
B2
RFout1
Switch
22,5° bit
180° bit
B8
H8
P1
P2
RFout2
Ref. : DSCHP20850046 - 15-feb.-00
5/6
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 ]
