Document
CHS5104-99F
DC-4GHz reflective SPDT
GaAs Monolithic Microwave IC
Description
The CHS5104-99F is a monolithic FET based reflective switch. It is designed for a wide range of applications, from defense to commercial communication systems. The circuit is manufactured with a pHEMT process, 0.25µm gate length, via holes through the substrate, air bridges and electron beam gate lithography. It is available in chip form.
Main Features
■ Broadband performance: DC-4GHz ■ Low insertion loss: 0.5dB@4GHz ■ Isolation: 38dB@2GHz
30dB@4GHz ■ Return loss: 20dB@2GHz
13dB@4GHz ■ Input P1dB: 30dBm ■ Chip size: 0.8x0.8x0.07mm3
Main Electrical Characteristics
Tamb.= +25°C
Symbol
Parameter
Freq Frequency range
IL On state insertion loss
ISOL Off state isolation
RL On state return loss
IP1dB Input Power @1dB gain compression
Min Typ Max Unit DC 4 GHz
0.5 dB 35 dB 20 dB 30 dBm
Ref. : DSCHS51043168 - 17 Jun 13
1/12 Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France
Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
CHS5104-99F
DC-4GHz reflective SPDT
Electrical Characteristics (1)
Tamb.= +25°C, specifications are given for 50Ω source and load impedances.
Symbol
Parameter
Condition
Min Typ Max
Freq Frequency range
DC 4
IL
On state insertion loss (2)
DC - 2GHz
0.25
DC - 4GHz
0.5
ISOL Off state isolation
DC - 2GHz
38
DC - 4GHz
30
RL On state input and output DC - 2GHz
return losses
DC - 4GHz
20 13
VH Control voltage high level
0 0.5
VL Control voltage low level
-8 -5
IP1dB Input Power @1dB gain Freq. >0.5GHz
compression.
VL=-5V/VH=0V
30
VL=-8V/VH=0V
33
Ton / Toff Switching time
50% control to 90% RF, and 50% control to
10% RF
10
Ic_L Current consumption on the control supply voltage
VH= 0V VL=-5V VL=-8V
40 20 200
Unit GHz dB dB dB
V dBm
ns
µA
(1) These values are representative of on-board measurements with a typically bonding wire
of 1nH at each RF ports. (2) Variation rate of insertion loss with temperature in the range -55°C to +125°C: -0.002dB/°C
Ref. : DSCHS51043168 - 17 Jun 13
2/12 Specifications subject to change without notice
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
DC-4GHz reflective SPDT
CHS5104-99F
Absolute Maximum Ratings (1)
Tamb.= +25°C
Symbol
Parameter
Values
Unit
VH High level control voltage
0.8 V
VL Low level control voltage Pin Maximum peak input power overdrive (2)
-10 V 38 dBm
Tj Junction temperature
175 °C
Ta Operating temperature range
-55 to +125
°C
Tstg Storage temperature range
-55 to +150
°C
(1) Operation of this device above anyone of these parameters may cause permanent damage.
(2) Duration < 1s.
SPDT truth table (complementary logic)
PAD A VH VL
PAD B VL VH
Electrical path RFC to RF1 ON OFF
Electrical path RFC to RF2 OFF ON
Ref. : DSCHS51043168 - 17 Jun 13
3/12 Specifications subject to change without notice
Bât. Charmille - Parc SILIC - 10, Avenue du Québec - 91140 VILLEBON-SUR-YVETTE - France Tel.: +33 (0) 1 69 86 32 00 - Fax: +33 (0) 1 69 86 34 34
CHS5104-99F
DC-4GHz reflective SPDT
Typical on-wafer Sij parameters
Tamb.= +25°C, Bias Conditions : VL = -5V, VH = 0V, ON-state (RFC-RF1 path or RFC-RF2 path)
Freq
S11 PhS11 S12 PhS12 S21 PhS21 S22 PhS22
(GHz) (dB) (°) (dB) (°) (dB) (°) (dB) (°)
0.2 -31.10 -105.7 -0.18 -2.0 -0.19 -2.0 -31.06 -105.2
0.4 -25.37 -101.3 -0.20 -3.8 -0.20 -3.8 -25.40 -101.0 0.6 -21.97 -100.9 -0.22 -5.7 -0.22 -5.7 -21.97 -100.5
0.8 -19.55 -102.1 -0.24 -7.6 -0.24 -7.6 -19.51 -101.1
1.0 -17.68 -103.4 -0.27 -9.4 -0.28 -9.4 -17.62 -102.2
1.2 -16.21 -105.0 -0.31 -11.2 -0.32 -11.2 -16.15 -103.7
1.4 -14.82 -106.1 -0.34 -13.1 -0.35 -13.1 -14.81 -104.7 1.6 -13.70 -107.5 -0.38 -15.0 -0.39 -15.0 -13.75 -106.1 1.8 -12.72 -109.3 -0.43 -16.9 -0.44 -16.9 -12.69 -107.4
2.0 -11.86 -111.2 -0.50 -18.6 -0.50 -18.7 -11.84 -109.2
2.2 -11.04 -113.6 -0.56 -20.2 -0.56 -20.2 -10.96 -110.1
2.4 -10.51 -114.9 -0.61 -22.4 -0.62 -22.3 -10.36 -113.1
2.6 -9.83 -116.4 -0.71 -24.0 -0.71 -24.0 -9.78 -114.3 2.8 -9.27 -118.3 -0.79 -25.7 -0.79 -25.7 -9.21 -115.8
3.0 -8.84 -119.9 -0.88 -27.3 -0.88 -27.3 -8.69 -117.4
3.2 -8.30 -120.8 -0.95 -29.0 -0.96 -29.0 -8.22 -119.0
3.4 -7.80 -122.7 -1.04 -30.6 -1.04 -30.6 -7.78 -120.6
3.6 -7.37 -125.0 -1.14 -32.2 -1.14 -32.2 -7.38 -121.9 3.8 -6.99 -126.7 -1.24 -33.8 -1.24 -33.8 -7.01 -123.4 4.0 -6.67 -128.2 -1.33 -35.3 -1.33 -35.3 -6.67 -125.0
4.2 -6.33 -129.7 -1.41 -36.9 -1.42 -36.9 -6.30 -126.0
4.4 -6.06 -131.2 -1.52 -38.5 -1.52 -38.5 -5.97 -127.7
4.6 -5.74 -132.4 -1.63 -40.0 -1.62 -40.0 -5.72 -129.0
4.8 -5.47 -134.0 -1.74 -41.5 -1.74 -41.5 -5.43 -130.5
5.0 -5.22 -135.7 -1.86 -42.9 -1.86 -42.9 -5.18 -131.9 5.2 -4.98 -137.1 -1.98 -44.2 -1.98 -44.3 -4.96 -133.2
5.4 -4.75 -138.6 -2.09 -45.7 -2.09 -45.6 -4.74 -134.4
5.6 -4.56 -140.0 -2.21.