Document
CHA4105-99F
RoHS COMPLIANT
2-4GHz Driver
GaAs Monolithic Microwave IC
Description
The CHA4105-99F is a monolithic two-stage driver amplifier delivering 24dBm output power @ 1dB gain compression in the 2-4GHz frequency range. It is designed for a wide range of applications, from military 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.
IN
V+ V-
Main Features
■ Broadband performances: 2-4GHz ■ 24dBm @ 1dB gain compression ■ 23dB Gain ■ DC bias: V+ = 5V ; V- = -5V ■ DC power consumption: 180mA ■ Chip size: 2.07 x 1.6 x 0.1 mm
OUT
+25°C-40°C +85°C
Main Characteristics
Tamb.= +25°C
Symbol
Parameter
Min Typ Max Unit
Freq Frequency range
2 4 GHz
Gain Linear Gain
23 dB
P_1dB Output Power @1dB comp.
24 dBm
ESD Protections: Electrostatic discharge sensitive device. Observe handling precautions!
Ref. : DSCH41051035 - 07 Feb11
1/12 Specifications subject to change without notice
United Monolithic Semiconductors S.A.S.
Route Départementale 128 - BP46 - 91401 Orsay Cedex France
Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
CHA4105-99F
2-4GHz Driver
Main Characteristics
Tamb.= +25°C
Symbol
Parameter
Min Typ Max Unit
Freq Frequency range
2 4 GHz
Gain Linear Gain
23 dB
RL_in Input Return Loss
15 dB
RL_out Output Return Loss
18 dB
P_1dB Output power @ 1dB gain compression
24 dBm
PAE_1dB Power Added Efficiency @ 1dBcomp.
28 %
V+ Positive supply voltage
5V
V- Negative supply voltage I+ Positive supply quiescent current (1)
-5 V 180 mA
I- Negative supply quiescent current
5 mA
I+_1dB Positive current @ 1dB gain compression
220 mA
These values are representative of onboard measurements as defined on the drawing in paragraph "Evaluation mother board".
(1) Parameter can be adjusted by tuning of V-.
Absolute Maximum Ratings (1)
Tamb.= +25°C
Symbol
Parameter
Values
Unit
V+ Positive supply voltage
6.5V
V
I+ Positive supply quiescent current
240 mA
V- Negative supply voltage Tj Junction temperature (2)
-3.75 175
V °C
Cmp Compression level
6 dB
I+_sat Supply current in saturation
320 mA
Ta Operating temperature range
-40 to +85
°C
Tstg Storage temperature range
-55 to +155
°C
(1) Operation of this device above anyone of these parameters may cause permanent
damage.
(2) Thermal Resistance channel to ground paddle = 101°C/W for T= +85°C.
Ref. : DSCH41051035 - 07 Feb11
2/12
Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
Specifications subject to change without notice
2-4GHz Driver
CHA4105-99F
Typical on-wafer Sij parameters
Tamb.= +25°C, V+ = +8V, I+ = 180mA
Freq (GHz)
S11 PhS11 (dB) (°)
S12 (dB)
0.10 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00
-0.36 -1.29 -1.94 -8.45 -19.45 -16.35 -27.33 -18.68 -19.87 -9.94 -4.07 -2.17 -1.47 -1.27 -1.01 -0.65 -0.48 -0.41 -0.34 -0.28 -0.23
-6.99 -27.40 -61.11 -129.10 -9.13 -40.67 -65.04 37.43 -55.35 160.10 106.30 74.95 54.99 41.32 32.22 23.53 15.71 9.02 3.12 -2.20 -7.02
-69.84 -39.33 -39.27 -40.31 -42.17 -42.04 -41.93 -42.83 -44.60 -46.99 -50.19 -54.83 -57.93 -56.29 -59.51 -73.34 -65.74 -70.70 -75.00 -67.47 -57.14
PhS12 (°)
178.30 -1.72 -124.00 125.30 33.05 -40.67 -107.90 -173.80 126.30 66.06 1.40 -50.90 -75.28 -107.10 -174.20 139.70 -158.40 76.88 -91.93 23.62 -31.86
S21 (dB)
-33.96 -11.29 -1.79 17.67 22.70 23.65 23.97 23.21 21.53 18.51 13.84 9.24 5.80 3.30 -1.03 -8.82 -16.52 -23.22 -28.39 -33.03 -36.77
PhS21 (°)
-95.60 117.70 146.90 68.32 -40.78 -119.90 167.90 98.09 30.41 -37.00 -95.76 -141.90 176.20 127.00 63.07 11.05 -22.61 -47.81 -70.68 -93.57 -111.10
S22 (dB)
-0.58 -1.96 -6.02 -14.87 -39.04 -20.64 -19.19 -24.13 -14.51 -9.41 -6.39 -4.74 -3.73 -3.02 -2.30 -1.71 -1.30 -0.98 -0.76 -0.57 -0.45
PhS22 (°)
-15.89 -72.56 -141.70 154.80 -50.42 -64.11 -97.03 -50.70 -33.10 -46.44 -63.91 -79.58 -92.33 -102.30 -110.50 -119.30 -127.50 -134.70 -141.20 -147.30 -153.30
Ref. : DSCH41051035 - 07 Feb11
3/12
Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
Specifications subject to change without notice
CHA4105-99F
Typical Test fixture Measurements
V+ = +5V, V- = -5V, I+ = 180mA, I- = 2mA
Linear Gain
2-4GHz Driver
-40°C
+25°C +85°C
In/out Return Loss
Input & Output return loss (dB)
Input
Output
Ref. : DSCH41051035 - 07 Feb11
4/12
Route Départementale 128, BP46 - 91401 ORSAY Cedex - FRANCE Tel.: +33 (0) 1 69 33 03 08 - Fax: +33 (0) 1 69 33 03 09
Specifications subject to change without notice
2-4GHz Driver
CHA4105-99F
Typical Test fixture Measurements
V+ = +5V, V- = -5V, I+ = 180mA, I- = 2mA
Output power @ 1dB gain compression versus Frequency & Temperature
-40°C +25°C
+85°C
Output power @ 1dB gain compression (dBm)
I+ @ 1dB gain compress.