TRANSCOM TC3131

TC3131
REV2_20040412
2.4 GHz 1W MMIC
FEATURES
PHOTO ENLARGEMENT
•
P-1 dB: 30 dBm
•
Small Signal Gain: 28 dB
•
Power Added Efficiency: 32 %
•
IP3: 39 dBm
•
Bias Condition: 400 mA @ 7 V
GND
RF OUT
Vg
RF OUT
GND
Vd
RF IN
GND
DESCRIPTION
The TC3131 is a 2 stage PHEMT MMIC power amplifier. It is designed for use in low cost and high volume
2.4-2.5 GHz ISM band applications. The MMIC provides a typical gain of 26 dB and saturation power of more
than 30 dBm. Typical bias condition is 7V at 400 mA. The MMIC is packaged in a standard SO-8 power package.
The copper based carrier of the package allows direct soldering of the device to the PCB for proper heat sinking.
The input and output matching of the MMIC require external components.
ELECTRICAL SPECIFICATIONS (Ta = 25 °C)
SYMBOL
DESCRIPTION
MIN
TYP
MAX
UNITS
2.5
GHz
FREQ
Frequency Range
2.4
SSG
Small Signal Gain
26
28
dB
P-1 dB
Output Power at 1 dB Gain Compression
29
30
dBm
P-3 dB
Output Power at 3 dB Gain Compression
30
31
dBm
Third Order Intercept Point
37
39
dBm
IP3
VSWR, IN
VDD
Vg
Input VSWR
Supply Voltage
Gate Voltage
-0.8
2:1
-
7
Volt
-1.5
-2
Volt
IDD
Current Supply Without RF
400
mA
IDP-1
Current Supply @ Pout = P-1 dB
460
mA
Power Added Efficiency
32
%
ηa
TRANSCOM, INC., 90 Dasoong 7th Road, Tainan Science- Based Industrial Park, Hsin-She Shiang, Tainan County, Taiwan, R.O.C.
Web-Site: www.transcominc.com.tw
Phone: 886-6-5050086
Fax: 886-6-5051602
P1/4
TC3131
REV2_20040412
Absolute Maximum Ratings
Symbol
Vdd
Idd
Pin
Pt
Tch
TSTG
Parameter/Conditions
Drain-Source Voltage
Total Drain Current
RF Input Power
Power Dissipation
Operating Channel Temperature
Storage Temperature
Min.
-65
Max.
12
1500
8
6
175
175
Units
Volts
mA
dBm
W
°C
°C
Note:
1. This GaAs MMIC is susceptible to damage from
Electrostatic Discharge. Proper precautions
should be used when handling these devices.
2. Specifications subject to change without notice.
TEST CIRCUITS
Evaluation Board Schematic
TRANSCOM, INC., 90 Dasoong 7th Road, Tainan Science-Based Industrial Park, Hsin-She Shiang, Tainan County Taiwan, R.O.C.
Web-Site: www.transcominc.com.tw
Phone: 886-6-5050086
Fax: 886-6-5051602
P2/4
TC3131
REV2_20040412
EVALUATION BOARD
PCB Material: FR4
ER = 4.6
Thickness = 31 mil
Unit: mil
* DXF file of the PCB can be downloaded from our web-site at www.transcominc.com.tw
* Application Notes:
For better heat sinking and grounding, it's recommended to have the via holes beneath TC3131
filled with solder and have two screws installed on required heat sink plate besides TC3131 on
the PCB area.
Evaluation Board Parts List
Part Type
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Reference Designator
C1
C2, C5
C3
C4
C6
C7~10
C11, C12
C13
Description
3.3 pF 0603
0.75 pF 0603
1.8 pF 0603
2 pF 0603
3.9 pF 0603
1000 pF 0603
0.1 uF 0603
4.7uF Tantalum Cap.
Manufacturer
Murata
Murata
Murata
Murata
Murata
Murata
Murata
Part Number
GRM39C0G3R3C50V
GRM39C0GR75C50V
GRM39C0G1R8C50V
GRM39C0G020C50V
GRM39C0G3R9C50V
GRM39C0G102J50V
GRM39Y5V104Z25V
TRANSCOM, INC., 90 Dasoong 7th Road, Tainan Science- Based Industrial Park, Hsin-She Shiang, Tainan County, Taiwan, R.O.C.
Web-Site: www.transcominc.com.tw
Phone: 886-6-5050086
Fax: 886-6-5051602
P3/4
TC3131
REV2_20040412
CONNECTION DIAGRAM AND PIN DESCRIPTIONS
GND
4
5
Vg
3
6
RF OUT
GND
2
7
Vd
Matching
Circuit
1
8
Matching
Circuit
Pin #
1
2, 4, 8
3
5, 6
Name
RF IN
GND
Vg
RF OUT
7
Vd
Description
RF input (internally DC blocked)
Ground
FET gate bias
RF output and Vd2 External
matching circuit required
Input stage drain bias
GND
RF IN
PHYSICAL DIMENSIONS (Unit: inch)
α
α
TRANSCOM, INC., 90 Dasoong 7th Road, Tainan Science-Based Industrial Park, Hsin-She Shiang, Tainan County Taiwan, R.O.C.
Web-Site: www.transcominc.com.tw
Phone: 886-6-5050086
Fax: 886-6-5051602
P4/4