TRANSCOM
TC3538
TRANSCOM, INC., 90 Dasoong 7
th
Road, Tainan Science- Based Industrial Park, Shanhua Jen, Tainan County, Taiwan, R.O.C.
Web-Site: www.transcominc.com.tw
Phone: 886-6-5050086
Fax: 886-6-5051602
1
Preliminary
May 2002
5 ~ 6 GHz 1W MMIC
FEATURES
P
-1
dB: 30 dBm
Small Signal Gain: 21 dB
Power Added Efficiency: 25 %
IP3: 39 dBm
Matched to 50 operation
Bias condition: 600 mA @ 7 V
DESCRIPTION
The TC3538 is a 2 stage PHEMT MMIC power amplifier. It is designed for use in low cost, high volume, 5 - 6
GHz band applications. The MMIC is matched to 50
operation. It provides a typical gain of 21 dB and P1dB
power of more than 30 dBm. Typical bias condition is 7V at 600 mA. The MMIC is packaged in a low-cost
surface-mountable plastic package.
APPLICATIONS
Wireless Internet Access
Wireless Local Loop
Two way radio
ELECTRICAL SPECIFICATIONS (Ta = 25
C)
SYMBOL
DESCRIPTION
MIN
TYP
MAX
UNITS
FREQ
Frequency Range
5
6
GHz
SSG
Small Signal Gain
19
21
dB
GOF
Small Signal Gain Flatness @5.7 ~ 5.9 GHz
0.5
0.75
GOF
Small Signal Gain Flatness @5 ~ 6 GHz
1
2
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
IP3
Third Order Intercept Point
37
39
dBm
VSWR, IN
Input VSWR
2:1
VDD
Supply Voltage
7
Volt
Vg
Gate Voltage
-0.6
-1.0
-1.5
Volt
IDD
Current Supply Without RF
600
mA
IDP
-1
Current Supply @ Pout=P
-1
dB
600
650
mA
a
Power Added Efficiency
25
%
TRANSCOM
TC3538
TRANSCOM, INC., 90 Dasoong 7
th
Road, Tainan Science-Based Industrial Park, Shanhua Jen, Tainan County Taiwan, R.O.C.
Web-Site: www.transcominc.com.tw
Phone: 886-6-5050086
Fax: 886-6-5051602
2
Vd
RF IN
Vg
RF OUT
C 3
-
+
R 1
C 2
C 1
C 4
Vg
C 5
5 0 o h m Lin e
5 0 o h m Lin e
Vd
N C
N C
N C
N C
N C
N C
N C
N C
T C 3 5 3 8
TEST CIRCUITS
Evaluation Board Schematic
EVALUATION BOARD
DXF file of the PCB can be
downloaded from our web-site at
www.transcominc.com.tw
PCB Material: RO4003
ER = 3.38
Thickness = 20 mil
Unit: mil
1156
996
TRANSCOM
TC3538
TRANSCOM, INC., 90 Dasoong 7
th
Road, Tainan Science- Based Industrial Park, Shanhua Jen, Tainan County, Taiwan, R.O.C.
Web-Site: www.transcominc.com.tw
Phone: 886-6-5050086
Fax: 886-6-5051602
3
Evaluation Board Parts List
Part Type
Reference Designator
Description
Manufacturer
Part Number
Capacitor C1,
C2
1000pF
0603
Murata
GRM39C0G102J50V
Capacitor
C3, C4
0.1 uF 0603
Murata
GRM39Y5V104Z25V
Capacitor C5
4.7uF
Tantalum
Cap.
Resistor R1
200
ohm
0603
CONNECTION DIAGRAM AND PIN DESCRIPTIONS
Pin #
Name
Description
4, 5
RF IN
RF input (internally DC blocked)
7, 8
V
d
MMIC
drain
bias
15, 16
Vg
MMIC gate bias
12, 13
RF OUT RF output (internally DC blocked)
Others NC
No
Connection
RF OUT
Vd
RF IN
Vg
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
ohm
50
LINE
50
LINE
ohm
TRANSCOM
TC3538
TRANSCOM, INC., 90 Dasoong 7
th
Road, Tainan Science-Based Industrial Park, Shanhua Jen, Tainan County Taiwan, R.O.C.
Web-Site: www.transcominc.com.tw
Phone: 886-6-5050086
Fax: 886-6-5051602
4
PHYSICAL DEMENSIONS (Unit: inches)
O
P
0.115
Dimensions in inches
0
y
Q
R
S
T
U
0.041
0.039
0.010
0.030
0.033
0.004
8
0.018
0.169
0.193
0.004
0.007
0.031
0.000
MINIMUM
D
E1
E
L
e
M
O
DIMENSION
A2
A1
C
b
A
NOMINAL
0.197
0.024
0.252
0.173
0.026
0.095
0.095
0.039
0.201
0.030
0.177
0.045
0.008
0.012
0.041
0.004
MAXIMUM
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