ST TDR025V1 User Manual
Portable UHF 2-way radio demonstration board
Features
■ Excellent thermal stability
■ Frequency: 380 - 520 MHz
■ Supply voltage: 7.2 V
■ Output power: 1 W
■ Power gain: 15.5 ± 0.7 dB
■ Efficiency: 58 % - 67 %
■ Load mismatch: 20:1
■ BeO-free amplifier
Description
The STEVAL-TDR025V1 demonstration board is
a portable UHF 2-way radio designed as a
platform for valuating the performance of the
PD84001 LDMOS RF power transistor.
STEVAL-TDR025V1
based on the PD84001
Preliminary data
Table 1. Device summary
Order code Mechanical specification
STEVAL-TDR025V1 L = 60 mm, W = 30 mm
October 2010 Doc ID 18122 Rev 1 1/10
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without notice.
www.st.com
10
Contents STEVAL-TDR025V1
Contents
1 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2/10 Doc ID 18122 Rev 1
STEVAL-TDR025V1 Electrical characteristics
1 Electrical characteristics
TA = + 25 °C, VDD = 7.2 V, I
= 100 mA
dq
Table 2. Electrical specifications
Symbol Test conditions Min. Typ. Max. Unit
Freq Frequency range 380 520 MHz
P
OUT
Gain @ P
ND @ P
H2 2nd harmonic @ P
H3 3rd harmonic @ P
= 15 dBm 15.5 ± 0.7 dB
IN
= 15 dBm 58 - 67 %
IN
= 15 dBm TBD dBc
IN
= 15 dBm TBD dBc
IN
VSWR Load mismatch all phases @ P
= 1 W 20:1
OUT
1W
Doc ID 18122 Rev 1 3/10
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