cgy196 ETC-unknow, cgy196 Datasheet - Page 3

• Manufacturer Part Number: cgy196
• Description: Gaas Mmic Broadband Power Amplifier 800.3500 Dect/phs/pcs/gsm/amps/wlan/wll Single Voltage Supply
• Manufacturer: ETC-unknow

Semiconductor Group
Determination of Permissible Total Power Dissipation for Continuous and Pulse
Operation
The dissipated power is the power which remains in the chip and heats the device. It does
not contain RF signals which are coupled out consistently.
a) Continuous Wave / DC Operation
For the determination of the permissible total power dissipation P
below it is necessary to obtain the temperature of the soldering point T
cases:
Siemens Aktiengesellschaft
When R
sensor at the leads were the heat is transferred from the device to the board ( normally at
the widest source or ground lead for GaAs ). Use a small sensor of low heat transport,
for example a thermoelement ( < 1mm ) with thin wires or a temperature indicating paper
while the device is operating.
When R
thSA
thSA
mW
1600
1400
1200
1000
800
600
400
200
0
(soldering point to ambient) is not known: Measure T
is already known:
0
Permissible Total Power Dissipation in DC Operation
25
Temperature of soldering point, Ts
P
tot DC
50
T
= f (T
S
= P
75
s
75
3
3
)
diss
x R
thSA
100
+ T
A
tot-DC
125
S
from the diagram
S
with a temperature
first. There are two
°C
150
HL HF PE GaAs
CGY 196
1998-11-01
16.6.1998