M
ODEL
SL900A V
ERSION
V_1.0
P
REPARED BY
H/W
D
ATE
2006.06.30
S
UBJECT
T
ECHNICAL
M
ANUAL
P
AGE
50/51
SL900A
T
ECHNICAL
M
ANUAL
The RF3146 is a high-power, high-efficiency power amplifier module with integrated power control of
RFMD. The device is a self-contained 7mm*7mm*0.9mm lead frame module with 50ohm input and
output terminals. The power control function is also incorporated, eliminating the need for directional
couplers, detector diodes, power control ASICs and other power control circuitry(See figure 34) ; this
allows the module to be driven directly from the DAC output. The device is designed for use as the
final RF amplifier in EGSM900 and DCS handsets. On-board power control provides over 50dB of
control range with an analog voltage input. The RF3146 has Max +35dBm GSM output power and
Max +33dBm DCS output power at 3.5V.
Figure 32. The Shaded area are eliminated on RF3146
.
Figure 33. Diagram of the power control
Figure 34. Diagram of the Power control
Summary of Contents for SL900A
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