DA2709 Datasheet, PDF (1/9 Pages) List of Unclassifed Manufacturers – Wideband Amplifier

DA2709 Wideband Amplifier
Advance Information
HiMARK Technology, Inc. reserves the right to change the product described in this datasheet. All information contained
in this datasheet is subject to change without prior notice. HiMARK Technology, Inc. assumes no responsibility for the
use of any circuits shown in this datasheet.
Description
The DA2709 is a general purpose, low-cost RF wideband amplifier IC. The input and out-
put of the IC are internally matched to 50Ω for convenient cascading. Applications include
IF and RF amplification in wireless voice and data communication products from DC to
3GHz. The DA2709 requires minimal external components for DC bias.
y _Features
r _{u DC to 3GHz Operation}
u Internally Matched Input and Output
a u 22dB Small Signal Gain @2GHz
u P1dB = 8dBm @2GHz
u Single Positive Power Supply
in ^{u SOT363 surface-mount package}
Pin Out Diagram
GND 4
GND 5
IN 6
3 _OUT
2 GND
1 _VCC
Pin Descriptions
lim Number
1
2
Name
V_CC
GND
e ₃
OUT
r ₄
GND
P⁵
GND
Description
Power supply pin. An external bypass capacitor is required.
Ground connection. Keep PCB traces as short as possible and connect
immediately to ground plane for best performance.
Signal output and bias pin. An external choke inductor L to V_CC is required
for biasing. An external series DC blocking capacitor is also required.
Same as pin 2.
Same as pin 2.
6
IN
Signal input pin. An external series DC blocking capacitor is required. No
DC coupling allowed.
Page 1
February 2002