BGA2716 データシートの表示（PDF） - Philips Electronics
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BGA2716 Datasheet PDF : 14 Pages
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Philips Semiconductors
BGA2716
MMIC wideband amplifier
8. Application information
Figure 1 shows a typical application circuit for the BGA2716 MMIC. The device is
internally matched to 50 Ω, and therefore does not need any external matching. The value
of the input and output DC blocking capacitors C2 and C3 should not be more than 100 pF
for applications above 100 MHz. However, when the device is operated below 100 MHz,
the capacitor value should be increased.
The nominal value of the RF choke L1 is 100 nH. At the frequencies below 100 MHz this
value should be increased. At frequencies above 1 GHz, a lower value can be used to
tune the output return loss. For optimal results, a good quality chip inductor or a
wire-wound SMD type should be chosen.
Both the RF choke and the 22 nF supply decoupling capacitor C1 should be located as
close as possible to the MMIC.
The printed-circuit board (PCB) top ground plane, connected to pins 2, 4 and 5 must be as
close as possible to the MMIC, and ideally directly beneath it. When using via holes, use
multiple via holes, located as close as possible to the MMIC.
VS
C1
C2 RF_IN
RF input
VS
RF_OUT
L1
C3
RF output
GND1 GND2
Fig 1. Typical application circuit.
mgu436
Figure 2 shows the PCB layout, used for the standard demonstration board.
9397 750 13292
Product data sheet
Rev. 02 — 24 September 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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