Product data sheetRev. 02 — 24 September 20042 of 14
Philips Semiconductors
6.Thermal characteristics
Table 6:Thermal characteristics
SymbolParameterConditionsTypUnit
R
th(j-sp)
thermal resistance from junction
to solder point
7.Characteristics
Table 7:Characteristics
VS = 5 V; IS = 8 mA; Tj = 25°C; measured on demo board; unless otherwise specified.
SymbolParameterConditionsMinTypMaxUnit
I
S
s
21
s
11
s
22
s
12
NFnoise figuref = 1 GHz-2.32.5dB
Bbandwidthat s21
Kstability factorf = 1 GHz-13-
P
L(sat)
P
L(1dB)
IM2second order
IP3
in
IP3
out
supply current6810mA
2
insertion power
gain
2
input return
losses
2
output return
losses
2
isolationf = 1.6 GHz5455-dB
saturated load
power
load powerat 1 dB gain compression;
intermodulation
product
input, third
order intercept
point
output, third
order intercept
point
BGA2717
MMIC wideband amplifier
P
= 200 mW;
tot
T
≤ 90 °C
sp
f = 100 MHz1818.620dB
f = 1 GHz2323.925dB
f = 1.8 GHz242527dB
f = 2.2 GHz2425.127dB
f = 2.6 GHz222426dB
f = 3 GHz2022.124dB
f = 1 GHz1519-dB
f = 2.2 GHz89.4-dB
f = 1 GHz810-dB
f = 2.2 GHz56.8-dB
f = 2.2 GHz3839-dB
f = 2.2 GHz-2.93.1dB
2
−3 dB below flat
33.2-GHz
gain at 1 GHz
f = 2.2 GHz-1.7f = 1 GHz01.4-dBm
f = 2.2 GHz−1+0.1-dBm
Product data sheetRev. 02 — 24 September 20043 of 14
Philips Semiconductors
8.Application information
Figure 1 shows a typical application circuit for the BGA2717 MMIC. The device is
internally matchedto 50 Ω, and thereforedoes 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 22 nF supply decoupling capacitor C1 should be located as close as possible to the
MMIC.
The printed-circuit board (PCB) topground plane, connectedto pins 2, 4 and 5 must beas
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.
MMIC wideband amplifier
V
S
RF inputRF output
C1
C2C3
6
1
V
S
RF_OUTRF_IN
3
BGA2717
GND2GND1
2, 5
4
mgu435
Fig 1. Typical application circuit.
Figure 2 shows the PCB layout, used for the standard demonstration board.
Product data sheetRev. 02 — 24 September 20044 of 14
Philips Semiconductors
BGA2717
MMIC wideband amplifier
30 mm
30 mm
PH
PH
C2
DUT
PHILIPS
OUTIN
V+
PHILIPS
C3
C1
OUTIN
V+
001aab255
Material = FR4; thickness = 0.6 mm, εr = 4.6.
Fig 2. PCB layout and demonstration board showing components.
8.1 Grounding and output impedance
If the grounding is not optimal, the gain becomes less flat and the 50 Ω output matching
becomes worse. If a better output matching to 50 Ω is required, a 12 Ω resistor (R1) can
be placed in series with C3 (see Figure 3). This will significantly improve the output
impedance, at the cost of 1 dB gain and 1 dB output power.