Philips BGY280 - Manual (Page 5)

2000 Nov 15 5
Philips Semiconductors Preliminary specification
UHF amplifier module BGY280
Fig.4 Second harmonic as a function of load
power; typical values.
Z
S
= Z
L
= 50 Ω; V
S
= 3.6 V; P
D
= 0 dBm;
T
mb
= 25 °C; δ = 2 : 8; t
p
= 575 µs.
-60
-50
-40
-30
-20
20 25 30 35 40
P
L
(dBm)
H
2
(dBc)
1710MHz
1785MHz
915MHz
880MHz
Fig.5 Third harmonic as a function of load power;
typical values.
Z
S
= Z
L
= 50 Ω; V
S
= 3.6 V; P
D
= 0 dBm;
T
mb
= 25 °C; δ = 2 : 8; t
p
= 575 µs.
-60
-50
-40
-30
-20
20 25 30 35 40
P
L
(dBm)
H
3
(dBc)
880MHz
915MHz
1710MHz
1785MHz
0
10
20
30
40
10 20 30 40
P
L
(dBm)
gain
(dB)
(6)
(4)
(5)
(3)
(1)
(2)
conversion gain
small signal gain
Fig.6 Gain as a function of load power; typical
values.
Z
S
= Z
L
= 50 Ω; P
D
= 0 dBm; V
S
= 3.6 V;T
mb
= 25 °C;
f
c
= 1747.5 MHz; δ = 2 : 8; t
p
= 575 µs.
(1) f = 1805 MHz (4) f = 1615 MHz
(2) f = 1842.5 MHz (5) f = 1625.5 MHz
(3) f = 1880 MHz (6) f = 1690 MHz
Fig.7 Gain as a function of load power; typical
values.
0
10
20
30
40
10 20 30 40
P
L
(dBm)
gain
(dB)
(1)
(6)
(5)
(4)
(3)
(2)
conversion gain
small signal gain
Z
S
= Z
L
= 50 Ω; V
S
= 3.6 V; P
D
= 0 dBm;
T
mb
= 25 °C; f
c
= 897.5 MHz; δ = 2 : 8; t
p
= 575 µs.
(1) f = 925 MHz (4) f = 835 MHz
(2) f = 942.5 MHz (5) f = 852.5 MHz
(3) f = 960 MHz (6) f = 870 MHz