Philips BGY280 - Manual (Page 6)

2000 Nov 15 6
Philips Semiconductors Preliminary specification
UHF amplifier module BGY280
Fig.8 Output amplitude modulation 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;
∆f = 100 kHz; input amplitude modulation = 5.4%; δ = 2 : 8; t
p
= 575 µs.
0
10
20
30
40
0 10 20 30 40
P
L
(dBm)
output
AM
(%)
900MHz
1800MHz
Fig.9 Output phase at P
D
= +0.5 dBm, relatively
to output phase at P
D
= −0.5 dBm;
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.
0
2
4
6
8
-10 0 10 20 30 40
P
L
(dBm)
AM-PM
(deg/dB)
1800MHz
900MHz
Fig.10 Noise 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.
-100
-90
-80
-70
-60
0 10 20 30 40
P
L
(dBm)
noise
(dBm)
R
X
=1845MHz
R
X
=942.5MHz