Philips SA631, Техническое описание

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Philips Semiconductors Product specification
SA631 1GHz low voltage LNA and mixer
1998 Jan 08 4
AC ELECTRICAL CHARACTERISTICS
V
CC
= +3.0V, T
amb
= 25
°
C; RF
IN
= 881MHz, f
VCO
= 964MHz; unless otherwise stated.
SYMBOL PARAMETER TEST CONDITIONS
LIMITS
UNITS SYMBOL PARAMETER TEST CONDITIONS
–3 TYP +3
UNITS
Low Noise Amplifier
f
RF
RF input frequency range 800 1000 MHz
S
21
Amplifier gain 15 dB
S
21
Amplifier gain in power-down mode –28 dB
∆
S
21
/
∆
T Gain temperature sensitivity enabled 0.006 dB/
°
C
∆
S
21
/
∆
f Gain frequency variation 800MHz - 1.0GHz
±
0.013 dB/MHz
S
12
Amplifier reverse isolation @ 881 MHz –28 dB
S
11
Amplifier input match With ext. impedance matching –10 dB
S
22
Amplifier output match –10 dB
P
-1dB
Amplifier input 1dB gain compression –20 dBm
IP3 Amplifier input third order intercept –7 dBm
NF Amplifier noise figure 1.7 dB
t
ON
Amplifier turn-on time (Enable Lo
→
Hi) 120
µ
s
t
OFF
Amplifier turn-off time (Enable Hi
→
Lo) 0.3
µ
s
Mixer
PG
C
Mixer power conversion gain: R
P
= R
L
= 1.2k
Ω
f
RF
= 881MHz, f
LO
= 964MHz,
f
IF
= 83MHz
9.6 dB
S
11M
Mixer input match Ext. impedance matching req. –10 dB
NF
M
Mixer SSB noise figure 10 dB
P
-1dB
Mixer input 1dB gain compression –14.5 dBm
IP3
M
Mixer input third order intercept 3.3 dBm
IP
2INT
Mixer input second order intercept 38 dBm
P
RFM-IF
Mixer RF feedthrough RF
IN
= –32dBm –45 dBm
P
LO-IF
LO feedthrough to IF LO = –0dBm –23 dBm
P
LO-RFM
LO to mixer input feedthrough –32 dBm
P
LO-RF
LO to LNA input feedthrough –42 dBm
Overall System
G
SYS
System gain LNA + Mixer 23.9 24.6 25.3 dB