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參數(shù)資料
| 型號(hào)： | SA621 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 1GHz - Low voltage LNA, mixer and VCO |
| 中文描述： | 1GHz的-低電壓低噪聲放大器，混頻器和VCO |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 118K |
| 代理商： | SA621 |
Philips Semiconductors
Product specification
SA621
1GHz low voltage LNA, mixer and VCO
1997 Nov 07
4
AC ELECTRICAL CHARACTERISTICS
V
CC
= +3.0V, T
A
= 25
°
C; RF
IN
= 881MHz, f
VCO
= 964MHz; unless otherwise stated.
SYMBOL
PARAMETER
TEST CONDITIONS
LIMITS
UNITS
–3
TYP
+3
Low Noise Amplifier
f
RF
S
21
S
21
RF input frequency range
800
1000
MHz
Amplifier gain
15
dB
Amplifier gain in power-down mode
-28
dB
S
21
/
T
S
21
/
f
S
12
S
11
S
22
P
-1dB
IP3
Gain temperature sensitivity enabled
0.006
dB/
°
C
Gain frequency variation
800MHz - 1.0GHz
±
0.013
dB/MHz
Amplifier reverse isolation
@ 881 MHz
-28
dB
Amplifier input match
With ext. impedance matching
-10
dB
Amplifier output match
-10
dB
Amplifier input 1dB gain compression
-20
dBm
Amplifier input third order intercept
-7
dBm
NF
Amplifier noise figure
1.7
dB
t
ON
t
OFF
Amplifier turn-on time (Enable Lo
→
Hi)
Amplifier turn-off time (Enable Hi
→
Lo)
120
μ
s
μ
s
0.3
Mixer
PG
C
Mixer power conversion gain: R
P
= R
L
= 1.2k
,
f
RF
= 881MHz, f
LO
= 964MHz,
f
IF
= 83MHz
Ext. impedance matching req.
8.7
dB
S
11M
NF
M
P
-1dB
IP3
M
IP
2INT
P
RFM-IF
P
LO-IF
P
LO-RFM
P
LO-RF
Voltage Controlled Oscillator (VCO)
1
Mixer input match
-10
dB
Mixer SSB noise figure
12
dB
Mixer input 1dB gain compression
-10
dBm
Mixer input third order intercept
4.5
dBm
Mixer input second order intercept
15
dBm
Mixer RF feedthrough
RF
IN
= -25dBm
LO = -10dBm
-41
dBm
LO feedthrough to IF
-23
dBm
LO to mixer input feedthrough
-52
dBm
LO to LNA input feedthrough
-38
dBm
f
VCO
P
VCO
VCO frequency range
883
1083
MHz
VCO power out
See Figure 3
-10
-8
dBm
VCO phase noise
VCO hase noise
2
Offset = 30kHz
-109
dBc/Hz
Offset = 60kHz
-115
Harmonic content
-22
dBc
Residual modulation
45
dB
Pulling figure
VSWR=2:1, all phases
±
500
±
100
kHz
Pushing figure
kHz/V
Overall System
G
SYS
System gain
LNA + Mixer
23.0
23.7
24.4
dB
NOTES:
1. VCO performance dependent on external components.
2. Based on copper-plated 2mm ceramic resonator (1/4 wave), f = 1025MHz, and can be improved by silver-plated or larger resonators.
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