High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, C5 = 3.3pF, L1 and C4 not used, V CC = +4.75V to +5.25V, RF and LO ports are driven from 50 Ω sources,
P LO = -3dBm to +3dBm, P RF = 0dBm, f RF = 815MHz to 1000MHz, f LO = 570MHz to 900MHz, f IF = 90MHz, f LO < f RF , T C = -40°C to
+85°C, unless otherwise noted. Typical values are at V CC = +5V, P LO = 0dBm, f RF = 920MHz, f LO = 830MHz, f IF = 90MHz,
T C = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
LO Switching Time
50% of LOSEL to IF, settled within 2 degrees
50
ns
Minimum RF-to-IF Isolation
RF Port Return Loss
LO Port Return Loss
IF Port Return Loss
f RF = 920MHz to 960MHz, f LO = 830MHz to
870MHz (Note 3)
LO1/LO2 port selected, LO2/LO1, RF, and IF
terminated into 50 Ω
LO1/LO2 port unselected, LO2/LO1, RF, and
IF terminated into 50 Ω
LO driven at 0dBm, RF terminated into 50 Ω
38
47
18
19
31
23
dB
dB
dB
dB
AC ELECTRICAL CHARACTERISTICS (DOWNCONVERTER OPERATION)
(Typical Application Circuit, C5 = 3.3pF, L1 and C4 not used, V CC = +4.75V to +5.25V, RF and LO ports are driven from 50 Ω sources,
P LO = -3dBm to +3dBm, P RF = 0dBm, f RF = 815MHz to 1000MHz, f LO = 570MHz to 900MHz, f IF = 90MHz, f LO < f RF , T C = -40°C to
+85°C, unless otherwise noted. Typical values are at V CC = +5V, P LO = 0dBm, f RF = 920MHz, f LO = 830MHz, f IF = 90MHz,
T C = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Conversion Loss
G C
6.5
dB
Flatness over any one of three frequency
bands (f IF = 90MHz):
Conversion Loss Flatness (Note 3)
f RF = 827MHz to 849MHz
f RF = 869MHz to 894MHz
±0.2
dB
f RF = 880MHz to 915MHz
f RF = 920MHz to 960MHz
±0.4
Conversion Loss Variation Over
Temperature
T C = +25°C to -40°C
T C = +25°C to +85°C
-0.28
0.35
dB
Input Compression Point
P 1dB
(Note 4)
27
dBm
f RF1 = 920MHz, f RF2 = 921MHz,
Input Third-Order Intercept Point
IIP3
P RF = 0dBm/tone, P LO = 0dBm, T C = +25°C
33
36.5
dBm
(Note 3)
Input IP3 Variation Over
Temperature
IIP3
T C = +25°C to -40°C
T C = +25°C to +85°C
-0.6
0.4
dB
f RF1 = 920MHz, f RF2 = 921MHz, P RF =
Output Third-Order Intercept Point
OIP3
0dBm/tone, P LO = 0dBm, T C = +25°C
26
30
dBm
(Note 3)
2RF - 2LO, P RF = -10dBm, f RF = 920MHz to
Spurious Response at IF (Note 3)
2x2
960MHz (f LO = 830MHz to 870MHz),
T C = +25°C
62
72
dBc
3x3
3RF - 3LO, P RF = -10dBm
96
Noise Figure
Noise Figure Under Blocking
(Note 5)
NF
Single sideband
P BLOCKER = +8dBm
P BLOCKER = +12dBm
6.7
15
19
dB
dB
_______________________________________________________________________________________
3
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