Datasheet

MAX2680/MAX2681/MAX2682
400MHz to 2.5GHz, Low-Noise,
SiGe Downconverter Mixers
_______________________________________________________________________________________ 3
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2680/1/2 EV Kit, V
CC
= SHDN = +3.0V, T
A
= +25°C, unless otherwise noted. RFIN and IFOUT matched to 50Ω. P
LO
= -5dBm,
P
RFIN
= -25dBm.)
f
RF
= 1950MHz, f
LO
= 1880MHz, f
IF
= 70MHz,
T
A
= T
MIN
to T
MAX
(Note 1)
dB1.7 2.3
(Notes 1, 2)
Gain Variation Over Temperature
f
LO
= 1880MHz
(Notes 1, 2)
f
LO
= 1880MHz
dBm
50Ω source impedance
f
RF
= 1950MHz, 1951MHz, f
LO
= 1880MHz, f
IF
= 70MHz
f
RF
= 900MHz, 901MHz, f
LO
= 970MHz, f
IF
= 70MHz
f
RF
= 2450MHz, f
LO
= 2210MHz, f
IF
= 240MHz
f
RF
= 1950MHz, f
LO
= 2020MHz, f
IF
= 70MHz
-27
f
RF
= 2450MHz, f
LO
= 2210MHz, f
IF
= 240MHz
(Notes 1, 2)
f
RF
= 400MHz, f
LO
= 445MHz, f
IF
= 45MHz
f
RF
= 900MHz, f
LO
= 970MHz, f
IF
= 70MHz
f
RF
= 900MHz, f
LO
= 970MHz, f
IF
= 70MHz
f
RF
= 1950MHz, f
LO
= 1880MHz, f
IF
= 70MHz (Note 1)
f
RF
= 2450MHz, 2451MHz, f
LO
= 2210MHz, f
IF
= 240MHz
CONDITIONS
LO Leakage at RFIN Port
dBm-23LO Leakage at IFOUT Port
f
RF
= 1915MHz, f
LO
= 1880MHz, f
IF
= 70MHz (Note 4) dBm-65IF/2 Spurious Response
1.5:1LO Input VSWR
dB
12.7
Noise Figure (Single Sideband)
11.1
7.0
dBm
+1.0
Input Third-Order Intercept Point
(Note 3)
MHz400 2500LO Frequency Range
MHz400 2500RF Frequency Range
+0.5
-6.1
dB
7.7
Conversion Power Gain
MHz10 500IF Frequency Range
11.0
14.2
6.7 8.4 9.4
UNITSMIN TYP MAXPARAMETER
f
RF
= 1950MHz, f
LO
= 1880MHz, f
IF
= 70MHz,
T
A
= T
MIN
to T
MAX
(Note 1)
dB2.1 3.2
(Notes 1, 2)
Gain Variation Over Temperature
(Notes 1, 2)
f
RF
= 1950MHz, 1951MHz, f
LO
= 1880MHz, f
IF
= 70MHz
f
RF
= 900MHz, 901MHz, f
LO
= 970MHz, f
IF
= 70MHz
f
RF
= 2450MHz, f
LO
= 2210MHz, f
IF
= 240MHz
(Notes 1, 2)
f
RF
= 400MHz, f
LO
= 445MHz, f
IF
= 45MHz
f
RF
= 900MHz, f
LO
= 970MHz, f
IF
= 70MHz
f
RF
= 1950MHz, f
LO
= 1880MHz, f
IF
= 70MHz (Note 1)
f
RF
= 2450MHz, 2451MHz, f
LO
= 2210MHz, f
IF
= 240MHz
dBm
+3.2
Input Third-Order Intercept Point
(Note 3)
MHz400 2500LO Frequency Range
MHz400 2500RF Frequency Range
+4.4
-1.8
dB
7.9
Conversion Power Gain
MHz10 500IF Frequency Range
13.4
14.7
8.7 10.4 11.7
f
RF
= 1950MHz, f
LO
= 2020MHz, f
IF
= 70MHz
f
RF
= 900MHz, f
LO
= 970MHz, f
IF
= 70MHz
f
RF
= 2450MHz, f
LO
= 2210MHz, f
IF
= 240MHz
dB
13.4
Noise Figure (Single Sideband)
10.2
6.5
f
LO
= 1880MHz dBm-26LO Leakage at RFIN Port
f
RF
= 1915MHz, f
LO
= 1880MHz, f
IF
= 70MHz (Note 4) dBm-51IF/2 Spurious Response
MAX2681
MAX2682