Datasheet
MAX2031
High-Linearity, 650MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
4 _______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS (UPCONVERTER OPERATION)
(
Typical Application Circuit
, L1 = 4.7nH, C4 = 6pF, C1 = 82pF, C5 not used, V
CC
= 4.75V to 5.25V, RF and LO ports are driven from
50Ω sources, P
LO
= -3dBm to +3dBm, P
IF
= 0dBm, f
RF
= 815MHz to 1000MHz, f
LO
= 960MHz to 1180MHz, f
IF
= 160MHz, f
LO
> f
RF
,
T
C
= -40°C to +85°C, unless otherwise noted. Typical values are at V
CC
= 5V, P
IF
= 0dBm, P
LO
= 0dBm, f
RF
= 910MHz, f
LO
=
1070MHz, f
IF
= 160MHz, T
C
= +25°C, unless otherwise noted.) (Note 8)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Conversion Loss Lc 7.4 dB
Conversion Loss Flatness
Flatness over any one of three frequency
bands (f
IF
= 160MHz):
f
RF
= 827MHz to 849MHz
f
RF
= 869MHz to 894MHz
f
RF
= 880MHz to 915MHz
±0.3 dB
T
C
= +25°C to -40°C -0.3
Conversion Loss Variation Over
Temperature
T
C
= +25°C to +85°C 0.4
dB
Input Compression Point P
1dB
(Note 9) 27 dBm
Input Third-Order Intercept Point IIP3
f
IF1
= 160MHz, f
IF2
= 161MHz,
P
IF
= 0dBm/tone, f
LO
= 1070MHz,
P
LO
= 0dBm, T
C
= +25°C (Note 10)
32 36 dBm
T
C
= +25°C to -40°C 1.2
Input IP3 Variation Over
Temperature
IIP3
T
C
= +25°C to +85°C -0.9
dB
LO ± 2IF Spur 64 dBc
LO ± 3IF Spur 83 dBc
Output Noise Floor P
OUT
= 0dBm (Note 11) -167 dBm/Hz
Note 6: Operation outside this range is possible, but with degraded performance of some parameters.
Note 7: Not production tested.
Note 8: All limits include external component losses. Output measurements are taken at IF or RF port of the
Typical Application Circuit
.
Note 9: Compression point characterized. It is advisable not to continuously operate the mixer RF/IF inputs above +12dBm.
Note 10: Guaranteed by design.
Note 11: Measured with external LO source noise filtered, so its noise floor is -174dBm/Hz. This specification reflects the effects of all
SNR degradations in the mixer, including the LO noise as defined in Application Note 2021:
Specifications and Measurements
of Local Oscilator Noise in Integrated Circuit Base Station Mixers.
AC ELECTRICAL CHARACTERISTICS (700MHz BAND DOWNCONVERTER OPERATION)
(
Typical Application Circuit
, optimized for the 700MHz band (see Table 1), C1 = 7pF, C5 = 3.3pF, L1 and C4 are not used, V
CC
=
4.75V to 5.25V, RF and LO ports driven from 50Ω sources, P
LO
= -3dBm to +3dBm, P
RF
= 0dBm, f
RF
= 650MHz to 850MHz, f
LO
=
790MHz to 990MHz, f
IF
= 140MHz, f
LO
> f
RF
, T
C
= +25°C, unless otherwise noted. Typical values are at V
CC
= 5V, P
RF
= 0dBm,
P
LO
= 0dBm, f
RF
= 750MHz, f
LO
= 890MHz, f
IF
= 140MHz, T
C
= +25°C, unless otherwise noted.) (Notes 8, 10)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Conversion Loss L
C
6.1 6.9 8.1 dB
Input 1dB Compression Point P
1dB
f
RF
= 750MHz, P
RF
= 0dBm, P
LO
= 0dBm 27.7 dBm
Input Third-Order Intercept Point IIP3
f
RF1
= 749MHz, f
RF2
= 750MHz,
f
LO
= 890MHz, P
RF
= 0dBm/tone,
P
LO
= 0dBm
32 37 dBm
LO Leakage at IF Port P
LO
= +3dBm -33 -21 dBm
LO Leakage at RF Port P
LO
= +3dBm -20 -13 dBm
RF-to-IF Isolation 36 49 dB
2LO-2RF Spurious Response 2 x 2 40 72 dBc
3LO-3RF Spurious Response 3 x 3 65 82 dBc