Datasheet
MAX19995A
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________ 3
RECOMMENDED AC OPERATING CONDITIONS
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RF Frequency f
RF
(Note 5) 1700 2200 MHz
LO Frequency f
LO
(Note 5) 1750 2700 MHz
U si ng M i ni - C i r cui ts TC 4- 1W- 17 4:1
tr ansfor m er as d efi ned i n the Typ i cal
Ap p l i cati on C i r cui t, IF m atchi ng com p onents
affect the IF fr eq uency r ang e ( N ote 5)
100 500
IF Frequency f
IF
U si ng al ter nati ve M i ni - C i r cui ts TC 4- 1W- 7A
4:1 tr ansfor m er as d efi ned i n the Typ i cal
Ap p l i cati on C i r cui t, IF m atchi ng com p onents
affect the IF fr eq uency r ang e ( N ote 5)
50 250
MHz
LO Drive Level P
LO
-3 +3 dBm
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
6.5 8.7 10.4
T
C
= +25°C (Note 7) 7.1 8.7 9.9
Conversion Gain G
C
T
C
= +25°C, f
RF
= 1850MHz (Note 8) 7.7 8.7 9.7
dB
Flatness over any one of three frequency
bands:
f
RF
= 1710MHz to 1785MHz
+0.07
f
RF
= 1850MHz to 1910MHz -0.03
Conversion Gain Flatness ΔG
C
f
RF
= 1920MHz to 1980MHz -0.13
dB
Gain Variation Over Temperature TC
CG
f
RF
= 1700MHz to 2000MHz,
f
LO
= 2050MHz to 2350MHz,
T
C
= -40°C to +85°C
-0.011 dB/°C
Input Compression Point IP
1dB
f
RF
= 1850MHz (Notes 7, 9) 9.5 13.5 dBm
f
RF1
- f
RF2
= 1MHz, P
RF
= -5dBm per tone 21.5 24.8
Input Third-Order Intercept Point IIP3
f
RF1
- f
RF2
= 1MHz, P
RF
= -5dBm per tone,
T
C
= +25°C
22 24.8
dBm
Input Third-Order Intercept Point
Variation Over Temperature
TC
IIP3
f
RF1
- f
RF2
= 1MHz, P
RF
= -5dBm per tone,
T
C
= -40°C to +85°C
0.006 dBm/°C
Single sideband, no blockers present 9.2 11.1
Noise Figure (Note 10) NF
SSB
f
RF
= 1850M H z, f
LO
= 2200M H z, T
C
= + 25° C ,
P
LO
= 0dBm, single sideband, no blockers
present
9.2 9.8
dB
Noise Figure Temperature
Coefficient
TC
NF
Single sideband, no blockers present,
T
C
= -40°C to +85°C
0.016 dB/°C
5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
, R1 = R4 = 681Ω, R2 = R5 = 1.5kΩ, V
CC
= 4.75V to 5.25V, RF and LO ports are driven from 50Ω sources,
P
LO
= -3dBm to +3dBm, P
RF
= -5dBm, f
RF
= 1700MHz to 2000MHz, f
LO
= 2050MHz to 2350MHz, f
IF
= 350MHz, f
RF
< f
LO
, T
C
= -40°C
to +85°C. Typical values are at V
CC
= 5.0V, P
RF
= -5dBm, P
LO
= 0dBm, f
RF
= 1850MHz, f
LO
= 2200MHz, f
IF
= 350MHz, T
C
= +25°C.
All parameters are guaranteed by design and characterization, unless otherwise noted.) (Note 6)