Datasheet
MAX19997A
Dual, SiGe High-Linearity, 1800MHz to 2900MHz
Downconversion Mixer with LO Buffer
3
Maxim Integrated
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage V
CC
3.0 3.3 3.6 V
Supply Current I
CC
Total supply current, V
CC
= 3.3V 279 310 mA
+3.3V SUPPLY DC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
optimized for the standard RF band (see Table 1), no input RF or LO signals applied, V
CC
= 3.0V to 3.6V,
T
C
= -40°C to +85°C. Typical values are at V
CC
= 3.3V, T
C
= +25°C, unless otherwise noted. R1, R4 = 1.1kΩ, R2, R5 = 845Ω.)
RECOMMENDED AC OPERATING CONDITIONS
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RF Frequency Without External
Tuning
f
RF
(Note 5) 2400 2900 MHz
RF Frequency with External
Tuning
f
RF
S ee Tab l e 2 for an outl i ne of tuni ng el em ents
op ti m i zed for 1950M H z op er ati on;
op ti m i zati on at other fr eq uenci es w i thi n the
1800M H z to 2400M H z r ang e can b e
achi eved w i th different component values;
contact the factory for details
1800 2400 MHz
LO Frequency f
LO
(Notes 5, 6) 1950 3400 MHz
Using Mini-Circuits TC4-1W-17 4:1
transformer as defined in the Typical
Application Circuit, IF matching
components affect the IF frequency range
(Notes 5, 6)
100 550
IF Frequency f
IF
Using alternative Mini-Circuits TC4-1W-7A
4:1 transformer, IF matching components
affect the IF frequency range (Notes 5, 6)
50 250
MHz
LO Drive Level P
LO
-3 +3 dBm
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
f
RF
= 2400MHz to 2900MHz,
T
C
= +25°C (Notes 8, 9, 10)
8.1 8.7 9.3
Conversion Gain G
C
T
C
= +100°C 8.1
dB
f
RF
= 2305MHz to 2360MHz 0.15
f
RF
= 2500MHz to 2570MHz 0.15
f
RF
= 2570MHz to 2620MHz 0.1
f
RF
= 2500MHz to 2690MHz 0.15
Conversion Gain Flatness
f
RF
= 2700MHz to 2900MHz 0.15
dB
Gain Variation Over Temperature TC
CG
f
RF
= 2300MHz to 2900MHz,
T
C
= -40°C to +100°C
-0.01 dB/°C
+5.0V SUPPLY, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit
optimized for the standard RF band (see Table 1),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
= 2300MHz to 2900MHz, f
LO
= 2650MHz to 3250MHz, 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
= 2600MHz, f
LO
= 2950MHz,
f
IF
= 350MHz, T
C
= +25°C, unless otherwise noted.) (Note 7)