Datasheet
MAX19996A
SiGe, High-Linearity, 2000MHz to 3900MHz
Downconversion Mixer with LO Buffer
4 _______________________________________________________________________________________
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
T
C
= +25°C (Note 9) 9.5 11
Input 1dB Compression Point IP
1dB
f
RF
= 2600MHz T
C
= +25°C (Notes 7, 9) 10 11
dBm
Third-Order Input Intercept Point IIP3
f
RF1
- f
RF2
= 1MHz, P
RF1
= P
RF2
= -5dBm,
T
C
= +25°C (Note 7)
22.5 24.5 dBm
IIP3 Variation with T
C
f
RF
= 2300M H z to 2900MH z, f
RF1
- f
RF2
= 1M H z,
P
RF1
= P
RF2
= - 5d Bm , T
C
= - 40°C to + 85°C
±0.3 dB
P
RF
= -10dBm 60 67
2LO-2RF Spur Rejection 2 x 2 f
SPUR
= f
LO
- 150MHz
P
RF
= -5dBm 55 62
dBc
P
RF
= -10dBm 75 85
3LO-3RF Spur Rejection 3 x 3 f
SPUR
= f
LO
- 100MHz
P
RF
= -5dBm 65 75
dBc
RF Input Return Loss RL
RF
LO on and IF terminated into a matched
impedance
17.5 dB
LO Input Return Loss RL
LO
RF and IF terminated into a matched
impedance
19.5 dB
IF Output Impedance Z
IF
Nominal differential impedance at the IC’s
IF outputs
200 Ω
f
IF
= 450MHz,
L1 = L2 =
120nH
25
f
IF
= 350MHz,
L1 = L2 =
270nH
25
IF Output Return Loss RL
IF
RF terminated into 50Ω, LO
driven by 50Ω source, IF
transformed to 50Ω using
external components
shown in the Typical
Application Circuit; see the
Typical Operating
Characteristics for
performance vs. inductor
values
f
IF
= 300MHz,
L1 = L2 =
390nH
25
dB
RF-to-IF Isolation P
LO
= +3dBm (Note 7) 27 30 dB
LO Leakage at RF Port P
LO
= +3dBm -28.6 -22.8 dBm
2LO Leakage at RF Port P
LO
= +3dBm -29.7 dBm
LO Leakage at IF Port P
LO
= +3dBm (Note 7) -28.4 dBm
5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS—f
RF
= 2300MHz TO 2900MHz,
HIGH-SIDE LO INJECTION (continued)
(
Typical Application Circuit
with tuning elements outlined in 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
IF
= 300MHz, f
LO
= 2600MHz to 3200MHz, f
RF
< f
LO
,
T
C
= -40°C to +85°C. Typical values are for T
C
= +25°C, V
CC
= 5.0V, P
LO
= 0dBm, f
RF
= 2600MHz, f
LO
= 2900MHz, f
IF
= 300MHz.
All parameters are guaranteed by design and characterization, unless otherwise noted.) (Note 6)